Circuit Adjustments; Blue Offset Adjustment; P&P Sub Contrast Adjustment (Video) (Scon); P&P Sub Contrast Adjustment - Sony KP-51WS500 Mode D'emploi

4-1. BLUE OFFSET ADJUSTMENT

1. Receive the all black (1080i, component) signal with VIDEO 5 input,
and set PICTURE to maximum.
2. Connect an oscilloscope between CN5
and ground.
3. Set in the service mode and select the category "2150D-2".
4. Adjust "SLIN" so that the waveform level is 2.20 ± 0.05Vpp.
5. After completing the adjustments, write the data into memory by
pressing "MUTING" " "ENTER" on the remote commander.
6. Receive the RF signal and change the wide screen mode to "Wide
Zoom". Copy the same data to "SLIN".
Reference Pulse
16.7ms
GND
4-2. P &P SUB CONTRAST
ADJUSTMENT (VIDEO) (SCON)
1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, 7.5% setup)
VIDEO terminal (main) : Color-bar (white-75%, 7.5% setup)
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Minimum
2150P-2 1 RGBS : 2
3. Set to P & P mode, and set to service mode.
4. Connect an oscilloscope between the check point and ground.
Check points : CN5 pin #
A Board : CN5 pin #
5. Select "2103-1-02" (Main scon), and adjust so that the waveform level
of V is 1.55 ± 0.04Vp-p.
WB
6. Select "2103-2-02" (Sub scon), and adjust so that the waveform level
of V is 1.55 ± 0.04Vp-p.
WB
7. After completing the adjustments, write the data into memory by
pressing "MUTING" " "ENTER" on the remote commander.
Black
SECTION 4: CIRCUIT ADJUSTMENTS
!
pin (B) on the (A board)
2.20 ± 0.05 Vp-p
White
V
WB
— 47 —
4-3. P & P SUB CONTRAST ADJUSTMENT

(RF) (SCON)

1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, 7.5% setup)
VIDEO terminal (main) : Color-bar (white-75%, 7.5% setup)
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Minimum
2150P-2 1 RGBS : 2
3. Set to P & P mode, and set to service mode.
4. Connect an oscilloscope between the check point and ground.
Check points : CN5 #
A Board : CN5 #
5. Select "2103-1-02" (Main scon), and adjust so that the waveform level
of V is 1.55 ± 0.04Vp-p.
WB
6. Select "2103-2-02" (Sub scon), and adjust so that the waveform level
of V is 1.55 ± 0.04Vp-p.
WB
7. After completing the adjustments, write the data into memory by
pressing "MUTING" " "ENTER" on the remote commander.
Black
4-4. P & P SUB-HUE AND SUB-COLOR
ADJUSTMENT (VIDEO) (SHUE, SCOL)
1. Receive the signal.
TV terminal (sub) : Color-bar (white-75%, 7.5% setup)
VIDEO terminal (main) : Color-bar (white-75%, 7.5% setup)
2. VIDEO MODE : Pro
PICTURE : Maximum
COLOR : Center
2150P-2 1 RGBS : 7
3. Set to P & P mode, and set to service mode.
4. Connect an oscilloscope between pin
and ground.
5. Select "2103-1-03 SCOL, -04 SHUE" (Main), and adjust them to have
VB1 ≤ VB4 and VB2 ≤ VB3 in the waveform levels.
6. Select "2103-2-03 SCOL, -04 SHUE" (Sub), and adjust them to have
VB1 ≤ VB4 and VB2 ≤ VB3 in the waveform levels.
7. After completing the adjustments, write the data into memory by
pressing "MUTING" " "ENTER" on the remote commander.
KP-51WS500/57WS500/65WS500
White
V
WB
!
of CN5 (A board) connector
VB1 VB2 VB3 VB4