Sony D-555 - Schematic Diagram - Main Section

4-4. SCHEMATIC DIAGRAM
SEG6 SEG2
1 2 3
—MAIN SECTION —
«See page 12
A '(KEY BOARD)
for waveforms.
* See page 31 for IC block
6 7 8
[LED-2 BOARD)
=
D901 902 D903,
SEL2913K SEL2913K SEL2913K pop)
68
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D906,
D904
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MNIB762SND-2
MASTER
CONTROL
ROSS RBS7 | ROSE
2k 910 | 430
0.5% 0.5%| 0.5%
S-B052AR-LF
RESET 9
34
1C856
TC7S32F
diagram.
9 10 11
I Mal
(LED-I BOARD]
ROS = R9S2
220 220
4 bw
DIS2 D9SS,
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SWITCH
Kerstoyaa “~~ (iilezsteks)
LEVEL INDICAT
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R308
10K
=—
R309 10k
r-9
R310 10k
303
5 22 6V TA
CXDIIGOAQ
ee DIGITAL
PROCESSOR
X301
16. 9344MHz
R312
MM
C302
CXD2550M
i DIGITAL
FILTER
Q301 ,303
D/A
CONVERTER
NUM2107F
AUDIO AMP
REG
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AUDIO AMP Ti
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MUTING
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at
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47
R207
nuti2107
1000
6. 3Yv Q 220
STA Cy
| QI01,, 103, 201, 203 T
MUTING
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— 72 —