Sony KP-46WT510 - 46" 16:9 Hi-scan Projection Television, Service Manual

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KP-46WT510
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
i
pin (B) on the (A board)
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”
Æ
“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
2.20 ± 0.05 Vp-p
GND
16.7ms
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
h
A Board : CN5 pin
h
5. Select “2103-1-02” (Main scon), and adjust so that the waveform level
of V
WB
is 1.55 ± 0.04Vp-p.
6. Select “2103-2-02” (Sub scon), and adjust so that the waveform level
of V
WB
is 1.55 ± 0.04Vp-p.
7. After completing the adjustments, write the data into memory by
pressing “MUTING”
Æ
“ENTER” on the remote commander.
White
Black
V
WB
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
h
A Board : CN5
h
5. Select “2103-1-02” (Main scon), and adjust so that the waveform level
of V
WB
is 1.55 ± 0.04Vp-p.
6. Select “2103-2-02” (Sub scon), and adjust so that the waveform level
of V
WB
is 1.55 ± 0.04Vp-p.
7. After completing the adjustments, write the data into memory by
pressing “MUTING”
Æ
“ENTER” on the remote commander.
White
Black
V
WB
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
i
of CN5 (A board) connector
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”
Æ
“ENTER” on the remote commander.
VB1 VB2 VB3 VB4
SECTION 4: CIRCUIT ADJUSTMENTS