Sharp CD-DVD500 Service Manual page 33

38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
52 KARAOKE_LATCH
46
TUNER_FUNC/CD_RES_OUT
MOT_SPEED_CNT
45
IC701
IX0442AW
SYSTEM MICROCOMPUTER
7 8 9 10
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
C707 0.022
RD88 10K
+B
768 10K
R792
10K
C708
0.022
R794
RD89
100K
10K
RD32
1K
C719 0.022
+B
C720 47/16
C702
BU2092F
NPUT/
OUTPUT
EXPANDER
RD76
10K
RD45 100
RD44 100
RD75
10K
+B
3 4 5 6 7 8 9
IC705
TA7291S
12
1
7
56 57 58
LED709
4204SRT7
TIMER
R741 1K
T1_RUN
50
R740 1K
LCK1
49
R739 1K
LCK2
48
R738 1K
SP_DET 47
R737 1K
46
R736 1K
45
R735 1K
CD_CLAMP_SW
44
R734 1K
T2_RUN
43
R733 1K
RESET
42
VDD0
41
VSS0
40
R732 1K
DD_STATUS
39
R731 1K
DD_LOCK
38
R730 100
DD_CS
37
R729 100
DD_LP
36
R728 1K
DD_ACK
35
R727 1K
DD_DI
34
R726 100
DD_DO
33
DD_CLK
32
DO
31
R725
100
R724
1K
RD90
3.3K
KEY0
KEY1
SW714
DIMMER
KEY2
POWER
BI703
9 8 7 6 5 4 3 2 1
11 10
2 3 4 5 6 7 8 9 CNS703
10 11 12
TO DVD SERVO PWB
CP3202
P29 12-C
8
Figure 33 SCHEMATIC DIAGRAM (6/18)
R778
10K
+B
LCK1
R777
10K
LCK2
RD94 10K
SP_DET
TUN_FNC RD93 10K
MOT_CNT RD92 10K
R773 10K
R772
10K
RESET +B
+B
DD_ST
DD_LOCK
RD87
3.3K
DD_CS
DD_LP
DD_ACK
RD86
3.3K
R798 10K
+B
RD91 +B
3.3K
2
1
3
B
A
+B
+B
RD20 RD21 RD22 RD23 RD24
680 820 1K 1.5K 2.2K
SW722 SW723 SW724 SW725 SW726
CD TUNING FAST
TAPE MEMORY
DOWN SET REWIND FORWARD
RD13 RD14
680 820
SW716
EQUALIZER
SW715
X_BASS
RD01 RD02 RD03 RD04 RD05
680 820 1K 1.5K 2.2K
SW701
SW702 SW703 SW704 SW705
CLOCK TIMER BYPASS NORMAL
PHANTOM
9 10
– 33 –
+B +B
PLAY
-
TAPE
M
MOTOR
+
SOLENOID
F. PLAY
SOLENOID
CASSETTE
TAPE MECHANISM
R775
10K
SOLA/SOLB
Q710
KTA1273 Y C712
47/25
C709
0.022
T_MOT
R774
4.7K
T1_SOL
Q708
T2_SOL
KTA1271 Y
C711
0.001
C710
0.001
+B
RD26 RD27 RD28 RD29
RD25
2.7K 3.9K 5.6K 10K 15K
SW731
SW727 SW728 SW729 SW732
FAST STOP PLAY REC/ TUNING
PAUSE
RD07
RD06 RD08 RD09 RD10
2.7K 3.9K 5.6K 10K 18K
SW708 SW709 SW710
SW707
SW706
DISC 1 DISC 2 DISC 3
VIRTUAL
11
CD-DVD500
8
7
6
5
4
3
2
1
PH
PWB-F
FFC702
1
R_REC
1
T1 RUN
2
F_REC
3
4
+MTR
5
T2 RUN
6
GND
7
T2 PLAY
8
8
RD30 RD31
33K 100K
SW733 SW734
VIDEO TUNER
UP
SW712
RD11
OPEN/
33K
CLOSE
SW711
DISC
SKIP
12