Sharp CD-DP900 (serv.man27) Service Manual ▷ View online
– 57 –
CD-DP900H/E
Figure 57 BLOCK DIAGRAM OF IC
IC1 VHiLC78645NE1: CD Servo (LC78645NE)
1
2
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80
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66 65
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48
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46
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43
42
41
SLCO
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REF1
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
FDO
SPDO
SLDO
GPDAC
CONT4
CONT5
SBCK/CONT6
SBCK/FG
DEFECT
V/*P
FSEQ
MONI1
MONI2
MONI3
MONI4
MONI5
(3.3V)VSS
VDD
DOUT
TEST
LDD
LDS
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT1
CONT2
CONT3
VSS
VDD5
DRF
*RES
*WRQ
DO
DI
CL
CE
DATA
BCK
LRCK
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
FSX/16MIN
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
LC78645NE
+
–
+
–
+
–
+
–
–
–
+
+
MIX
LPF
LPF
LPF
TBAL
TBAL
RAM
LEVEL SET
AGC
EQ
SW
PH
BH
+
–
+
–
+
–
+
–
MONI
CONT
A/D
SERVO PROCESSOR
TRACK JUMP
AUTO ADJUST
JITTER
DETECT
1bit DAC
8FS
DIGITAL FILTER
GENERAL-PURPOSE
PORTS
COMMAND
INTERFACE
CLOCK
GENERATOR
CLV,CAV
CONTROL
PLL
VCEC
SLICE LEVEL
CONTROL
APC
S/H
D/A
SW
DRF
RUPTURE DEFECT
FRAME SYNC
DETECT,PROTECT INSERT,
EFN DECODE
VDD
SUBCODE DECODE CRC
MONITOR SIGNAL SELECTOR
RAM
ERROR
CORRECTION
AUDIO CD
AUDIO OUT
SERIAL
OUT
EXTERNAL
AUDIO IN
INTERPOLATION
MUTE
ATTENUATION
DEEMPHSIS
LPF
FIN1
FIN2
TIN1
TIN2
REF1
DETECT
ADIN
ADAVDD
ADAVSS
JITTC
SLCO
EFMIN
SLCIST
PCK
PDO1
PDO2
PDO2
FR
PCKIST
VVDD
VVSS
SBCK/FG
XIN
XOUT
16MOUT
XVDD
XVSS
*RES
*WRQ
CL
CE
DI
DO
VDD5V
CONT1, 2, 3
TEST
CONT4, 5
SBCK/CONT6
LVDD
LVSS
LCHO
RCHO
RVDD
RVSS
ASDFIN
ASDQCK
ASLRCK
DATA
BCK
LRCK
DOUT
EFLG
C2F
FSK/16MIN
MONI1~5
VSS
VDD
V/*P
FSEQ
DRF
GPDAC
SPD0
SLD0
TD0
FD0
LDS
LDD
VREF
RFMON
RFVSS
RFVDD
RF
TEC
TE
FE
CD-DP900H/E
– 58 –
1
IN2-
CH2 inverted input.
2
IN1A-
CH1 inverted input.
3*
IN1B-
CH1 output offset control.
4
OUT1-
CH1 inverted output.
5
OUT1+
CH1 non-inverted output.
6
OUT2-
CH2 inverted output.
7
OUT2+
CH2 non-inverted output.
8-14
GND
GND
15
OUT3+
CH3 non-inverted output.
16
OUT3-
CH3 inverted output.
17
IN3-
CH3 inverted input.
18
VCC1
Power supply 1 (CH1, CH2, CH3)
19
STANDBY
STANDBY signal input.
20
VRFE
CH1-CH4 Reference voltage input.
21
MUTE
Mute signal input (CH6).
22
IN5-
CH5 inverted input.
23
IN5+
CH5 non-inverted input.
24
VCC2
Power supply 2 (CH4).
25
IN4-
CH4 inverted input.
26
OUT4-
CH4 inverted output.
27
OUT4+
CH4 non-inverted output.
28
VCC3
Power supply 3 (CH5).
29-35
GND
GND
36*
OUT5+
CH5 non-inverted output.
37*
OUT5-
CH5 inverted output.
38
OUT6+
CH6 non-inverted output.
39
OUT6-
CH6 inverted output.
40
VCC4
Power supply 4 (CH6).
41
IN6-
CH6 inverted input.
42
IN6+
CH6 non-inverted input.
IC2 VHiM63001FP-1: Focus/Tracking/Spin/Sled Driver (M63001FP)
Pin No.
Terminal
Name
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
27
26
25
24
23
22
IN2–
IN1A–
IN1B–
OUT1–
OUT1+
OUT2–
OUT2+
OUT3+
OUT3–
IN3–
VCC1
STANDBY
VTEF
MUTE
GND
GND
VCC3
OUT4+
OUT4–
IN4–
VCC2
IN5+
IN5–
IN6+
IN6–
VCC4
OUT6–
OUT6+
OUT5–
OUT5+
M63001FP
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Figure 58 BLOCK DIAGRAM OF IC
– 59 –
CD-DP900H/E
IC401 VHiLC75341/-1: Audio Processor (LC75341M)
Figure 59 BLOCK DIAGRAM OF IC
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
17
LVref
RVref
CONTROL
CIRCUIT
CONTROL
CIRCUIT
CONTROL
CIRCUIT
LOUT
LBASS
LIN
LSEL0
L4
L3
L2
L1
R1
R2
R3
R4
RSEL0
RIN
RTRE
LTRE
RBASS
ROUT
VREF
VDD
CLK
DI
CE
VSS
CCB
INTERFACE
CD
Tuner
Tape
Video
24 23 22 21 20 19 18 17 16 15 14 13
1
2
3
4
5
6
7
8
9
10 11 12
LC75341M
DI
CE
VSS
LOUT
LBASS
LTRE
LIN
LSEL0
L4
L3
L2
L1
CLK
VDD
VREF
ROUT
RBASS
RTRE
RIN
RSEL0
R4
R3
R2
R1
CD-DP900H/E
– 60 –
IC701 RH-iX0504AWZZ: System Microcomputer (IX0504AW) (1/2)
Port Name
Terminal Name
Pin No.
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
1
VDD
VDD
—
(+) POWER SUPPLY
2
P37
–20dBATT
Output
–20dB ATTENUATOR
3
P36
DP_REQ
Output
DOLBY PRO REQUEST
4
P35
T_BIAS
Output
TAPE RECORD BIAS
5
P34
T_T1/T2
Output
TAPE T1/T2 CHANGE
6
P33
T_REC/PLAY
Output
TAPE REC/PLAY CHANGE
7
P32
CD_RESOUT
Output
CD DSP RESET
8
P31
CD_WRQ
Input
CD WRITE READ REQUEST
9
P30
SPAN
Input
TUNER SPAN CHANGE
10
RESET
RESET
Input
RESET
11
X2
X2
Output
MAIN CLOCK
12
X1
X1
Input
MAIN CLOCK
13
VPP/IC
VPP/IC
—
GND
14*
XT2
XT2
—
OPEN
15
P04
CD DRF
Input
CD DRF LEVEL DETECTION
16
VDD
VDD
—
(+) POWER SUPPLY
17
P27
CD_CLK
Output
CD DSP CLOCK
18
P26
CD_DI
Outout
CD DSP COMMAND
19
P25
CD_DO
Input
CD DSP CODE Q OUT
20
P24
CD_CE
Output
CD DSP CE OUTPUT
21
P23
CE
Output
CE OUTPUT
22
P22
CLK
Output
CLOCK OUTPUT
23
P21
DI
Output
DATA OUTPUT
24
P20
DO
Input
DATA INPUT
25
AVSS
AVSS
—
ANALOG GROUND
26
P17
D.NO SW
Input
CD DISC NO. SW
27
ANI6
TUN_SW
Input
TUNER SIGNAL METER INPUT
28
ANI5
PLAY2/FPA/FPB SW
Input
FPA/FPB SW & PLAY SW2
29
ANI4
PROTECT
Input
POWER ABNORMAL PROTECT
30
ANI3
LEVEL DET
Input
SPEAKER OUTPUT LEVEL DETECT
31-33
ANI2-ANI0
KEY2-KEY0
Input
KEY INPUT
34
AVDD
AVDD
—
ANALOG VDD
35
AVREF
AVREF
—
ANALOG REF VOLTAGE
36
INTP3
P_IN
Input
POWER FAILURE DETECT
37
P02
CLAMP SW
Input
CD CLAMP SW
38
INTP1
SP_DET
Input
SPEAKER ABNORMAL DETECT
39
INTP0
REMOCON
Input
REMOCON INPUT
40
VSS
VSS
—
GROUND VOLTAGE
41
P74
SMUTE
Output
SYSTEM MUTE CONTROL
42
P73
T_SOL_B
Output
TAPE2 SOLENOID CONTROL
43
P72
T_SOL_A
Output
TAPE1 SOLENOID CONTROL
44
P71
T_MOTOR
Output
TAPE MOTOR CONTROL
45
P70
TIMER LED
Output
TIMER LED CONTROL
46
VDD
VDD
—
(+) POWER SUPPLY
47
P127
AC_RLY
Output
AC RELAY CONTROL
48
P126
SP_RLY
Output
SPEAKER RELAY CONTROL
49
P125
JOG1
Input
VOLUME JOG INPUT1
50
P124
JOG2
Input
VOLUME JOG INPUT2
51
P123
T2_RUN
Input
TAPE2 RUN PULSE INPUT
52
P122
T1_RUN
Input
TAPE1 RUN PULSE INPUT
53
P121
SR_MUTE
Output
DP SURROUND MUTE
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