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Sony KP 61S75 User Manual

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– 49 –
KP-43T75/48S75/
53N77/53S75/61S75
RM-Y906
5-1. TV INPUT SUB CONTRAST ADJUSTMENT
(VPNT-SCON)
1. Receive the color-bar signal.
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: maximum
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA VPNT SCON
: 7
3. Set to service mode.
4. Connect an oscilloscope between pin 
7 of CN204 (A board)
and ground.
5. Select  “ VPNT-SCON  ”, and adjust so that the wave from
level is 1.80 
±
 0.05Vp-p.
6. Write the data into memory.
MUTING   n   ENTER
White
1.80 
±
 0.05Vp-p
Black
Fig. 5-1
SECTION 5
CIRCUIT ADJUSTMENTS
5-2. VIDEO INPUT SUB-HUE AND SUB-COLOR
ADJUSTMENT (VPNT-SHUE, SCOL)
1. Select VIDEO1 input and supply the color-bar signal.
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: center
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA VPNT-SHUE
: 7
SERVICE DATA 
VPNT-SCOL
: 7
3. Set to service mode.
4. Connect an oscilloscope between pin  
5  of CN204 (A board)
connecter and ground.
5. Select “ VPNT-SHUE, SCOL ”, and adjust them to have VB1
= VB4 and VB2 = VB3 in the waveform levels.
6. Increase SCOL by 2 steps.
7. Write the data into memory.
MUTING   n   ENTER
VB1      VB2     VB3     VB4
Fig. 5-2
5-3. COMPONENT INPUT SUB-HUE AND SUB-COLOR
ADJUSTMENT (DAC-UVSH, UVSC)
1. Select VIDEO 4 and supply the color-bar signal.
VIDEO input
2. Mode
: Personal 1 or 2.
PICTURE
: maximum
COLOR
: center
BRIGHTNESS
: center
TRINITONE
: medium
SERVICE DATA DAC UVSH
: 31
SERVICE DATA 
DAC UVSC
: 31
3. Set to service mode.
4. Connect an oscilloscope between pin  
5  of CN204 (A board)
connecter and ground.
5. Select “ DAC-UVSH, UVSC ”, and adjust them to have VB1
= VB4 and VB2 = VB3 in the waveform levels.
6. Write the data into memory.
MUTING   n   ENTER
VB1      VB2     VB3     VB4
Fig. 5-3
5-4. P & P SUB CONTRAST ADJUSTMENT
(SC-SYDR)
1. Receive the signal.
TV terminal (sub)
: color-bar signal
VIDEO terminal (main) : no signal
2. Set to service mode and set to P & P mode.
3. Connect an oscilloscope between pin 
7 of CN204 (A board)
and ground.
4. Select “ SC-SYDR ”, and adjust so that the wave from level
is 1.65 
±
 0.05Vp-p.
5. Write the data into memory.
MUTING   n   ENTER
White
1.65 
±
 0.05Vp-p
Black
Fig. 5-4