Block Diagram - Amp/Power Supply Section - Sony Aiwa CX-JS3 Service Manual

CX-JS3
6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
SPEANA
H
(Page 19)
J602 L
VIDEO/AUX
R-CH
R
19 A-IN
CD
(Page 18) A
21 B-IN
PB-OUT 6
TU
E
(Page 19) 23 C-IN
PB, REC PB
(Page 19) F 2 PB1P
REC
28 REC1O
LM-L, LM-R,
TM-L, TM-R
(Page 18) D
CLK,
S-OUT, LCK
(Page 19) G
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD
: TUNER
: TAPE PLAY (DECK-A)
: TAPE REC
: AUX IN
RESET,
P-DOWN RESET
RESET SWITCH
C
(Page 18)
Q901
P-DOWN
R-CH
FEED BACK
SWITCH
Q643
DBFB CONTROL
Q641
17
BASS BOOST ENHANCER
IC671
7 VOL-IN OUT 18 1 INA OUTA 6
INPUT SELECT,
13 14 7
ELECTRICAL VOLUME
IC601
BOOST FREQUENCY
CONTROL CONTROL
Q674 – 677 Q671 – 673
8 – 11 5 – 7 16
BOOST1 – FREQ1 –
BOOST4 FREQ3
LM-L
14 LM-L
LM-R
BBE CONTROL,
15 LM-R
TM-L
LOADING/TABLE
12 TM-L
TM-R MOTOR DRIVE
13 TM-R
IC672
2 3 4
+3.3V (CD)
+4V
RESET SIGNAL
GENERATOR
IC502
D504
+4V POWER TRANSFORMER
+3.3V REGULATOR
IC501
RECT
V-STBY
D091, 092
SWITCHING
R-CH
SWITCHING
R-CH
CURRENT
MIRROR
Q105, 107
PRE DRIVE CASCADE FINAL DRIVE
Q101, 103 Q109, 111 Q121, 123
MUTING
Q181
BIAS
Q117, 119
R-CH
MUTING OVER CURRENT
CONTROL DETECT
Q183 Q281
VDD
REGULATOR
VM
D691 – 694
D697
+6.4V (CD)
+4V
REGULATOR
REGULATOR CD-VM
IC003
B+ SWITCH
+VH
VCC
Q023, 024
–VH
TO
POWER AMP
BLOCK
+VL
–VL
VSS
VF1
TO VF2
FLUORESCENT
INDICATOR TUBE
–27V
–VFL REGULATOR
Q041, 043
(SUB)
PT011
20 20
+VH
Q231
OUTPUT LEVEL
+
DETECT R-CH
Q233, 234
+VL
+VH
Q232
OUTPUT LEVEL
DETECT
Q235
+VL
R-CH
+
TH101, 102
R-CH
OVER LOAD
DETECT
THERMAL DETECT
+
Q129
Q291, 292
+
R-CH
DC DETECT
Q063, 064
HOLD
Q282
AC DETECT VH1, 2 (AC)
+
D067, 068 VH1, 2 (AC)
+
HOLD PROTECT
Q045, 046 Q047
+
+9V
IC002 POWER TRANSFORMER
(MAIN)
PT002
VM1
+9V
RECT
VM2
D019 – 022
IC001
VH1
RECT
VH2
D009
VL1
RECT
VL2
D015 – 018
RY001
RELAY DRIVE
Q022
(AC IN)
J221
PHONES
J203
SPEAKER
+
L
–
+
R
–
MUTE, POWER,
HOLD
B (Page 18)