Schematic Diagram - Main Section (1/4) - Sony ICF-CD523 Service Manual

ICF-CD523
Ver. 1.1
6-3. SCHEMATIC DIAGRAM – MAIN Section (1/4) –
LCD401
LIQUID CRYSTAL DISPLAY
S413 S414 S408
ALARM ALARM
ON/OFF
S412 S409 S404
S415 S406 S403
CLOCK
D.S.T
SUMMER.T
PRESET TUNING
SELECT/ PRESET
S403 S408 S412 S404 S409
CN403
1 2 3 4 5 8P
CN404
8P
S416 S411 S402 S401
OPEN/CLOSE CD PLAY MODE
S410 S407 S405
RADIO ON OFF/ALARM RESET CD
BAND
TUNE/TRACK/TIME SET
S402 S401
- +
ICF-CD523
• See page 25 for Waveforms. • See page 30 for IC Pin Function Description.
(1/4)
D402
SLA-360MT3F
LCD BACK CN405
CN406
R486 22P 22P
LIGHT
220
A20
A19
A18
A17
A16
A15
A14
A13 A6
A12 A5
A11 A4
A10 A3
A9 A2
A8 A1
A7
A6
A5
A4
A3
A2
A1
JC401
0
KS3 C410
KS2 C411
KS1 C412
KS0 C413
C414
0.01
CN402 CN401
9P 9P
KS3 KS3 KS3
KS2 KS2 KS2
C407
KS1 KS1 KS1
100
10V
KS0 KS0 KS0
KR0 KR0 B1
KR1 KR1 B2
KR2 KR2 B3
KR3 KR3 B4
R420 1k
SEG10
R421 1k
SEG11
R422 1k
SEG12
R423 1k
SEG13
R424 1k
SEG14
R425 1k
SEG15
R426 1k
SEG16
R427 1k
SEG17
R428 1k SYSTEM CONTROLLER
SEG18
IC401
R429 1k
µPD789406AGC-
SEG19
044-8BT-A
R430 1k
NC
R431 1k
B MUT
R432 1k
C RST
R433 1k
KS4
100p R434 1k
KS3
100p R435 1k
KS2
100p R436 1k
KS1
100p R437 1k
KS0
AVDD
AVREF
(AEP)
R438
10k
JW445
R439
(US, CND)
10k
R704
22k
R705
22k
R443 R445
100k 100k
20 20
C401 C402
0.01 100
10V
R401
22k
R402
47k JW443
R481 1k R482 100k
KR3
R479 1k R480 100k
KR2
R477 1k R478 100k
KR1
R475 1k R476 100k
KR0
R474 1k C457 0.1
TRAY CLOSE
R473 1k C456 0.1
TRAY OPEN
IC
X402 32.768kHz
C447
XT1
22p C444
C445
0.1
XT2 C446 100
22p 10V
VDD0
VSS0
X401 C441
X1
4.19MHz 22p
X2
RESET
R467 1k JC403 0 C439 22p
SHIFT1
R466 1k JC402 0
SHIFT0
R465 1k
POWER ON
R464 1k
R LAT
R463 1k C434 100p
R CLK
R462 1k C435 100p
R DATA
C436 1000p
C433 100p
R461
470k
R460 100
R459 100
R458
1k
RESET SIGNAL
GENERATOR
IC402
PST600L-T
O I
G
C426 C430
0.01 0.1
C431
470
6.3V
R484
22k
C449
2200p
(Page 22)
B4
B3
B2
B1
1
2
3
4 (Page 21)
D401 L401
1SS119 22µH
5
C458
0.1
6
7
8
(Page 23)