Sony TRINITRON GDM-1601 Service Manual page 31

8) Adjust the H convergence on the Y axis operating the
H CONY VR (RV4 and 5) on the L board.
I[1
RV4
LW
Fig. 2·6·4
9) Adjust the H convergence by the reactor on the left
side seen from the CRT.
(a) H AMP positive balance correction
R ~
I
I
I
I
Set the N pole (white paint mark)
on the core on the Screw C side and
rotate the Screw A.
(b) H AMP negative balance correction
Set the N pole (white paint mark)
on the core on the Screw B side and
rotate the Screw A.
(c) H TI L T positive balance correction
R B
Ii
B R
,
I
I
I
I
Rotate the Screw B so that the coil
can move forward.
(d) H TI L T negative balance correction
Rotate the Screw C so that the coil
can move forward.
Fig. 2·6·5
4·5
2-7. Checking Synchronization
(Black hatch signal is preferred for adjusting the following
items.)
Check that synchronization is normal under the condi-
tions described below.
l) When the monitor POWER switch is turned on and
off.
2) When the SG G-video switch is turned on and off
(including SYNC).
2-8. Adjustment of Top and Bottom Pincushion
Distortion
Input the Green Cross-hatch signal.
1) The picture should appear as shown in Fig. 2·8-2
when the boards have been adjusted. If not, adjust
to obtain a picture as shown in Fig. 2·8-2 with the
RVI06 and RVI04.
RV101
o •
,;--; I
RV1041
RV108 m'l"itt--_-<"-; ::--=
RV102 .;
::~IRV10511
RV103 '; ':"';--RV2031
RV204"-"
~V206/) ~RV20J
.,
,
.-
/ . l'RV207
o
RY208 R V205
RV202
RV301
Fig. 2-8·1 Location of RV104, 105, 106, 107
Fig. 2·8·2
2) Maintain this condition and move the correction
crests to the center as shown in the following
with the ITOP PHASEI VR (RVI07) and IBOTTOM
PHASE I VR (RVI05).