Sony HCD-DZ230 Service Manual page 29

• Circuit Boards Location
MS-203 board
P-SW board
FL board
JACK board
HCD-DZ230/DZ231/HDZ235
DMPORT board
(DZ230/DZ231)
TUNER (FM/AM)
IO-SCART board (DZ230/DZ231)
IO-S-OUT board (HDZ235)
SPEAKER board
MAIN board
INSURATOR board
HEATSINK A board
POWER board
• Waveforms
– MAIN Board –
1
IC1101 6 (DVDRFIP)
200 mV/DIV, 100 ns/DIV
2
IC1101
1 V/DIV, 10 ns/DIV
3
IC1101 <z,m (CVBS)
HEATSINK B board
500 mV/DIV, 20 µ s/DIV
4
IC501 qg (XIN)
200 ns
1 V/DIV, 100 ns/DIV
5
IC3010 rk (XFSOIN)
20.3 ns
1 V/DIV, 10 ns/DIV
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– IO-SCART Board (DZ230/DZ231) –
6
IC230 wf (CYOUTa)
900 mVp-p
500 mV/DIV, 20 µ s/DIV
(XTALI) 7
<xcv IC230 wa (CbOUTa)
3.3 Vp-p
37 ns H
µ
500 mV/DIV, 20 s/DIV
8
IC230 qk (CrOUTa)
1.5 Vp-p
H
H
µ
500 mV/DIV, 20 s/DIV
– IO-S-OUT Board (HDZ235) –
3.0 Vp-p
9
IC308 wh (C OUT)
H
1 V/DIV, 20 µ s/DIV
q;
IC308 wa (Y OUT)
5.0 Vp-p
1 V/DIV, 20 µ s/DIV
qa
IC308 w; (CY OUT)
1 V/DIV, 20 µ s/DIV
HCD-DZ230/DZ231/HDZ235
1.7 Vp-p
H
1.7 Vp-p
1.7 Vp-p
qs
IC308 qk (Cb OUT)
1.3 Vp-p
1.8 Vp-p
H
500 mV/DIV, 20 µ s/DIV
qd
IC308 qh (Cr OUT)
2 Vp-p
H
1.5 Vp-p
H
500 mV/DIV, 20 µ s/DIV
2 Vp-p
H