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