Sony TRINITRON KV-20EXR20 Service Manual page 25

KV-20EXR20
RM-Y103
[suB HUE, SUB COLOR ADJUSTMENT (SHUE, SCOL)|
1) Input a color-bar signal.
2) Press| VIDEO} — then|RESET|to normal.
3) Set to Service Mode.
4) Connect an oscilloscope to[B OUT] (TP 47B) on C
board and ground.
5) Adjust |3 and(4]to the VI=V4 and V2=V3 by select
to SHUE and SCOL with[I]and[4].
vi v4
v2 v3
6) Write into the memory by pressing >
then|ENTER].
V.SIZE ADJUSTMENT (VSIZ)|
1) Set to Service Mode.
2) Input a cross-hatch signal.
3) Adjust 8 and [6| to the best vertical size by selecting
VSIZ with(lJand[4} .
4) Write into the memory by pressing [MUTING] >
then{ENTER].
[H.SIZE ADJUSTMENT (HSIZ)|
1) Input a cross-hatch signal.
2) Press{VIDEO] —> then [RESET]to normal.
3) Set to Service Mode.
4) Adjust 3]and(6|to best horizontal size by selecting
HSIZ with{i|ana{4].
5) Write into the memory by pressing >
then[ENTER].
H.CENTER ADJUSTMENT (HPOS
Note: Perform this adjustment after H.FREQ adjust-
ment.
1) Input a cross-hatch signal.
2)Adjust H.CENT to change the A-55 connecting
position to center.
3) Press|VIDEO| — then to normal.
4) Set to Service Mode.
5) Select HPOS with[IJana[4].
)
)
6) Adjust [3]and[6to the best picture.
7) Write into the memory by pressing |IMUTING| >
then|ENTER}.
oi
+ ae
PIN AMP, CORNER PIN AND PIN PHASE ADJUSTMENT]
1) Input a coss-hatch signal.
2) Press|[VIDEO| > then|RESET}to normal.
3) Set to Service Mode.
4) Select PAMP, CPIN and PPHA with(l]and [4].
5) Adjust [3|and|6|to the best picture.
6) Write the memory by|MUTING| > [ENTER].
PIN ANP
CT a
CONER PIN
STC
(003)
PIN PHASE
VNU
1) Set to Service Mode.
2) Select to [TEST] with [i] and [4] , set the data to "1".
Then select MPX and change data to "08" .
3) Connect an audio oscillator to R116 using a capacitor
(10u F/16V), set frequency to 62.936 kHz.
And then, through the 10k92_ resistor, feed 9.3 V
into the pin@) of VIF pack.
VIF PACK from
9.3 V line .
10K
V4fh: SINE-WAVE 62.936 KHz
LEVEL 3.0 Vp-p
i %