Sharp CD-E700 Service Manual page 25

8 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3
7 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
4.194304 MHz
XT2 14
R769
IC701
DRF
15
IX0553AW
VDD 16
M MICROCOMPUTER
CD CLK 17
CD DI
18
CD DO 19
CD CE 20
CE
21
KEY 0
33
CLK
22
32 KEY 1
DI
23
31
KEY 2
DO
24
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
4 43 42 41 40 39 38 37 36 35 34 33 32 31
+B
R761
10K
LED701
R768
304VT2E1
10K
R767
10K
R766
10K
7
2 1
R795
1.5
C701
1/50
C702
220/10
R763 1K
R702 1K
R703 1K
R704 1K
R705 1K
R706 1K
R708
1K
C704
15P
C721
0.022
C705
18P
XL701
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 25 SCHEMATIC DIAGRAM (8/10)
5V BACK UP
RD21
RD19 RD20
680 820 1K
SW723
SW721 SW722
X-BASS/ OPEN/
EQUALIZER
DEMO CLOSE
RD10
RD11 RD12
680 820 1K
SW712 SW713
SW711
TUNER
CD VIDEO/
AUX
RD02 RD03
RD01
680 820 1K
SW702
SW701 SW703
MEMORY
POWER REC
SET
PAUSE
9 10
– 25 –
DISPLAY PWB-A2
+B
+B
L701
D713
100 µH
DS1SS133
D714
DS1SS133
+B
RESET
R781
Q709
47K
KRC102 M
2 3
1 2 3
C715
1
0.01
SW724
DISC
SKIP
RD14
RD13 RD15 RD16
1.5K 2.2K
2.7K 3.9K
SW714 SW715 SW716 SW717 SW718
TAPE STOP PLAY FAST FAST
FORWARD REWIND
RD04 RD05 RD06
1.5K 2.2K 2.7K
SW706
SW704 SW705 SW707
TUNING TIMER/ CLOCK
TUNING
DOWN
UP SLEEP
11
CD-E700/CD-E77
DISC NO
10
11
O/C_SW
10 9
CLAMP SW
9 8
RES OUT
8 7
CD CLK
6
7
CD DI
CNP6
6 5
CD DO TO
5 4
CD SERVO PWB
CD CE
P27 12-B
4
3
DRF
3 2
2
WRQ(DSP)
1
1
CNS701
BI701
FW701
WTM701
VF2
1
–VF
P_IN
VF1
UNSW5.6
6
AC RELAY
CTR
CNP802
TO
POWER PWB
P23 7-G
R783
100
C717
47/25
12