Sharp CD-C449W Service Manual page 30

CD-C449W/K449W
A
TAPE MECHANISM ASSEMBLY
B
FWM2
MOTOR
M
MM1
SWM3
REC FWD
SWM6
CAM SW
SWM5
F.A.S
C
SOLM1
SOL
SWM4
REC RVS
D
TAPE1
PLAYBACK HEAD
L-CH
3
2
1
E
R-CH CNSK01
TAPE2
RECORD/
PLAYBACK HEAD
7
1 6
2 5
F
3 4
4 3
5 2
6 1
ERASE
HEAD
TAPE2 HEAD
PWB-G
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.
1
TAPE MICHANISM PWB–H
L
H
+
VRM1 RM1
2 3.3K(B) 2.7K
L
H
MOT+B
REC FWD
CAM SW
M2GND
F.A.S
RUN PULSE
PHM1
+B
SOL
10
REC RVS
11
12
13
CK01
680P
3
2
1
CK02
CNPK01
680P
0V RK03
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
QK09
KTA1266GR
2
Figure 28 SCHEMATIC DIAGRAM (7/15)
PLAYBACK SIGNAL
RECORD SIGNAL
FWM1
WTL11
1
MOT L
1 1
MOT H
2 2
MOT +B
3 3
T2 A-FP
4
4
CUM SW 5
5
6 M2GND
6
T1 RUN-SW
7 7
T2 PH-OUT
8 8
9 +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
9.1V 9.2V
RK13
CK09
1
1 0V
0V
10K
0.022
0V
2 3 3
REC 0V 3.9V
RK14
QK10 QK11
10K
KRC104M
KRC104M
3 4
– 28 –
QL11
KTA1266 GR
0.26V 0.26V
RL11
33K
0V
RL12
2.2K
RL13
6.8K
0.26V 0.26V
RL14
33K
0V
QL14
QL12
KTA1266 GR KTA1273 Y
0.26V
CL12
12.6V
47/16
QL15
KTA1271 Y
0V
12.6V
RL20
1.2K
DL14
1SS133
DGND
KRC104 M
0V 3
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 0.5V
330P
1 2 3
112K
–
+
HIGH=T1
+
-
112K
24 23 22
0V 0V 0.6V
CK22
RK18
1/50
1K
CK12
CK14
330P
330P
CK18 CK20
CK16
0.033 560P
47/16
RK22 RK24
RK20
100K 3.9K
56
QK14
KRC104 M
PB EQ CrO2
3
0V
CK60 RK69
RK15
100/16 220
4.7K
2
0V
5
QL17
KRC104 M
2 3
0V 4V
1 0V
QL13
KRC104 M
2 3
0V 3.8V
0V
1
12.6V
QL18
KRC104 M
RL15 RL16
10K
2.2K
2 3
0V
12.5V
RL17
1
0V
10(1/2W)
12.6V
RL18 RL19
2.2K
10K
RK33
22K
QK13
2
RK47
RK34
0V
10K
68K
RK27
1
0V 8.2K
RK31
RK25
33K
5.6K
CK23
0.1
CK25 RK37
0.0082 6.8K
CK31
470P
RK29
CK33
10K
22/25
3.2V 0V 0.8V 0V
4
5 19 7
HIGH=CHROM
21 20 6
18
3.0V 0V 1.3V 0V
CK34
RK30
22/25
10K
RK38
CK26
6.8K
0.0082
CK32
CK27 CK28
470P
0.022
3.3/25
RK26
5.6K
CK24
0.1
RK32 RK36 CK30
0V 1
RK28
33K 3.3K 470P
8.2K
2
0V
6