4-4. Id Map Table; 4-5. A Board Adjustments - Sony TRINITRON KV-20FS100 Manual De Servicio

4-4. ID MAP TABLE

Model Destination ID-O
KV-20FS100 US 89
KV-20FS100 CND 89
KV-20FV300 US 89
KV-20FV300 CND 89
KV-21FS100 E 81
KV-21FM100 E 81
KV-21FV300 E 81
KV-24FV300 US 89
KV-24FV300 CND 89
KV-25FV300 E 81

4-5. 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 Standard mode.
3. Activate the Service Adjustment Mode.
4. Set AALS, ABLS, GON and BON items. Using 3 and 6 set each to
the following values. Leave RON set to "1".
Category
Mode
service video
Signal
Type
ntsc
vchp
00000000 00000000
AALS: OFF (0)
ABLS: OFF (1)
R ON: ON (1)
G ON: OFF (0)
B ON: OFF (0)
5. Connect an oscilloscope probe to CV Board, J1751Pin 12 (KR) (Red
Out) .
6. Select SCON with 1 and 4 .
7. Adjust the value of SCON with 3 and 6 for
86 ± 3Vpp for 20/21 inch and 96 ± 3Vpp for 24/25 inch.
ID-1 ID-2 ID-3 ID-4 ID-5 ID-6
7 65 33 128 48 0
7 65 49 128 48 0
23 231 35 128 48 0
23 231 51 128 48 0
7 81 129 160 48 0
3 64 129 160 16 0
23 231 131 160 48 0
23 231 35 128 48 0
23 231 51 128 48 0
23 231 131 160 48 0
Item
Display
Data
Item
rdrv 26
86 ± 3Vpp for 20 inch and
ID-7
96 ± 3Vpp for 24 inch.
150
150
150
150
214
198
214
150
150
8. Reset AALS, ABLS, GON and BON values to "1".
214
AALS: ON (1)
ABLS: ON (0)
R ON: ON (1)
G ON: ON (1)
B ON: ON (1)
9. Press MUTING then ENTER to save into the memory.
DISPLAY POSITION ADJUSTMENT (DISP)
1. Input a color-bar signal.
2. Set to Service Adjustment Mode.
3. Select DISP with 1 and 4 .
4. Adjust values of DISP with 3 and 6 to adjust characters to the
center.
5. Write to memory by pressing MUTING then ENTER .
6. Check to see if the text is displayed on the screen.
Mode Category
service micro
Signal
Type
ntsc
vchp
SUB BRIGHT ADJUSTMENT (SBRT)
1. Input a monoscope signal.
2. Activate the Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Select the SBRT item with 1 and 4 .
5. Adjust the values of SBRT with 3 and 6 to obtain a faintly visible
crosshatch.
6. Press MUTING then ENTER to save into the memory.
SUB HUE, SUB COLOR ADJUSTMENT
(SHUE, SCOL)
1. Input color-bar signal at 75%.
2. Activate the Service Adjustment Mode.
3. Set (PIC) to Max and (COL) to 50%.
4. Connect an oscilloscope probe to CV Board, CN301Pin 4 Blue
Out.
5. Select the SHUE and SCOL item with 1 and 4 .
6. While showing the SHUE item, adjust the waveform with 1
and 4 until the second and third bars show the same level
(V2 = V3 < 0.15Vp-p). Set Sub Hue -2 Step.
— 26 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
Item
Display
Data
Item
disp 48
00000000 00000000