Block Diagram -Amp/Power Supply Section - Sony HCD-RG550 Service Manual

5-4. BLOCK DIAGRAM — AMP/POWER SUPPLY SECTION —
(Except RG660 AEP, UK)
MIC LEVEL
AGC MIC+10V
Q001
JK003
VR001
MIC
MIC LEVEL
MIC AMP MIC AMP
IC001 (1/2) IC001 (2/2)
JK302
INPUT SELECT SWITCH, TONE CONTROL,
L
2 MIC
MD (VIDEO) ELECTRICAL VOLUME, BASS BOOST AMP
IN
R R-CH
37 MD-L
(Page 25)
CD
A
CD-L 40 CD-L
SECTION
TOUT2
(Page 26)
TUNER/TAPE/PANEL
J
TUNER-L 39 TUNER-L
SECTION
TAPE-L
TAPE-L 38 TAPE-L
TUNER/TAPE/PANEL
G
REC-L 35 RECB-2
SECTION
(Page 26)
36 GAME-L
JK005
L
AUDIO
GAME
INPUT R R-CH
VIDEO
BASS BOOST CONTROLLER
JK004
VIDEO
OUT
DI
SO
CLK
TUNER/
MCLK
TAPE/
K
LCK
PANEL
MECHA VCC
SECTION
SOL-A
(Page 26)
SOL-B
RESET SIGNAL
RESET SWITCH
RESET GENERATOR
Q601
IC603
CD
C
SECTION
POWER DOWN
(Page 25)
+3.3V (SUB)
VACS/STR
CENTER VOLATAGE
GENERATOR
19
Q324
IC301
BUFFER
OUT2 25
IC304
29 28 VOLIN2
MUTE
Q321
21 22
MUTING CONTROL
IC310
3 4 5 9 10 11
+1.8V
(MP3)
VCC
+4V
D617
SUB POWER
+4V
TRANSFORMER
REGULATOR
T902
IC602
RECT
EVER+10V
D902 – 905
TUNER/TAPE/PANEL
E
SECTION
(Page 26)
SWITCHING
Q18
R-CH
SWITCHING
VM+10V
Q17, 19, 22
R-CH
CURRENT
MIRROR
Q521, 523
PRE DRIVE CASCADE FINAL DRIVE
Q517, 519 Q511, 513, 515 Q501, 503
MUTING BIAS
OVER LOAD
Q525 Q507, 509
DETECT
Q505
R-CH
+
R-CH
OVER CURRENT
+
DETECT
Q13
HOLD
Q12
D513
POWER OFF
MUTING DRIVER VM+10V
Q529, 530
SWITCH
Q527
+3.3V (MAIN)
+9V
+1.8V +4V +9V
REGULATOR REGULATOR REGULATOR
IC803 IC306 IC305
D313 – 315
P+7V
+9V
DECK+9V, M+9V REGULATOR
IC308
D102
VM+9V
+10V
REGULATOR
VM+10V
B+ SWITCH IC313
Q301, 302
+VH
–VH
TO
POWER AMP
BLOCK
+VL
–VL
VF1
TO
VF2
FLUORESCENT
–30V
INDICATOR TUBE
REGULATOR
–VFL
Q533 – 536
27 27
+VH
OUTPUT LEVEL FAN MOTOR
+
DETECT R-CH
ON/OFF SWITCH
Q20, 21
Q371,373
+VL
+
R-CH
–VH
OUTPUT LEVEL
DETECT
Q23, 24
R-CH
–VL
+
R-CH
+
R-CH
DC DETECT
Q5, 6
+ THERMAL DETECT TH501,
Q10, 11 502
RY501
DC DETECT
RY502
Q5,6
HOLD
SURROUND SPEAKER
Q7 – 9
ON/OFF RELAY DRIVE
+
FRONT SPEAKER
ON/OFF RELAY DRIVE
S-MUTE, O-POWER, HOLD
RELAY B+
DC DET
Q329
RECT
MAIN POWER R-ch is omitted due to same as L-ch.
D301 – 304
TRANSFORMER
SIGNAL PATH
T901
VM
RECT
VM
D319 – 322
VH
RECT
VH
D1
VL
RECT
VL
D2
RY901
POWER ON/OFF
RELAY DRIVE
Q330, 331
RY902
HCD-RG550/RG660
M731
TUNER/TAPE/PANEL
M
F
HP
(FAN)
SECTION
(Page 26)
JK006
PHONES
RG550
+
JK502
L
SPEAKER
–
JK502 (1/2)
+
R-CH
FRONT
R
–
SPEAKER
RG660
RG660
+
L
–
JK502 (2/2)
SURROUND
+
SPEAKER
R-CH
R
–
SURR
Q532
TUNER/TAPE/PANEL
H
SECTION
(Page 26)
SP-F
Q304
S-MUTE
CD
O-POWER
B
SECTION
HOLD
(Page 25)
MIC
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: REC
: MD (VIDEO) IN
: MIC INPUT
Except AEP, UK
MODEL
S901
VOLTAGE
SELECTOR
VOLTAGE
SELECTOR
(AC IN)
AEP, UK
MODEL