LG 32SL8000-ZB (CHASSIS:LD91K) Service Manual ▷ View online
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4.5. Outgoing condition Configuration
- When pressing IN-STOP key by SVC remote control, Red
LED are blinked alternatively. And then automatically turn off.
(Must not AC power OFF during blinking)
Confirm whether is normal or not when between power
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second
5. Serial number D/L
• Press “Power on” key of service remote control.
(Baud rate : 115200 bps)
• Connect RS232 Signal Cable to RS-232 Jack.
• Write Serial number by use RS-232.
• Must check the serial number at the Diagnostics of SET UP
• Write Serial number by use RS-232.
• Must check the serial number at the Diagnostics of SET UP
menu. (Refer to below).
5.1. Signal TABLE
CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20ms
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20ms
5.2. Command Set
* Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write : Model Name and Serial Number write in EEPROM.
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write : Model Name and Serial Number write in EEPROM.
5.3. Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0.
by D-book 4.0.
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or Service man, sometimes
model name or serial number is initialized.(Not always)
There is impossible to download by bar code scan, so It
need Manual download.
1) Press the ‘Instart’ key of ADJ remote control.
2) Go to the menu ‘5.Model Number D/L’ like below photo.
3) Input the Factory model name(ex 42LH4000-ZA) or Serial
model name or serial number is initialized.(Not always)
There is impossible to download by bar code scan, so It
need Manual download.
1) Press the ‘Instart’ key of ADJ remote control.
2) Go to the menu ‘5.Model Number D/L’ like below photo.
3) Input the Factory model name(ex 42LH4000-ZA) or Serial
number like photo.
4) Check the model name Instart menu -> Factory name
displayed (ex 42SL8000-ZB)
5) Check the Diagnostics (DTV country only) -> Buyer model
displayed (ex 42SL8000-ZB)
CMD
LENGTH
ADH
ADL
DATA_1
. . .
Data_n
CS
DELAY
No. Adjust
mode
CMD(hex)
LENGTH(hex)
Description
1
EEPROM WRITE
A0h
84h+n
n-bytes Write (n = 1~16)
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1. Power-up Boot Fail
TROUBLESHOOTING
P800 Pin #7~#10
Voltage Level = 5V ?
P800 Pin #2
Voltage level = 5V ?
Check Power connector
OK ?
Replace Power Board
YES
NO
YES
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
NO
Replace Power Board
YES
NO
Replace MAIN B'D Q801
MAIN B’D L803 = 3.3V ?
Replace MAIN B’D IC801
YES
NO
MAIN B’D L816 = 1.26V ?
Replace MAIN B’D IC805
YES
NO
MAIN B’D L815 = 3.3V ?
Replace MAIN B’D IC810
YES
NO
Check MAIN B’D X100 Clock
12MHz
Replace MAIN B’D IC100
YES
NO
Replace MAIN B’D IC102
NAND FLASH
YES
Replace MAIN B’D IC103
Serial Flash
NO
Replace MAIN B’D
IC300, IC301 DDR2 Memory
NO
Replace MAIN B’D IC100
NO
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2. No OSD
P800 Pin #20
Voltage level = 2V
Check Power connector
OK ?
Replace Power Board
YES
NO
YES
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
NO
Replace Power Board
YES
NO
Replace MAIN B’D Q802
MAIN B’ D L810 = 12V ?
Replace MAIN B’ D Q806
YES
NO
MAIN B’ D C854 = 1.8V ?
Replace MAIN B’ D IC807
YES
NO
MAIN B’ D C833 = 1.26V ?
Replace MAIN B’ D IC802
YES
NO
Check MAIN B’ D X900 Clock
12MHz
Replace MAIN B’ D IC900
YES
NO
Replace MAIN B’ D IC902
Serial FLASH
YES
Replace MAIN B’ D
IC1000, IC1001 DDR2 Memory
NO
P800 Pin #13, 14 = 12V
P800 Pin #17, 18 = 24V ?
P900~T-con LVDS Cable
OK ?
YES
Replace LVDS Cable
NO
Replace MAIN B’D IC900
NO
-
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4. Analog TV Video Problem
Check RF Cable
MAIN B’D L821 = 5V ?
YES
MAIN B’D C894 = 3.3V ?
NO
Replace MAIN B’D IC809
YES
NO
Replace MAIN B’D IC808
MAIN B’D C870= 1.8V ?
Replace MAIN B’D IC811
YES
NO
MAIN B’ D X1202 Clock
31.875MHz ?
Replace MAIN B’D IC1200
YES
NO
MAIN B’ D X1201 Clock
20.25MHz ?
Replace MAIN B’D IC1203
YES
NO
Replace Main board IC100
YES
3. Digital TV Video Problem
Check RF Cable
MAIN B’D L821 = 5V ?
YES
MAIN B’D C894 = 3.3V ?
NO
Replace MAIN B’D IC809
YES
NO
Replace MAIN B’D IC808
MAIN B’D C870= 1.8V ?
Replace MAIN B’D IC811
YES
NO
MAIN B’D L1211 = 1.2V ?
Replace MAIN B’D IC1202
YES
NO
MAIN B’D X1202 Clock
31.875MHz ?
Replace MAIN B’D IC1200
YES
NO
MAIN B’D X1201 Clock
20.25MHz ?
Replace MAIN B’D IC1203
YES
NO
Replace Main board IC100
YES
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