aiwa NSX-AJ800 Compact Disc Stereo System User Manual

: June 17, 2024
: Aiwa

Table of Contents

aiwa NSX-AJ800 Compact Disc Stereo System
Product Information
Product Usage Instructions
SPECIFICATIONS
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
NOTE ON BEFORE STARTING REPAIR
DISASSEMBLY INSTRUCTIONS
ELECTRICAL MAIN PARTS LIST
TRANSISTOR ILLUSTRATION
WIRING – 1 (MAIN / FAN)
FL (BJ815GNK) GRID ASSIGNMENT AND ANODE CONNECTION GRID ASSIGNMENT
IC DESCRIPTION
ADJUSTMENT – 1 <TUNER / FRONT> < TUNER SECTION >
CD TEST MODE
MECHANICAL EXPLODED VIEW 1 / 1
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE)
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

aiwa NSX-AJ800 Compact Disc Stereo System

aiwa-NSX-AJ800-Compact-Disc-Stereo-System-product-
image

Product Information

Specifications

Tuner:
- FM tuning range: 87.5 MHz to 108 MHz
- FM usable Sensitivity(IHF): 13.2 dBf
- FM antenna terminals: 75 ohms (unbalanced)
- AM tuning range: 530 kHz to 1710 kHz (10 kHz step), 531 kHz to 1602 kHz (9 kHz step)
- AM usable sensitivity: 350 mV/m
- AM antenna: Loop antenna
Main Amplifier:
- Power output: 125 W + 125 W (50 Hz – 20 kHz, THD less than 1%, 6 ohms)
- Total harmonic distortion: 0.08% (70 W, 1 kHz, 6 ohms, DIN AUDIO)
- Input: VIDEO/AUX: 700 mV, MIC: 1.7 mV (10 kohms)
- Output: FRONT SPEAKERS: 6 ohms or more, STAELLITE SPEAKERS: 8 ohms or more, PHONES: 32 ohms or more
Satellite Amplifier:
- Power output: 15 W + 15 W (50 Hz – 20 kHz, THD less than 1%, 8 ohms)
- Total harmonic distortion: 0.2% (7 W, 1 kHz, 8 ohms, DIN AUDIO)
- Input: VIDEO/AUX: 700 mV, MIC: 1.7 mV (10 kohms)
- Output: FRONT SPEAKERS: 6 ohms or more, STAELLITE SPEAKERS: 8 ohms or more, PHONES: 32 ohms or more
Cassette Deck:
- Track format: 4 tracks, 2 channels stereo
- Frequency response: 50 Hz – 15 kHz
- Recording system: AC bias
- Heads: DECK 1 – playback x 1, DECK 2 – recording/playback x 1, erase x 1
CD Player:
- Laser: Semiconductor laser (l = 780 nm)
- D/A converter: 1 bit dual
- Signal-to-noise ratio: 85 dB (1 kHz, 0 dB)
- Harmonic distortion: 0.05% (1 kHz, 0 dB)
Front Speakers (SX-NAJ801):
- Speaker system: 3 way, bass reflex (magnetic shielded)
- Speaker units: Woofer – 160 mm (63/8 in.) cone, Tweeter – 60 mm (23/8 in.) cone, Super tweeter – 20 mm (13/16 in.) ceramic
- Impedance: 6 ohms
- Dimensions (W x H x D): 230 x 324 x 224 mm (91/8 x 127/8 x 87/8 in.)
- Weight: 3.8 kg (8 lbs 6 oz)
Front Speakers (SX-WNSZ800):
- Speaker system: 3 way, Built-in subwoofer (magnetic shielded type)
- Speaker units: Subwoofer – 160 mm cone type, Full range – 100 mm cone type, Super tweeter – 20 mm ceramic type
- Impedance: 6 ohms
- Dimensions (W x H x D): 230 x 324 x 257 mm
- Weight: 4.8 kg
Satellite Speakers (SX-S85):
- Speaker system: Full range (magnetic shielded type)
- Speaker units: 80 mm cone type
- Impedance: 8 ohms
- Sensitivity: 87 dB/W/m
- Dimensions (W x H x D): 100 x 325 x 95 mm (4 x 127/8 x 33/4 in.) (with pedestal), 100 x 186 x 84 mm (4 x 73/8 x 33/8 in.) (without pedestal)
- Weight: 0.6 kg (1 lbs 5 oz)
General:
- Power requirements: 120 V AC, 60 Hz, 120 V/220 – 230 V/240 V AC (Switchable), 50 Hz/60 Hz
- Power consumption: 140 W, 180 W
- Power consumption in standby mode: With ECO mode on – 0.6 W, With ECO mode off – 24 W, 26 W
- Dimensions (W x H x D): 260 x 326 x 345 mm

Product Usage Instructions

Tuner
The tuner allows you to listen to FM and AM radio stations.

Follow these steps to use the tuner:

Connect the FM antenna terminals to a suitable FM antenna.
To tune to an FM station, turn the tuner knob or use the remote control to select the desired frequency.
To tune to an AM station, turn the tuner knob or use the remote control to select the desired frequency.

Main Amplifier
The main amplifier is responsible for powering the main speakers. Follow these steps to use the main amplifier:

Connect the main speakers to the main amplifier’s output terminals.
Connect audio sources to the main amplifier’s input terminals (e.g., VIDEO/AUX, MIC).
Adjust the volume using the volume control knob or the remote control.

Satellite Amplifier
The satellite amplifier is responsible for powering the satellite speakers. Follow these steps to use the satellite amplifier:

Connect the satellite speakers to the satellite amplifier’s output terminals.
Connect audio sources to the satellite amplifier’s input terminals (e.g., VIDEO/AUX, MIC).
Adjust the volume using the volume control knob or the remote control.

Cassette Deck
The cassette deck allows you to play and record cassette tapes.

Follow these steps to use the cassette deck:

Insert a cassette tape into the desired deck (DECK 1 or DECK 2).
To play a cassette tape, press the play button on the corresponding deck.
To record from an audio source, connect the source to the cassette deck’s input terminals and press the record button on the corresponding deck.
To stop playback or recording, press the stop button on the corresponding deck.

CD Player
The CD player allows you to play audio CDs. Follow these steps to use the CD player:

Press the open/close button to open the CD tray.
Place an audio CD on the tray and close it.
Press the play button to start playback.
Use the skip buttons or the remote control to navigate between tracks.
To stop playback, press the stop button.

Front Speakers
The front speakers provide audio output for the system. Follow these steps to use the front speakers:

Connect the front speakers to the corresponding speaker terminals on the main amplifier or satellite amplifier.
Ensure the impedance of the front speakers is 6 ohms or more.
Position the front speakers in the desired location for optimal sound.

Satellite Speakers
The satellite speakers provide additional audio output for the system. Follow these steps to use the satellite speakers:

Connect the satellite speakers to the corresponding speaker terminals on the satellite amplifier.
Ensure the impedance of the satellite speakers is 8 ohms or more.
Position the satellite speakers in the desired location for optimal sound.

FAQ

Q: Can I use the system with a different power supply voltage?
A: Yes, the system supports different power supply voltages. Make sure to switch the voltage setting accordingly.
Q: How do I switch on the ECO mode?
A: To switch on the ECO mode, refer to the system’s settings menu or check the user manual for specific instructions.
Q: Can I connect external devices to the system?
A: Yes, you can connect external devices such

NSX-AJ800 NSX-SZ800

SERVICE MANUAL
COMPACT DISC STEREO SYSTEM

BASIC CD MECHANISM : BZG-5 ZD3N1M BASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM/ 6ZM-3 PR4NM

SYSTEM| CD CASSEIVER| TAPE MECHANISM| FRONT SPEAKER| SATELLITE SPEAKER| REMOTE CONTROLLER
---|---|---|---|---|---
NSX–AJ800| CX–NAJ800| 6ZM–3 PR4NM| SX–NAJ801| SX–S85| RC–BAS01
NSX–SZ800| CX–NSZ800| 2ZM–3MK2 PR4NM| SX–WNSZ800

This Service Manual is the “Revision Publishing” and replace “Simple Manual” NSX-AJ800/SZ800<U,LH>, (S/M Code No. 09-012-443-5T1).
If requiring information about the CD mechanism, see Service Manual of BZG-5 (S/M Code No. 09-00C-353-3N2).

SPECIFICATIONS

TUNER
- FM tuning range: 87.5 MHz to 108 MHz
- FM usable Sensitivity(IHF):13.2 dBf
- FM antenna terminals: 75 ohms (unbalanced)
- AM tuning range: 530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1602 kHz (9 kHz step)
- AM usable sensitivity: 350 V/m
- AM antenna: Loop antenna
AMPLIFIER
- Main amplifier

STAELLITE SPEAKERS: 8 ohms or more

PHONES: 32 ohms or more

CASSETTE DECK

Track format: 4 tracks, 2 channels stereo

Frequency response: 50 Hz – 15 kHz

Recording system: AC bias

Heads: DECK 1: playback x 1

DECK 2: recording/playback x 1, erase x 1

CASSETTE DECK

Track format: 4 tracks, 2 channels stereo
Frequency response: CrO2 tape: 50 Hz – 15000 Hz
Normal tape: 50 Hz – 15000 Hz
Recording system: AC bias
Heads: DECK 1: playback x 1
DECK 2: recording/playback x 1, erase x 1

CD PLAYER

Laser: Semiconductor laser (= 780 nm)
D/A converter: 1 bit dual
Signal-to-noise ratio: 85 dB (1 kHz, 0 dB)
Harmonic distortion: 0.05 % (1 kHz, 0 dB)

FRONT SPEAKERS SX-NAJ801 ( only for NSX-AJ800)

Speaker system: 3 way, bass reflex (magnetic shielded)
Speaker units: Woofer: 160 mm (63/8 in.) cone
Tweeter: 60 mm (23/8 in.) cone
Super tweeter: 20 mm (13/16 in.) ceramic
Impedance: 6 ohms
Dimensions (W x H x D): 230 x 324 x 224 mm ( 91/8 x 127/8 x 87/8 in.)
Weight: 3.8 kg (8 lbs 6 oz)

FRONT SPEAKERS SX-WNSZ800 ( only for NSX-SZ800)

Speaker system: 3 way, Built-in subwoofer (magnetic shielded type)
Speaker units: Subwoofer: 160 mm cone type
Full range: 100 mm cone type
Super tweeter: 20 mm ceramic type
Impedance: 6 ohms
Dimensions (W x H x D): 230 x 324 x 257 mm
Weight: 4.8 kg

SATELLITE SPEAKERS SX-S85

Speaker system: Full range (magnetic shielded type)
Speaker units: 80 mm cone type
Impedance: 8 ohms
Sensitivity: 87 dB/W/m
Dimensions (W x H x D): 100 x 325 x 95 mm ( 4 x 127/8 x 33/4 in.)(with pedestal) 100 x 186 x 84 mm ( 4 x 73/8 x 33/8 in.)(without pedestal)
Weight: 0.6 kg (1 lbs 5 oz)

GENERAL

Power requirements: 120 V AC, 60 Hz 120 V/220 – 230 V/240 V AC (Switchable), 50 Hz/60 Hz

Power consumption: 140 W, 180 W

Power consumption in standby mode: With ECO mode on: 0.6 W

With ECO mode off: 24 W, 26 W

Dimensions ( W x H x D): 260 x 326 x 345 mm (101/4 x 127/8 x 135/8 in.)

Weight: 8.4 kg (18 lbs 8 oz), 8.9 kg

Design and specifications are subject to change without notice.
The word “BBE”and the “BBE symbol” are trademarks of BBE Sound, Inc.
Under license from BBE Sound,Inc.

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing.

WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.

Caution: Invisible laser radiation when open and interlocks defeated avoid exposure to beam.

Precaution to replace Optical block (KSS-213F)

Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode.
After the connection, remove solder shown in right figure.

CAUTION
Use of controls or adjustments or performance of procedures other than those specified herin may result in hazardous radiation exposure.

CLASS 1 LASER PRODUCT

NOTE ON BEFORE STARTING REPAIR

Forced discharge of electrolytic capacitor of power supply block

When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect can occur.
In order to prevent the secondary trouble, perform the following measures before starting repair work.

Discharge procedure

Remove the AC power cord.
Connect a discharging resistor at an end of lead wire that has clips at both ends. Connect the other end of the lead wire to metal chassis.
Contact the other end of the discharging resistor to the positive (+) side (+VH) of C101. (For two seconds)
Contact the same end of the discharging resistor as step 3 to the negative (-) side (-VH) of C102 in the same way.(For two seconds)
Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscilloscope.

Select a discharging resistor referring to the following table.

Charging voltage (V) (C101, 102)| Discharging resistor (W)| Rated power (W)| Parts number
---|---|---|---
25-48| 100| 3| 87-A00-247-090
49-140| 220| 5| 87-A00-232-090

Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the reference numbers of the charging capacitors on schematic diagram before starting the discharging work.

Check items before exchanging the MICROCOMPUTER
Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUTER is surely defective.

Regarding the HOLD terminal of the MICROCOMPUTER
When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly. When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD terminal before exchange.
When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any abnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.
Good or no good judgement of the MICROCOMPUTER
Turn on the AC main power.
Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not. 33333 When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the MICROCOMPUTER is judged to be good. $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $4$$
In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.
Regarding reset
There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.
When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to exchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or no good of the MICROCOMPUTER.
Remove the AC power cord. $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $5$$
Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.
Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER is good.
Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.
Confirmation of soldering state of MICROCOMPUTER
Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.

DISASSEMBLY INSTRUCTIONS

How to Remove PANEL, MOVE ASSY Remove the outside ornamental parts, CD mechanism, CABI. FR before starting the following procedure.
Remove the FFC (1) and the three screws (2). Then remove HLDR, MECHA ASSY.
Remove the eight screws (1) and remove the PWB. FR (2).
Remove the three FFC (1), (2), (3).
Remove the two screws (1) and remove the HLDR, PANEL 2 (2). Then remove PANEL, MOVE 2 ASSY (3).
Remove the screw (1) and the HLDR, PANEL (2). Then remove PANEL, MOVE 1 ASSY (3).
How to Disassemble PANEL, MOVE 1 ASSY
Insert a screwdriver tip into the clearance on top of the PANEL, MOVE 1 ASSY (1) and remove the PANEL, MOVE 1 F (3).
Remove the claw (1) and remove the PWB, M-OPE PANEL (2).
Note when Re-installing the HLDR, MECHA ASSY
Re-installing the HLDR, MECHA ASSY after the PANEL, MOVE is closed.
Re-install it in a way that the LEVER SW of the HLDR, MECHA ASSY is located beneath the PANEL, MOVE 1 ASSY. $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $13$$

ELECTRICAL MAIN PARTS LIST

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $14$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $15$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $16$$

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $17$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $18$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $19$$

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $20$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $21$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $22$$

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $23$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $24$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $25$$

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $26$$

TRANSISTOR ILLUSTRATION

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $27$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $28$$

WIRING – 1 (MAIN / FAN)

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $29$$

SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2)

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $30$$

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $31$$

SCHEMATIC DIAGRAM – 3 (FAN) $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $32$$ WIRING – 2 (FRONT / MOTOR/BOX SW ) $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $33$$ WIRING – 3 (M – OP – PANEL)

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $34$$ WIRING – 4 (S – OP – PANEL) $aiwa-NSX-AJ800-Compact- Disc-Stereo-System-01 $35$$ SCHEMATIC DIAGRAM – 4 (FRONT) $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $36$$ WIRING – 5 (PANORAMA AMP) $aiwa- NSX-AJ800-Compact-Disc-Stereo-System-01 $37$$ SCHEMATIC DIAGRAM – 5 (PANORAMA AMP) $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $38$$ WIRING – 6 (PT : U) SCHEMATIC DIAGRAM – 6 (PT: U) $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $40$$ WIRING – 7 (PT: LH) $aiwa-NSX- AJ800-Compact-Disc-Stereo-System-01 $41$$ SCHEMATIC DIAGRAM – 7 (PT: LH) $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $42$$ WIRING -8 (DECK: U) WIRING -9 (DECK: LH) $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $44$$ IC BLOCK DIAGRAM

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $48$$

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $49$$

FL (BJ815GNK) GRID ASSIGNMENT AND ANODE CONNECTION GRID ASSIGNMENT

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $50$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $51$$

ANODE CONNECTION

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $52$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $53$$

IC DESCRIPTION

IC, LC866560W-5V19

Pin No.	Pin Name	I/O	Description
1	O-C-SHIFT	O	Clock shift output for micro computer when tuner receiving

broadcast.
2| O-POWER| O| Power control ON/OFF output.
3| O-2PB| O| DECK 2 / DECK 1 play output.
4| O-PANE-LED| O| Moving PANEL LED ON/OFF output (Not used).
5| O-DATA| O| Data output.
6| O-RMT| O| REC MUTE output.
7| O-BIAS| O| Bias ON/OFF output.
8| O-MUTE| O| System MUTE ON/OFF.
9| O-TU-ON/ O-STB-SHIFT-VCD| O| Tuner power supply ON/OFF output/MICON standby shift VCD output.
10| O-PANO-LED| O| Panorama LED ON/OFF output.
11| HP-MUTE| I| Head phone jack detection. “L” : MUTE
12| RESET| I| Reset input for MICON.
13| I-DISH| I| CD turnable photo sensor input.
14| I-SUBQ| I| SUB-Q data input.
15| VSS1| –| Connected to ground.
16| CF1| I| Oscillator circuit input (5.76 MHz).
17| CF2| O| Oscillator circuit output (5.76 MHz).
18| VDD1| –| Digital power supply pin.
19| I-HOLD| I| Power failure detected input.
20| I-KEY1| I| Key A/D input 1.
21| I-KEY2| I| Key A/D input 2.
22| I-KEY3| I| Key A/D input 3.
23| I-PANEL-SW| I| Panel OPEN/CLOSE detect switch AD input.
24| I-JOG| I| Dial jog rotary encoder input.
25| I-SPEANA| I| Spectrum analyser level detection.
26| I-CDSW| I| CD mehca switch input.
27| I-WRQ| I| CD WRQ input.
28| I-TM-BASE| I| Reference clock input for timer switch.
29| I-RMC| I| System remote control signal input. “L” : ACTIVE
30 ~ 41| G12 ~ G1| O| FL grid G12 ~ G1 output.
42 ~ 45| P35 ~ P32| O| FL segment P35 ~ P32 output.
46| VDD3| –| Digital power supply pin.
47| P31| O| FL segment P31 output.
48| SPEANA-A/P30| O| Spectrum analyser BPF switching control A output/FL segment P30 output.
49| SPEANA-B/P29| O| Spectrum analyser BPF switching control B output/FL segment P29 output.
50| SPEANA-C/P28| O| Spectrum analyser BPF switching control C output/FL segment P28 output.
51| VP| –| Power supply for FL.
52 ~ 53| P27 ~ P26| O| FL segment P27 ~ P26 output.
54| ECO-OFF/P25| I/O| ECO-OFF data input/FL segment P25 output.
55| LW/P24| I/O| LW diode input (Not used)/FL segment P24 output.
Pin No.| Pin Name| I/O| Description
---|---|---|---
56| KARAOKE/P23| I/O| Karaoke input to diode/FL segment P23 output.
57| DEMO/P22| I/O| Demo (on the stop) diode input (Not used)/FL segment P22 output.
58| DOLBY/P21| I/O| DECK DOLBYdiode input (Not used)/FL segment P21 output.
59| AM-ST/P20| I/O| AM-ST select diode (Not used)/FL segment P20 output.
60| SOFT/P19| I/O| DECK SOFT diode input (Not used)/FL segment P19 output.
61| SW/P18| I/O| SW diode input (Not used)/FL segment P18 output.
62| FM1/P17| I/O| FM1 diode input (Not used)/FL segment P17 output.
63| PANO/P16| I/O| Panorama diode input/FL segment P16 output.
64| AM-9K/10K/P15| I/O| AM-9K/10Kselect diode input/FL segment P15 output.
65| CASINO/P14| I/O| Initial casino diode input/FL segment P14 output.
66| REA/P13| I/O| DECK2 side A recordable switch. “L” : REC/FL segment P13 output.
67| CST1/P12| I/O| DECK1 cassette detection switch data input. “L” : ON/FL segment P12 output.
68| CAM1/P11| I/O| DECK1 CAM STOP switch data input. “L” : ON/FL segment P11 output.
69| AUTO2/P10| I/O| DECK2 AUTO STOP switch data input/FL segment P10 output.
70| AUTO1/P9| I/O| DECK1 AUTO STOP switch data input/FL segment P9 output.
71| CAM2/P8| I/O| DECK2 CAM switch data input. “L” : ON/FL segment P8 output.
72| VDD4| –| Digital power supply pin.
73| REB/P7| I/O| DECK2 side B recordable switch. “L” : REC/FL segment P7 output.
74| CST2/P6| I/O| DECK2 cassette detection switch data input. “L” : ON/FL segment P6 output.
75| M-GEQ/P5| I/O| Manual GEQ diode input/FL segment P5 output.
76| R+1/P4| I/O| DECK R+1 diode input/FL segment P4 output.
77| 1+1/P3| I/O| DECK 1+1 diode input (Not used)/FL segment P3 output.
78| P-CL/P2| I/O| (Not used)/FL segment P2 output.
79| P-OP/P1| I/O| (Not used)/FL segment P1 output.
80| BOX1| I| Cassette BOX1 open/close detect input.
81| BOX2| I| Cassette BOX1 open/close detect input.
82| I-VOL2| I| Volume rotary encoder input 2.
83| I-VOL1| I| Volume rotary encoder input 1.
84| I-IFC| I| Tuner IF count input.
85| O-MP-CL| O| Moving panel close output.
86| O-MP-OP| O| Moving panel open output.
87| O-PLL CE| O| Tuner PLL IC chip enable output.
88| O-KSCAN| O| Initial scan output.
89| VSS2| –| Connected to ground.
90| VDD2| –| Digital power supply pin.
91| STBY-LED| O| Standby LED ON/OFF output. “L” : ON
92| O-MOTOR| O| Cassette deck motor control output.
93| O-SOL1| O| DECK1 solenoid output.
94| O-SOL2| O| DECK2 solenoid output.
95| O-CD-DATA| O| CD IC control data output.
96| O-CD-CLK| O| CD IC control clock output.
Pin No.| Pin Name| I/O| Description
---|---|---|---
97| O-CD-CE| O| CD data chip enable output.
98| I-STEREO/I-DRF| I| Tuner stereo detect input/RF (radio frequency) detect.
99| O-P-DATA| O| Panorama IC data output.
100| O-CLK| O| PLL IC clock output.

ADJUSTMENT – 1 <TUNER / FRONT> < TUNER SECTION >

Clock Frequency Check
Settings : • Test point : TP2 (CLK)
Method : Set to AM 1710 kHz and check that the test point is 2160 kHz ± 45 Hz.
AM VT Check
Settings : • Test point : TP1 (VT)
Method : Set to AM 1710 kHz and check that the test point is less than 8.5 V. Then set to AM 530 kHz and check that the test point is more than 0.6 V.
AM Tracking Adjustment
Settings :
Test point : TP8 (Lch), TP9 (Rch)
Adjustment location : L951(1/3)
Method : Set to AM 1000 kHz and adjust L951(1/3) so that the test point becomes maximum.
AM IF Adjustment
Settings : Test point : TP8 (Lch), TP9 (Rch)
Adjustment location : L802 …………………………………………… 450 kHz
FM VT Adjustment
Settings : Test point : TP1 (VT)
Adjustment location: L906
Method : Set to FM 87.5 MHz check that the test point is more than 0.4 V. Then set to FM 108.0 MHz and adjust L906 so that the test point becomes 7.0 V ± 0.1 V.
FM Tracking Adjustment
Settings : Test point : TP8 (Lch), TP9 (Rch)
Adjustment location: L903
Method : Set to FM 87.5 MHz and adjust L903 so that the test point is less than 9 dBμV.
DC Balance / Mono Distortion Adjustment
Settings : • Test point : TP3, TP4 (DC Balance)
TP8 (LCH), TP9 (RCH) (Mono Distortion)
Adjustment location : L801
Input level : 60 dBμV
Method : Set to FM 98.0 MHz and adjust L801 so that the voltage between TP3 and TP4 becomes 0 V ± 500 mV with minimum distortion.
Output Level Check
Settings : Test point : TP8 (Lch), TP9 (Rch)
Input level : 74 dBμV
Method : Set to AM 1000 kHz and check that the test point is 40 mV ± 3 dB.
Settings : Test point : TP8 (Lch), TP9 (Rch)
• Input level : 60 dBμV
Method : Set to FM 98.0 MHz and check that the test point is 150 mV ± 3 dB.
FM Separation Check
Settings : Test point : TP8 (Lch), TP9 (Rch)
Input level : 60 dBμV
Method : Set to FM 98.0 MHz and check that the test point is more than 25 dB. < FRONT SECTION >
μ-CON OSC Adjustment
Settings : • Test point : TP5 (KEY-SCAN)
TP6 (GND) • Adjustment location : L151
Method : Insert AC plug while pressing of “POWER” key and “TUNER” function key. Connect a frequency counter across TP5 and TP6. Then adjust L501 so that the test point becomes 141.67 Hz ± 0.14 Hz. [ Manual Reset ]

Make up for RESET after adjustment. * Reset is to press “POWER” key while pressing of “CLEAR (STOP)” key.

ADJUSTMENT – 2 < DECK SECTION >

Tape Speed Adjustment (DECK 2)
Settings : • Test tape : TTA–100
Test point : TP8 (Lch), TP9 (Rch)
Adjustment location : SFR1
Method : Play back the test tape and adjust SFR1 so that the test point becomes 3000 Hz ± 5 Hz (FWD) and FWD SPEED ± 45Hz (REV) with respect to forward speed.
Head Azimuth Adjustment (DECK 1, DECK 2)
Settings : • Test tape : TTA–330
Test point : TP8 (Lch), TP9 (Rch)
Adjustment location : Head azimuth adjustment screw
Method : Play back (FWD) the 8 kHz signal of the test tape and adjust screw so that the output becomes maximum.
Next, perform on REV PLAY mode.
PB Frequency Response Check (DECK 1, DECK 2)
Settings : Test tape : TTA–330
Test point : TP8 (Lch), TP9 (Rch)
Method : Play back the 315 Hz and 10 kHz signals of the test tape and check that the output ratio of the 10 kHz signal with respect to that of the 315 Hz signal is 0 dB ± 5 dB.
PB Sensitivity Check (DECK 1, DECK 2)
Settings : Test tape : TTA–200
Test point : TP8 (Lch), TP9 (Rch)
Method : Play back the test tape and check that the output level of the test point is 110 mV ± 3 dB.
REC/PB Frequency Response Check (DECK 2)
Settings : Test tape : TTA–602
Test point : TP8 (Lch), TP9 (Rch)
Input signal : 8 kHz/1 kHz (-26 dB)
Adjustment location: SFR451 (Lch) SFR452 (Rch)
Method : Apply a 1 kHz signal and REC mode. Then adjust OSC attenuator so that the output level at TP8, TP9 becomes 10 mV. Record and play back the 1 kHz and 8 kHz signals and adjust SFRs so that the output of 8 kHz signals becomes 0 dB ± 1 dB with respect to that of the 1 kHz signal.
REC/PB Frequency Response Check (DECK 2)
Settings : Test tape : TTA–602
Test point : TP8 (Lch), TP9 (Rch)
Input signal : 8 kHz/1 kHz (-26 dB)
Method : Apply a 1 kHz signal and REC mode. Then adjust OSC attenuator so that the output level at TP8, TP9 becomes 10 mV. Record and play back the 1 kHz signals and check that the output is 0 dB ± 2.5 dB.
REC/PB Sensitivity Check (DECK 2)
Settings : Test tape : TTA–602
Test point : TP8 (Lch), TP9 (Rch)
Input signal : 1 kHz (0VU / -8.0 dB)
Method : Apply a 1 kHz signal and REC mode. Then adjust OSC attenuator so that the output level at TP8, TP9 becomes 80 mV. Record and play back the 1 kHz signals and check that the output is –1 dB ± 3.5 dB.

CD TEST MODE

How to Start the CD Test Mode
While pressing the FUNCTION button, insert the AC plug to the power outlet.
When the test mode is started, the message [CD TEST] is displayed.
How to Exit the CD Test Mode
Press the POWER button or disconnect the AC plug.
- When any key other than PLAY is pressed during play mode, the machine exits the test mode.
Function Descriptions and Application of the CD Test Mode

aiwa-NSX-AJ800-Compact-Disc-Stereo-System-75

The driver IC heats up and the protection circuit starts working when the focus search is continued for 10 minutes or longer. There can be a case that operations cannot be performed correctly. In such a case, turn off the main power. After cooling down the machine, restart the machine.
Be careful not to damage the gear because the sled motor rotates while the FF or RWD button is being pressed even if the pick-up is located in the innermost track or the outermost track.

MECHANICAL EXPLODED VIEW 1 / 1

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $54$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $55$$

MECHANICAL PARTS LIST 1 / 1 $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $56$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $57$$

COLOR NAME TABLE

Bas c color symbol| Color| Bas c color symbol| Color| Bas c color symbol| Color
---|---|---|---|---|---
B| Black| C| Cream| O| Orange
G| Green| H| Gray| | Bl e
T| Transparent Bl e| N| Gold| P| P nk
R| Red| S| S lver| ST| T tan S lver
T| Brown| V| V olet| W| Wh te
WT| Transparent Wh te| Y| Yellow| YT| Transparent Yellow
M| Metall c Bl e| | ght Bl e| GT| Transparent Green
O| Oark Bl e| OT| Transparent Orange| GM| Metall c Green
YM| Metall c Yellow| OM| Metall c Orange| PT| Transparent P nk
| a Bl e| G| ght Green| HT| Transparent Gray

TAPE MECHANISM EXPLODED VIEW 1 / 1

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $58$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $59$$

TAPE MECHANISM PARTS LIST 1 / 1

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $60$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $61$$

TAPE MECHANISM EXPLODED VIEW 1 / 1

$aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $62$$ $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $63$$

TAPE MECHANISM PARTS LIST 1 / 1 $aiwa-NSX-AJ800-Compact-Disc-Stereo- System-01 $64$$

GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE)

Type.1
Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Remove the screws of each speaker unit and then remove the speaker units.
Type.2
Remove the grill frame and four pieces of rubber caps by pulling out with a flat-bladed screwdriver. Remove the screws from hole where installed rubber caps. Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Re-move the screws of each speaker unit and then remove the speaker units.
Type.3
Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Turn the speaker unit to counter-clockwise direction while inserting a flat-bladed screwdriver into one of the hollows around speaker unit, and then remove the speaker unit. After replacing the speaker unit, install it turning to clockwise direction until “click” sound comes out.
Type.4 $aiwa-NSX-AJ800-Compact-Disc-Stereo-System-01 $68$$

How to Remove the PANEL, FR

Insert the ( ) flat head screwdriver tip into the gap between the PANEL, FR and the PANEL, SPKR. Tap the head of the ( ) flat head screwdriver with the plastic hammer head, and create the clearance as shown in Fig-1.
Insert the cut chisel in the clearance, and tap the head of the cut chisel with plastic hammer as shown in Fig-2, to remove the PANEL, FR.
Place the speaker horizontally. Tap head of the cut chisel with plastic hammer as shown in Fig-3, and remove the PANEL, FR completely.

How to Attach the PANEL, FR
Attach the PANEL, FR to the PANEL, SPKR. Tap the four corners of the PANEL, FR with the plastic hammer to fit the PANEL, FR into the PANEL, SPKR completely.

SPEAKER PARTS LIST (SX-NAJ801 <YUSC / YUSC9>) SPEAKER PARTS LIST (SX- WNSZ800 ) SPEAKER PARTS LIST (SX-S85) ACCESSORIES / PACKAGE LIST

2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111
Printed in Singapore

References

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