Section 4: Circuit Adjustments; P & P Sub Contrast Adjustment (Video) (Scon); P & P Sub Contrast Adjustment (Rf) (Scon); P & P Sub-Hue And Sub-Color Adjustment Video (Shue, Scol) - Sony KDP-51WS655 Service Manual

4-1. P & P SUB CONTRAST ADJUSTMENT
(VIDEO) (SCON)
1. Receive the signal.
VIDEO 1 terminal Composite: Color-bar
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Minimum
MCP RON = 0
BON = 0
3. Set to P & P mode, and receive the color bars in both main and sub
(left and right), and set to service mode.
4. Connect an oscilloscope between the check point and ground.
Check points : A Board CN5 pin 6 (G)
5. Select "CCPM-YLEV" (Main scon), and adjust so that the waveform
level of VWB is 1.75 ± 0.03Vp-p.
6. Select "YCTS-SCON" (Sub scon), and adjust so that the waveform
level of VWB is 1.75 ± 0.03Vp-p.
7. After completing the adjustments, write the data into memory by
pressing "MUTING" "ENTER" on the remote commander.
Black
4-2. P & P SUB CONTRAST ADJUSTMENT
(RF) (SCON)
1. Receive the signal.
TV terminal RF : Color-bar (white-75%, 7.5% setup)
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Minimum
MCP RON = 0
BON = 0
3. Set to P & P mode, and receive the color bars in both main and sub
(left and right), and set to service mode.
4. Connect an oscilloscope between the check point and ground.
Check points : A Board CN5 pin 6 (G)
5. Select "CCPM-YLEV" (Main scon), and adjust so that the waveform
level of VWB is 1.75 ± 0.03Vp-p.
6. Select "YCTS-SCON" (Sub scon), and adjust so that the waveform
level of VWB is 1.75 ± 0.03Vp-p.
7. After completing the adjustments, write the data into memory by
pressing "MUTING" "ENTER" on the remote commander.
Black
KDP-51WS655/57WS655

SECTION 4: CIRCUIT ADJUSTMENTS

(white-75%, 7.5% setup)
White
VWB
White
VWB
4-3. P & P SUB-HUE AND SUB-COLOR
ADJUSTMENT VIDEO (SHUE, SCOL)
1. Receive the signal.
VIDEO 1 terminal Composite: Color-bar
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Center
3. Set to P & P mode, and receive the color bars in both main and sub
(left and right), set to service mode.
4. Connect an oscilloscope between pin 7 of CN5 (A Board) connector
and ground.
5. Select "CCPM-CLEV, CCPM-SHUE" (Main), and adjust them to have
VB1 = VB4 ± 40mV and VB2 = VB3 ± 40mV in the waveform levels.
6. Select "YCTS-SCOL, YCTS-SHUE" (Sub), and adjust them to have
VB1 = VB4 ± 40mV and VB2 = VB3 ± 40mVin the waveform levels.
7. After completing the adjustments, write the data into memory by
pressing "MUTING" "ENTER" on the remote commander.
4-4. P & P SUB-HUE AND SUB-COLOR
ADJUSTMENT (RF) (SHUE, SCOL)
1. Receive the signal.
TV terminal : Color-bar (white-75%, 7.5% setup)
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Center
3. Set to P & P mode, and receive the color bars in both main and sub
(left and right), set to service mode.
4. Connect an oscilloscope between pin 7 of CN5 (A Board) connector
and ground.
5. Select "CCPM-CLEV, CCPM-SHUE" (Main), and adjust them to have
VB1 = VB4 ± 40mV and VB2 = VB3 ± 40mV in the waveform levels.
6. Select "YCTS-SCOL, YCTS-SHUE" (Sub), and adjust them to have
VB1 = VB4 ± 40mV and VB2 = VB3 ± 40mV in the waveform levels.
7. After completing the adjustments, write the data into memory by
pressing "MUTING" "ENTER" on the remote commander.
KDP-51WS655/57WS655
(white-75%, 7.5% setup)
VB1 = VB4 ± 40mV
VB2 = VB3 ± 40mV
VB1 VB2 VB3 VB4
VB1 = VB4 ± 40mV
VB2 = VB3 ± 40mV
VB1 VB2 VB3 VB4
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