SERVICE MODE
- While pressing the green button on the remote control press the P▼ on the cabinet front. The service menu appears.
- Use the P▲ or P▼ to highlight the service menu you require and press the F/OK button to enter.
- To ‘Exit’ Press the Menu button to navigate backwards through the service menus until menus disappear.
SERVICE MENU
OPTION SETTINGS
The memory IC, IC803, stores the option data of TV set and
service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be performed
following setting and “SERVICE ADJUSTMENT”
To enter to the Option Mode
- Press and hold the F/OK button on the remote control and P▼button on the front panel of the TV. The option window will appear on the screen.
To set the option mode
- Highlight the desired option item by using the P▲ or P▼ button .
- To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT)button.
- The data which is set in the option mode is stored into the memory IC automatically.
Following table shows the available option items
and default setting mode.
- To Exit from the Service Mode Press the MENU button.
SERVICE ADJUSTMENTS
Some items of the service adjustments for this
chassis are controlled by the CPU, IC801, and the adjustments are carried out
by using the RC handset.
INITIALIZATION OF MEMORY IC
- To initialize the memory IC (IC803), press and hold the NORMAL button on the remote control, then press the P▼ button on the front panel of the TV set and then turn the Mains switch Off and On. The initialization is now completed.
- When initialized the memory IC and all of the setting data (option data and service adjustment data) stored in the IC are reset to the default value. It is necessary to set the option settings and readjust the service adjustments.
TDA9885 : This can be adjusted for AGC.
Video : This can be adjusted for the service adjustment.
DO NOT ADJUST OTHER SETTINGS
After replacing the Memory IC (IC803)
The memory IC, IC803, stores the service adjustments data
for each circuit, therefore, when the memory IC is replaced, using “OPTION
SETTING” on previous page and the following adjustments should program it.
Service menu: Video
- Enter the service adjustment menu as described on the previous page and select “Video” using the P▼or P▲ buttons and then press the F/OK button to enter.
- Use the P▼ or P▲ buttons to select the option, and then press the F/OK button on the remote control to enter.
- Enter the service adjustment menu as described on the previous page and select “Sound” using the P▼ or P▲ buttons and then press the F/OK button to enter.
- Use the P ▼or P▲ buttons to select the option, and then press the F/OK button on the remote control to enter.
- Enter the service adjustment menu as described on the previous page and select “TDA9885” using the P▼ or P▲ buttons and then press the F/OK button to enter.
- Use the P▼ or P▲ buttons to select the option, then press the F/OK button on the remote control to enter.
Write 1 70
Do not attempt to adjust the following service adjustments
except when adjustments are required in servicing otherwise it may cause loss
of performance and product safety.
AGC ADJUSTMENT
- Select the clearest VHF station
- Connect a digital voltmeter to test point TP-A and GND
- Enter service menu : TDA9885
- With the P▼ or P▲ buttons select “Write 1”
- Adjust using the Vol ▼ or Vol ▲ buttons until the readout from the voltmeter is 3.2 VDC.
- Make sure the set is warm (20 mins)
- Receive Black and White picture/pattern
- Enter service menu “Video”
- Select item “White Point R” or “White Point B”
- Using the Vol + or Vol - buttons adjust to make the white, white.
- Set wide screen mode to “FULL”.
- Preferably receive a circular pattern
- Enter service menu “LCD Parameters”
- Use the P▼ or P▲ buttons to highlight “H Display start”.
- Press the Vol ▲ or Vol ▼ buttons to adjust horizontal centre.
- Set wide screen mode to “FULL”.
- Preferably receive a circular pattern
- Enter service menu “LCD Parameters”
- Use the P▼ or P▲ buttons to highlight “V Display start”
- Press the Vol ▼ or Vol ▲ buttons to adjust the vertical centre.
Universal Remote Control Set-up Codes
GE Universal Remote: 0049 0097 0110 0004 0268 0012 0108 0180
RCA RCR 311W: 1047, 1078,
1080, 1121, 1129, 1163
RCA RCR 312W: 10054, 10154,
10159, 11142
{Others} 0018 0020 0041 0049 0050 0065 0101 0102 0107 0131
0139 0152 0161 0166 0177 0181 0195 0198 0209 0215 0314 0320 0379 0391 0408 0421
0634 0660 0667 1073 1079 1069 1072 1145 1423 10611178 1047 1171 1298 1316 1347
1349 1143 1157 1172 1208 1360 1024 1115 1052 1232 1046
007 014 020 032 033 051 052 074 086 087 108 123 159 189 218 221
249 286