JBL ARC SUB10 DS-10 Powered Subwoofer Owner’s Manual

: June 16, 2024
: JBL

Table of Contents

ARC SUB10 DS-10 Powered Subwoofer
Product Information
General Specifications
Detailed Specifications
- Product Usage Instructions
Safety Information
Leakage/Resistance Check
- FAQ
Q: Where can I find a replacement power cord for the ARC
Q: Are there any critical components that require exact

ARC SUB10 DS-10 Powered Subwoofer

Product Information

General Specifications

Product Name: ARC SUB10/DS-10 Powered Subwoofer
Manufacturer: JBL Consumer Products Inc.
Model Number: ARC SUB10/DS-10
Manufacturer Address: 250 Crossways Park Drive Woodbury, N.Y.
11797
Contact Information: 1-800-336-4JBL (in the USA)
Website: https://manual-hub.com/

Detailed Specifications

The detailed specifications for the ARC SUB10/DS-10 Powered
Subwoofer are as follows:

Amplifier/Subwoofer Type: Active
Power Source: AC Power
Power Output: Please refer to the user manual for specific
power output details.
Power Cord Type: SPT-2 or better with polarized plug, UL
approved wired with the hot side to fused side.
Fuse Type: SLO BLO 0.63A 250V T type.
Transformer Type: Factory replacement only.
Bridge Diode Type: Factory replacement only.
Filter Capacitors: C1, C2 – 3300uF, 50V electrolytic filter
caps. Replacement parts should have the same working voltage and
capacitance rating.
Safety Components: All components identified with the IEC
symbol in the parts list and schematic diagram are critical for
safety. Use only replacement parts designated in the parts list or
parts with the same rating of resistance, wattage, or voltage.

Product Usage Instructions

Safety Information

Before using the ARC SUB10/DS-10 Powered Subwoofer, please read
and understand the following safety precautions:

Warning: Any person performing service on this
unit will be exposed to hazardous voltages and the risk of electric
shock. Only qualified service personnel should perform service
procedures.
Caution: This unit does not have a power
switch. Hazardous voltages are present within the unit whenever it
is plugged in. Before plugging in the amplifier, ensure that its
rated voltage corresponds to the voltage of the AC power source to
be used. Do not exceed rated voltage by more than 10%.

Leakage/Resistance Check

Before returning the unit to the customer, perform a leakage or
resistance test as follows:

Leakage Current: Note that there is no power
switch on this unit. When the power plug is plugged in, the unit is
live. Connect the unit to its rated power source. Using an ammeter,
measure the current between the neutral side of the AC supply and
chassis ground of the unit under test. If leakage current exceeds
0.5mA, the unit is defective. Reverse the polarity of the AC supply
and repeat.
Resistance: Measure the resistance from either
side of the line cord to chassis ground. If it is less than 500k
ohms, the unit is defective.

WARNING! DO NOT return the unit to the customer
if it fails one of these tests until the problem is located and
corrected.

FAQ

Q: Where can I find a replacement power cord for the ARC

SUB10/DS-10 Powered Subwoofer?

A: You can use an SPT-2 or better power cord with a polarized
plug. Make sure it is UL approved and wired with the hot side to
the fused side. Please use a power cord with the factory
replacement panel strain relief only.

Q: Are there any critical components that require exact

replacements?

A: Yes, there are several critical components that require exact
replacements. These include the fuse (F1), power cord (PWRCORD),
transformer (TRX), bridge diode (DBR), and certain capacitors (C1,
C2). Please refer to the parts list and schematic diagram for more
information.

ARC SUB10/DS-10
Powered Subwoofer
SERVICE MANUAL

JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1-800-336-4JBL in the USA
A Harman International Company
Rev A 10/2000

Amplifier/Subwoofer

SAFETY INFORMATION

ARC SUB10/DS-10

Warning
Any person performing service of this unit will be exposed to hazardous voltages and the risk of electric shock. It is assumed that any person who removes the amplifier from this cabinet has been properly trained in protecting against avoidable injury and shock. Therefore, any service procedures are to be performed by qualified service personnel ONLY!
Caution
This unit does not have a power switch. Hazardous voltages are present within the unit whenever it is plugged in.
Before the amplifier is plugged in, be sure its rated voltage corresponds to the voltage of the AC power source to be used. Incorrect voltage could cause damage to the amplifier when the AC power cord is plugged in. Do not exceed rated voltage by more than 10%: operation below 90% of rated voltage will cause poor performance or may shut the unit off.
Leakage/Resistance Check
Before returning the unit to the customer, perform a leakage or resistance test as follows:
Leakage Current. Note there is no power switch on this unit. When the power plug is plugged in, the unit is live. Connect the unit to its rated power source. Using an ammeter, measure the current between the neutral side of the AC supply and chassis ground of the unit under test. if leakage current exceeds 0.5mA, the unit is defective. Reverse the polarity of the AC supply and repeat.
Resistance. Measure the resistance from either side of the line cord to chassis ground. If it is less than 500k ohms, the unit is defective.
WARNING! DO NOT return the unit to the customer if it fails one of these tests until the problem is located and corrected.

List of Safety Components Requiring Exact Replacements

F1

Fuse SLO BLO 0.63A 250V T type.

UL approved

PWRCORD

SPT-2 or better with polarized plug, UL approved wired with the hot side to fused side. Use with factory replacement panel strain relief only.

TRX

Transformer. Use only factory replacement.

DBR

Bridge diode. Use only factory replacement.

C1, 2

3300uF, 50V electrolytic filter caps. Be sure replacement part is at least the same working voltage and capacitance rating. Also the lead spacing is important. Incorrect spacing may cause premature failure due to internal cabinet pressure and vibration.

C6

10uF 50V ±20% Elect. Radial NP Safety Part

See Page 15 Service Bulletin

R29 S53AMI
CMC1 L1

470W 0.25W ±5% METAL OXIDE Safety Part Power Amp module. Use only factory replacement
mc4438 Safety Part
mc4436 Safety Part

Critical Components
All components identified with the IEC symbol in the parts list and the schematic diagram designate components in which safety can be of special significance when replacing a component identified with . Use only the replacement parts designated in the parts list or parts with the same rating of resistance, wattage or voltage.

2

Amplifier/Subwoofer

ARC SUB10/DS-10

TABLE OF CONTENTS

SAFETY INFORMATION ………………………………………..2

SERVICE BULLETIN JBL9903 – APRIL 1999 …………14

TABLE OF CONTENTS………………………………………….3 GENERAL SPECIFICATIONS …………………………………3 DETAILED SPECIFICATIONS…………………………………4

SERVICE BULLETIN JBL2000-01 JANUARY 2000……………………………………………………15
TROUBLESHOOTING TIPS AND SOLUTIONS TO COMMON SERVICE PROBLEMS ……………………16

ARC SUB10/DS-10 CONTROLS AND THEIR FUNCTION …………………………………………………6
CAUTIONS AND WARNINGS …………………………………7
ARC SUB10/DS-10 BLOCK DIAGRAM ……………………9
SPEAKER CONNECTIONS…………………………………..10
TROUBLESHOOTING ………………………………………….11
ARC SUB10 / DS-10 TEST SET UP AND PROCEDURE………………………………………………………12
ARC SUB10 / DS-10 POWER AMP MODULE TESTING FLOW CHART ……………………….13

CABINET EXPLODED VIEWS ………………………………17 AMPLIFIER EXPLODED VIEW ……………………………..18 ARC SUB10/DS-10 PACKING EXPLODED VIEWS…19 ARC SUB10 Version 5 PCB………………………………….20 ARC SUB10/DS-10 Version 5.1 PCB……………………..21 ARC SUB10/DS-10 ELECTRICAL PARTS LIST ……..22 ARC SUB10/DS-10 INTEGRATED CIRCUITS & TRANSISTORS ……………………………………………………23 ARC SUB10/DS-10 SCHEMATIC…………………………..24

GENERAL SPECIFICATIONS
Amplifier Power (RMS) . . . . . . . . 100 watts Driver 10″ . . . . . . . . . . . . . . High-Polymer Laminate Inputs . . . . . . . . . . . . . . . . Line Level and Speaker Level Outputs . . . . . . . . . . . . . . . Speaker Level (only active if Speaker Level Inputs are used) High-Pass Frequency . . . . . . . . . High-Pass filter at 180Hz (only active if Speaker Level Inputs are used) Frequency Response . . . . . . . . . 50Hz – 150Hz
(determined by crossover setting)

ARC SUB10
Dimensions (H x W x D) . . . . . . . . 11-1/2 x 17-1/8 x 16-1/2″ (292 X 435 X 419mm)
Weight . . . . . . . . . . . . . . . . 27 lbs/12.3 kg

DS-10
14-1/4 x 14-1/4 x 16″ (362 x 362 x 406mm)
27 lbs/12.3kg

3

Amplifier/Subwoofer

DETAILED SPECIFICATIONS

ARC SUB10/DS-10

LINE VOLTAGE US 120vac/60Hz EU 230vac/50-60Hz

Yes/No Hi/Lo Line Yes 108-132 Yes 207-264

Nom. 120 230

Unit Vrms Vrms

Notes Normal Operation Normal operation, MOMS required

Parameter Amp Section

Specificatio n

Unit

Type (Class AB, D, other)

D

n/a

Load Impedance (speaker)

4

Ohms

Rated Output Power

100 Watts

THD @ Rated (RMS) Power

0.3

%

THD @ 1 Watt

0.1 %

DC Offset

10

mV-DC

Damping factor

50

DF

QA Test Limits
n/a n/a
1 0.5 20 40

Conditions

Notes

Nominal
1 input driven 22k filter
22k filter @ Speaker Outputs Measured at amplifier board

Class D Preferred…Sink required for Class AB Z-curve required Peak power 50 Watts
Measure at amp board THD < 0.1% 50 Watts @ 50Hz

Input Sensitivity Input Frequency Line input
Speaker/Hi Level Input

40

Hz

100

mVrms

2.6

Vrms

50 ± 2dB
± 2dB

Nominal Freq. To Rated power/Vol @ Max
To Rated power/Vol @ Max

Single input driven Un-Balanced GND Zo=600
Single input driven Un-Balanced GND Zo=600

Signal to Noise

SNR-A-Weighted

100 dBA

70

relative to rated power

A-Weighting filter

SNR-unweighted

80

dBr

70

relative to rated power

22k filter

SNR rel. 1W-unweighted

65

dBr

55

relative to 1W Output

22k filter

Residual Noise Floor

1

mVrms

2

Volume @max, using DVM or A/P (BW=20 KHz)

Residual Noise Floor

1.5

2

mVrms(max)

Volume @max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics) (BW=20 Khz)

Input Impedance

Line Input

10K ohms

n/a

Speaker/Hi Level Input

4.7K ohms

n/a

Nominal Nominal

Zin Minimum, (test frequency 1 Khz) Zin Minimum, (test frequency 1 Khz)

Filters

Speaker in LP 2nd order variable

50-150

Hz

Subsonic filter (HPF) 2nd order

25

Hz

Speaker out HP filter

Left & Rigth

200 Hz

Left & Rigth

100 Hz

± 10

-3db Point

± 10

Speaker input – Spkr out 4 Ohms

± 10

Speaker input – Spkr out 8 Ohms

4

Amplifier/Subwoofer

ARC SUB10/DS-10

Limiter

THD at Power

Max.

Output

n/a

functional

Maximum Output Power

Maximum THD as a result of limiting.

Features

—

Volume pot Taper (lin/log)

LOG

—

HP Speaker out

functional functional

Refer to filter section

Input Configuration Line In & LFE Spkr/Hi Level In

YES — YES —

functional functional

LR dual RCA jack Spring type connector

Signal Sensing (ATO)

Auto-Turn-On

YES

ATO Input test frequency

40

Hz

ATO Line level in

5

mV

ATO Level Speaker in

50

mV

ATO Turn-on time

5

ms

Auto Mute/ Turn-OFF Time

15

minutes

functional functional functional functional
functional
17

Auto – on selection switch in Auto Bicolor LED (Green=signal/ red= No signal)
”
”
”
Amp connected and AC on, then input signal applied
T before muting, after signal is removed Auto turn of time (T) must be 3 > T < 15 Minutes

Power on Delay time

0.1 sec.

5

AC Power Applied

Transients/Pops ATO Transient Turn-on Transient Turn-off Transient

5

mV-peak

50

2

Vpk-pk

2

Vpk-pk

2

@ Speaker Outputs @ Speaker Outputs

AC Line cycled from OFF to ON AC Line cycled from ON to OFF

Efficiency

65

%

64

Stand-by Input Power

15

Watts

18

Power Cons. @ rated power

76

Watts

80

@ nom. line voltage @ nom. line voltage

Nominal Line voltage 120 VAC / 230 VAC Auto turn of time (T) must be 3 > T < 15 Minutes
75 Watts @ 4 Ohms nominal line voltage

Protection

Short Circuit Protection

YES

YES Thermal Protection

Line Fuse Rating US (120v) version EU

Amps Amps

functional functional

Direct short at output

Amplifier should resume operation after short circuit condition removal

@1/8 max unclipped Power IEC Noise Temperature rise in accessible metal parts

using driver load

should not exceed 35K rise for 120v version

or 30K rise for European versions (refer to

requirements sheet).

0.6

Type-T or Slo Blo-250 V

Internal fuse

TBD

Type-T or Slo Blo-250 V

External fuse with UL/SEMKO rated holder

5

Amplifier/Subwoofer

ARC SUB10/DS-10

ARC SUB10/DS-10 CONTROLS AND THEIR FUNCTION

1. Volume Control – adjusts the level of volume of the subwoofer relative to the rest of the system.
2. Power LED – This light will be RED when the unit is plugged in and not receiving a signal; when the unit receives a signal, the light will cycle to GREEN. If no signal is received after 5 minutes the light will cycle back to RED (standby) until a signal is present again.
3. Crossover Frequency – This controls the highest frequency the subwoofer will reproduce. It allows a seamless transition from the subwoofer to the satellite speakers. When the control is at the “50” position, very few high frequencies will be heard. This position is best suited to large main speakers. For most applications, the control should be set somewhere near the mid position. For listeners using very small speakers, best results will be obtained with the control at the “150” position.
4. Low Level Input Jacks – These left and right Line Level Inputs are normally used when the receiver/ processor has line-level “pre-amp out ” or “subwoofer out” jacks.
5. High Level Inputs – These High Level Inputs are for receivers that do not have line-level “pre-amp out” or “subwoofer out” jacks. When a pair of main or satellite speakers are attached to the OUTPUT terminals, frequencies below 180 Hz are attenuated by the high-pass filter.

Note: DS-10 controls are shown here

Volume

1

Min Max

Power

2

Crossover Frequency

3

50 150

Low L

R

Level

4

In

R

5

L

SPKR SPKR

IN

OUT

6

Amplifier/Subwoofer

CAUTIONS AND WARNINGS

ARC SUB10/DS-10

BEFORE THIS AMPLIFIER IS PLUGGED IN, make sure its rated voltage corresponds to the voltage of the AC power source to be employed. Failure to use the correct voltage could cause damage to the amplifier when the AC power cable is plugged in. Do not exceed the rated voltage by more than 10%; operation below 90% will degrade performance or cause the unit to shut off.

1. TROUBLE SHOOTING BEFORE OPENING
Check connections, control settings, driver and other possible external problems. If there is Output, determine if all controls and Inputs function properly. Rotate Pots over full range while applying lateral and vertical oscillating forces to locate possible intermittent function. High Level Inputs should be tested individually both differentially (signal from “-” to “+” with normal output) and in common mode (signal from low level ground to both “+” and “-” shorted together, giving virtually no output). While passing a signal, corner drop the enclosure a few inches to expose possible intermittent problems. Check woofer for rubbing of voice coil or tears in cone or surround. Check cabinet for loose extraneous articles which may have been pushed into port.
2. REMOVING THE AMPLIFIER.

Verify AC plug is disconnected. See WARNINGS in section 2.
To prevent loose hardware from reducing safety spacings, it is essential that all hardware be replaced in the same manner as it was removed, with lock washers under all nuts, proper torque on screws and thread locking sealer on the transformer nuts.
If line core or strain relief are replaced, it is necessary to seal them completely to panel with an approved conformal coating to prevent air “whistling” through any openings from woofer pressure.

There are voltages and hot components at many points in the amplifier which can, if contacted, cause personal injury. Be extremely careful. Any adjustments or service procedures that require operation of the amplifier out of its enclosure should be performed only by trained service personnel. Refer to PCB drawings for locations of hazards and familiarize yourself with their locations before starting. A. Remove the subwoofer grille.
B. Remove the (4) 1″ Black PPH screws attaching the woofer to the cabinet.
C. Remove the woofer, unplug the two connecting wires.
D. Remove the (8) ¾” screws black pph screws attaching the ampifier assembly to the cabinet.
E. Remove the ampifier assembly.
F. For access to the input panel, first remove the three outer screws. Remove knob and nuts from potentiometers. Cut away the sealant securing the cover to the faceplate. The input PCB should now pull out completely.
3. TROUBLE SHOOTING AFTER REMOVAL

To reduce the risk or electric shock and/or fire, replace items as marked on schematic with the safety marking only with the exact replacements listed in the safety component list, page 2. If exact replacements are not available, order them from the factory or an authorized service center.
A. Check fuse F1. If blown visually check transformer for discoloration, and large capacitors (C1, C2) for bulges or venting. Check for shorts with an Ohmmeter, (see schematic).
B. With ohmmeter, verify voice coil of woofer is 3.9 ohms, and windings of transformer are continuous.
C. Examine board and wiring for obvious damage, broken or poorly soldered connections, or discoloration.
D. Repair or replace items identified above.
E. For live power testing, attach a 4 ohm 100 watt resistor to the output wires.
F. If the LED is not on, check for fuse continuity and then for cold solder joints on CMC1 and bridge diode.
G. With a signal present at the input, the output to the power amp is at pin

8 of U1. If the signal is not present at pin 8, there is a problem with

preamp section. Most likely, a cold solder joint will be the

7

Amplifier/Subwoofer

ARC SUB10/DS-10

problem. Track back the signal path to locate problem.
H. If signal present at pin 8, but still no sound, check for cold solder joints on all power resistors, R4a and R4b and the the power amp module. If C24 is blown, C6 is not soldered or is defective. Check the signal at R2. On the down signal side, the voltage signal should be very small. If signal is similar on both sides of R2, the amp module is likely defective.
I. If you hear a mechanical clicking noise from the amp module, this indicates that the short circuit protection has been engaged. Check that Q3, Q4 and Q5 are soldered correctly. Also check that Q3 is not shorted to power amp case.
J. If you have to replace the power module, be very, very patient with the solder removal from this single sided PCB. COMPLETELY REMOVE SOLDER BEFORE TRYING TO REMOVE THE MODULE! (See page 23)
K. Assembly notes. Top side soldering as below:
J5: solder both ends
J3: solder both ends
J1: solder both ends
R48: solder GND end
At junction of C7a/C7b: Pin to GND
Crossover pot Gnd wire from PDB pad to POT barrel. (Only physical contact required between pot body and faceplate).

RCA jack (chassis) to the line neutral of AC cord. Resistance should be >100MW .
B) Hi-Pot Test
If a UL approved Hi-Pot tester is available, test line & neutral of AC cord to outer shell of RCA jack (chassis) at 1100VAC for 2 seconds. Observe all of instrument manufacturer’s instructions and safety warnings in performing this test.
Connect subwoofer system to a music source. Play at high level while checking for air leaks around panel edge, driver, panel jacks and controls, and voice coil problems such as rubbing or loose turns. With the crossover “frequency” set to 50Hz, very little of the voice content should be heard.
4. REASSEMBLY
Follow all disassembly instructions in reverse order. If the input plate has been removed, it must be re-sealed with a small bead of silicon seal or air leaks may result.

After repair, inspect for possible safety hazards, including loose hardware, missing lock washers, correct fuse and lead dress of primary wires (these must be held in position with cable ties so that they cannot touch secondary components). With ohmmeter, check that panel is connected to signal ground.
It is essential that the following safety insulation test be performed prior to returning the Power SubWoofer to the customer, using one of the following methods.
A) Insulation Resistance Test With a 500VDC Insulation Tester, Check insulation from the outer metal contact of the
8

Amplifier/Subwoofer
A 1

ARC SUB10/DS-10 BLOCK DIAGRAM

B

C

D

ARC SUB10/DS-10
E 1

L

R

2

SPKR In

Low Level In L

Summing

2

SPKR Out

Circuit
R

High Level

Low Level

Input

Volume

3

Control

3

4 5 6 7
A

Equalization 4
Waveform Recovery and Fixed Low Pass
5 Crossover
Control

Short Circuit Protection

Power Amplifier

B

C

D

6
Woofer 7
E
9

Amplifier/Subwoofer

SPEAKER CONNECTIONS

ARC SUB10/DS-10

Note: DS-10 controls are shown here

Line Level
Note: Some receivers/amplifiers have a single (mono) subwoofer output. In this case, it is recommended that you use a “Y”-connector (not included) to connect to both right & left inputs and maximize the subwoofers performance.

Volume Min Max Power

Crossover Frequency

50

150

Low L

R

Level

In

RECEIVER/AMPLIFIER

SUBWOOFER OUT

LEFT

RIGHT

MAIN SPEAKER OUTPUT

RIGHT

LEFT

R

L

SPKR SPKR

IN

OUT

RIGHT LOUDSPEAKER

LEFT LOUDSPEAKER

Speaker Level
Note: When using the speaker-level connections, the built-in high-pass filter will also limit the low frequencies being sent to the satellite speakers. This means that your satellites won’t have to try to reproduce the information the subwoofer is playing.

RECEIVER/AMPLIFIER

MAIN SPEAKER OUTPUT

LEFT

RIGHT

Volume Min

Max

Power

Crossover Frequency

50

150

Low L

R

Level

In

R

L

SPKR SPKR

IN

OUT

LEFT

RIGHT

LOUDSPEAKER LOUDSPEAKER

10

Amplifier/Subwoofer

ARC SUB10/DS-10

TROUBLESHOOTING

If you used the high-level (speaker) inputs and there is no sound from any of the speakers, check the following:
n Receiver/amplifier is on and a source is playing.
n Powered subwoofer is plugged in.
n Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured.
n Review proper operation of your receiver/amplifier.

If you used the line-level inputs and there is no sound from the subwoofer, check the following:
n Receiver/amplifier is on and a source is playing.
n Powered subwoofer is plugged in.
n Check all wires and connections between receiver/ amplifier and subwoofer. Make sure all wires are connected. Make sure none of the wires are frayed, cut or punctured.
n Review proper operation of your receiver/amplifier.

If there is low bass output, check the following:
n Make sure the connections to the left and right “Speaker Inputs” have the correct polarity (+ and ).
n Make sure that the subwoofer is plugged into an active electrical outlet.
n Adjust the crossover point.
n If you are using a Dolby* Digital/DTSÒ receiver or processor, make sure that the subwoofer adjustments on the receiver/processor are set up correctly.
n Slowly turn the level Control clockwise until you begin to hear the desired amount of bass.

11

Amplifier/Subwoofer
ARC SUB10 / DS-10 TEST SET UP AND PROCEDURE

ARC SUB10/DS-10

CD PLAYER

AC VOLT METER ( 6V )

LINE LEVEL

ARC SUB10 / DS-10 UNDER TEST

Volume Min Max Power

PRE AMP AMPLIFIER
SPEAKER LEVEL

Crossover

FROM LINE-LEVEL Frequency

SOURCE

50

150

Low L

R

Level

In

SPEAKER OUTPUT FROM AMPLIFIER

R

L

SPKR SPKR

IN

OUT

General Function
UUT = Unit Under Test 1. Connect both right and left line level inputs (RCA) to signal generator and UUT. Use Y-cable if necessary from
mono source. VOLUME control should be full counterclockwise.

2. Turn on generator, adjust to 50mV, 50 Hz.

3. Plug in UUT; red LED should be ON. Turn VOLUME control full clockwise.

4. LED should turn Green; immediate bass response should be heard and felt from port tube opening.

5. Turn off generator, turn VOLUME control fully counterclockwise, disconnect RCA cables.

6. Connect one pair of speaker cables to either high level input terminal on UUT. Cables should be connected to an integrated amplifier fed by the signal generator.

7. Turn on generator and adjust so that speaker level output is 2.0V, 50 Hz. Turn VOLUME control full clockwise.

8. Green LED should light, immediate bass response should be heard and felt from the port tube opening.

Sweep Function 1. Follow steps 1-4 above, using a sweep generator as a signal source.
2. Sweep generator from 20Hz to 300Hz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or any other noises. If any unusual noises are heard, remove driver and test.

Driver Function 1. Remove driver from cabinet; detach + and – wire clips.
2. Check DC resistance of driver; it should be 3.2 to 3.9 ohms.
3. Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier fed by a signal generator and adjust so that speaker level output is 5.0V.
4. Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises.

12

Amplifier/Subwoofer

ARC SUB10/DS-10

ARC SUB10 / DS-10 POWER AMP MODULE TESTING FLOW CHART

START

Resistance check between V+ V- and O/P O/P to GND should > 5K

No OK
Yes
Power up with no signal I/P LED RED
No OK
Yes
Check I/P of module to
GND 0V D.C.

Replace Module
Check fuse transformer,
CMC, rectifier, C1,
C2

No OK
Yes
Check switching frequency 100KHHz
+/-10% ~1Vpp

Check C12 and Pre-AMP

No OK
Yes
Power AMP OK END

Check V+, V-, +/-15V voltage to
module
No OK
Yes Check 6V to
module measure to V-
No OK
Yes
Check S/D voltage to module (5V) measure to V-
No OK
Yes Check O/P to module for 80Vpp square
wave measure to
GND
No OK
Yes Check L1, L2, C6, C24

Check transformer,
CMC, rectifier, C1, C2, D9, D10,
R16, R17
Check D6, R9, R46
Check D1, R1, Q3, Q4, Q5 and SCP

13

Amplifier/Subwoofer

SERVICE BULLETIN JBL9903 – APRIL 1999

ARC SUB10/DS-10

To all JBL Service Centers Model: ARC SUB10 / DS-10

This considered a Minor repair

Subject: Check Solder Joints in Event of Failure

Some performance related complaints in the ARC SUB10 / DS-10 powered subwoofer may be caused by cold Solder connections between the 28 pins of the Power Amp Module and the main circuit board. When troubleshooting, failure to check these joints can result in erroneous conclusions or wasted time.

In the event you receive a ARC SUB10 / DS-10 Subwoofer with the complaints “Dead, or No Output, or Motorboating (Oscillation)”, perform the steps listed below first before any further troubleshooting takes place:

Unplug all cables, lay the subwoofer on a padded surface.
Remove all Philips screws around the outer perimeter of the amplifier faceplate.
Remove amplifier assembly; you should be able to remove the amplifier far enough out of the cabinet to
service it without removing the woofer wires.
Locate the Power Amp Module; it is the large gray component with a metal case. On the Solder side of the
circuit board are the 28 Solder connections to the Module.
Regardless of whether you can visibly see breaks in any of the connections or not, carefully re-Solder all 28
pin connections, adding 60/40 rosin core Solder. Take care not “bridge” any connections on the board with Solder.
Inspect the Solder joints to the main filter capacitors C1 and C2 on the main PCB and re-Solder if needed.
Replace the amplifier assembly back into the cabinet; replace the screws.
Test the unit by applying a signal from a music source, adjust the volume to a moderate level and confirm the
original problem has been corrected.

14

Amplifier/Subwoofer
SERVICE BULLETIN JBL2000-01 – JANUARY 2000

ARC SUB10/DS-10

To all JBL Service Centers Model: ARC SUB10 / DS-10
Subject: Failure of C6

Warranty labor rate: MINOR repair

In the event you receive a JBL subwoofer corresponding to one of the above models with the complaint “no output” and capacitor C6 (10uf 50v NPE) is damaged in the amplifier, replace with the following part: JBL part# 30712 (10uf 100v NPE)

General reference for location only; not all parts or designators may conform to these drawings It is also recommended following the repair that the instructions included in bulletin #JBL9903 are followed.

Models ARC SUB10 / DS-10

Serial number 120/230V All serial numbers affected

Status Replace if damaged

Action Replace C6 with JBL part# 30712

15

Amplifier/Subwoofer

ARC SUB10/DS-10

TROUBLESHOOTING TIPS AND SOLUTIONS TO COMMON SERVICE PROBLEMS

For models: ARC SUB 8, ARC SUB 10 TIP# JBLTT2000-01
Complaint:
How do you replace or service any of the front panel components on the Subwoofer faceplate for model ARC SUB 10 ?
Probable Cause:
The High level Input terminals, potentiometers, RCA jack, and switch(es) are behind a sealed cover to protect the air-tight integrity of the cabinet enclosure.
Solution: 1) Unplug all external cables from the subwoofer; place the cabinet on a padded surface. 2) Remove any subwoofer grille; remove the woofer from the cabinet. Detach the two connections from the
woofer terminals.
3) Remove all Phillips screws holding the amplifier to the cabinet; remove the amplifier. 4) Remove all knobs, nuts, and Philips screws from the outer control section of the amplifier faceplate. 5) Locate the sealed cover on the inside of the amplifier faceplate (see illustration); the bead of adherent must
be broken to remove the main PCB with front panel components from the plastic faceplate. This is most easily accomplished by CAREFULLY using a box cutter, exacto knife, or similar sharp instrument. First scrape all excess material from the three surfaces; then force the blade into the groove between the rear cover and the faceplate. DO NOT attempt to remove the rear cover from the main PCB.
6) When enough material is removed, the main PCB with cover can be pulled away from the faceplate,
exposing the components.
7) After servicing, a bead of “silicon seal” or similar adherent must be applied to all surfaces where it was
removed. Reassemble the rest of the components in reverse order.

16

17

DS-10 LABEL #201150

SCREWS (8X)

10″ WOOFER #201000

SCREWS (4X)

KICKPLATE with LOGO #201070

L

R

SPIKnR

SOPuKtR

ARC SUB 8 Discrete Digital AMPLIFICATION

JBL CONSUMER PRODUCTS, INC. NORTHRIDGE, CA MADE IN CANADA Serial No. XXXXXX- XXXXX

~ 120VAC 60Hz 110W LR 110113 NRTL

CAUTION RISKDOOF NEOLTECOTPREICN SHOCK TO REDUCE THE RISK OF ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

Low Level In L

Crossover Frequency

R

50

150

Power Min

Volume Max

AMP ASSEMBLY (NOT FOR SALE)

GRILLE #201010
SCREWS (4X)
WOOFER TRIM RING #201060

GRILLE RETAINER
CUPS (4) #201080

DS-10 CABINET EXPLODED VIEW
CABINET (NOT FOR SALE)

ARCSUB10 LABEL #200160

SCREWS (8X)

SCREWS (4X)
10″ WOOFER #200500

L

R

SPKR

In

SOPuKtR

ARC SUB 8 Discrete Digital AMPLIFICATION

JBL CONSUMER PRODUCTS, INC. NORTHRIDGE, CA MADE IN CANADA Serial No. XXXXXX- XXXXX

~ 120VAC 60Hz 110W LR 110113 NRTL

CAUTION RISKDOOF NEOLTECOTPREICN SHOCK TO REDUCE THE RISK OF ELECTRIC SHOCK. DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

Low Level In L

Crossover Frequency

R

Power

50

150

Min

Volume Max

AMP ASSEMBLY (NOT FOR SALE)

GRILLE RETAINER CUPS (4) #201080

ARC SUB10 CABINET EXPLODED VIEW
CABINET (NOT FOR SALE)

GRILLE #200110

CABINET EXPLODED VIEWS

ARC SUB10/DS-10

Amplifier/Subwoofer

AMPLIFIER EXPLODED VEIW

ARC SUB10/DS-10

A

B

C

D

E

Ref.# Part #

Description

Qty

11

70170 #4×0.5″ screws to secure input jacks

3

2

70171 #10 x 1″ machine screw bolts for

4

transformer 4 per unit

3 4 5
6
2 10
11

70172 #10 keps nuts for transformer

4

70173 #6 x 0.5″ screws for fuse PCB

2

A70301 Hum shield Metal bracket mounted

1

on transformer

A70302 Knobs

2

80108 TRX Transformer #4340 SAFETY PART 1

80109 F1 250V, 0.63A, T type slo blo fuse

1

12 80105 Power cord, 2 conductor SAFETY PART 1

13 80106 Fuse PCB complete with connectors

1

SAFETY PART

14 15
3
16 17 18 19

80107 Main PCB Motherboard SAFETY PART 1

200603 ARCSUB10 Faceplate with labels

1

SAFETY PART

201003 DS-10 Faceplate with labels

1

SAFETY PART

A70304 Air leak cover SAFETY PART

1

70305 Pwr cord strain relief SAFETY PART

1

108320 Dual RCA input jacks

1

108115 High level input and output terminals

1

4

DS-10 Shown

ARC SUB10/DS-10

1

Amplifier Assembly

Exploded View

3

2

10
5 14

4 3
11
13

16

4

17

Volume

6

Min Max

5

Power

Crossover Frequency

6

50

150

Low L

R

Level In

18

6

1

15 2

5 12
6

R
19

L

7

SPKR SPKR

7

IN

OUT

A

B

C

D

E

18

Amplifier/Subwoofer

ARC SUB10/DS-10 PACKING EXPLODED VIEWS

ARC SUB10/DS-10

DS-10 PACKING
RUBBER FEET (4) #101145
WARRANTY CARD #331993-001
OWNER’S MANUAL #201030 (120V)
STYROFOAM CORNERS (8) PER BOX

DS-10 PLASTIC BAG

DECADE

SERIES

STYROFOAM CORNERS (8) PER BOX

ARC SUB10 PACKING
RUBBER FEET (4) #101145
WARRANTY CARD #331993-001
OWNER’S MANUAL #200130 (120V)
FOAM CORNER PADS
ARC SUB10
PLASTIC BAG
FOAM CORNER PADS

CARTON #201020

DS-10

CARTON #200120

ARC SUB10

19

Amplifier/Subwoofer
A 1

ARC SUB10 Version 5 PCB

B

C

D

The PLAIN 5 PCB was used in ARCSUB10

PLAIN 5 – Component Side Trace

ARC SUB10/DS-10
E 1

2

3

4

PLAIN 5 – Solder Side Trace Layer as viewed through the board

5

6

7 A

B

C

7

D

E

20

Amplifier/Subwoofer
A 1

ARC SUB10/DS-10 Version 5.1 PCB

B

C

D

PLAIN 5.1 – Component Side Trace

ARC SUB10/DS-10
E 1

2

3

4

PLAIN 5.1 – Solder Side Trace Layer as viewed through the board

5

6

7 A

B

C

7

D

E

21

Amplifier/Subwoofer

ARC SUB10/DS-10 ELECTRICAL PARTS LIST

ARC SUB10/DS-10

Ref. #

Part Number Description

Qty

Product Safety Notice: Components identified by the IEC symbol in the part list and on the schematic designate safety components in which safety can be of
special significance. When replacing a Active component with the symbol . Use only replacement parts with the same rating hardware designated in the parts list.

Capacitors

C1, C2

30701 3300uF 50V ±20% Elect. Radial Safety Part 2

C3, 4, 5, 8, 9, 30502 100nF 50V ±10% Mono-ceramic axial

12

10, 14, 17, 18,

19, 20, 24

C6

30705 10uF 100V ±20% Elect. Radial NP Safety Part1

See Page 15 Service Bulletin

C7A, B

30505 100nF 100V ±20% Metal Polyester Rad

2

C7

30509 2.7nF 50V ±10% Mono-ceramic axial

1

C10

30504 100nF 50V ±10% Mono-ceramic axial

1

C11

30702 100uF 35V ±20% Electrolytic Radial

1

C12

30714 10uF 35V ±20% Electrolytic Radial

1

C13

30506 1nF 50V ±10% Mono-ceramic axial

1

C15, 16 30704 or 30707 220uF 50V ±20% Electrolytic Radial Bipolar 2

C21, 28

30507 10nF 50V ±20% Mono-ceramic axial

2

C25

30503 2.2nf 50V ±10% Mono-ceramic axial

1

Diodes

DBR

50100 Bridge Rect 200V 4A Safety Part

1

D1

50101 1N5256B 30V ±5% 0.5W Zener

1

D3

50102 1N4749A 24V ±5% 1W Zener

1

D6

50103 1N5234B 6.2V ±5% 0.5W Zener

1

D7, 8

50104 1N4148 100V ±5% 0.1A

2

D9,10

50105 1N4744A 15V ±5% 1W Zener

2

LED 1 or 2

50106 Dual Cir LED (2 legged)

Integrated Circuit

U1

60100 LM324 Quad OpAmp +/-15

1

Resistors

FRQ pot

40401 100kW 0.25W ±10% Single Log Pot

1

VOL Level pot 40402 5kW 0.25W ±10% Single Linear Pot

1

R1

40403 2.2MW 0.25W ±5% carbon film

1

R2

40408 8.45kW 0.25W ±1% metal film

1

R3

40412 33.2kW 0.25W ±1% metal film

1

R4A, B

40105 0.1W 0.5W ±5% 2pcs.

2

R5, 6

40420 1kW 0.25W ±5% carbon film

2

R7

40718 3.3kW 0.25W ±5% carbon film

1

R8

40417 47kW 0.25W ±5% carbon film

1

R9

40421 3.9kW 5W ±5% 3W can be used

1

R10, 13

40748 2kW 2W ±5% carbon film

2

R11, 12

40112 665W 0.5W ±5% carbon film

2

R14, 20

40405 4.7kW 0.25W ±5% carbon film

2

Ref. #

Part Number Description

Qty

R15, 42, 43, 57 40406 100kW 0.25W ±5% carbon film

4

R16

40101 820W 2W ±5% carbon film

2

R17

40407 330kW 0.25W ±5% carbon film

1

R18

40423 270kW 0.25W ±5% carbon film

1

R19

40422 1kW 0.5W ±5% carbon film

1

R22

40410 2.2kW 0.5W ±5% carbon film

1

R26

40701 1.0MW 0.25W ±5% carbon film

1

R27

40411 24.9kW 0.25W ±1% metal film

1

R29

40103 470W 0.25W ±5% METAL OXIDE Safety Part 1

R30

40413 274kW 0.25W ±1% metal film

1

R31

40414 49.9kW 0.25W ±1% metal film

1

R32

40415 470kW 0.25W ±5% carbon film

1

R35

40424 332kW 0.25W ±1% metal film

1

R36, 38, 40

40417 47kW 0.25W ±5% carbon film

3

R37

40418 22kW 0.25W ±5% carbon film

1

R39, 48

40419 6.04kW 0.25W ±1% metal film

2

R46

40111 4.7W 0.25W ±5% carbon film

1

R49

40431 68kW 0.25W ±5% carbon film

1

R53, 54, 55, 56 40106 100W 2W ±5% carbon film

4

Transistors

Q1

60151 MPS A13 30V NPN(Darl) Transistor

1

Q2

60152 2N3906 40V PNP Transistor

1

Q3

60156 2N4401 40V NPN Transistor

1

Q4, 5

60154 MPS A56 80V PNP Transistor

2

Miscellaneous

S53AMI

60301

CMC1

80100

L1

80101

L2

80102

TRX

80108

F1

80109

Power Amp module Safety Part

1

2.2mH Choke Safety Part

1

110uH Choke Safety Part

1

2.2uH Ferrite Bead

1

TRANSFORMER #4338 Safety Part

1

FUSE 250V, 0.63A, T type Slo-Blo Safety Part 1

22

Amplifier/Subwoofer

ARC SUB10/DS-10

ARC SUB10/DS-10 INTEGRATED CIRCUITS & TRANSISTORS

S53AMI/S64AMI – Power Amp module SAFETY PART

+6V 15 16
v+ 17 18
O/P 19 20
V- 21 22
+15V 23 SD 24 FR 25 I/P 26
GND 27 -15V 28

1 +6V 2 3 v+ 4 5 O/P 6 7 V8 9 +15V 10 SD 11 FR 12 I/P 13 GND 14 -15V

NOTE: THE FOLLOWING PROCEDURES MUST BE FOLLOWED WHEN INSTALLING NEW S53AMI/S64AMI AMP MODULES: FAILURE TO FOLLOW ONE OR MORE OF THESE STEPS MAY RESULT IN THE INSTANT DESTRUCTION OF THE MODULE WHEN POWERED UP.

Align white indent marker on Amp Module with indent marker on main PCB; alternately observe position of label on the top of the module; incorrectly replacing the Module 180° in the PCB slot will result in its destruction.
All AC powered test instruments (meters, oscilloscopes, etc.) must have a floating ground, i.e. be connected to an isolation transformer.
Align and position the Amp Module before soldering. 4) Attach the amp Module with the mounting screws before soldering or
powering up. 5) Use only rosin-core or non-acid core solder; thoroughly de- flux the
surfaces after soldering.
If the new S53AMI/S64AMI Amp Module has larger mounting hole(s) in the case, and the stock screws no longer will fit, and screws of the proper type cannot be obtained locally order:
(2) part# 60301S (screws)
(2) part# 60301N (nuts)

U1 – (LM324) Quad Op Amp

OUT 4 IN 4- IN 4+ GND IN 3 + IN 3- OUT 3

14 13 12

11

10

9

8

4

3

-+ -+

1

2