Block Diagram - Amp/Power Supply Section - Aiwa CX-JT7 Service Manual

CX-JT7
6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
(Except AEP, UK, CIS)
MIC LEVEL
AGC
Q401
J401
VR401
MIC D401
MIC MIXING
MIC AMP MIC AMP
IC401 (1/2) IC401 (2/2)
JK302
L
MD (VIDEO)
2 MIC
IN
R R-CH
37 MD-L
CD-L
A
(Page 22) 40 CD-L
TUNER-L
(Page 23) J 39 TUNER-L
TAPE-L, REC-L TAPE-L
G
(Page 23) 38 TAPE-L
35
REC-L
1 INA
IC303 (SUFFIX-11) IC303 (SUFFIX-13)
14
FREQUENCY
CONTROL
Q314 – 316
12 – 10
CTRL1 –
CTRL3
IC310 (SUFFIX-11) IC310 (SUFFIX-13)
DI, SO, CLK,
MCLK, LCK
K
(Page 23)
RESET,
POWER DOWN RESET RESET SWITCH
C
(Page 22)
Q901
POWER DOWN
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D402
CENTER VOLATAGE
19
GENERATOR
INPUT SELECTSWITCH, TONE CONTROL,
ELECTRICAL VOLUME, BASS BOOST AMP
IC301 (SUFFIX-11) IC301 (SUFFIX-13)
IC304 (SUFFIX-11) IC304 (SUFFIX-13)
TOUT 29 28 VOLIN2 OUT2 25
21 22
OUTA 6
BASS BOOST ENHANCER
7 13
BASS BOOST FEED BACK
+
CONTROL SWITCH
Q492 Q491
BASS BOOST BASS BOOST
ON/OFF SWITCH CONTROL
Q323 Q317 – 320
16 – 13
9
BB CTRL1 –
BB CTRL4
BASS BOOST CONTROLLER
3 4 5
+4V
RESET SIGNAL
GENERATOR
IC502
D504
+4V
+3.3V (SUB) REGULATOR
IC501
RECT
EVER+10V
D902 – 905
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R-CH
VM+10V R-CH
CURRENT
MIRROR
Q324
Q521, 523
BUFFER PRE DRIVE CASCADE FINAL DRIVE
IC304 Q517, 519 Q511, 513, 515 Q501, 503
MUTING
BIAS
Q525
Q507, 509
R-CH
OVER CURRENT
DETECT
Q13
D513
POWER OFF
MUTING DRIVER VM+10V
Q529, 530
MUTING CONTROL
SWITCH
Q527
R-CH
+3.3V (MAIN)
IC306 (SUFFIX-11) IC306 (SUFFIX-13)
+1.8V +4V
+1.8V
REGULATOR REGULATOR
(MP3)
IC803 IC306
D313 – 315 IC305 (SUFFIX-11) IC305 (SUFFIX-13)
P+7V
DECK+9V, M+9V
D102 IC308 (SUFFIX-11) IC308 (SUFFIX-13)
VM+9V
VM+10V
B+ SWITCH
VCC
Q301, 302
IC313 (SUFFIX-11) IC313 (SUFFIX-13)
TO
POWER AMP
BLOCK
VF1
TO VF2
FLUORESCENT
INDICATOR TUBE
–30V REGULATOR
–VFL Q533 – 536 (Except AEP, UK, CIS)
Q534 – 536 (AEP, UK, CIS)
SUB POWER
TRANSFORMER
PT902
24 24
SWITCHING
+VH
Q18
OUTPUT LEVEL
+
DETECT R-CH
Q20, 21
+VL
+
SWITCHING
R-CH
–VH
Q17, 19, 22
OUTPUT LEVEL
DETECT
Q23, 24
–VL
+
R-CH
OVER LOAD
DETECT
Q505
+ DC DETECT
R-CH
Q5, 6
+
+ THERMAL DETECT TH501,
Q10, 11 502
HOLD
Q12
HOLD
Q7 – 9
+
+9V RELAY B+
+9V
REGULATOR
IC305
+9V
RECT
REGULATOR MAIN POWER
D301 – 304
IC308 TRANSFORMER
PT901
VM
+10V
RECT
REGULATOR
VM
D319 – 322
IC313
VH
+VH RECT
D1 (Except AEP, UK, CIS)
VH
–VH
D3 – 6 (AEP, UK, CIS)
VL
+VL
RECT
VL
D2
–VL
(Chilean, Peruvian)
RY901
POWER ON/OFF
RELAY DRIVE
Q330, 331
RY902
Except
Chilean, Peruvian
MIC, SA
E
(Page 23)
FAN MOTOR
M731 HP
M
F
ON/OFF SWITCH (Page 23)
(FAN)
Q327, 328, 372, 373
J221
PHONES
R-CH
JK502
SPEAKER
+
L
–
+
RY501 R-CH
R
–
SPEAKER ON/OFF
SP-F
H
RELAY DRIVE (Page 23)
Q304
S-MUTE, O-POWER, HOLD
B
(Page 22)
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: REC
: MD (VIDEO) IN
: MIC INPUT
(Chilean, Peruvian)
S901
AC VOLTAGE
VOLTAGE
SELECTOR
(AC IN)
Except
Chilean, Peruvian