Sharp CD-BK260V Service Manual page 29

AY
31 30 29 28 27 26 25 24 23 16 15 14 13 12 11 10 9 8 7 6
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
VLOAD
DSA_STB
P11
T-BIAS
P12
T_T1/T2
P13
IC701
REC/PLAY
P14
IX0411AW RES OUT
P15
P16
SYSTEM
P17
MICROCOMPUTER
P18 RESET
P19/DIST0
P20/DIST1
Vpp/IC
P21/DIST2
P22/DIST3
ESS_DO
ESS_DI
ESS_STB CD CLK
ESS_ACK
MPEG_POW CD DO
KARAOKE LATCH CD CE
NO USE
DISTOUT/SW OUT
LCK 0
MIC SW
FPB
O/C SW/
FPA
DSA DATA
TUN SM
PLAY SW_B
DSA_ACK
NO USE SPEANA2
CD CLAMP
SW
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
N
+B
34
K
R732
1K
R761
10K
+B
+B
+B
+B
+B
R766
10K
R767
10K
+B
R768
10K
7
P31 12 - E
TO CD VIDEO PWB
CNP12
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
3 2 1
C701
1/50
100 VDD
+B
+B
1
R773 1K
-20dB 2
R701 100
3
R702 1K
4
R703 1K
5
R704 1K
6
R705 1K
7
R706 1K
DRF 8
R707 1K
WRQ 9
R708 1K C704
10
15P
X2 11
C705
X1 12
18P
XL700
13
4.194304 MHz
XT2 14
R769 1K
SPAN 15
VDD 16 +B
R709 1K
17
R710 1K
CD DI 18
R711 1K
19
R712 1K
20
R713 1K
CE 21
R714 1K
CLK 22
R715 1K
DI 23
R716 1K
DO 24
AVSS
25
R717 100
26
R737 100
27
28 +B
SPEANA1
29
SPEANA0
30
+B
R765
4.7K
R718
1K
-B
+B
+B
+B
+B
8
Figure 29 SCHEMATIC DIAGRAM (8/13)
CD-BK260V/CD-BK2700V/CD-BK280V
P33 12 - B
TO CD VIDEO PWB
CNP1
9 CNS701 1 2 3 4 5 6 7 8 CNS702
9 1 2 3 4 5 6 7 8
BI701 BI702
+B
R787
10K
+B
R786
R771
10K
10K
+B
-B
+B
L701
100µH
5V BACK UP
+B
R781
KRC102 M
47K
2
C715
0.01
RD19
RD18 RD20 RD21
820
680 1K 1.5K
SW720
SW721
TAPE SW722
CD SW723
SW724
TUNING
MEMORY/
FAST
DOWN
SET
REWIND
RD13
RD14 RD15 RD30 RD16
680
820 1.8K 5.6K 3.9K
SW716
SW714 SW715 SW717
DIMMER X-BASS/ VOLUME
EQUALIZER
DEMO UP
RD01 RD04
RD02 RD03
1.5K
680
820 1K
SW702 SW703 SW704
SW701
CLOCK TIMER KARAOKE
ON/
STAND-BY SLEEP MODE
9 10
– 29 –
KARAOKE LATCH
+B
-B -B
+B
+B
+B
+B
D711 D712
DS1SS133 DS1SS133
+B +B
D713
DS1SS133
+B
RESET
C714
Q709
3.3/50
RX701
REMOTE
3
SENSOR
1 2 3
1 R782
100K C716
0.022
RD23 RD24 RD25 RD26 RD27
RD22
2.7K 3.9K 5.6K 10K 18K
2.2K
SW727
SW726
SW730
STOP
PLAY
SW725 SW728
SW729 TUNING
FAST REVERSE
REC/
PLAY
FORWARD PAUSE
RD17
180K
SW718 SW719
VOLUME REVERSE
DOWN MODE
RD05 RD06 RD07 RD08 RD09 RD10 RD11
2.2K 2.7K 3.9K 5.6K 10K 18K
SW705 SW706 SW707
P. B. C OSD DIGEST
11
FFC701
1
MIC IN
1
2
SPAN
3
SW OUT
4
ESS_ACK
5
ESS_STB
6
ESS_DI
7
ESS_DO
8
TUN SM
9
CE
10
DO
11
DI
12
CLK
13
D_GND
14
T_BIAS
15
T_T1/T2
16
REC/PLAY
17
SMUTE
18
SPA_SIG
19
A_GND
20
M_+12V
21
–15V
22
–20dB
23
M_GND
24
SW_5V
25
UN_SW 5V
26
SP_DET
27
SP_RLY
28
VF1
29
–VP
30
VF2
31
P-IN
+B
32
32
D714
DS1SS133
R783
100
C717
47/50
RD28 RD29
33K 100K
SW732
TUNER
SW731
UP VIDEO/
AUX
RD12
33K
100K
SW712
SW713
DISC
OPEN/
SKIP
CLOSE
12