Sony TRINITRON RM-Y194, Руководство по обслуживанию

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KV-21FK120
KV-21FK120
Display Position Adjustment (DISP)
1. Input a color-bar signal.
2. Set to Service Adjustment Mode.
3. Press 2 or 5 to select the MICRO Category.
4. Press 1 or 4 to select DISP.
5. Adjust values of DISP by pressing 3 or 6 to adjust characters to the
center.
6. Press MUTING then ENT to write into the memory.
7. Check to see if the text is displayed on the screen.
Sub Bright Adjustment (SBRT)
1. Input a monoscope signal.
2. Access the Service Adjustment Mode.
3. Press 2 or 5 to select the VP1 Category
4. Set the PICTURE and BRIGHTNESS to minimum.
5. Press 1 or 4 to select SBRT.
6. Adjust the values of SBRT with 3 or 6 to obtain a faintly visible
crosshatch.
7. Press MUTING then ENT to write into the memory.
Sub Hue, Sub Color Adjustment
(SHUE, SCOL)
1. Input color-bar signal at 75%.
2. Access 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. Press 2 or 5 to select the VP1 Category.
6. Press 1 or 4 to select SHUE.
7. While showing the SHUE item, adjust the waveform with 3 or 6 until
the second and third bars show the same level
(V2 = V3 < 0.15Vp-p). Set Sub Hue -2 Step.
8. Press 1 or 4 to select SCOL.
9. While showing the SCOL item, adjust the waveform with 3 or 6 until
the fi rst and fourth bars show the same level
(V1 = V4 < 0.15Vp-p). Set Sub Col +3 Step.
V1 V2 V3 V4
10. Press MUTING then ENT to write into the memory.
4-7. 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. Access the Service Adjustment Mode.
Category
Display
Item
Display
Data
Signal
Type Channel
Type
NTSC VIDEO1 DEF
M655E2AMF-107FP
S 3.OD
HSIZ 1 : 51 NVM:OK
R ON: ON (1)
G ON: OFF (0)
B ON: OFF (0)
4. Connect an oscilloscope probe to CV Board,
J1751Pin 12 (KR) (Red Out) .
5. Press 2 or 5 to select the 16:09 Category.
6. Press 1 or 4 to select SCON.
7. Press 3 or 6 to adjust the data value for SCON to 86 ± 3Vpp.
76 ± 3Vpp for 21 inch
R ON: ON (1)
G ON: ON (1)
B ON: ON (1)
8. Press MUTING then ENT to write into the memory.