Id Map Table; A Board Adjustments - Sony TRINITRON KV-20FS120 Service Manual

4-5. ID MAP TABLE

Model
KV-20FS120
KV-20FS120
KV-21FM120
KV-21FS120
KV-21FS120
KV-21FA310
KV-21FA310
KV-24FS120
KV-24FS120
KV-25FS120
KV-25FS120

4-6. A BOARD ADJUSTMENTS

H. Frequency (Free Run) Check
1. Input a TV mode (RF) with no signal.
2. Connect a frequency counter to base of Q502
(TP-25 H. DRIVE) on the A Board.
3. Check H. Frequency for 15735 ± 200 Hz.
V. Frequency (Free Run) Check
1. Select video 1 with no signal input.
2. Set the conditions for a standard setting.
3. Connect the frequency counter to TP-27 (V OUT) or CN515 pin 6
(V DY+) and ground on the A Board .
4. Check that V. Frequency shows 60 ± 4 Hz.
Drive (SCON)
1. Input a color-bar signal and set the level to 75%.
2. Set in Pro mode + PICTURE MAX.
3. Activate the Service Adjustment Mode.
Mode Category
service
Signal
Type
ntsc
vchp
R ON:
G ON:
B ON:
4. Connect an oscilloscope probe to CV Board,
J1751Pin 12 (KR) (Red Out) .
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
Destination ID-O ID-1 ID-2 ID-3 ID-4 ID-5 ID-6 ID-7
89
US
89
CND
81
L NORTH
81
L NORTH
L SOUTH 81
L NORTH
81
L SOUTH 81
US
89
CND 89
L NORTH
81
L SOUTH
81
Item
Display
Data
Item
video rdrv
26
00000000 00000000
ON (1)
OFF (0)
OFF (0)
KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120
7 9 34 0
7 9 50 0
3 0 130 32
7 9 130 32
7 9 130 32
23 113 130 32
23 113 130 32
23 9 34 0
23 9 50 0
23 9 130 32
23 9 130 32
5. Select SCON with 1 and 4 .
6. Adjust the value of SCON with 3 and 6 for 86 ± 3Vpp for 20/21 inch,
and 96 ± 3Vpp for 24/25 inch.
76 –
82 –
R ON:
G ON:
B ON:
7. Press MUTING then ENTER to save into the memory.
16 0 5
16 0 5
16 48 69
16 48 69
16 48 69
16 48 69
16 48 69
16 0 5
16 0 5
16 48 69
16 48 69
3Vpp for 20/21 inch
3Vpp for 24/25 inch
ON (1)
ON (1)
ON (1)
34