Read Sony SCD-1 / SCD-777ES (serv.man4) Service Manual online
13
13
SCD-1/777ES
4-9.
BLOCK DIAGRAM – POWER SUPPLY Section –
RECT
D408, 409
R429
R458
R456
RECT
D406
D406
RECT
D407
D407
RECT
D454
D454
RECT
D455
D455
RECT
D457, 458
RECT
D456
D456
+7V
REGULATOR
IC105, 205
+5V
REGULATOR
IC304, 308
+9V
REGULATOR
IC402
–9V
REGULATOR
IC403
RECT
D403, 404,
410, 411
–30V
REGULATOR
Q451
+12V
REGULATOR
IC451
+5V
REGULATOR
IC452
+3.3V
REGULATOR
IC453
REGULATOR
Q401, 403, 405, 407,
409, 411, 413, 415, 417
REGULATOR
Q402, 404, 406, 408,
410, 412, 414, 416, 418
+5V
REGULATOR
IC401
+5V
REGULATOR
IC309
–7V
REGULATOR
IC106, 206
+3.3V
REGULATOR
IC740
+3.3V
REGULATOR
IC741
05
F453
F452
F451
POWER
TRANSFORMER
(DIGITAL)
T451
DNMUTEZ
+5V
DIGITAL FILTER
(IC301) B+
+7V
CURRENT PULSE
(IC101, 201) B+
–7V
CURRENT PULSE
(IC101, 201) B–
+5V
D/A CONVERTER
(IC302) B+
+5V
AUDIO CIRCUIT
B+
AUDIO CIRCUIT
B+
AUDIO CIRCUIT
B–
F+
F–
D–30V
DG–30V
MOT+12V
A+3.3V
DRST
+3.3V
PLL (IC715) B+
ARP+3.3V
DIG+3.3V
A+5V, D+5V,
RF+5V, DIG+5V
+9V
REGULATOR AMP
(IC107, 207) B+
–9V
REGULATOR AMP
(IC107, 207) B–
D451
D452
D453
POWER
TRANSFORMER
(ANALOG)
T401
LINE FILTER
T482
LINE FILTER
T481
~AC IN
CN480
S409
(POWER)
(US, Canadian)
(AEP)
F481
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