ICF-DVD57TV
21
21
ICF-DVD57TV
RV1501
V COM Adjustment
RV1901
5.0V Adjustment
RV1902
DC/DC Converter
Frequency Adjustment
RV1651
PLL Adjustment
– MONITOR BOARD (Component Side) –
TP1952
TP1951
TP1954
TP1960
TP1965
TP1964
TP1963
TP1510
TP1909
TP1907
TP1651
TP1901
(GND)
TP1906
TP1515
TP1412
– MONITOR BOARD (Conductor Side) –
TP1421
Adjustment and Connecting Location:
5-7-9.
B-Sub CONT (B-ch Sub Contrast) Adjustment
Adjusting Procedure:
1. Connect an oscilloscope of 10 step voltage to the TP1965 and
TP1901 (GND) on the MONITOR board.
2. Adjust the
. / >
keys so that the
E
level of the
waveform on the oscilloscope is 3.25
±
0.1 Vp-p.
Connection: (5-7-10 to 5-7-12)
5-7-10. VCO Free Run Adjustment
Condition:
Input the NTSC video signal (10 step (no burst)) (1 Vp-p 75 W) to
the INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.
Adjusting Procedure:
Adjust the
. / >
keys so that a screen on the monitor may
become normal.
5-7-11. PLL/V POS Adjustment
Condition:
Input the NTSC video signal (monoscope) (1 Vp-p 75 W) to the
INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.
Adjusting Procedure:
Press the
. / >
keys to adjust so that the position of screen
on the monitor becomes vertically symmetric.
5-7-12. H POS Adjustment
Condition:
Input the NTSC video signal (monoscope) (1 Vp-p 75 W) to the
INPUT VIDEO jack (JK501) on the MAIN board from NTSC
pattern generator.
Adjusting Procedure:
Press the
. / >
keys to adjust so that the position of screen
on the monitor becomes horizontally symmetric.
E
0V
NTSC pattern
generator
set
INPUT VIDEO jack
(JK501)
