Kenwood GX-401EF2 Service Manual page 16

AE
(X25-9382-70) (A/2)
1
CN1
9.8V
LAMP-10V 20
LAMP-GND 19
FDC+ 18
FL +B 17
X14-
FDC- 16
CN81
FL-GND 15
1/2
D-GND 14
D-GND 13
A
2
RESET 12
BU 5V 11
SC-REQ 10 47
SC-DATA 9 19
MC-DATA 8 18
MC-CLK 7 20
SC-CON 6 43
SC-BUSY 5 21
MC-REQ 4 44
NC 3
NC 2
3
DSI 1
4
5
6
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 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.
7
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual
instruments or/and units
AF
ED1
D4
Q2
17
R31
VFD CLK
470
18
18 MC DATA
R30
470
19
19 SC DATA
R32 470
20
20 MC CLK
R34
470
0V 21
21 SC BUSY
22
NC
5.0V
23
NC
W2
5.0V 24
AVDD
25
AVSS
R21
22K
26
26 ENC UP
R14
22K
27
27 ENC DOWN
28
NC
29
NC
30
NC
31
NC
32
NC
S42
CD EJ 5
S11 S5
S41
DISP 4
S12 S4
1 SCN 3
S1 S13 S3
CS EJ MUTE 2
S15 S14 S2
AG
C3
0.1
4.4V
5.0V
Q3
Q1
R6
1K
10K
10K
17
5.0V
5V
0V
5V
5V 5V
0V
0V 0V
5V
5V
0V
0V
IC1
5V
0V
5V
0V
12MHz
5.0V 0V/5.0V
R40
100K
X1
8.388MHz
VOL
26
27
POWER T.I
S18
NEWS CD
S16 S19
D6
TONE BAND
S17 S20
D7
6 TAPE
S6 S21
AH AI
64
NC
63
NC
62
NC
61
NC
60
NC
59
NC
58
NC
57
NC
56
NC
55
NC
54
NC
53
NC
0V/5.0V
52
NC
51
4.2V
0V/ VFD ON
0V
50
KR4
49
KR3
4.2V
0V/
0V
GX-401EF2 (2/2)
IC1 : 780021AGC-106
Q1 : DTC114EK or
UN2211
:
Q2 UMC2N
:
Q3 DTC114YUA or
UN5214
KS0
D1,2 : 1SR154-400
KS1
D3 : B30-1417-05
D4 : DAN202K
D5,9 : MA3056-M
D6,7 : DA227
KS2
KS3 SIGNAL LINE
B LINE