Sharp CD-E99 Service Manual - Page 19

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Sharp CD-E99 Service Manual
18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
87 88 89 90 91 92 93 94 95 96 97
98
99
100
VDD
1
–20dBATT
2
DSA_STB
3
T-BIAS
4
T_T1/T2
5
REC/PLAY
6
CD RESOUT
7
WRQ
8
SPAN
9
RESET
10
X2
11
X1
12
VPP/IC
13
XT2
14
R769
IC701
DRF
15
IX0553AW
VDD
16
EM MICROCOMPUTER
CD CLK
17
CD DI
18
CD DO
19
CD CE
20
CE
21
33
KEY 0
CLK
22
32
KEY 1
DI
23
31
KEY 2
DO
24
Y
AVSS
25
DISC_NO SW/
26
DSA DATA
TUN SM
27
DSA_ACK
T2_PLAY SW/
28
FPA/FPB SW
29
PROTECT
LVL_DET
30
37 36 35 34 33
44 43 42 41 40 39 38
32 31
+B
+B
R761
10K
LED701
R768
304VT2E1
10K
R767
10K
R766
10K
7
2
1
R795
1.5
C701
1/50
C702
220/10
+B
R763
1K
R702
1K
R703
1K
R704
1K
R705
1K
R706
1K
R708
1K
C704
15P
C721
0.022
C705
18P
XL701
4.194304 MHz
1K
+B
R709
1K
R710
1K
R711
1K
R712
1K
R713
1K
R714
1K
R715
1K
R716
1K
R717
100
R739
1K
R791
4.7K
C720
0.022
+B
R722
R759
1K
5.6K
R773
10K
+B
+B
KEY 2
KEY 1
KEY 0
8
Figure 19 SCHEMATIC DIAGRAM (8/10)
5V BACK UP
RD19
RD20
RD21
680
820
1K
SW721
SW723
SW724
SW722
X-BASS/
OPEN/
EQUALIZER
DEMO
CLOSE
RD10
RD11
RD12
RD13
680
820
1K
SW712
SW713
SW714
SW711
CD
TUNER
TAPE
VIDEO/
(BAND)
AUX
RD02
RD01
RD03
RD04
680
820
1K
1.5K
SW701
SW702
SW703
SW704
MEMORY/
POWER
REC
TUNING/
SET
PAUSE
TIME DOWN
9
10
– 19 –
DISPLAY PWB-A2
+B
DISC NO
O/C_SW
CLAMP SW
RES OUT
CD CLK
WRQ(DSP)
UNSW5.6
+B
AC RELAY
+B
+B
L701
D713
100 µH
DS1SS133
REMOTE
SENSOR
D714
RX701
DS1SS133
GPUM271
RESET
R781
Q709
47K
KRC102 M
2
3
1
2
3
C715
1
0.01
DISC
SKIP
RD14
RD15
RD16
1.5K
2.2K
2.7K
3.9K
SW715
SW716
SW717
SW718
STOP
PLAY/
FAST
FAST
REWIND/
REPEAT
FORWARD/
PRESET UP
PRESET DOWN
RD05
RD06
2.2K
2.7K
SW705
SW706
SW707
TIMER/
CLOCK
TUNING/
SLEEP
TIME UP
11
CD-E99
11
10
10
9
9
8
8
7
6
7
CD DI
6
5
CD DO
5
4
CD CE
4
3
DRF
3
2
1
1
CNS701
BI701
WTM701
FW701
1
VF2
–VF
P_IN
VF1
CTR
6
+B
R783
100
C717
47/25
12