Sanyo 28H1, Service Manual

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Service Manual EH1 chassis
+063 Xtal +002 Fixed X’tal setting, 0:3.58+3.58, 1:3.58, 2:4.43, 3:4.43+3.58
+064 System +224 Fixed Sub address setting 01 of TDA9134
+065 TintTDA +016 Fixed Tint setting of TDA9143
+066 YDelyPA +010 Fixed Y/C phase setting for PAL (sub address setting 18 of TDA9143)
+067 YDelyNT +010 Fixed Y/C phase setting for NTSC (sub address setting 18 of TDA9143)
+068 YDelySE +010 Fixed Y/C phase setting for SECAM (sub address setting 18 of TDA9143)
+069 Country +001 ADJSTBL 0: auto search 1: ATS
+070 WideOpt +001 Fixed 0: 16:9 mode off 1: 16:9 mode on
+071 TxBrit +040 Fixed Black level setting of teletext mode
+072 TxCont +062 Fixed Contrast setting of teletext
Notes:
+ The initial value that the CPU writes down the CPU ROM data to the memory when replaced the memory IC. TV
set does not operate correctly with this initial value.
+ The items which are shown with “fixed” in the status column in the table above are preset by factory as standard.
So do not change value otherwise the set may not operate properly.
+ The items which are shown with “RECOMD” are normally not required for re-adjustment but it may change the
value to improve the performance.
+ The items which are shown with “ADJSTBL” should be re-adjusted following steps.
STEREO SEPARATION ADJUSTMENT
1. Enter to the service mode.
2. Select item 000 and set data to “+000“, select item 001
and set data to “-006“.
VERTICAL CENTRING ADJUSTMENT
1. Receive circular pattern.
2. Enter to the service mode.
3. Select Item 5 and adjust the vertical centre.
VERTICAL HEIGHT ADJUSTMENT
1. Receive circular pattern.
2. Enter to the service mode.
3. Select Item 6 and adjust the vertical height.
HORIZONTAL CENTRING ADJUSTMENT
1. Receive circular pattern.
2. Enter to the service mode.
3. Select Item 9 and adjust the horizontal centre.
HORIZONTAL WIDTH ADJUSTMENT
1. Receive circular pattern.
2. Enter to the service mode.
3. Select Item 10 and adjust the horizontal width.
WHITE BALANCE ADJUSTMENT
1. Receive white pattern.
2. Enter to the service mode.
3. Adjust white balance using the following items,
Item 034 R drive adjustment
Item 035 B drive adjustment
DCS GAIN ADJUSTMENT
1. Enter to the service mode.
2. Select item 059 and set data to “100”.
AUTO SETUP OPTION SETTING
1. Enter to the service mode.
2. Select item 057 and set data as follows;
Value +000 : Auto search mode for UK and Ireland
Value +001 : ATS mode for W. Europe countries.
SERVICE ADJUSTMENTS-1
After replacing the memory IC, IC802, following service adjustments must be carried out.