Schematic Diagram - I-Bass Section - Sony Aiwa CX-JD5 Service Manual

6-28. SCHEMATIC DIAGRAM – I-BASS Section – •
R491 R492
220k 220k
NO104
8P
IBASS-R-OUT
A-GND
IBASS-R-IN
A-GND
IBASS-L-IN
A-GND
IBASS-L-OUT
(Page 57) A+9V
C330
4.7
50V
C316
4.7
50V
C315
4.7
50V
C329
4.7
50V
R366
220
See page 74 for IC Block Diagram.
Q491
2SC3052
FEED BACK
R495
SWITCH
22k
Q492
2SK2158
BOOST
CONTROL
C492
R493 C491 R494
1
100k 0.015 220k
50V
R347
4.7k
C340
R338
47
4.7k
16V
C382 C384
0.0033 0.033
BASS BOOST
ENHANCER
IC303
NJM2156
C383 C385
0.0033 0.033
R375 R339 R403 R331
10k 1k 1.5k 1.5k
R340
10k Q314-316
FREQUENCY
CONTROL
Q314 Q315 Q316
2SK2158 2SK2158 2SK2158
R386
10k
R385
10k
Q333 Q332
2SC3052 2SC3052
R332 R468 R333 R334 R337 R467 R336
15k 15k 10k 8.2k 1.5k 1.5k 18k
R479
47k
Q317
2SK2158
Q318
2SK2158
Q317-320
BOOST
Q319
CONTROL
2SK2158
Q320
2SK2158
R300
4.7k
Q323
2SC3052
C400
BBE CONTROL
22
25V
59 59
R383 100k
R382 100k
R381 100k
R384
10k
Q331-333
FREQUENCY
Q331
CONTROL
2SC3052
SWITCH
R380 R379 R378 R377
100k 100k 100k 100k
Q327-330
BOOST
CONTROL
SWITCH
R327
10k
Q327
2SC3052
R328
10k
Q328
2SC3052
R329
10k
Q329
2SC3052
R330
10k
R370 Q330
10k 2SC3052
R367
4.7k
C341
47
16V
CX-JD5
NO103
8P
39
40
41
42
43
44
45
46 (Page 57)