Sharp CD-K477W Service Manual page 28

CD-K477W
A
TAPE MECHANISM ASSEMBLY
FWM2
TAPE
M
MOTOR
MM1
B
SWM3
REC FWD
SWM6
CAM SW
SWM5
F.A.S
SOLM1
SOL
SWM4
REC RVS
C
D
TAPE1
PLAYBACK HEAD
L-CH
3
2
1
CNSK01
R-CH
E
TAPE2
RECORD/
PLAYBACK HEAD
7
1 6
2 5
3 4
4
3
5 2
6 1
ERASE
HEAD
TAPE2 HEAD
PWB
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.
1
TAPE MICHANISM PWB–H
L
H
+
VRM1 RM1
2 3.3K(B) 2.7K
L
1
H
2
MOT+B
3
REC FWD
4
CAM SW
5
M2GND
6
F.A.S
7
RUN PULSE
8
PHM1
+B
9
SOL
10
REC RVS
11
12
13
CK01
680P
3
2
1
CK02
CNPK01
680P
RK03
0V
2.2K
QK03
2SC1845 F
0.7V
0V
0.7V
QK05
2SC1845 F
RK05
0V 3.3K
RK11
15K
7
6
5
4
3
RK12
2
CK05 CK06
15K
330P 330P
1
0V
RK89 RK90 0.7V
1K 1K
QK06
RK06
2SC1845 F
3.3K
0V
0.7V
QK04 RK04
2SC1845 F 0V
2.2K
REC
8.7V
QK09
KTA1266 GR
2
Figure 28 SCHEMATIC DIAGRAM (7/18)
PLAYBACK SIGNAL
RECORD SIGNAL
FWM1 WTL11
1
MOT L
1
MOT H 2
MOT +B 3
T2 A-FP
4
CUM SW
5
M2GND 6
T1 RUN-SW
7
T2 PH-OUT
8
+B 9
SOL
10
T2 B-FP
11
12
13
13
DL13
1SS133
RK01
1K
RK02
1K
QK07
KTC3199 GR
0V
CK07
0.001
0V
RK09
0V
4.7K
RK07
47K
RK08
0V
47K
CK08
0.001
0V
RK10
0V
4.7K
QK08
KTC3199 GR
REC
8.7V
RK13
CK09
1
1 0V
10K 0V
0.022
8.0V
2 3 3 2
REC 0V 3.8V
0V
RK14
QK10
QK11
10K
KRC104 M KRC104 M
3 4
– 28 –
QL11
KTA1266 GR
0V
0V
RL11
33K
0V
RL12
2.2K
RL13
6.8K
0V
0V RL14
33K
0V
QL12 QL14
KTA1266 GR KTA1273 Y
12V
0V
RL15
CL12 0V
47/16
QL15
KTA1271 Y
12V
0V
12V
RL20
1.2K
DL14
1SS133
DGND
QK13
KRC104 M
3
1
RK19
RK21 RK23
56
100K 3.9K
CK15
CK19
CK17
47/16
0.033 560P
CK11
330P
RK17
CK21
1K
1/50
0V 0V CK13 0.6V
330P
1 2 3 4
112K
–
+
HIGH=T1
+
-
112K
24 23 22 21
0V 0V 0.6V 3.0V
CK22
RK18
1/50
1K
CK12
CK14
330P
330P
CK18 CK20
CK16
0.033 560P
47/16
RK22 RK24
RK20
3.9K
56 100K
QK14
1
KRC104 M
3
CK60 RK69
RK15
100/16 220
4.7K
5
QL17
KRC104M
2 3
0V 4V
1 0V
QL13
KRC104 M
2 3
0V 4V
1 0V
QL18
KRC104 M
RL16
10K 2.2K
2 3
0V
12V
RL17
1
0V
10(1/2W)
RL19
RL18
10K 2.2K
RK33
22K
2
RK47
RK34
10K
68K CK10
RK27
47/25
8.2K
RK31
RK25
33K
CK35
5.6K
0.022
CK23
0.1
RK39
560
CK25 RK37
0.0082 6.8K
CK31
270P
LK01
1.8mH
RK29
CK33
10K
22/25
3.0V 1.3V 0.6V
0V 0V
8
5 19 7
–
5
+
HIGH=CHROME
PLAY
+
–
5
20 6 18 17
0V 1.3V 0V 0.6V
CK34
RK30
22/25
10K
LK02
1.8mH
RK38
CK26
6.8K
0.0082
CK32
CK27 CK28
270P
0.022 3.3/25
RK40
RK26 560
5.6K
CK36
CK24
0.022
0.1
RK32 RK36 CK30
RK28
33K 3.3K 470P
8.2K
2
6