Schematic Diagram - Key Section - Aiwa CX-JV4 Service Manual

6-23. SCHEMATIC DIAGRAM – KEY Section – •
CN303
23P
A-GND
MIC-OUT
I-MIC
VDD
D-GND
K7
K7
K8
K8
K1
K1
K2
K2
K5
K5
K6
K6
K3
K3
K4
K4
(Page 41)
O-POWER LED
E2
LATCH(ECHO)
E3
DATA(ECHO)
E1
CLK(ECHO)
V-BASS
VM
B10
B10
B9
B9
B8
B8
VDD(STBY)
See page 47 for IC Block Diagram.
R301 R302 R303 R304 R305 R306
0 1k 820 1k 1.2k 1.2k
B8
S301 S302 S303 S304 S305
DIR(TAPE B)/ STOP TUNING DOWN PAUSE/ TUNING UP
PRESET CLEAR SET
R311 R312 R313 R314 R315 R316
0 1k 820 1k 1.2k 1.2k
B9
S311
S307 S308 S309 S310
TUNER
MODE ENTER CD TAPE A/B
BAND
R321 R322 R323 R324 R325
0 1k 820 1k 1.2k
B10
S315 S316 S317 S318
POWER DISPLAY
- +
ALBUM
Q402-407
LEVEL SHIFT
R438 R437 R436
10k 10k 10k
LED201
SLR325-VC
i-BASS
R231
1k
LED901 Q404
SLI325-URC DTC114EK
Q405
DTC114EK
STANDBY/ON
Q406
DTC114EK
Q407
DTC114EK
R801 R803
10k 10
1
2
3
R802 C801 C802 R804
10k 1000p 1000p 10
S306
R805 R807
i-BASS
10k 10
1
2
3
R806 C803 C804 R808
R317 R318 10k 1000p 1000p 10
1.8k 1.8k
S312
S314
VIDEO/ S313
SYNC DUB
AUX
REC
REC MUTING
CN301 CN302
5P 5P
KEY3
D-GND
NC
NC
NC
R420 R421
180 180
C420
0.1
C423
47
R435 R434 R433 10V
10k 10k 10k
E1
Q402
DTC114EK
Q403
DTC114EK
E2
E3
C429
0.1
R425
0
R439
1k
L401
82µH
C432 C430
150p 150p
43 43
R809 R811
10k 10
A A
S801 1
VOLUME
C C
2
B B
3
R810 C805 C806 R812
10k 1000p 1000p 10
R813 R815
10k 10
A A
S802 1
BASS
C C
2
B B
3
R814 C807 C808 R816
10k 1000p 1000p 10
R326 R327 R328 R329
1.2k 1.8k 1.8k 2.7k
KEY3
D-GND
S319 S320 S321 S322
NC
NC
NC OPEN/CLOSE 3 2 1
DISC DIRECT PLAY
R414
C412
10
1 50V
R423 4.7k C439 0.1
R408
100 C408
C438 0.1 R424 120k
0.1
50V
C424 0.01
R413 C411
C425 47k 820p
0.068
IC401(2/2) C416
NJM4565M-TE2 0.1
50V
5 VR401
7 10K
6
MIC MIXING
4
R432 R412
10k 2.2k
C409
C410
22 R409 D401
50V 2.2k 1SS133
C427 C426
1500p 0.068
R407
2.2k
DIGITAL ECHO
C428
0.01
CX-JV4
S803
TREBLE
S804
MULTI JOG
S323
DISC
CHANGE
R404
8 6.8k C404
3
0.22 R402
1
50V 4.7k
2
R405 J401
IC401(1/2)
2.2k
NJM4565M-TE2 MIC
C407 R406
82p 270k
MIC AMP
C441
0.1
R410
2.2k
C419
0.1
C406
R411
10 220
2.2k
50V 10V
S
(CHASSIS)
Q401
2SK2158
MIC LEVEL
AGC
C405
1
50V