Kenwood KRC-335 Service Manual page 10

S T
X14-
J3
(X16-1520-XX)
1
1/2
A
D13,14
ILLUMI
2
3
4
S6 S5
VOL+
S8 S7 S11
VOL-
S4 S3
5
S2 S1
TP19 TP18
6
(X16-1520-XX)
MODEL NAME UNIT No.
CAUTION:For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to, parts list). Indicates safety critical components. To reduce the risk
7
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.
U V
D15
BACK LIGHT
D1-12,20-22
KEY ILUUMI
TP11
S18 S9 S10 S26
6
SRC
TP12
S21
S12 S17 S24 S25
AUTO
ATT 5
FM
TP13
S13 S16 S22 S23 S27
1 4
AUD
TP14
S14 S15 S20 S28 S29
2 3
CLK
AM
TP17 TP16 TP15
D1-12,
C6,7 D13,14 D15
20-22
KRC-365 0-20 NO B30-1533-05 B30-1533-05 B30-1633-05
KRC-465 0-22 NO B30-1567-05 B30-1567-05 B30-1641-05
KRC-465W 0-20 NO B30-1533-05 B30-1533-05 B30-1633-05
KRC-335 0-21 YES B30-1533-05 B30-1564-05 B30-1633-05
KRC-565 0-21 YES B30-1533-05 B30-1564-05 B30-1633-05
W X
+5V
17
S17
17
18
18 S18
19
19 S19
20
S20
20
21
S21
21
22
22 S22
23
23 S23
LCD DRIVER
24
S24
24
25 IC1
S25
25
26
S26
26
27
27 S27
28
28 S28
29
S29 1.7V
29
0V
30
S30
30
31 5V
S31
31
0V
5V
32
32 S32 0V
5V
0V
KI1
KI2
TP5 TP6 TP7 TP8 TP9
KI3
KI4
*
ED1
IC1 : LC75853NE
IC2 : RS-171
R14,
ED1 Q1 : DTA114EUA
17
B38-1084-05 510
*
D1-12,20-22 :
B38-1098-05 510
*
D13,14 :
B38-1084-05 510
*
D15 :
B38-1084-05 360
D17,18 : MA3062WA
B38-1084-05 360
D19 : MA3062-M
DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations
between individual instruments or/and units.
Y Z
5V
0V
D18 D17
TP24
64
L-DATAS
64
63
L-CLK
63
62
L-CE
62
61
L-DATAL 61
60 C1
OSC
1000P
59
VSS
0V
58 C2 0.047
VDD1
1.7V
57 C3 0.047
TP31
VDD2
3.3V
R4
4.7
56
VDD +B
5.0V
55
TEST
0V
54
KI5
S19
TP4
53
KI4 KI4
TP3
52
KI3 KI3
TP2
51
KI2
KI2
TP1
50
KI1 KI1
49
KS6
IC2
Q1
GND LINE
B LINE
+B
KRC-335/365/465/465W/565
AA
J1
TP21
1 ILL-GND
TP22
2 D-GND
3 NC
+5V 4 SW 5V
5 LAMP+B
TP26
+5V 6 LED+B
TP27
R6
470
64 7
L-DATAS
TP28
R7
470
63 8 L-CLOCK
TP29
R8
470
62 9 L-CE
TP30
R9
470
61 10 L-DATAL
+5V 11
PANEL 5V
RST
TP32
12 RESET
TP33
R10
1K
13 REMO
14 PANEL SW
TP35
15 ESD-GND
REMOTE
SENSOR