Sharp CD-ES770 Service Manual page 9

FL701
FL DISPLAY
8 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
2 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
D
T_REC/PLAY
CD_RESOUT
3),S17
2),S18
1),S19
0),S20
IC701
IXA020AW
SYSTEM
MICROCOMPUTER
SW
LED
P SW
_SW
T_RUN PULS
SW1 TUN_SM(SPAN)
SW2
9 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
+B
R761
10K
R768
LED701
10K
304VT2H3
OG701
OLUME
R767
10K
R766
10K
7
R795
1.5
C701
1/50
+B
1
VDD
R763 1K
2
-20dBATT
R701 1K
T_BIAS 3
R702 1K
4
R703 1K
T_T1/T2
5
R704 1K
6
R705
1K
CD_WRQ
7
8
R708
9
1K
C704
RESET
10
15P(CH)
XOUT
11
C705
XIN
12
18P(CH)
XL701
VPP/IC
13
4.19 MHz
14
R769
1K
CD_DRF 15
+B
VDD 16
R709 1K
CLK
17
R710 1K
DI 18
R711 1K
19
DO
R712 1K
CE 20
R713 1K
CD_CE 21
R714 1K
CD_CLK 22
R715 1K
CD_DI 23
R716 1K
24
CD_DO
AVSS 25
R717
26
1K
R739
R759
27
1K 5.6K
T_FP SW 28
29
PROTECT
C720
VOL_JOG 30
0.022
R773
10K
+B
+B
KEY 2
KEY 1
KEY 0
8
Figure 9 SCHEMATIC DIAGRAM (7/7)
3
1
Q713
2
KRC104 S
R573
10K
+B
R791
10K
L701
100 µH
RD23 RD24 RD25 RD26
680 820 1K 1.5K
SW725 SW726 SW727 SW728
PLAY/
STOP REC/ MEMORY/
REPEAT
PAUSE SET
RD11 RD12 RD13 RD14
680 820 1K 1.5K
SW712 SW713 SW714 SW715
TUNER CD TAPE
GAME/
(BAND) VIDEO
RD01 RD02 RD03
680 820 1K
SW701 SW702 SW703
CLOCK/
TUNING
POWER TIMER TUNING
UP
ON/STAND-BY DOWN
9 10
– 9 –
CD_RESOUT
CD_WRQ
CD_DRF
CD DO
CD DI
CD CLK
CD CE
DISC SW
CLAMP SW
TRAY SW1
TRAY SW2
PHOTO
GND
+5V
+B
WTM705
VF2
P_IN
VF1
UNSW5.6
AC RELAY
CTR
+B
+B
5V BACK UP
D713
1N4148H
D714
1N4148H
RESET
REMOTE SENSOR
R781 Q709
KRC102 S
47K
2 3
C715
1
0.01
RD27 RD28 RD29 RD30 RD31
2.2K 2.7K 3.9K 5.6K 10K
SW729 SW730 SW731 SW732 SW733
OPEN/
DIRECT
DISC 4 DISC 5 DISC 3
DISC 2
CLOSE PLAY
SW716
X-BASS/
DEMO
RD04 RD05 RD06
1.5K 2.2K 2.7K
SW704 SW705 SW706 SW707
FAST REWIND/ EQUALIZER FAST FORAWRD/
PRESET UP
PRESET DOWN
11
CD-ES770
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14
CNP704
FFC704
FW705
1
-VF
6
RX701
R783
100
1 2 3
C717
47/25
RD32
15K
SW734 SW735
DISC 1
12