TO ENTER SERVICE MODE
- Decrease the Volume to [0] by pressing Volume (-) button on the remote control.
- Press ‘MENU’ on the front panel of the TV while pressing and holding the ‘MUTE’ on the remote control to display “S” on the upper left corner of the screen.
FUNCTION OF SERVICE MODE
MCU controls the operation of ICs via IIC bus. In service mode, the items are adjusted by the remote control.
In the Service Mode:
Press "PIP CH+" repeatedly to scan through the following menus.
Press "CH +/-" to select an item, and press "VOLUME +/-" to adjust the data value to selected item.
MENU-1
MENU-2 & 3
MENU-4
MENU-5
The values in Menu-2 and Menu-5 are averages or definite values at the factory. Only adjust the values allowed to adjust and do not change those are not allowed to do so. Otherwise it will cause the TV to run improperly.
SELF CHECK
Self check is used to check the ICs and function modules of the TV. Press "PIP CH+" to display the following menu when in the service mode.
"ERROR" instead of "OK" displays when something wrong with ICs
Displays
|
Position number
|
IC functions
|
Circuit boards
|
TDA9332
|
N005
|
RGB PROCESSING, H/V ACTIVATING
|
MAIN CHASSIS
|
TEA6425
|
NV04
|
VIDEO SWITCHING
|
AV BOARD
|
TEA6420
|
NV02
|
AUDIO SWITCHING
|
AV BOARD
|
TUNERM
|
N002
|
MAIN TUNER
|
MAIN CHASSIS
|
MSP3440
|
NV01
|
BTSC SOUND PROCESSING
|
AV BOARD
|
TUNERP
|
N001
|
SUB-TUNER
|
MAIN CHASSIS
|
VPX3226
|
U14
|
PIP DECODING
|
FB BOARD
|
EEPROM
|
U3
|
MAIN MEMORY
|
MCU BOARD
|
EXTRAM
|
U7
|
EXTERNAL RAM FOR MCU
|
MCU BOARD
|
SPI
|
--------
|
CONVERGENCE MODULE
|
CONVERGENCE BOARD.
|
