Block Diagram - Amp, Power Supply Section - Sony CFD-CD777SMK2 Service Manual

CFD-CD777SMK2
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6-4. BLOCK DIAGRAM – AMP, POWER SUPPLY Section –
L-CH
E
(Page 21)
R-CH
F
(Page 21)
D340
MUTING
G
(Page 21)
TUNER MUTE
D
(Page 19)
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POWER AMP
IC103
L-CH
L-CH
+IN
3
+ +OUT
PRE POWER
20
–IN
– DRIVER AMP
5
L-CH
–IN
4
– –OUT
PRE POWER
22
+
DRIVER AMP
R-CH
R-CH
+IN
9
+ +OUT
PRE POWER
17
–IN
– DRIVER AMP
7
R-CH
–IN
8
–
PRE POWER –OUT
14
+
DRIVER AMP
SW
10
AU +7.5V
COM +5V
+5V
B+ SWITCH
REGULATOR
CD +5V
Q317, 331
Q319
Q Q
3 7 6
D337
POWER ON
D323
MUTING DRIVER
TUNER B+
Q350
S302 (3/3)
+
D350 FUNCTION
CD +7.5V
CD
TV/LINE IN
RADIO
DUBBING
TAPE
(CD/RADIO OFF)
D327
OPR/BATT
MOTOR B+
u 1 6 3
.
22 22
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2 4
8 9 9
J301
PHONES
SP901
(WOOFER)
L-CH
SP902
(TWEETER)
SP903
(WOOFER)
R-CH
J304
SP904
SPEAKER
(TWEETER)
IMPEDANCE 4Ω
+7.5V
REGULATOR
Q309
3 1 5 1 5 0 8 9 2
TRANSFORMER
RECT
D901 – 904
DC +12V
POWER AMP
(IC103) B+
+7.5V
REGULATOR
Q311
D321
S604
(DECK A FF/REW)
S302 (1/3)
FUNCTION
S603
(DECK B FF/REW)
+10V
REGULATOR
Q310
m
c o
2
8 9 9
• SIGNAL PATH
: TUNER
4 9 8 2 9 9
T901
J901
POWER
AC IN
VOLTAGE F901
SELECTOR
S901
DRY BATTERY
D905
SIZE ''D''
(IEC DESIGNATION
R20) F902
8PCS. 12V
J902
DC IN 12V