Sony HCD-EA20 Service Manual page 58

HCD-EA20
QQ
3 7 63 1515 0
– UCOM BOARD –
qf
IC501 qg (X2)
3.1 Vp-p
200 ns
1 V/DIV, 100 ns/DIV
– I/O BOARD –
qh ql
to :Color bars video signal
qh
IC252 ea (VOUTb)
2.7 Vp-p
H
1 V/DIV, 20 µ s/DIV
w;
IC291 qf (XO)
3.3 Vp-p
TE
L 13942296513
231 ns
1 V/DIV, 100 ns/DIV
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qj
IC252 ed (COUT)
2.0 Vp-p
H
1 V/DIV, 20 µ s/DIV
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– PANEL BOARD –
qg
Q803 collector
24.4 Vp-p
8.0 µ s
10 V/DIV, 4 µ s/DIV
qk
IC252 wk (YOUTb)
2.2 Vp-p
H
1 V/DIV, 20 µ s/DIV
Q Q
3 6 7 1 3
u163
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2 9 9 4 2 8
ql
IC251 2 (OUT)
2.7 Vp-p
H
1 V/DIV, 20 µ s/DIV
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9