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Service Adjustments with Replacing Memory IC(IC802)
[2] Required Service Adjustments
Readjust the following service adjustments.
Adjustments
Horizontal centre adjustment
Vertical centre adjustment
Vertical size adjustment
RF AGC adjustment
AFT adjustment
SIF adjustment
Grey scale adjustment
Further adjustment please refer to page 11 and 12 .
Following table shows the initial values which have been stored in the CPU ROM, and items for the service
adjustments.
Service mode adjustments table in CPU ROM
RANGE
INITIAL
NO. ITEM
OF DATA
VALUE
01
H-P
08
00-15
02
V-P
02
00-07
03
V-S
00-127
70
04
OSD
01
00-15
05
64
00-127
AGC
06
00-255
VCO
128
07
SIF
00-03
00
08
00
00-15
SELF
09
00-03
DLT
02
10
DL F
00, 01
01
11
B-ST
00
00, 01
12
ABCL
00, 01
01
13
AB-G
0, 01
00
14
TRAP
03
00-03
15
WBK
00, 01
00
16
BBK
00, 01
00
17
AFCG
02
00-02
18
RBI
00-255
00
19
GBI
00-255
00
20
BBI
00
00-255
Notes:
+ The initial value that the CPU writes down the CPU ROM data to the memory when replaced the memory IC. TV set
may not operate correctly with this initial value. It is required to set up the fine adjustment for service adjustments
described in the above.
Service Mode No. & Item
Item 01, H-P
Item 02, V-P
Item 03, V-S
Item 05, AGC
Item 06, VCO
Item 07, SIF
Item 18-22, 25-26.
FUNCTION
H-Phase (H-Centering) Adjustment
V-Position (V-Centering) Adjustment
V-Size Adjustment
OSD H-Position Adjustment
RF AGC Adjustment
VCO (AFT) Adjustment
SIF VCO Adjustment
Self Adjustment Mode Setting
DL Time Adjustment
DL Fine Adjustment
Black Stretch On/Off Setting
ABCL
ABCL Gain
Trap Frequency Adjustment
White Back Setting
Blue Back Setting
AFC Gain Adjustment
Red Bias Adjustment
Green Bias Adjustment
Blue Bias Adjustment
RANGE
INITIAL
NO. ITEM
OF DATA
VALUE
21
64
RD
22
64
BD
23
32
BRI
24
00
CON
25
-
DRV
26
-
-
27
R00
FF
98
R71
FF
99
R72
FF
-9-
FUNCTION
00-127
Red Drive Adjustment
00-127
Blue Drive Adjustment
00-63
AV mode brightness under the no signal condition
00-63
AV mode contrast under the no signal condition
-
White Balance Adjustment
-
1 LINE
00-FFh
CPU Debug Data
00-FFh
CPU Debug Data
Check Code
00-FFh
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