Read Sony ICF-CD843L Service Manual online
ICF-CD843L
23
23
5-11. SCHEMATIC DIAGRAM – PANEL Section –
R448
R
410
R
411
R413
R
412
R
414
R
415
R416
R
417
R
418
R419
R
420
R421
R
422
R
423
R424
R425
R426
R427
R428
R429
R430
R431
R432
R433
R434
R435
R436
R437
R438
R439
R440
R441
R462
R
463
R
464
R
466
R
467
R
468
R
470
R469
R
461
R
471
R
472
R
473
R454
R457 R458
C452
C445
C446
R
459
R460
R
456
R
455
S601
S602
S603
S604
S605
BP602
S606
S607
S608
S609
R611
R612
R613
R614
R616
R617
R618
R447
R607
R603
R601
R602
R604
R606
R608
R610
C408
C409
C
413
C
414
C415
C416
C
417
C418
C420
C
422
C411
C406
C407
D402
R475
R474
Q403
Q401
C447
C448
R491
R492
R
493
R494
R
453
R
452
R
450
R
449
C
405
C449
C404
C444
C443
R446
R445
R443
C
457
C456
C
455
C433
C436
C435
C434
C431
R480
R479
R478
R489
R487
R406
R404
R641
R642
R643
R405
S618
S617
S619
S620
S621
R640
R490
R488
Q402
CN402
BP603
BP604
S610
S611
S612
S613
S614
S615
C601
R619
R620
R621
R622
R623
R624
R627
R626
R628
R630
IC402
D403
R451
CN401
L401 100
µ
H
BP601
R654
R655
R653
R652
R651
R650
R649
R648
R647
R646
R645
R644
R495
R485
R476
Q405
R442
LCD401
BP605
S616
R631
R633
R637
R632
R634
R636
R638
D602
D601
D603
JC401
R408
R409
X401
C429
C432
L403
C
410
C424
C430
X402
Q404
C453
R497
R
444
IC401
C427
D609
D608
D607
D606
D605
D604
R402
R401
C401
R403
C402
C403
C439
C441
C442
C438
C437
100
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
1k
10k
47
47
47
10k
1k
0
1k
0
1k
100
100
10k
1
0.01
0.01
220k
100k
100k
220k
220k
100k
100k
47k
22k
47k
22k
1k
47k
100k
220k
100k
47k
22k
22k
10k
0.01
100p
100p
100p
47p
100p
100p
1000p
0.01
0.01
2200p
100p
0.01
1SS119
1k
1k
DTA144EUA
-T106
DTA144EUA
-T106
1
1
220
100
1k
470
100k
220k
100k
220k
100
10V
2.2
0.01
0.01
0.01
100k
220k
10k
0.22
0.22
0.22
100
10V
10V
0.01
47p
47p
0.1
1k
1k
1k
2.2k
2.2k
22k
22k
220
220
220
47k
10k
100k
100k
2SD596
2P
0.01
470k
220k
220k
100k
100k
47k
47k
22k
22k
10k
PST600L-T
1SS119
100
20P
470
100
100
470
100
470
100
470
100
470
100
470
470k
10k
47k
2SC4081-T106
220k
220k
100k
47k
100k
47k
22k
22k
TOL-31CSGAKAA
-KS01
TOL-31CSGAKAA
-KS01
TOL-31CSGAKAA
-KS01
0
22k
10k
32.768KHz
22p
2.2
L402
100
µ
H
0
100p
0.01
22p
4.19MHz
2SC4081
-T106
1
470k
220k
A12-8BT
µ
PD789477GC-
10K
TOL-30BUGBKAA
-K51-U5S
TOL-30BUGBKAA
-K51-U5S
TOL-30BUGBKAA
-K51-U5S
TOL-30BUGBKAA
-K51-U5S
TOL-30BUGBKAA
-K51-U5S
TOL-30BUGBKAA
-K51-U5S
47k
22k
0.1
47k
0.1
0.1
470
4V
0.1
0.1
0.1
0.01
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
AA11
AA12
AA13
AA14
AA15
AA16
AA17
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
AA11
AA12
AA13
AA14
AA15
AA16
AA17
BB1
BB2
BB3
BB6
BB7
BB8
BB9
BB10
BB11
BB12
BB13
BB13
BB12
BB11
BB10
BB9
BB8
BB7
BB6
BB5
BB3
BB2
BB1
BB4
BB4
BB14
BB15
BB14
BB15
BB5
AA18
AA19
AA20
AA21
AA22
AA23
AA24
AA25
AA26
AA27
AA28
AA29
AA30
AA31
AA32
AA18
AA19
AA20
AA21
AA22
AA23
AA24
AA25
AA26
AA27
AA28
AA29
AA30
AA31
AA32
SEG27
SEG
26
SEG25
SEG
24
SEG
23
SEG
22
SEG
21
SEG
20
SEG19
SEG
18
SEG
17
SEG16
SEG
15
SEG
14
SEG
13
SEG
12
SEG
11
SEG
10
SEG9
S
EG8
SEG
7
SEG
6
SEG
5
SEG
4
SEG
3
SE
G2
CO
M
3
CO
M
2
CO
M
1
CO
M
0
SEG1
SEG0
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SE
G10
SEG
9
S
EG8
SEG
7
SEG
6
S
EG
5
S
EG
4
S
EG
3
SEG
2
CO
M
3
CO
M
2
CO
M
1
CO
M
0
S
EG
1
S
EG
0
FS
EQ
N
C
KEY0
KEY1
KE
Y2
KEY3
A
VSS
CD
O
N
AC
IN
W
R
Q
BU
ZZER
M
U
TE
BU
ZZER
LA
T CD
/R
AD
IO
D
ATA
C
D
/R
AD
IO
CLK C
D
/R
AD
IO
D
A
T
A-IN
C
D
DR
F
XR
S
T
R
AD
IO
O
N
PO
W
ER
O
N
AVDD
CD OPEN
VERSION
BUZZER LED
RADIO LED
CD LED
NAP LED
RESET
X2
X1
TX2
TX1
IC
BACK LIGHT 1
BACK LIGHT 0
NC
NC
NC
HP ON
HP SW
A MUT
V
LC0
V
LC
1
VLC2
N
C
N
C
LIQUID CRYSTAL DISPLAY
2
1
2
1
D604-609
(LCD BACK LIGHT)
5
4
3
2
1
PRESET TUNING,SELECT/PRESET
1
2
SNOOZE
DATE/SLEEP OFF
ALARM SET
BUZZER
S617
TIME SET
TUNE/
-
S618
TUNE/TIME SET
+
ALARM SET
S619
CD
S620
ALARM
MODE
ALARM SET
S621
RADIO
RADIO
BUZZER
CD
1
7
1
7
Q401-404
LED DRIVE
RESET SIGNAL
GENERATOR
V
G
RST
VSS0
VDD0
SYSTEM CONTROLLER
MUTING
D.S.T
SUMMER T.
CLOCK
CD PLAY
MODE
NAP
BRIGHTNESS
SLEEP
CD
RADIO
BAND
OFF
ALARM RESET
(Page 20)
•
See page 24 for Waveforms.
•
See page 26 for IC Pin Function Description.
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