Da(Dc-1) Board Adjustment - Sony Multiscan CPD-1604S Service Manual

IH
10 ADJUSTMENT (RV301. RV302)
I
(57 kHz)
1. Receive a signal of 57 kHz.
2. Short circuit between pin
<D
and pin @ of TP301
with a jumper wire.
3. Connect a frequency counter across collector of
0402 and ground.
4. Adjust RV301 (FX MAX) 56.47 Hz
±
500 Hz
on the frequency counter.
(31 kHz)
1. Receive a signal of 31 kHz.
2. Short circuit between pin
<D
and pin @ of TP301
with a jumper wire.
3. Connect a frequency counter across collector of
0402 and ground.
4. Adjust RV302 (FH MIN) for 31.47 kHz ±500
Hz on the frequency counter.
NOTE:
IH Fe ADJUSTMENT I
If there is not frequency counter:
It has to short No.1. 3 of TP301, and adjust
RV301 with 31.47kHz mode. It doesn't have
to streem monitor. also RV302 adjust with 57kHz
mode.
The all white signal correspond easier.
5-2. D AND DA (DC-1) BOARD ADJUSTMENT
o
RV401
IH-POSII
RV403 RV202
o
board
IH-SIZEI IV-SIZE I
RV201
IV-LINEI
(§)
RV2~
laRIGHTI
RV404 RV203
IH-SHIFTI iv-POSII
-21-
CPD-1604S/1604SA
IH.
POSITION (RV401. SW401)
I
1. Input a cross-hatch signal of 57 kHz.
2. Display a back-raster on the screen with G2
VR.
3. Adjust RV401 (H. paso so that the back-raster
position to come center.
4. In case of the back-raster is not move till center.
using SW401 (H. pas I TAP SW).
Iv.
LINE. V. SIZE. V. POSI (RV20 1, RV202, RV203)
I
, . Input a cross-hatch signal of 48 kHz.
2. Adjust RV203 (V. paS!) so that the vertical
position to come center.
3. Adjust vertical linearity with RV201 (V. LINE).
4. Adjust vertical size with RV202 (V. SIZE).
I
H_ SIZE. LIMITER (RV403. RV312)
I
1. Input a cross-hatch signal of 57 kHz MODE.
2. Switch over AUTO SIZE SW (SW402) to LOCK
position.
3. Set RV403 (H. SIZE) of user volume to minimum.
4. Adjust RV312 (HS LIMIT) so that the horizontal
size to become 298
±
1 mm.
148
kHz.
DEFLECTION SYSTEM ADJUSTMENT
I
*
Input a cross-hatch signal of 48 kHz as following
adjustment.
H. SIZE (RV403)
Adjust RV403 (H. SIZE) on D board so that the
horiiontal size to become 300
±
4.00 mm.
1
225
±
3.0
mm
•
-+- 300 ± 4.0
mmf04-
• PARA CORE (RV308)
Adjust direct association and parallelogram strain
with RV308 (PARA CORE) on DA CDC-1)
board.