Sharp CD-EA235V Service Manual page 19

20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
VDD
-20dBATT
DSA_STB
T-BIAS
T_T1/T2
REC/PLAY
CD RESOUT
WRQ
SPAN
RESET
VPP/IC
DRF
IC701
VDD
CD CLK
IX0554AW
CD DI
SYSTEM
CD DO
MICROCOMPUTER
CD CE
CLK
R
V_ONLY DO
AVSS
TCH
DISC_NO SW/
DSA DATA
T2_PLAY SW/
FPA/FPB SW
PROTECT
LVL_DET
46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
+B
R765
R756
4.7K 4.7K
R761
10K
LED701
R768
304VT2E1
10K
R767
10K
R766
10K
7
R795
1.5
C701
1/50
L701
100
100µH
+B
1
R763 1K
2
100
R701
3
1K
R702
4
1K
R703
5
R704 1K
6
R705 1K
7
R706 1K
8
R707 1K
9
1K
R708
10
C704
15P
X2 11
XL701
C705
X1 12
18P
4.19 MHz
13
14
1K
R769
15
+B
16
R709
1K
17
R710 1K
18
R711
1K
19
R712
1K
20
R713
1K
CE
21
R714
1K
22
R715
1K
DI
23
R716
1K
24
25
R717 100
26
R737 100
27
R739 1K
28
29
30
C720
0.022
31
+B
+B 5V BACK UP
R773
10K
+B
KEY 2
KEY 1
KEY 0
8
Figure 19 SCHEMATIC DIAGRAM (8/13)
+B
+B
RD19 RD20
680 820
SW721 SW722
X-BASS/ EQUALIZER
DEMO
RD10 RD11
680 820
SW711 SW712
CD TUNER
RD01 RD02
680 820
SW701 SW702
ON/
MEMORY/
STAND-BY SET
9 10
– 19 –
DISPLAY PWB-A2
MPEG_POWER
DSA_STB
DISC_NO SW
O/C_SW
CLAMP SW
RES OUT
CD CLK
CD DI
CD DO
CD CE
DRF
WRQ(DSP)
+B
VF2
-VF
P_IN
VF1
UNSW5.6
+B
D713
DS1SS133
D714
DS1SS133
+B
RESET
REMOTE SENSOR
Q709
KRC102 M
2
3
1
RD22
RD21 RD23
1K 1.5K
2.2K
SW723 SW724 SW725 SW726
OPEN/ DISC VOLUME
VOLUME
CLOSE SKIP UP
DOWN
RD12 RD13 RD14 RD15 RD16
1K 1.5K 2.2K 2.7K 3.9K
SW713 SW714 SW715 SW716 SW717
VIDEO/ TAPE STOP PLAY FAST
AUX FORWARD
RD03 RD04 RD05 RD06
RD07
1K 1.5K 2.2K 2.7K
3.9K
SW707
SW703 SW704 SW705 SW706
REC/
TUNING TUNING TIMER/ CLOCK
PAUSE
DOWN UP SLEEP
11
CD-EA235V
13 12
12 11
11 10
10 9
9 8
8
7
6
7
6 5
5 4
4 3
3 2
1 1
BI701
CNS701
WF701
WTM701
1
1
CNP802
TO
POWER PWB
P17 7-H
6
6
+B
+B
RX701
+B
GP1UM271
1 2 3
RD17 RD18
5.6K 10K
SW718 SW719 SW720
FAST REVERSE
REVERSE
REWIND PLAY MODE
RD08 RD09
5.6K 10K
SW708 SW709 SW710
P.B.C OSD DIGEST
12