Sharp XL-HP700 (serv.man17) Service Manual ▷ View online
XL-HP700H
– 44 –
IC601 VHiLC75341/-1: Audio Processor (LC75341)
Figure 44 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
IC601 VHiLC75341/-1: Audio Processor (LC75341)
Terminal Name
Pin No.
Function
1
DI
Serial data and clock input pin
for control.
for control.
2
CE
Chip enable pin.
Data written into an internal latch
in a timing of "H" to "L".
Each analog switch is activated.
Data transfer enabled at "H" level.
Data written into an internal latch
in a timing of "H" to "L".
Each analog switch is activated.
Data transfer enabled at "H" level.
3
VSS
Ground pin.
4
LOUT
Bass band filter comprising
capacitor and resistor connection
pin and bass/treble output pin.
capacitor and resistor connection
pin and bass/treble output pin.
5
LBASS
Bass band filter comprisingcapacitor
and resistor connection pin.
and resistor connection pin.
6
LTRE
Treble band filter comprising
capacitor and resistor connection
pin.
capacitor and resistor connection
pin.
7
LIN
Volume + equaliser output pin
8
LSEL0
Input selector output pin.
9-12
L4-1
Input signal pin.
Terminal Name
Pin No.
Function
13-16
R1-4
Input signal pin.
17
RSEL0
Input selector output pin.
18
RIN
Volume + equaliser output pin
19
RTRE
Treble band filter comprising
capacitor and resistor connection
pin.
capacitor and resistor connection
pin.
20
RBASS
Bass band filter comprisingcapacitor
and resistor connection pin.
and resistor connection pin.
21
ROUT
Bass band filter comprising
capacitor and resistor connection
pin and bass/treble output pin.
capacitor and resistor connection
pin and bass/treble output pin.
22
VREF
0.5x VDD voltage generation block
for analog ground. Capacitor of
several 10
for analog ground. Capacitor of
several 10
µ
F to be connected
between VREF and AWSS (VSS) as
a countermeasure against power
ripple.
a countermeasure against power
ripple.
23
VDD
Supply pin
24
CLK
Serial data and clock input pin
for control.
for control.
– 45 –
XL-HP700H
IC701 RH-iX0548AWZZ: System Microcomputer (IX0548AW) (1/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (1/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (1/2)
1
VDD
VDD
Input
(+) Power supply.
2
P37
-20dBATT
Output
-20dB Attenuator.
3*
P36
NO USE
Output
Open
4
P35
T-BIAS
Output
Tape record bias.
5
P34
SP_RELAY
Output
Speaker relay control.
6
P33
T-REC/PLAY
Output
Tape REC/PLAY change.
7
P32
CD RESOUT
Output
CD DSP reset.
8
P31
AC_RELAY
Output
AC relay control.
9
P30
NO USE
Input
Connect to GND.
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
Input
(+) Power supply.
17
P27
CD CLK
Output
CD DSP clock.
18
P26
CD DI
Output
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
NO USE
Input
Connect to GND.
27
ANI6
TUN SM
Input
Tuner signal meter input.
28
ANI5
FPA/FPB SW
Input
Tape F.P A/B SW & PLAY 2 SW.
29
ANI4
PROTECT
Input
Power abnormal detect.
30
ANI3
NO USE
Input
Connect to GND.
31-33
ANI2-ANI0
KEY 2-KEY 0
Input
Key input.
34
AVDD
AVDD
Input
Analog VDD.
35
AVREF
AVREF
—
Analog ref voltage.
36
INTP3
P_IN
Input
Power failure detect.
37
P02
CD_WRQ
Input
CD write read request.
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
T1-RUN
Input
TAPE 1 RUN PULSE input.
43
P72
T_SOL_A
Output
Tape solenoid control.
44
P71
T_MOTOR
Output
Tape motor control.
45
P70
TIMER LED
Output
Timer LED control.
46
VDD
VDD
Input
(+) Power supply.
47
P127
JOG 1
Input
Volume jog input 1.
48
P126
JOG 2
Input
Volume jog input 2.
49
P125
MIC SW
Input
Mic switch input.
50*
P124
KARA_LATCH
Output
Karaoke latch.
51*
P123
MPEG_POWER
Output
MPEG power control.
52
P122
RDS RST
Output
RDS RAM reset.
53*
P121
RDS RDDA
Input
RDS data input.
Port Name
Terminal Name
Pin No.
Input/Output
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
XL-HP700H
– 46 –
IC701 RH-iX0548AWZZ: System Microcomputer (IX0548AW) (2/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (2/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (2/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Port Name
Terminal Name
Pin No.
Input/Output
Function
54
P120
RDS RDCL
Output
RDS clock.
55
P117
RDS READY
Input
RDS ready.
56
P116
CAM 1 SW
Input
EH mecha CAM 1 SW detection.
57
P115
CAM 2 SW
Input
EH mecha CAM 2 SW detection.
58
P114
CAM 3 SW
Input
EH mecha CAM 3 SW detection.
59
P113
CAM 4 SW
Input
EH mecha CAM 4 SW detection.
60
P112
TRAY EJT SW
Input
EH mecha tray eject SW detection.
61
P111
TRAY CLS SW
Input
EH mecha tray close SW detection.
62
P110
TRAY IN SW
Input
EH mecha tray stock in SW detection.
63
P107
TRAY SET SW
Input
EH mecha tray set SW detection.
64
P106
C MOTOR–
Output
EH mecha CAM motor control.
65
P105
C MOTOR+
Output
EH mecha CAM motor control.
6*
P104
T MOTOR–
Output
EH mecha tray motor control.
67
P103
T MOTOR+
Output
EH mecha tray motor control.
68
P102
T MOTOR H-L
Output
EH mecha tray speed control.
69*
P101/FIP30
NO USE
Output
Open
70
P100/FIP29
DIST IN
Input
Destination input.
71*
P97
NO USE
Output
Open
72
P96/FIP27
DIST0/S18
Output
Destination output./FL segment driver.
73
P95/FIP26
DIST1/S17
Output
Destination output./FL segment driver.
74-78
FIP25-FIP21
S16-S12
Output
FL segment driver.
79
VLOAD
VLOAD
Input
FL driver power supp. -30 V
80-90
FIP20-FIP10
S11-S1
Output
FL segment driver.
91-100
FIP9-FIP0
G10-G1
Output
FL grid driver.
XL-HP700H
– 46 –
IC701 RH-iX0548AWZZ: System Microcomputer (IX0548AW) (2/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (2/2)
IC701 RH-iX0574AWZZ: System Microcomputer (IX0574AW) (Serial No.21001025~) (2/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Port Name
Terminal Name
Pin No.
Input/Output
Function
54
P120
RDS RDCL
Output
RDS clock.
55
P117
RDS READY
Input
RDS ready.
56
P116
CAM 1 SW
Input
EH mecha CAM 1 SW detection.
57
P115
CAM 2 SW
Input
EH mecha CAM 2 SW detection.
58
P114
CAM 3 SW
Input
EH mecha CAM 3 SW detection.
59
P113
CAM 4 SW
Input
EH mecha CAM 4 SW detection.
60
P112
TRAY EJT SW
Input
EH mecha tray eject SW detection.
61
P111
TRAY CLS SW
Input
EH mecha tray close SW detection.
62
P110
TRAY IN SW
Input
EH mecha tray stock in SW detection.
63
P107
TRAY SET SW
Input
EH mecha tray set SW detection.
64
P106
C MOTOR–
Output
EH mecha CAM motor control.
65
P105
C MOTOR+
Output
EH mecha CAM motor control.
6*
P104
T MOTOR–
Output
EH mecha tray motor control.
67
P103
T MOTOR+
Output
EH mecha tray motor control.
68
P102
T MOTOR H-L
Output
EH mecha tray speed control.
69*
P101/FIP30
NO USE
Output
Open
70
P100/FIP29
DIST IN
Input
Destination input.
71*
P97
NO USE
Output
Open
72
P96/FIP27
DIST0/S18
Output
Destination output./FL segment driver.
73
P95/FIP26
DIST1/S17
Output
Destination output./FL segment driver.
74-78
FIP25-FIP21
S16-S12
Output
FL segment driver.
79
VLOAD
VLOAD
Input
FL driver power supp. -30 V
80-90
FIP20-FIP10
S11-S1
Output
FL segment driver.
91-100
FIP9-FIP0
G10-G1
Output
FL grid driver.
Display
