LG SH5B User manual

SERVICE MANUAL
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS”
IN THIS MANUAL.
Internal Use Only
Wireless Sound Bar
JANUARY, 2016
MODEL: SH5B (SH5B, SPH5B-W)
MODEL: SH5B
(SH5B, SPH5B-W)
P/NO : AFN77195067

1-1
CONTENTS
SECTION 1 ........ GENERAL
SECTION 2 ........ CABINET & MAIN CHASSIS
SECTION 3 ........ ELECTRICAL
SECTION 4 ........ WIRELESS SUBWOOFER PART
SECTION 5 ........ REPLACEMENT PARTS LIST

1-2
SECTION 1
GENERAL
CONTENTS
ESD PRECAUTIONS......................................................................................................................................... 1-3
WIRELESS SUBWOOFER CONNECTION....................................................................................................... 1-4
HIDDEN KEY MODE ......................................................................................................................................... 1-5
MCS / EQ PROGRAM UPDATE GUIDE........................................................................................................... 1-6
SPECIFICATIONS ............................................................................................................................................. 1-7

1-3
ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated
circuits and some field-effect transistors and semiconductor chip components. The following techniques should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device, which should be removed for potential shock reasons
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface
such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
generate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD
devices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are
ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
protective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER
SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion
such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate
static electricity sufficient to damage an ESD device).
CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS
INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE
SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE
LITERATURE.

1-4
WIRELESS SUBWOOFER CONNECTION
LED indicator of wireless subwoofer
LED Color Status
Green
(Blink) The connection is trying.
Green The connection is completed.
Red
The wireless subwoofer
is in standby mode
or the connection is failed.
Red/Green
(Blink alternately)
The wireless subwoofer
connection is initialized.
Off
(No display)
The power cord of wireless
subwoofer is disconnected.
Setting up the wireless subwoofer
for the first time
1. Connect the power cord to the subwoofer and plug
the power cord into a power outlet.
2. Turn on the main unit : The sound bar and wireless
subwoofer will be automatically connected.
-
Green LED on the rear of wireless subwoofer turns on.
Manually pairing wireless subwoofer
When your connection is not completed, you can
check red LED or blinking green LED on the wireless
subwoofer and the wireless subwoofer does not make
sound. To solve the problem, follow the steps below.
1. Adjust volume level of the main unit to minimum by
pressing VOL – button repeatedly.
- ”MIN” appears on the display window.
2. Press and hold (Mute) on the remote control for
about 3 seconds.
-
“SUB-WF RESET” appears on the display window.
3. Press and hold Pairing on the back of the wireless
subwoofer for more than 5 seconds.
- The LED of the wireless subwoofer lights up alternately
in red and green.
4. Disconnect and reconnect power cord of the main
unit and the wireless subwoofer.
5. Turn on the main unit. : The sound bar and wireless
subwoofer will be automatically connected.
- Green LED on the rear of wireless subwoofer
turns on.
Note :
•It takes a few seconds (and may take longer) for the
main unit and the subwoofer to communicate with
each other and make sounds.
•The closer the main unit and the subwoofer, the
better sound quality. It is recommended to install the
main unit and the subwoofer as close as possible
and avoid the cases below.
- There is a obstacle between the main unit and the
subwoofer.
- There is a device using same frequency with this
wireless connection such as a medical equipment,
a microwave or a wireless LAN device.

1-5
HIDDEN MODE KEYS
EEPROM EDIT Main unit ‘ (Volume)’ + Remote control ‘ (Night Mode)’
EEPROM CLEAR (Initialize) Main unit ‘ (Volume)’ + Remote control ‘SOUND EFFECT’
VERSION CHECK Main unit ‘ (Volume)’ + Remote control ‘ (Play/Pause)’
CLIP OFF
Main unit ‘ (Volume)’ + Remote control ‘F(Function)’CLIP ON
CLIP ON GAIN MONITERING
MAX Volume Edit
Enter : Main unit ‘ (Volume)’ + Remote control ‘AUTO POWER’
Setting : VOL /
Exit : (Play/Pause)
Wireless RF Change
Enter : Main unit ‘ (Volume)’ + Remote control ‘ (Backward Skip)’
Setting : /
Save and Exit : (Play/Pause)
BYPASS Sound Effect Main unit ‘ (Volume)’ + Remote control ‘AUTO VOL’
APD Time Display Main unit ‘ (Volume)’ + Remote control ‘AV SYNC’
APD On/Off Main unit ‘ (Volume)’ + Remote control ‘ (Forward Skip)’
Direction key for HIDDEN MODE Play/Pause (UP) / REPEAT (Down) / Forward Skip (Right) / Backward Skip (Left) /
AUTO VOL (Enter)
Demo Mode Enter : Main unit “MIN” (volume minimum state) + Main unit ‘F’ (Function) for 7 seconds.
Exit : Main unit ‘F’ (Function) for 7 seconds.
TV Remocon On/Off Remote control ‘AV SYNC’ + ‘VOL+’ for more than 3 seconds.
BT Name Display Remote control ‘REPEAT’ + ‘VOL+’ for more than 2 seconds.
Auto Display Remote control ‘AUTO POWER’ + ‘VOL+’ for more than 2 seconds.
Wireless Factory Main unit “MIN” (volume minimum state) + Remote control ‘ (Mute)’ for about 3 seconds.
HIDDEN KEY MODE

1-6
1. Preparation
- Remote control.
- Do format USB Memory to FAT32 File system.
- USB : Update file exist only in the USB Memory stick.
Ex ) SH5 :
MCS E:\PG540_SH5_*.bin (if USB driver is E:\)
EQ E:\EQ_PRG_*.BIN (if USB driver is E:\)
Wireless Tx E:\WIRELESS_TX.bin (if USB driver is E:\)
Wireless Rx E:\WIRELESS_RX.bin (if USB driver is E:\)
2. Update
1) Power on.
2) Select the USB function (USB Mode).
3) Insert USB.
4) Display in VFD.
MCS : “FW UP” “FINISH” Power off.
EQ : “EQ UP” “FINISH” Power off.
Wireless Tx : “UPDATE” “TX XX”(Progress) “FINISH” Power off.
Wireless Rx : “UPDATE” “RX XX”(Progress) “FINISH” Power off.
5) Loading is shown while updating.
Never remove USB or AC cord.
6) After update finish, show FINISH in VFD and power off automatically.
7) Power cord un-plug.
MCS / EQ PROGRAM UPDATE GUIDE

1-7
SPECIFICATIONS
• GENERAL
Power consumption 22 W
Networked standby : 0.5 W (If all network ports are activated.)
AC adapter Model : DA-38A25
Manufacturer : Asian Power Devices Inc.
Input : 100 - 240 V ~ 50 - 60 Hz 1.2 A
Output : 25 V 1.52 A
Dimensions (W x H x D) Approx. 945 mm x 53 mm x 85 mm, Without foot
Net Weight Approx. 2.6 kg
Operating temperature 5 °C to 35 °C
Operating humidity 5 % to 90 %
Bus Power Supply 5 V 500 mA
Available Digital Input Audio
Sampling Frequency 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
Available Digital Input Audio format Dolby Digital, DTS Digital Surround, PCM
• INPUT/OUTPUT
OPTICAL IN (Digital audio in) 3 V (p-p), Optical jack x 1
PORTABLE IN (Portable in) 0.5 Vrms (3.5 mm stereo jack) x 1
HDMI IN 19 Pin (Type A, HDMI™ connector) x 1
HDMI OUT 19 Pin (Type A, HDMI™ connector) x 1
• AMPLIFIER (RMS OUTPUT)
Total 320 W
Front 60 W x 2 (4 Ωat 1 khz, THD 10%)
Subwoofer 200 W (3 Ωat 80 Hz, THD 10%)
• WIRELESS SUBWOOFER
Power requirements Refer to the main label on the subwoofer.
Power consumption Refer to the main label on the subwoofer.
Type 1 Way 1 Speaker
Impedance 3 Ω
Rated Input Power 200 W
Max. Input Power 400 W
Dimensions (W x H x D) Approx. 171 mm x 320 mm x 252 mm
Net Weight Approx. 4.2 kg
• Designs and specifications are subject to change without prior notice.

1-8

2-1
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
DISASSEMBLY INSTRUCTIONS ..................................................................................................................... 2-2
1. HOW TO DISASSEMBLE THE MAIN SET .............................................................................................. 2-2
2. HOW TO DISASSEMBLE THE WOOFER ............................................................................................... 2-7
EXPLODED VIEWS ........................................................................................................................................... 2-9
1. MAIN SET SECTION ................................................................................................................................ 2-9
2. WIRELESS SUBWOOFER SECTION.................................................................................................... 2-11
3. PACKING ACCESSORY SECTION ....................................................................................................... 2-13

2-2
DISASSEMBLY INSTRUCTIONS
Figure 1-2
Figure 1-1
1. HOW TO DISASSEMBLE THE MAIN SET
2) Remove the Case Bottom Assembly.
1) Remove the 19 screws.

2-3
Figure 1-4
Figure 1-3
HOW TO DISASSEMBLE THE MAIN SET
4) Remove the SPK Chamber L/R Assembly.

3) Remove the 2 screws, Disconnect the Harmess/FFC cables (KEY, SPK) and Remove the Main PCB Assembly.
 

2-4
Figure 1-6
Figure 1-5
HOW TO DISASSEMBLE THE MAIN SET
6) Remove the 4 screws and Disconnect FFC cables (BT, Wireless).
5) Remove the L/R Deco Assembly.

G
G
BT
Wireless

2-5
Figure 1-8
Figure 1-7
HOW TO DISASSEMBLE THE MAIN SET
8) Remove the EMI Shield Tape of Bottom side.
7) Remove the EMI Shield Tape.


2-6
Figure 1-9
HOW TO DISASSEMBLE THE MAIN SET
9) Disassembly finish.

2-7
Figure 2-2
Figure 2-1
2. HOW TO DISASSEMBLE THE WOOFER
2) Remove the 5 screw s and Disconnect Harness/FFC cables (Wireless , Power, SPK) .
3) Remove the WF board Assembly and the Wireless Module.
1) Remove the 13 screws and pull out the Rear Panel Assembly.
Power Inlet
Socket
Wireless
FFC cable
SPK cable
Remove EVA
covered Wireless module

2-8
Figure 2-3
HOW TO DISASSEMBLE THE WOOFER
4) Disassembly finish.

286
286
262
260
A43
FRONT
MAIN
E
D
A
B
A46
C
266
LCD01
261
A44
G
G
281
506
506
282
A80L
B
283
506
282
281
506
A80R
A
283
284
252
252
A42
251
253
254
462
F
A55
KEY 255
E
F
CABLE1
WIRELESS
D
A54
CABLE3
A52
C
CABLE2
470
A41
506
506
271R
271L
462
462
506
272
272
274
273
273
263
265
285RR
285RL
285LR
285LL
264
268
267
256
CASE BOTTOM
EXPLODED VIEWS
1. MAIN SET SECTION

951
B
A
955
952
A
954
955
953
956
958
957
A900
A900W
B
959
950
A45W
A54W
960
960
961
2. WIRELESS SUBWOOFER SECTION

2-13
802 Box
803 Packing, Main
300 Power cord
808 Batteries (2)
804 Bag
806 Optical cable
801 Owner’s manual
833 AC adapter
900 Remote control
836 Screws (2)
835 Wall bracket
3. PACKING ACCESSORY SECTION