Kenwood KRC-19A, Service Manual

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P Q S U W R T V X Y
2
1
3
5
7
4
6
KRC-19A/G,289
0V
5V
5.0V
3.3V
1.7V
5V
3.3V
0V
5V
0V
5V
1.7V
3.3V
5V
0V
0V
5V
0V
5V
5V
10.2V
5.0V
0V
B LINE
12
11
10
9
8
7
6
5
4
3
2
1
PANEL SW
L DATA S
L CLK
L CE
L DATA L
N.C.
u-GND
PAN 5V
RST
ILL-GND
ILL+B
ESD-GND
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
24
23
22
21
20
19
18
17
31
30
29
28
27
26
25
1
2 3 4 5 6 7 8 9
10
11
12 13 14 15 16
50
51
52
53
54
56
57
58
59
60
61
62
63
64
KS5 KS4
KS3
KS2
KS1
COM3 COM2
COM1
S40
S39 S38
S37
S36 S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
KEY S4 S5 S6 S7 S8 S9 S10 S1
1
S12 S13 S14 S15 S16
KI1
KI2
KI3
KI4
KI5
VDD
VDD2
VDD1
VSS
OSC
DATA L
CE
CLK
DATA S
KI1
KI2
KI4
KI3
C4 0.047
C5 1000P
∗
C6 0.01
C1 0.047
R19 56K
C2 0.01
R8 4.7
R18 1K
63
64
62
61
62
61
63
R11 100
R13 100
R14 100
R12 100
64
25
12 13 14 15 16
26
27
28
29
30
31
32
18
19
20
21
22
23
24
17
CO3 CO2 CO1
37 36 35 34 33
PL1 PL2
13
13
R21
∗
R6
470
R5
330
R4
R3
330
R1
470
R2
330
KS1
KS2
KS3
KS4
KS5
KI4 KI3 KI2
KI1
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S16
S15
S14
S13
S12
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
COM3
COM2
COM1
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
12
13
14
15
16
R20
S2 S3
32
KS1
KS2 KS3 KS4 KS5
49
Q1
KS6
55
TEST
J1
Q1
2
1
CLK ATT
AM
6
5
VOL+
FM AUDIO
D17 : MA3062-M
D1-13
Q1 : DTA114EK or
UN2111
IC1 : LC75853NE
J3
X14-
1/2
GND LINE
AUTO VOL-
T.UP
4 3
T.DOWN
SRC
∗
ED1 (COMMON)
RST
∗
D1
∗
D4
∗
D6
∗
D5
∗
D8
∗
D7
∗
D9
∗
D11
∗
D12
∗
D13
∗
D14
∗
D15
∗
D10
∗
D2
∗
D3
D17
:
∗
:
∗
D14
:
∗
:
∗
ED1
KEY-MATRIX
PERMISSION
SW
LCD DRIVER
WITH
KEY-MATRIX
D15
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S16
S15
S14
S13
S12
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
S19
S18
S17
COM3
COM2
COM1
CO3
CO2
CO1
∗
ED1 (SEGMENT)
IC1
SWITCH UNIT (X13-965x-xx)
KRC-19A/19G/289 (2/2)
A
10K
10K
2-72
MODEL NAME
KRC-289
UNIT NO.
0-22
B38-1068-05
KRC-19G
KRC-19A
ED1
B38-1022-05
B38-1022-05
360
R6
470
470
2-73
(X13-965x-xx)
YES
C6
NO
NO
B30-1565-05
D1-13
B30-1566-05
B30-1565-05
B30-2025-05
D14 D15
B30-1511-05
B30-2025-05
B30-1564-05
B30-1566-05
B30-1565-05
CAUTION: For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to parts list). indicates safety critical components. For continued
protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of
electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are
acceptably insulated from the supply circuit) before the appliance is returned to the customer.
Manufacture under license from Dolby Laboratories.
"Dolby" and the double-D symbol are trademarks of
Dolby Laboratories.
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299