Service manual
– 31 –
CD-BK260V/CD-BK2700V/CD-BK280V
Figure 31 SCHEMATIC DIAGRAM (10/13)
7
8 9 10 11 12
• The numbers 1 to 12 are waveform numbers shown in page 44.
2
3
1
M
3
5
4
2
6
1
3
5
4
2
6
1
CD LOADING
MOTOR PWB-E
CD SIGNAL
4
10
1112
3
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
—
+
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R40 1.2K
R45 1.2K
R46 1K
R17 1K
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
6566676869707172737480 79 78 77 76 75
DISC-NO
EFBL
+5V
DATA
DATACK
LRSY
DISC-NO
D_GND
RES
RAC/NTSC
OPENNMP3O
OPEN/CLOSE
ASLRCK
ASDACK
ASDFIN
16M
A10V
A10V
TO MP3 SECTION
P32 1-E, P33 12-B
TO MP3 SECTION
P32 1-E
LD
LD
CONT7
C2F
+5V
DGND
AGND
L-CH
L-CH
R-CH
R-CH
DRF
CONT6
GND(D)
M–
M+
GND
CD RES
DI
CLK
DO
CE
WRQ
CLAMP SW
CLAMP
PCKIST
TEST
DOUT
VDD
PCK
SLDOSPDO
FDO
TDO
TBLO
BHREF
PHREF
ADAVSS
ADAVDD
VREF
TE
FE
PH(RFENV)
BH
JITTC
JITTV
EFMIN
SLCO
SLCIST
HFL
FR
VVDD
VVSS
PD02
PD01
MUTEL
MUTER
LVDD
LCHO
XVDD
LVSS
RVSS
RCHO
RVDD
XIN
XOUT
XVSS
LRSY
DATACK
DATA
SFSY
SBSY
PW
SBCK
CE
CL
DI
DO
WRQ
RES
DEF
VDD5V
VSS
V/vP
FSEQ
DEFECT
EFMO
1
2
3
4
5
6
9
8
7
6
5
4
3
2
1
6
3
4
1
2
5
CONT5
FG(D_Vref)
EFLG
FSX
CONT4
CONT3
CONT2
CONT1
LASER
EMPH
SERIAL
OUT
EXTERNAL
AUDIO IN
DIGITAL
FILTER
1BIT
DAC
LPF
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
AUDIO
OUT
ERROR
CORRECT
FRAME SYNC
DEFECT,PROTECT
EFM DECODE
CLV
CONTROL
CLOCK
GENERATOR
GENERAL
SUBCODE
DECODE
CRC
COMMAND
INTERFACE
GENERAL
SW
SERVO
PROCESSEROR
AUTO
ADJUST
–
+
S/H
D/A
JITER
DEFECT
CONTROL
A/D
SW
SLICE
LEVEL
CONTROL
PLL
VCEC
6
9
1
2
3
4
5
6
7
8
9
10
11
TO MP3
SECTION
P32 1-E
TO
DISPLAY PWB
P29 9-A
TO
MAIN PWB
P22 1-B
IC2
LC78636E
CNS701
CNS601
C28
4
7/10
C22
100P(CH)
R80
1M
C26
0.047
R15
10K
C29
0.022
R37
1.5K
C21
0.1
R
79 1.5M
R38
270
R39
470
R35
1K
R12
680
C
23
.047
R44 1K
C27
0.1
C81 0.022
R13
680
R11
12K
R14
1.2K
R58
68
Q4
KTC3203 Y
ZD61
Z02W3.9Z
C87
1000/6.3
R16
10K
C83
0.047
R112
330
R97
3.9K
XL2
16.934 MHz
R116
1.5K
R113
2.2K
Q9
KTC3875 GR
R117
330
C84
0.047
Q10
KTC3875 GR
CE1
1/50
R114
22K
R118
2.2K
C30
0.022
L61
0.82µH
R20
220
C64
47/6.3
C34 0.022
C31
100/10
C86
10P(CH)
C85
8P(CH)
C44 0.022
L62 2.2µH
R78 1K
R77 1K
R76 1K
R75 100
R72 1K
R71 1K
R73 1K
C45 100/10
C78 100P (C H)
C77 100P (C H)
C76 100P (C H)
C75
100P(CH)
C73 100P (CH)
C71 100P(CH)
C72 0.01
C80 0.1
R68
1K
R67
1K
R94
10K
R95
10K
CNP12
CNP4
R21
470
R22
470
D21
KDS193
D22
KDS193
Q2
KRC102 S
7
8
IC2
LC78636E
SERVO/SIGNAL
CONTROL
CNS4
BI4
M3 T/T
UP DOWN
LOADING
SW1
OPEN/CLOSE
SW2
CLAMP
SW3
DISC NO.
CNP11
CONSTANT
VOLTAGE