Schematic Diagram - Mic Board - (Ea, Mx, Sp, Kr Models) - Sony HCD-FL7D Service Manual

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8-49. SCHEMATIC DIAGRAM – MIC Board – (EA, MX, SP, KR models) •
R359
100
C364
R360
10
10k
50V
R364 R361
0 10k
R363
100k
CN318
3P
+10V
MIC GND
MIC
T E
L 1 3 9 4 2 2 9 6 5 1 3
(Page 71)
R369
47k
C374
0.15
(EA,SP,KR)
w w w
.
See page 96 for IC Block Diagram.
C360 R358
100p 150k
IC351(2/2)
C358
NJM4580E-D(T1)
C361 R357
2.2 10k
6
50V
C359
7
47p
5
8
Q351
2SC2785
MIC
C363 CONTROL C362 C381
R362
10 10 100
1k
50V 50V 16V
RV352
R366
50k C366
15k
2.2
R365
50V
15k
C368 C367
1 0.022
50V
C378 C379
C376
47 47
6800p
16V 16V
R372 C377 R373
22k 0.068 120k
R370 R374
22k 270
DIGITAL
ECHO
IC352
M65850
C380
R375
R368 R367
22k 22k
C369
6800p
x a o
y
i
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8
MIC AMP
IC351(1/2)
C351
NJM4580E-D(T1)
2.2 C356 R352 0.22
50V 0.1 1k 50V
3
50V
1
C355
47p
2
R356 4
100
R355 C357
∗ ∗
R353
100k
RV351
50k
R354
1k
C354
C352
10
0.01
50V
∗ R355 ∗ C357
2.2k (MX) 220p (EA,SP,KR)
47k (EA,SP,KR) 470p (MX)
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3 7 6 3
1
50V
22k
u 1 6 3
.
87 87
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2 4
9 9 8
J351
MIC
FB351
0
R351
10k
1 5 1 5 0 8 9 2 4
C365
0.01
(CHASSIS)
m
c o
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
HCD-FL7D
2
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