Schematic Diagram - Main (4/5) Section - Sony CFD-CD777SMK2 Service Manual

CFD-CD777SMK2
6-10. SCHEMATIC DIAGRAM – MAIN Section (4/5) – • See page 34 for IC Block Diagram.
HE601 (4/5)
HRP601
CNP301
5P
S304 CNP303 CNW303
6P 6P
(REC/PB)
-3 -1
-4 -2
CNP312 CNW312
5P 5P
HP601
CNP302
4P
R351
4.7k
GND
ST DET
RA 7.5V
L CH
(Page 25)
R CH
S605
(DACK A PLAY)
S604
(DACK A FF/REW)
CNP304
12P
S601
(DACK B PLAY)
S603
(DACK B FF/REW)
A
B
B+
GND
M601
(CAPSTAN/RELL)
C101
820p
T301
BIAS OSC
R102
7.5k
C333
0.001
C201 R339
820p 270
C319
R202 C321
100
7.5k 0.01
10V
R342 1k
C202 C102 C311 C320 R338
560p 560p 0.01 0.0033 22k
R201 1k R203 220
R101 1k R103 220
FUNCTION SWITCH,AGC,
REC/PB EQ AMP,
REC BIAS OSC
IC101
BA3426AS
C108
0.012
R104
220
R105 R204
100 220
C107
C106 C206
22
560p 560p
25V
R353 10k
Q307,308 R356
100k
NORMAL/HIGH
SPEED CONTROL
R384 R354
8.2k 8.2k Q307
RV302
2SK105ATP-40
2.2k
S
C399
Q308
470
KTC3198GR-AT
16V
28 28
C350
390p
C335
180p
Q335
KRC110M
SWITCHING
R340
10k
Q330
KRC110M
C354 R392 C351 R386
SWITCHING
0.1 47k 0.1 47k
C331
C322 R341
220
0.01 1k
10V
R403
47k
C324
C103 C203 C323
220
0.1 0.1 1000p
10V
C208
0.012
R372 C339 C326
820 220p 0.1
R205
100
C207
22
25V
R371
10k
R107 22k
R391
47k
R207 22k
R350 S303
22k
HIGH SPEED
DUBBING
OFF
R352 R349
22k 10k
ON
R357
6.8k
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
〈〈 〉〉 : TAPE REC (DECK B)
< > : TAPE PLAY (DECK A)
[ ] : CD PLAY
S305
(1/2)
B1
S305
(2/2)
B2
(Page 29)
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
REC
R CH
L CH
(Page 27)