DOWNLOAD Sharp CD-DP900 (serv.man25) Service Manual ↓ Size: 73.47 KB | Pages: 7 in PDF or view online for FREE

Model
CD-DP900 (serv.man25)
Pages
7
Size
73.47 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / IC data
File
cd-dp900-sm25.pdf
Date
PREV: Sharp CD-DP900 (serv.man24) Service Manual

Sharp CD-DP900 (serv.man25) Service Manual ▷ View online

– 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
– 61 –
CD-DP900H/E
54
P120
O/C SW
Input
CD OPEN/CLOSE SW
55
P117
MIC_SW
Input
MIC SWITCH INPUT
56
P116
KARA_LATCH
Output
KARAOKE LATCH
57
P115
H/P_SW
Input
HEADPHONE DETECT
58
P114
C MUTE
Output
DP CENTER MUTE
59
P113
RDS_RST
Output
RDS RAM RESET
60
P112
RDS_RDDA
Input
RDS DATA INPUT
61
P111
RDS_RDCL
Output
RDS CLOCK
62
P110
RDS_READY
Input
RDS READY
63-65*
P107-P105
ILU_LED1-3
Output
ILLUMINATION LED1-3
66*
P104
FOR_PLY_LED
Output
FORWARD PLAY LED
67*
P103
REV_PLAY_LED
Output
REVERCE PLAY LED
68*
P102
STOP_LED
Output
STOP LED
69
P101
DIST
Input
DISTINATION INPUT
70
FIP29
S21
Output
FL SEGMENT DRIVER
FIP28
S20
Output
FL SEGMENT DRIVER
71
P97
DIST0
Output
DISTINATION OUTPUT
FIP27
S19
Output
FL SEGMENT DRIVER
72
P96
DIST1
Output
DISTINATION OUTPUT
FIP26
S18
Output
FL SEGMENT DRIVER
73
P95
DIST2
Output
DISTINATION OUTPUT
FIP25
S17
Output
FL SEGMENT DRIVER
74
P94
DIST3
Output
DISTINATION OUTPUT
75-78
FIP24-FIP21
S16-13
Output
FL SEGMENT DRIVER
79
VLOAD
VLOAD
—
FL DRIVER POWER SUPP. –30V
80-91
FIP20-FIP9
S12-S1
Output
FL SEGMENT DRIVER
92-100
FIP8-FIP0
G9-G1
Output
FL GRID DRIVER
IC701  RH-iX0504AWZZ: System Microcomputer (IX0504AW) (2/2)
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
IC701  RH-iX0504AWZZ: System Microcomputer (IX0504AW)
Figure 61 BLOCK DIAGRAM OF IC
A/D KEY2
DP_REQ
DOLBY
PROLOGIC
SR_MUTE
ILLUMI LED
&
OPE LED
POWER
AUDIO
PROCESSOR
(LC75341)
SPAN
SELECT
TAPE CONTROL
CMAT5Z(1-REV)/
CMAT6Z(1-WAY)
C_MUTE
A/D PROTECT
SYSTEM 
µ
-COM
(
µ
PD780208-xxx-3BA)
ROM:60K RAM:2K
PLAY SW2
T2_RUN
T1_RUN
T_MOTOR
T_SOLB
T_SOLA
A/D T_FPA/FPB SW
T_REC/PLAT
T1/T2
T_BIAS
CD CE
CD DI
CD DO
CD DRF
CD WRQ
CD CLMP SW
A/D OC + DNO SW
CD CL
CD RES OUT
KARA_LATCH
DO
CL
CE
DI
A/D TUN SM
RDS RST
RDS READY
RDS CL
RDS DATA
–20dB
S MUTE
A/D POWER DET
SP_DET
P_IN
AC_RLY
SP_RLY
SPAN
A/D KEY1
A/D KEY0
TIMER
H/P SW
MIC SW
REM
DIST
KEY
RDS
(LC72723)
MUTE
CONT
–20dB
ATT
POWER
AMP
SPEAKER
H/P
MUTE
CONT
PLL
(LC72131)
FRONTEND
TUN SD
TUN MUTE
STEREO
IF CONT
IF IN
JF/MULTI
KARAOKE
TIMER LED
REMOCON
DIST
FL
MULTI COLOR
(9G x 21S)
SANYO 1 CHIP
DIGITAL SERVO
(LC 78645E)
NEW SHARP 3-CHANGER
– 61 –
CD-DP900H/E
54
P120
O/C SW
Input
CD OPEN/CLOSE SW
55
P117
MIC_SW
Input
MIC SWITCH INPUT
56
P116
KARA_LATCH
Output
KARAOKE LATCH
57
P115
H/P_SW
Input
HEADPHONE DETECT
58
P114
C MUTE
Output
DP CENTER MUTE
59
P113
RDS_RST
Output
RDS RAM RESET
60
P112
RDS_RDDA
Input
RDS DATA INPUT
61
P111
RDS_RDCL
Output
RDS CLOCK
62
P110
RDS_READY
Input
RDS READY
63-65*
P107-P105
ILU_LED1-3
Output
ILLUMINATION LED1-3
66*
P104
FOR_PLY_LED
Output
FORWARD PLAY LED
67*
P103
REV_PLAY_LED
Output
REVERCE PLAY LED
68*
P102
STOP_LED
Output
STOP LED
69
P101
DIST
Input
DISTINATION INPUT
70
FIP29
S21
Output
FL SEGMENT DRIVER
FIP28
S20
Output
FL SEGMENT DRIVER
71
P97
DIST0
Output
DISTINATION OUTPUT
FIP27
S19
Output
FL SEGMENT DRIVER
72
P96
DIST1
Output
DISTINATION OUTPUT
FIP26
S18
Output
FL SEGMENT DRIVER
73
P95
DIST2
Output
DISTINATION OUTPUT
FIP25
S17
Output
FL SEGMENT DRIVER
74
P94
DIST3
Output
DISTINATION OUTPUT
75-78
FIP24-FIP21
S16-13
Output
FL SEGMENT DRIVER
79
VLOAD
VLOAD
—
FL DRIVER POWER SUPP. –30V
80-91
FIP20-FIP9
S12-S1
Output
FL SEGMENT DRIVER
92-100
FIP8-FIP0
G9-G1
Output
FL GRID DRIVER
IC701  RH-iX0504AWZZ: System Microcomputer (IX0504AW) (2/2)
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
IC701  RH-iX0504AWZZ: System Microcomputer (IX0504AW)
Figure 61 BLOCK DIAGRAM OF IC
A/D KEY2
DP_REQ
DOLBY
PROLOGIC
SR_MUTE
ILLUMI LED
&
OPE LED
POWER
AUDIO
PROCESSOR
(LC75341)
SPAN
SELECT
TAPE CONTROL
CMAT5Z(1-REV)/
CMAT6Z(1-WAY)
C_MUTE
A/D PROTECT
SYSTEM 
µ
-COM
(
µ
PD780208-xxx-3BA)
ROM:60K RAM:2K
PLAY SW2
T2_RUN
T1_RUN
T_MOTOR
T_SOLB
T_SOLA
A/D T_FPA/FPB SW
T_REC/PLAT
T1/T2
T_BIAS
CD CE
CD DI
CD DO
CD DRF
CD WRQ
CD CLMP SW
A/D OC + DNO SW
CD CL
CD RES OUT
KARA_LATCH
DO
CL
CE
DI
A/D TUN SM
RDS RST
RDS READY
RDS CL
RDS DATA
–20dB
S MUTE
A/D POWER DET
SP_DET
P_IN
AC_RLY
SP_RLY
SPAN
A/D KEY1
A/D KEY0
TIMER
H/P SW
MIC SW
REM
DIST
KEY
RDS
(LC72723)
MUTE
CONT
–20dB
ATT
POWER
AMP
SPEAKER
H/P
MUTE
CONT
PLL
(LC72131)
FRONTEND
TUN SD
TUN MUTE
STEREO
IF CONT
IF IN
JF/MULTI
KARAOKE
TIMER LED
REMOCON
DIST
FL
MULTI COLOR
(9G x 21S)
SANYO 1 CHIP
DIGITAL SERVO
(LC 78645E)
NEW SHARP 3-CHANGER
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