Block Diagram - Main Section - Aiwa CX-JV77 Service Manual

6-3. BLOCK DIAGRAM – MAIN Section –
MIC
(Page 24)
F
JK101 (1/2)
L
VIDEO/SAT
IN
R R-CH
CD-L
(Page 24)
E
FM/AM TUNER PACK
FM 75Ω
FM ANT TUNER-L
COAXIAL
TUNER-R R-CH
ANT GND
LC72121 DI
AM ANT
LC72121 DO
AM
LC72121 CLK
ANT GND
LC72121 CE
TUNED
TUNED
STEREO
STEREO
TU-MUTING
TU MUTE
L-CH
HP1
(PB)
(DECK-A)
R-CH R-CH
L-CH
HRPE1
R-CH R-CH
(REC/PB/ERASE)
(DECK-B)
ERASE
REC/PB
SWITCH
IC201,
Q322, 323
LM-L, LM-R,
TM-L, TM-R
(Page 23) A
CD-MUTING
(Page 24)
J
FRONT SP RELAY
(Page 26)
H
CX-JV77
58
63 MD L
LINE OUT1 L 54
1 CD L
TONE OUT1 37 36 VIN1 VOL OUT1
61 TUNER L
3 TAPE L
DO
DI
CLK
INPUT SELECT,
CE
TONE CONTROL,
ELECTRICAL VOLUME
IC101
SAOUT1
AMS OUT
7 PB OUT1
REC OUT1
9 TAPE A1
11 TAPE B1
19 18
REC BIAS
SWITCH B +9V
Q324
BIAS OSC
BIAS OSC
L101
Q321
LOADING/TABLE
MOTOR DRIVE
IC371
6 7
TU-MUTING
11 Q5
LM-F
14 Q8 Q6 12
LM-R
13 Q7
TM-F
16 Q10
TM-R
15 Q9
10 Q4
17 Q11
3 4 5
85 83 86 84 67 68 87 91 88
JK101 (2/2)
L
VIDEO/SAT
OUT
R-CH R
LINE AMP
33
IC102
R-CH
FEED BACK POWER ON
MUTING
SWITCH MUTING
Q103
Q106 Q105
R-CH
B+9V
56
+
R-CH D201
40
15
MUTING
CONTROL
Q101, 102
BAND-PASS
AMS DETECT
FILTER
Q327
Q351, 352
69 24 18 75
SYSTEM CONTROLLER
IC601 (2/3)
25 25
POWER
AMP
IC441
R-CH
+
STANDBY
OVER LOAD DC
SWITCH
DETECT DETECT
Q489
Q441, 442 Q481, 482
D481
LEVEL
R-CH
SHIFT THERMAL
+
Q490, 491 DETECT
Q483, 484
TH441
POWER ON
MUTING B+9V
Q309, 313
POWER AMP PROTECT
ON/OFF DETECT
Q308 Q485, 487
+
D207
TAPE MECHANISM
DECK BLOCK
Q606
CAPSTAN/REEL
M M
MOTOR DRIVE
Q601
(CAPSTAN/REEL)
Q608
PLUNGER DRIVE
(DECK-A)
Q603
(DECK-A)
Q607
PLUNGER DRIVE
(DECK-B)
Q602
(DECK-B)
A-HALF
A-MODE
2 4 3
I-TAPE A STAT 22 REC (REW)
B-HALF
B-MODE
I-TAPE B STAT 23 REC (FWD)
I-REEL A IN 70 A-PHOTO
I-REEL B IN
71 B-PHOTO
CX-JV77
JK441
–1
+
L
–
FRONT SPEAKER
IMPEDANCE
–2
+
USE 6 – 16Ω
R
–
RY441
+
L
–
SURROUND SPEAKER
IMPEDANCE
+
USE 24Ω
PROTECTOR
Q486, 488 R
–
J801
PHONES
HP DET
G
(Page 24)
D206
FAN MOTOR
+ M901
M M
DRIVE
(FAN)
Q310
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
: CD PLAY
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
: AUX IN
: MIC