Sharp CD-BK1600V Service Manual page 25

3 12 11 10 9 8 7 6 3 2 1
89 90 91 92 93 94 95 96 97 98 99 100
1
NO USE 2
VDD 1
R677 1K
S-BUSY 3
R678 1K
T-BIAS
4
R679 1K
T_T1/T2
5
R680 1K
REC/PLAY
6
R681 1K
RES OUT 7
R682 1K
DRF
8
R683 1K
WRQ
9
R684 1K
RESET 10
11
X2
C701
X1 12
XL701
331AW
13
VPP/IC
4.1943MHz
YSTEM
14
XT2
R685 1K
15
CD INT
COMPUTER
16
VDD
R686 1K
17
CD CLK
R687 1K
18
CD DI
R688 1K
19
CD DO
R689 1K
20
CD CE
R690 1K
CE
21
R691 1K
CLK
22
31 KEY0
R692 1K
DI
23
32
KEY1
R693 1K
DO
24
CONT 33 KEY2
AVSS 25
R694 1K
M-BUSY/TUN SM
26
NO USE
27
SPEANA2
28
SPEANA1
29
SPEANA0 30
42 41 40 39 38 37 36 35 34 33 32 31
R676
4.7K
R666
1K
LED722
R670
10K
R671
10K
R672
10K
7
C622
15P
C623
18P
R708
10K
8 9
Figure 25 SCHEMATIC DIAGRAM (6/12)
L601
100µH
5V BACK UP
D617
DS1SS133
C628
3.3/50
2 3
Q609
1
KRC102 M
R697 R699 R703 R706 R709 R712
680 820 1K 1.5K 2.2K 2.7K
SW619
SW616 SW617 SW618 SW620 SW621
MEMORY/
CD TAPE TUNING/ REWIND FAST
SET
TIME FORWARD
DOWN
R695 R698 R701 R707 R726
680 820 1K 1.5K 180K
SW611 SW612 SW613
SW614 SW615
DIMMER X-BASS EQUA-
VOLUME VOLUME
REVERSE
LIZER
UP DOWN
R696 R700 R702 R705 R710
680 820 1K 1.5K 2.2K
SW606
SW604
SW601 SW602 SW603 SW605
OSD
AUDIO
ON/ CLOCK TIMER PBC
ON/OFF
KARAOKE
STAND-BY SLEEP
10
– 25 –
CD-BK1600V/1800V/190V
CNS701
BI701
CD INT
1
WRQ(DSP)
2
DRF
3
CD CE
4
CD DO
5
CD DI
6
CD CLK
7
RES OUT
8
CLAMP SW
9
10
S_BUSY
11
M_BUSY
12
MIC IN
27
KARAOKE LATCH
26
SPAN
25
SW OUT
24
TUN SM
23
CE
22
DO
21
DI
20
CLK
19
T_BIAS
18
T_T1/T2
17
REC/PLAY
16
SPA_SIG
15
SMUTE
14
VF1
13
-VP
12
VF2
11
SP_RLY
10
M_10V
9
-15V
8
D_GND
7
+5V
6
A_GND
5
UN_SW 5V
4
AC_RLY CONT
3
SP_DET
2
M_GND
1
CNP702
R716
4.7K
D620
IC704
DS1SS133
KIA7042P
RESET
D621
DS1SS133
RX701
3 1
N63H380A
2 REMOTE SENSOR
R723
100
1 2 3
C632
C631
47/25
0.022
R714 R718 R719 R721 R722 R724
3.9K 5.6K 10K 18K 33K 100K
SW622 SW623 SW624 SW625 SW627
SW626
PLAY/ STOP REVERSE REC VIDEO
TUNING/
REPEAT PLAY
TIME
UP
SW629
R713 R715 R717 R720
2.7K 3.9K 68K 100K
SW607 SW608 SW610
SW609
DIGEST BOOK OPEN/
DISC
MARK CLOSE
SKIP
11
1
2
3 P23 12-E
TO
4
CD VIDEO PWB
5
6
CNP12
7
8
9
10
11
12
FC701
27
P27 12-D
CNP401
TO MAIN PWB
1
SW628
TUNER
AUX (BAND)
12