Sharp XL-HP404 (serv.man11) Service Manual ▷ View online
XL-HP404E/HP404H
8 – 4
IC2 VHILA6261//-1: Focus/Tracking/Spin/Sled Driver (LA6261)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
*
Set power system GND to the minimum potential together with SGND
*
Short-circuit three pins of power system SVSS and PVCC1 externally before use.
Pin No.
Terminal Name
Function
1
VO3+
BTL Output pin (+) for channel 3.
2
VO3-
BTL Output pin (-) for channel 3.
3
VO2+
BTL Output pin (+) for channel 2.
4
VO2-
BTL Output pin (-) for channel 2.
5
VO1+
BTL Output pin (+) for channel 1.
6
VO1-
BTL Output pin (-) for channel 1.
7
PGND1
Power GND for channels 1,2,3 and 4 (BTL).
8
REGIN
Regulator pin (External PNP base).
9
PVCC1
Power for channels 1,2,3 and 4 (BTL). (SVCC short-crircuited)
10
REGOUT
Regulator pin (External PNP collector).
11
VIN1
Input pin for channel 1
12*
VIN1G
Input pin for channel 1 (for gain control)
13
VIN2
Input pin for channel 2
14*
VIN2G
Input pin for channel 2 (for gain control)
15
VIN3
Input pin for channel 3
16*
VIN3G
Input pin for channel 3 (for gain control)
17
VIN4
Input pin for channel 4
18
VIN4G
Input pin for channel 4 (for gain control)
19
FWD5
CH5 Output change pin (FWD). Logic input for bridge.
20
REV5
CH5 Output change pin (REV). Logic input for bridge.
21
VCONT5
Input pin for CH5 output voltage control
22
FWD6
CH6 Output change pin (FWD). Logic input for bridge.
23
REV6
CH6 Output change pin (REV). Logic input for bridge.
24
VCONT6
Input pin for CH5 output voltage control.
25
VREFIN
Reference voltage input pin.
26
SGND
Signal system GND
27
SVCC
Signal system power (PVCC1 short - circuited)
28
PVCC2
Power for channel 5 and 6 (H bridge).
29
MUTE
Input pin for BTL mute.
30
PGND2
Power GND for channels 5 and 6 (H bridge).
31
VO6+
H bridge Output pin (+) for channel 6.
32
VO6-
H bridge Output pin (-) for channel 6.
33
VO5+
H bridge Output pin (+) for channel 5.
34
VO5-
H bridge Output pin (-) for channel 5.
35
VO4+
BTL Output pin (+) for channel 4.
36
VO4-
BTL Output pin (-) for channel 4.
XL-HP404E/HP404H
8 – 5
IC2 VHILA6261//-1: Focus/Tracking/Spin/Sled Driver (LA6261)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
11k
22k
1k
1k
1k
1k
11k
11k
11k
22k
22k
22k
-
+
-
+
Pre
D
rive
Pre
D
rive
+
-
+
-
+
-
Refcronce
voltage
DUFFER AMP
For 1/2 VCC
DUFFER AMP
For VREF
TSD
Bandgad
BTL
Mode
select
Mode
select
CH4
CH5
CH6
CH3
CH2
CH1
VOLTAGE
CONTROL AMP
Figure 2 BLOCK DIAGRAM OF IC
XL-HP404E/HP404H
8 – 6
IC601 VHiLC75341/-1: Audio Processor (LC75341)
IC601 VHiLC75341/-1: Audio Processor (LC75341)
Pin No.
Terminal Name
Function
1
DI
Serial data and clock input pin for con-
trol.
trol.
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 comprising capacitor
and resistor connection pin.
and resistor connection pin.
6
LTRE
Treble band filter comprising capacitor
and resistor connection pin.
and resistor connection pin.
7
LIN
Volume + equaliser output pin.
8
LSEL0
Input selector output pin.
9-12
L4-1
Input signal pin.
Pin No.
Terminal Name
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.
and resistor connection pin.
20
RBASS
Bass band filter comprising capacitor
and resistor connection pin.
and resistor connection pin.
21
ROUT
Bass band filter comprising capacitor
and resistor connection pin and bass/
treble output pin.
and resistor connection pin and bass/
treble output pin.
22
VREF
0.5x VDD voltage generation block
for analog ground. Capacitor of sev-
eral 10µF to be connected between
VREF and AWSS (VSS) as a counter-
measure against power ripple.
for analog ground. Capacitor of sev-
eral 10µF to be connected between
VREF and AWSS (VSS) as a counter-
measure against power ripple.
23
VDD
Supply pin
24
CLK
Serial data and clock input pin for con-
trol.
trol.
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
Figure 3 BLOCK DIAGRAM OF IC
XL-HP404E/HP404H
8 – 7
IC701 RH-iXA002AWZZ: System Microcomputer (IXA002AW)(Serial NO.310000001~402XXXXX) (1/2)
IC701 RH-iXA007AWZZ: System Microcomputer (IXA007AW) (Serial NO.402XXXXX)(1/2)
IC701 RH-iXA020AWZZ: System Microcomputer (IXA020AW)(Serial NO.402XXXXX ~) (1/2)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No.
Port Name
Terminal Name
Input/Output
Function
1
VDD
VDD
Input
(+) Power supply 5V.
2
P37
-20dBATT
Output
-20dB Attenuator.
3
P36
T BIAS
Output
Tape record bias control.
4
P35
T_REC/PLAY
Output
Tape REC/PLAY control.
5*
P34
NO USE
Output
Open.
6
P33
CD RESOUT
Output
CD reset.
7
P32
CD_WRQ
Input
CD WRQ input.
8*
P31
NO USE
Output
Open.
9*
P30
NO USE
Output
Open.
10
RESET
RESET
Input
Reset Input.
11
X2
XOUT
Output
Main clock output 4.19MHz.
12
X1
XIN
Input
Main clock input 4.19MHz.
13
IC(VPP)
VPP
—
GND
14*
XT2
NO USE
—
Open
15
P04
CD_DRF
Input
CD DRF detect.
16
VDD
VDD
Input
(+) Power supply 5V.
17
P27
CLK
Output
CD clock.
18
P26
DI
Output
Data output.
19
P25
DO
Input
Data input.
20
P24
CE
Output
CE output.
21
P23
CD CE
Output
CD chip enable.
22
P22
CD CLK
Output
CD Clock.
23
P21
CD DI
Output
CD Data output.
24
P20
CD DO
Input
CD Data input.
25
AVSS
AVSS
—
Analog ground.
26
ANI7
T RUN PULS
Input
Tape Run Pulse detect.
27
ANI6
TUN SM/SPAN
Input
Tuner signal meter/Span Selecetor.
28
ANI5
T_FP SW
Input
Tape Fool Proof A & B SW.
29
ANI4
PROTECT
Input
Power abnormal detect.
30
ANI3
VOL JOG
Input
Volume jog input.
31-33
ANI2-ANI0
KEY 2-KEY 0
Input
Key input.
34
AVDD
AVDD
Input
Analog power supply 5V.
35
AVREF
AVREF
Input
Analog reference voltage 5V.
36
INTP3
P_IN
Input
Power failure detect.
37
P02
PHOTO
Input
5-Changer Photo SW.
38
INTP1
SP DET
Input
Speaker abnormal detect.
39
INTP0
REMOCON
Input
Remocon input.
40
VSS
VSS
—
Ground voltage.
41
P74
S MUTE
Output
System mute control.
42
P73
TIMER LED
Output
Timer LED control.
43
P72
T_SOL
Output
Tape solenoid control.
44
P71
T_MOTOR
Output
Tape motor control.
45
P70
VOL LED
Output
Volume control.
46
VDD
VDD
Input
(+) Power supply 5V.
47
P127
SP RLY
Output
Speaker relay control.
48
P126
AC RLY
Output
AC relay control.
49
P125
RDS RST
Output
RDS reset.
50
P124
RDS READY
Input
RDS ready.
51
P123
RDS RDDA
Input
RDS data.
52
P122
RDS RDCL
Output
RDS clock.
53
P121
TRAY SW2
Input
5-Changer Tray SW2.
