Ohsung Electronics B905A RF Remote Control Unit User Manual

: June 6, 2024
: Ohsung Electronics

Table of Contents

Ohsung Electronics B905A RF Remote Control Unit
Mechanical Requirements
Electrical Requirements
Software Requirements
Environmental Tests
Certification
Federal Communication Commission
Appendix
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Download This Manual (PDF format)

Ohsung Electronics B905A RF Remote Control Unit

Mechanical Requirements

Design- Dimensions : 170.2 x 43.4 x 17.8mm

BOTTOM CASE BATTERY COVER	MATERIAL	XG 569C
MATERIAL COLOR	BLACK

RUBBER BUTTON

Address : #181 GONG DAN-DONG, GUMI, GYEONG BUK, KOREA
TEL : 82-54-468-7063 / FAX : 82-54-461-8368
http://www.ohsungec.com/

Batch Number

Adhesive label is attached at the inside part of the battery cover Ohsung
Electronics B905A RF Remote Control Unit fig-2

Slip

Packing

Packing Process
PE bag dimensions : 83 x 286 mm (LDPE 0.05t)
Quantity Per Box: 140pcs
Box dimensions : W 600 x D 400 x H 240 mm

Pallet definition

Pallet dimension : W 1200 x D 800 x H 170 mm
Full pallet dimension : W 1200 x D 800 x H 1850 mm
Quantity per pallet : 3,920pcs (4 boxes / layer – 7 layers)

Electrical Requirements

Electrical Characteristic

Parameter	Condition	Spec	Unit
Frequency Range	Bluetooth Low Energy Specification	2.402 ~ 2.480

[GHz]
Channel| 40| [Num]
RF Power| 8| [dBm]
Test channel| ****

TC-3000

(RF measuring instrument)

| 19| [Num]

RF Power

| PAvg| -20~+10| [dBm]
PMax| +8| [dBm]
Pmin| -20| [dBm]

Modulation Characteristics

| ∆f1 avg| 225~275| [KHz]
∆f2 avg| ≥ 185| [KHz]
∆f2/∆f1| 0.8|
∆f2min| ≥ 92.5| [KHz]
∆f2rate| ≥ 99| [%]
Carrier Frequency Offset and Drift| fTx-fn| ≤ 150| [KHz]
∆f0-fn| ≤ 50| [KHz]
f1-f0| ≤ 20| [KHz]
∆fn-f(n-5)| ≤ 20| [KHz]
Operating Voltage| RF (Bluetooth)| 2.2~3.6| [V]
LVI Voltage| Low Voltage Indicate| 2.1±0.1V| [V]
Operating current (IR)| Power: 3V| ≤ 50| [mA]
Operating current (RF KEY)| ****

Power: 3V

Non-directional distance

| ≤ 10| [mA]
Operating current (RF+Voice)| ≤ 20| [mA]
Leakage current| 10| [㎂]
RF range (distance)| ≥10| [m]

IR Range

| Direct| ≥12| [m]
Horizontal| 7 (±15°)| [m]

Software Requirements

Bluetooth 5.0 LE identification

a) Device Name: FUNCTION101 RC
b) Vendor ID: 0x0957
c) Product ID: 0x1000

Pairing mode

a) Before RCU paired or after Factory Reset, RCU works in IR.
b) Press [OK] + [MUTE] keys for longer than 4 seconds.
c) After 4 seconds, the LED turns ON so that to confirm the remote has entered into pairing mode.
d) After RCU has entered pairing mode, RCU can send the IR signal.
e) If pairing is successfully made, the LED blinking 2 times and goes OFF. The remote starts working in Bluetooth.
f) If pairing is not successfully made for 60 seconds, the LED blinking 5 times quickly and goes OFF.

Re-pairing

a) After RCU paired, Press [OK] + [MUTE] keys for longer than 4 seconds.
b) After 4 seconds, RCU erases existing pairing table, and the LED turns ON so that to confirm the remote has entered into pairing mode.
c) After that, it is the same as in Section 3.2

Un-pairing

a) After RCU paired, Press [MUTE] + [STOP] keys for longer than 4 seconds.
b) After 4 seconds, the LED blinking 2 times and goes OFF. RCU deleting the existing pairing table and works in IR.

Initial default set-up

a) STB ——————- #0001 (Only Apple TV)
b) TV & Soundbar ——————- #0505 (TV)

TV & Soundbar Key

a) TV & Soundbar Key: Power, Vol+, Vol-, Mute
b) This key acts as the key of the last configured device.

Number Call

a) Press the [MENU] + [OK] key for more than 3 seconds to enter the set-up mode. Then the LED will turn on.
b) If any key press is not followed for next 20 seconds, LED will be switched OFF and get out of set-up mode automatically.
c) If [Rewind] key is pressed, LED will blink to indicate the set-up number of TV.
d) If [Fast Forward] key is pressed, LED will blink to indicate the set-up number of Soundbar. If TV0851 is set up, 10 time blink Pause 8 tims blinks_ Pause_5 times blinksPause one times blinks. It should be counted correctly when LED blinks. (if the number is “0”, LED will blink 10 times)
e) Then LED will be switched OFF and get out of set-up mode automatically.

TV Set-up

Brands Auto Search

– Auto search method for 16 brands. The following Brands Auto Search shall be supported:

Number	Brand	Number	Brand	Number	Brand
1	Samsung	7	Brandt	13	Sanyo
2	LG	8	JVC	14	Pioneer
3	Sony	9	Sharp	15	Insignia
4	Philips	10	Thomson	16	Hisense
5	Panasonic	11	VIZIO
6	TCL	12	Toshiba

a) Press the [MENU] + [OK] key for more than 3 seconds to enter the set-up mode. Then the LED will turn on.
b) If any key press is not followed for next 20 seconds, LED will be switched OFF and get out of set-up mode automatically.
c) If an user presses [P+] key, the remote control will send [VOL+] code of next TV code on every [P+] key press.
d) If an user presses and holds [P+] key, the remote control will send [VOL+] code of next TV code every 2 seconds.
e) If the end of the DB is reached, the LED will blink 3 times.
If the [P+]key is pressed and held, the remote control will repeat [VOL+] commands another cycle.
f) In set-up mode, an user can test the [VOL+], [VOL-], and [Mute] keys.
g) If OK key is pressed, the changed setting value is saved and the remote control will exit the set up mode. The remote control will blink the LED three times to let user know that the remote control was exiting set-up mode.

All Brands Auto Search

Auto search method for All Brands.

a) Press the [MENU] + [OK] key for more than 3 seconds to enter the set-up mode. Then the LED will turn on.
b) If any key press is not followed for next 20 seconds, LED will be switched OFF and get out of set-up mode automatically.
c) If an user presses [P-] key, the remote control will send [VOL+] code of the next TV code set on every [P-] key press.
d) If an user presses and holds [P-] key, the remote control will send [VOL+] code of the next TV code set every 2 seconds.
e) If the end of the DB is reached, the LED will blink 3 times.
If the [P-]key is pressed and held, the remote control will repeat [VOL+] commands another cycle.
f) In set-up mode, user can test the [VOL+], [VOL-], and [Mute] keys.
g) If OK key is pressed, the changed setting value is saved and the remote control exits the set up mode. Then the remote control will blink the LED three times to let user know that remote control was exiting set-up mode.

Soundbar Set-up

Brands Auto Search

– Auto search method for 17 brands. The following Brands Auto Search shall be supported:

Number	Brand	Number	Brand	Number	Brand	Number	Brand
1	Logitech	6	Bose	11	Vizio	16	Nakamichi
2	Samsung	7	JBL	12	Pioneer	17	Polk Audio
3	LG	8	Harmann Kardon	13	Denon
4	Sony	9	Arcam	14	Onkyo
5	Philips	10	Jamo	15	Yamaha

a) Press the [MENU] + [OK] key for more than 3 seconds to enter the set-up mode. Then the LED will turn on.
b) If any key press is not followed for next 20 seconds, LED will be switched OFF and get out of set-up mode automatically.
c) If an user presses [UP] key, the remote control will send [VOL+] code of next Sound Bar code on every [UP] key press.
d) If an user presses and holds [UP] key, the remote control will send [VOL+] code of next Soundbar code every 2 seconds.
e) If the end of the DB is reached, the LED will blink 3 times. If the [UP]key is pressed and held, the remote control will repeat [VOL+] commands another cycle.
f) In set-up mode, an user can test the [VOL+], [VOL-], and [Mute] keys.
g) If OK key is pressed, the changed setting value is saved and the remote control will exit the set up mode. The remote control will blink the LED three times to let user know that the remote control was exiting set-up mode.

All Brands Auto Search

– Auto search method for All Brands.

a) Press the [MENU] + [OK] key for more than 3 seconds to enter the set-up mode. Then the LED will turn on.
b) If any key press is not followed for next 20 seconds, LED will be switched OFF and get out of set-up mode automatically.
c) If an user presses [DOWN] key, the remote control will send [VOL+] code of the next Soundbar code set on every [DOWN] key press.
d) If an user presses and holds [DOWN] key, the remote control will send [VOL+] code of the next Soundbar code set every 2 seconds.
e) If the end of the DB is reached, the LED will blink 3 times.
If the [DOWN] key is pressed and held, the remote control will repeat [VOL+] commands another cycle.
f) In set-up mode, user can test the [VOL+], [VOL-], and [Mute] keys.
g) If OK key is pressed, the changed setting value is saved and the remote control exits the set up mode. Then the remote control will blink the LED three times to let user know that remote control was exiting set-up mode.

Factory Reset

a) Press [MENU] + [STOP] key for 3 seconds.
b) The Factory reset will be initialized as LED blinks 5 times.
c) Factory Reset initializes the TV settings.
d) RCU deleting the existing pairing table and works in IR.

Low Voltage Indicate

a) If the battery power reaches up to (2.0V±0.2V) and any key is pressed and released, LED will blink 10 times to indicate that the battery power is low.

IR Protocol (Apple IR Protocol)

a) This protocol uses the NEC Infrared remote control transmission format. Each packet in the NEC format contains up to 32 bits of binary data.
b) IR Carrier
- Carrier frequency = 38 kHz.
- Recommended duty cycle = 0.3 or 30%
c) Standard Packet
Bit Configuration
The following figure shows the 32 data bits in the NEC format and how they are partitioned in the Apple IR protocol. Each 16-bit data word is transmitted fully before the next word begins. Within each word, the least significant bit (LSB) is transmitted first.
d) Repeater Packet
e) Frame Interval

Key codes

Key codes is detailed in Table 1

KEY LABEL CHART

|

KEY NAME

|

FUNCTION

| Command Page ID| Command| HID
---|---|---|---|---|---
Short Key

( < 2sec )

| Long Key

( > 2sec )

| Usage

Page

| Usage

ID

| K1| Power| IR TV Code| N/A| N/A| | |
K1| Power| Apple TV| 0x5| –| 0x15| 0x0C| 0x0030
K2| Menu| Apple TV| 0xE| 0x1| | 0x0C| 0x0046
K3| D-PAD Up| Apple TV| 0x5| 0x1| | 0x0C| 0x0042
K4| D-PAD Left| Apple TV| 0x5| 0x3| | 0x0C| 0x0044
K5| OK (Select)| Apple TV| 0x5| 0x5| | 0x0C| 0x0041
K6| D-PAD Right| Apple TV| 0x5| 0x4| | 0x0C| 0x0045
K7| D-PAD Down| Apple TV| 0x5| 0x2| | 0x0C| 0x0043
K8| VOL +| IR TV Code| N/A| N/A| | |
K9| VOL –| IR TV Code| N/A| N/A| | |
K10| Mute| IR TV Code| N/A| N/A| | |
K11| P +| Apple TV| 0x5| 0x11| | TBD| TBD
K11| P+| Apple TV| 0x5| | 0x20| TBD| TBD
K12| P –| Apple TV| 0x5| 0x12| | TBD| TBD
K12| P-| Apple TV| 0x5| | 0x20*| TBD| TBD
K13| Skip Back| Apple TV| 0x5| 0x13| | 0x0C| 0x00C7
K14| Stop| Apple TV| 0x5| 0x18| | 0x0C| 0x00B7
K15| Skip Ahead| Apple TV| 0x5| 0x17| | 0x0C| 0x00C6
K16| Rewind| Apple TV| 0x5| 0xE| | 0x0C| 0x00B4
K17| Play/Pause| Apple TV| 0xE| 0x2F| | 0x0C| 0x00CD
K18| Fast Forward| Apple TV| 0x5| 0xD| | 0x0C| 0x00B3

Table 1: Code list
When [P-] Key is pressed more than 2 seconds, Remote send 0x20 Command 2 times.

Environmental Tests

Temperatures Conditions

a) Operating Temperature: 0°C ~ +50°C
b) Storage Temperature: -30°C ~ +60°C

Certification

Assesment of compliance of the product to the requirements relating to Electromagnetic Compatibility is based on the following standards:

– FCC Part 15 subpart C 15.247

Federal Communication Commission

Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Warning!
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
Note: The manufacturer is not responsible for any Radio or TV interference caused by unauthorized modifications to operate the equipment.

FCC Caution
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference
This device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the authority to operate equipment. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Federal Communication Commissions (FCC)
Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure condition without restriction.