Sharp CD-C421H Service Manual page 28

CD-C421H / C411H
A
1
2
3
4
B
23
20
27
28
24
25
26
22
21
29
C
D
E
MECHA_UP/DN
32
DISC_NO
31
CD_OPEN/CLOSE
30
D_GND
B
M_GND
A
TO MAIN PWB(3/3)
POWER_CONT
POWER AMP.
11
SECTION
P32 2-G
F
TO MAIN PWB(3/3)
+12V (MECHA)
POWER AMP.
4
SECTION
P32 2-D
MAIN PWB-A1(1/3)
G
SWM4
F.A.S
SOLM1
SOLENOID
SWM5
CAM
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
1
TO MAIN PWB(3/3)
POWER AMP.SECTION
P32 2-F
8
+5.6V
MAIN_SO
MAIN_SI
MAIN_SCK
MAIN_STB
R601
DRF
100K
PUIN
R603 1K
RWC
R605 1K
WRQ
R606 1K
SQOUT
R607 1K
COIN
R608 1K
CQCK
R609 1K
SL+
R610 1K
SL–
R611 1K
DSP_RES
REC/P.B.
R621
1 2 3 4 5 6 7 8 9
1K
REC MUTE
P95
80
R622
79 P96
1K
78 P97
77 P100
76 P101
75 P102
74 P103
R624
73 P104
1K
BIAS
72 P105
MAIN SYSTEM MICROCOMPUTER
GND
VLOAD
71
T1/T2
P106
70
R625
P107
69
12K
P110
68
T2 AFP
P111
67
R626 P112
66
1K
P113
65
64 63 62 61 60 59 58 57
R627
1K
R628
10K
BIAS
T1_T2
REC
REC/P.B
TAPE MECHANISM PWB-D
FWM1
2+
M
4 2
PHM1
MM1
RUN PALS
TAPE MOTOR
SENSOR
1 3
SWM3
F.P.
CNPM2
FWM2
2 3
Figure 28 SCHEMATIC DIAGRAM (2/11)
C602 150P
C603 150P
C604 150P
C605 150P
C606 150P
D602
1SS133
L601
100µH
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
P13 25
P12 26
P11
27
P10
28
AVDD
29
AVREF
30
P04/XT1
IC601 31
XT2
32
IX0225AW
VSS 33
X1 34
X2 35
P37 36
P36 37
P35
38
P34 39
P33
40
52 51 49 47 42
56 55 54 53 50 48 46 45 44 43 41
R637 1K
R640
10K
Q601
KTA1273Y
R642
D601
10K
1SS133
R644
1.2K
C609
47/16
R643
10K
Q602
2SB561 C
1 2 3 4 5 6 8
7
CNS601
MOTOR
1 1
2 2
3 3
GND
4 4
+B
5 5
T2 RUNPALS
6 6
7 7
FOOL PROOF
8 8
9 9
T1 RUNPALS
10 10
SOLENOID
11 11
MECHA STOP
12 12
CNPM1 CNSM1
4
– 28 –
TO DISPLAY PWB
P35 7-A
FW702
TO MAIN PWB(3/3)
POWER AMP.
SECTION
P32 2-F
1
10
9 8 7 6 5 4 3 2 1
D_GND
C601
0.022
+B
R623 1K
TACUM SW
XL601
4.19MHZ
+B
TAPE1
PLAYBACK
HEAD
R-CH
1
TAPE1_R
2
A_GND
3
TAPE1_L
L-CH
ERASE HEAD
1 M_GND
2 ERASE
3 TAPE2_R2
4 A_GND
R-CH
5 TAPE2_R1
6 TAPE2_L1
L-CH
7 TAPE2_L2
TAPE2
RECORD/
PLAYBACK HEAD
5
TO TUNER PWB
P37 9-G
CNS303
CNP303
2 3 4 5 6 7 8 9
10
R581
10K
C502
0.001
1
2
3
C501
0.001
C512
180P
1
2
3
4
5
6
7
6