DOWNLOAD Sharp XL-HP404 (serv.man11) Service Manual ↓ Size: 178.58 KB | Pages: 12 in PDF or view online for FREE

Model
XL-HP404 (serv.man11)
Pages
12
Size
178.58 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / (8) Others
File
xl-hp404-sm11.pdf
Date

Sharp XL-HP404 (serv.man11) Service Manual ▷ View online

XL-HP404E/HP404H
8 – 3
IC1 VHiLC78648E-1: CD Digital Signal Processor(LC78648E)
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80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
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AVDD1
SLCO
EFMIN
RF
LPF
JITTC
AIN
CIN
BIN
DIN
FEC
PHLPF/RFMON
VREF
EIN
FIN
TEC
TE
TEIN
LDD
LDS
FDO
TDO
SLDO
SPDO
AVSS
AVDD2
DVDD
DVSS
VPB
DEFECT
FSEQ
EFLG
FSX
CONT1
CONT2
CONT3
MONI1
MONI2
DOUT
TEST
VVDD
VVSS
PCKIST
PD02
PD01
CONT4
CONT5
MONI3
MONI4
MONI5
CONT6/SBCK
C2F/SBCK
DRF
*RES
*WRQ
DO
DI
CL
CE
DVSS
DVDD
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
F16MOUT
OUT1
F16MIN
IOMODE
XVDD
XIN
XOUT
XVSS
RVDD
RCHO
LRVSS
LCHO
LVDD
LC78648E
PHLPF/RFMON
VREF
LDD
LDS
LPF
RF
AIN
CIN
BIN
DIN
FEC
EIN
FIN
TEC
TE
TEIN
JITTC
SLCO
EFMIN
PDO1
PDO2
PCKIST
VVDD
VVSS
RVDD
RCHO
LRVSS
LCHO
LVDD
XVDD
XVSS
XIN
XOUT
F16MIN
F16MOUT
ASLRCK
ASDACK
ASDFIN
RESB
TEST
IOMODE
FDO
TDO
SPDO
SLDO
AVDD1
AVSS
AVDD2
DEFECT
DRF
VPB
CONT1~6
OUT1
FSEQ
CL
CE
DI
DO
WRQB
DOUT
LRSY
DATACK
DATA
FSX
EFLG
C2F
MONI1~5
DVDD
DVDD
DVSS
DVSS
MONITOR
VREF
APC
RF SIGNAL
PROCESSOR
FOCUS ERROR
PROCESSOR
JITTER/DETECT
PLL
CLOCK
GENERATOR
EXTERNAL
AUDIO IN
LPF
SLICE LEVEL
CONTROL
TRACKING ERROR
PROCESSOR
1bit DAC
RAM
ATTENUATION
INTERPOLATION
MUTE
ERROR
CORRECTION
8FS DIGITAL
FILTER
DEEMPHASIS
SERIAL
OUT
A/D
AUTO
ADJUST
SETVO
PROCESSEROR
TRACK
JUMP
CLV
CAV
CONTROL
A/D
RAM
RUPTURE
DEFECT
DRF
CPU I/F
FRAME SYNC
DETECT,PROTECT,
INSERT,
EFMDECODE
PORT
MONITOR SIGNAL
SELECTOR
SUBCODE DECODE
CRC & TEXT
AUDIO OUT
Figure 1 BLOCK DIAGRAM OF IC
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.
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.
3
VSS
Ground pin.
4
LOUT
Bass band filter comprising 
capacitor and resistor connection pin 
and bass/treble output pin.
5
LBASS
Bass band filter comprising capacitor 
and resistor connection pin.
6
LTRE
Treble band filter comprising capacitor 
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.
20
RBASS
Bass band filter comprising capacitor 
and resistor connection pin.
21
ROUT
Bass band filter comprising capacitor 
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.
23
VDD
Supply pin
24
CLK
Serial data and clock input pin for con-
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
Page of 12
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Sharp XL-HP404 (serv.man11) Service Manual ▷ Download

  • DOWNLOAD Sharp XL-HP404 (serv.man11) Service Manual ↓ Size: 178.58 KB | Pages: 12 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp XL-HP404 (serv.man11) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp XL-HP404 (serv.man11) System. Information contained in Sharp XL-HP404 (serv.man11) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.