Sharp XL-HP404 (serv.man13) Service Manual ▷ View online
XL-HP404E/HP404H
3 – 3
[2] DISASSEMBLY
Note 1:
After removing the connector for the optical pickup from the connector,
wrap the conductive aluminium foil around the front end of the connec-
tor so as to protect the optical pickup from electrostatic damage.
wrap the conductive aluminium foil around the front end of the connec-
tor so as to protect the optical pickup from electrostatic damage.
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and
reassembling it, to keep it safe and ensure excellent performance:
1) Take cassette tape and compact disc out of the unit.
2) Be sure to remove the power supply plug from the wall outlet
Follow the below-mentioned notes when disassembling the unit and
reassembling it, to keep it safe and ensure excellent performance:
1) Take cassette tape and compact disc out of the unit.
2) Be sure to remove the power supply plug from the wall outlet
before starting to disassemble the unit.
3) Take off nylon bands or wire holders where they need to be
removed when disassembling the unit. After servicing the unit,
be sure to rearrange the leads where they were before disas-
sembling.
be sure to rearrange the leads where they were before disas-
sembling.
4) Take sufficient care on static electricity of integrated circuits and
other circuits when servicing.
STEP
REMOVAL
PROCEDURE
FIGURE
1
Cabinet
1. Screw..........................(A1) x11
1
2
Rear Panel Top
1. Screw............................(B1) x2
1
3
CD Changer unit
1. Hook.............................(C1) x2
2. Socket..........................(C2) x1
3. Flat Cable.....................(C3) x1
2. Socket..........................(C2) x1
3. Flat Cable.....................(C3) x1
2
4
Rear Panel Bot-
tom
tom
1. Screw...........................(D1) x8
2
5
Front Panel
1. Screw...........................(E1) x3
2. Flat Cable....................(E2) x2
3. Socket..........................(E3) x1
4. Hook............................(E4) x2
2. Flat Cable....................(E2) x2
3. Socket..........................(E3) x1
4. Hook............................(E4) x2
2,3
3
6
Turner PWB
1. Screw............................(F1) x1
2. Socket..........................(F2) x1
2. Socket..........................(F2) x1
2
3
3
7
Main PWB
1. Screw...........................(G1) x2
2. Socket.........................(G2) x4
2. Socket.........................(G2) x4
2,4
4
8
Power PWB
1. Screw...........................(H1) x4
4
9
Terminal PWB
1. Screw............................(J1) x1
4
10
Display PWB
1. Knob.............................(K1) x1
2. Screw...........................(K2) x 8
3. Flat Cable....................(K3) x 1
2. Screw...........................(K2) x 8
3. Flat Cable....................(K3) x 1
5
11
Tape Mechanism
1. Screw...........................(L1) x 4
5
12
Headphones
PWB
PWB
1. Screw..........................(M1) x 1
5
11
CD Servo PWB
(Note 1)
(Note 1)
1. Screw...........................(N1) x2
2. Flat Cable...................(N2) x 2
3. Socket..........................(N3) x1
2. Flat Cable...................(N2) x 2
3. Socket..........................(N3) x1
6
12
CD Mechanism
1. Screw...........................(P1) x4
2. Screw...........................(P2) x4
2. Screw...........................(P2) x4
6
7
7
Figure 1
Figure 2
Figure 3
(A1) x3
ø3x8mm
(A1) x1
ø3x8mm
(A1) x1
ø3x8mm
(A1) x2
ø3x8mm
(B1) x2
ø3x10mm
(A1) x2
ø3x8mm
(A1) x2
ø3x8mm
Front Panel
Cabinet
Rear
Panel Bottom
Rear
Panel Top
(D1) x8
ø3x8mm
ø3x8mm
(F1) x1
ø3x8mm
ø3x8mm
(G1) x1
ø3x10mm
ø3x10mm
(E1) x1
ø3x10mm
ø3x10mm
(E2) x1
(C2) x1
(C3) x1
Front Panel
Rear
Panel Bottom
Panel Bottom
Hook
(C1)x1
(C1)x1
Hook
(C1)x1
(C1)x1
Pull
Pull
CD Changer
Unit
Unit
Main PWB
Headphones
PWB
PWB
CD Servo PWB
(F2) x1
(E1) x2
ø3x10mm
ø3x10mm
Front Panel
Turner PWB
Main PWB
(E2) x1
Pull
(E3) x1
Tape
Mechanism
Mechanism
Pull
Hook
(E4)x1
(E4)x1
Hook
(E4)x1
(E4)x1
XL-HP404E/HP404H
3 – 4
Figure 4
Figure 5
Figure 6
(G1) x1
ø3x6mm
(H1) x4
ø4x6mm
(J1) x1
ø3x6mm
(G2) x2
(G2) x2
Terminal PWB
Main PWB
Power PWB
(K2) x8
ø2.6x8mm
(L1) x4
ø3x10mm
(M1) x1
ø3x10mm
(K3) x1
(K1) x1
Front Panel
Headphones
PWB
PWB
Cassette
Holder
Holder
Display PWB
Tape
Mechanism
(N1) x2
ø3x10mm
(N2) x2
(N3) x1
(P1) x2
ø3x10mm
(P1) x2
ø3x10mm
CD Changer
Unit
Unit
CD Servo PWB
Figure 7
STEP
REMOVAL
PROCEDURE
FIGURE
1
Woofer/
Tweeter
Tweeter
1. Net Frame(A1) x1
2. Catching Holder(A2) x4
3. Screw(A3) x4
4. Front Panel(A4) x1
5. Screw(A5) x6
2. Catching Holder(A2) x4
3. Screw(A3) x4
4. Front Panel(A4) x1
5. Screw(A5) x6
8
Figure 8
(P2) x4
ø2.6x10mm
CD Changer
Unit
Unit
CD Mechanism
Net Frame
( A1 ) x1
Screwdriver
(A5)x2
ø3.5x14mm
ø3.5x14mm
(A3)x2
ø3.5x16mm
ø3.5x16mm
(A2)x2
(A2)x2
(A3)x2
ø3.5x16mm
ø3.5x16mm
(A5)x4
ø3.5x14mm
ø3.5x14mm
Woofer
Front Panel
( A4 ) x1
( A4 ) x1
Tweeter
XL-HP404E/HP404H
4 – 1
Audio
XL-HP404E/HP404H
Service Manual
XL-HP404H
Market
E
CHAPTER 4.
DIAGRAMS
[1] BLOCK DIAGRAM
FOCUS/TRACKING/ SPIN/SLED
D
RIVER
+B7
RCHO
LRVSS
LCHO
LVDD
RVDD
GND
GND
TR–
TR+
TR+
FO+
FO+
FO–
F
C
B
A
E
VCC
PICKUP
U
NIT
TR–
VREF
MO_SPEED
CNP3
CNP5
CNP4
CNB1
CNP2
Q1
Q2
LDD
VREF
LDS
DVDD
XVDD
AVDD1
AVDD2
DVDD
VVDD
A
+5V
A
+5V
FIN
EIN
CIN
AIN
DIN
BIN
+B8
+B8
–
–
+
+
MO_SPEED/CONT6
MOT_A-/CONT4
TR–
TR+
CAM–
CAM+
+5V
PHOTO
DISC
CLAMP
TRAY_SW1
TRAY_SW2
D_GND
CD_RES
TRAY_SW2
PHOTO
D_GND
+5V
A_+5V
+B4
+B8
+B8
CONT1
0.82µH
CD
DIGITAL
SIGNAL
P
ROCESSOR
LC78648E
IC1
MOT_A+/CONT5
MO_B+/CONT3
MO_B-/CONT2
SLDO
SPDO
FDO
TDO
XIN
XOUT
DRF
*RES
*WRQ
DO
DI
CL
CE
FROM DISPLAY SECTION
TO MAIN SECTION
D_GND
16.9344
MHz
XL1
+B4
R-CH
AGND
L-CH
DGND
D_+5V
WRQ
DRF
CE
DO
DI
CL
CLAMP
DISC
TRAY_SW1
+8V
M
M
34
33
81
0
32
31
24
21
22
23
19
20
5
1
2
35
36
3
4
5
6
30
26
7
25
27
9
28
11
13
15
17
48
47
79
61
56
55
54
154
0
46
28
25
19
20
26
13
49
1
27
60
80
7
8
9
10
15
14
36
21
22
23
24
65
64
66
67
68
63
62
45
41
42
43
44
1
2
3
5
4
6
7
8
1
2
3
4
5
6
13
12
11
10
9
8
7
14
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
6
4
3
1
35
36
70
74
75
2
VCONT6
VCONT5
VREFIN
SVCC
PVCC1
VO4–
VO3+
VO3–
VO4+
PGND1
SGND
PGND2
VO1–
VO1+
VO2–
VO2+
VIN2
VIN1
VIN4
VIN3
VO6+
VO6–
VO5+
VO5–
VO6–
VO5+
VO5–
LA6261
IC2
REV5
FWD5
REV6
FWD6
PVCC2
SLED MOTOR
SPINDLE MOTOR
PICKUP-IN
–
+
–
+
M
M
TRAY MOTOR
DISC
CLAMP
TRAY
SW1
TRAY
SW2
MAIN
CAM
MOTOR
PHOTO INTERRUPTER
SW1A
M1A
M2A
M1
RX1
SW3
SW2
SW1
SW4
M2
Figure 4-1 BLOCK DIAGRAM (1/5)
XL-HP404E/HP404H
4 – 2
+B5
+B5
+B5
+B5
+B10
M
FO
U
T
ST FM
R
L
IF
OUT
AM
IN
FM
IN
COVERAGE
AM BAND
TRACKING
AM
TERMINAL
ANTENNA
+B8(D_+5V)
+B9(SW_+5V)
+B_PROTECT
+B7(A_+5V)
5.1V
FM IF
L341
BALUN
ANTENNA
AM LOOP
VIDEO/AUX
R
L
R
L
FM
+B
+B5
CL
AM IF
ATT
–20dB
Q108
456kHz
10.7MHz
450kHz
REC/PLAY
CLK
CE
DI
DO
DI
CE
MO/ST
SWITCHING
FM/AM
PLL(TUNER)
LC72131
FM/AM OUT
L
R
BIAS
MUTING
AC BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP2
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
SWITCHING
OSC
BIAS
Q105
Q106
REC /P.B. HEAD
TAPE R-CH
L-CH
AUDIO PROCESSOR
LC75341
R
L
REC
R
L
R REC
L REC
SWITCHING
L(TA)
R(TA)
/PLAYBACK AMP.
PLAYBACK AND RECORD
AN7345K
R
L
FM/AM
MPXIN
STEREO
AM
RF
IN
AM
OSC
IN
FM
VT
OSC
4.5MHZ
MO/ST
VCO
FM DET
FM+B
GND
AM
IF
FM IF DET./
LA1832S
AM
MIX OUT
FM FRONT END
Q107
+B5
AM
OSC
O
UT
FM MPX./AM IF
UNSW
SYSTEM
MUTE
15
16
10
12
20
3
7
6
2
8
5
1
17
3
1
2
3
4
21
7
2
7
18
4
21
13
16
9
23
2
16
24
21
15
23
5
21
13
12
14
16
11
1
4
1
9
10
15
15
3
9 10
18
24
8
9
5
4
2
12
15
15
11
7 18
8
23
7
1
17
6
22
11
17
13
14
12
+B5
+B4
H/N
P.B
REC
A_+10V
LD_+8V
SO301
FE301
CF301 Q301
IC303
CF352
T351
CF302
CF351
ZD351
X351
Q601
Q602
Q604
Q603
IC601
JK690
CNS2
Q104
Q101-
IC101
L103
Q111
Q110
Q109
Q851
IC302
Q360
X352
LOW PASS
FILTER
L354
XL-HP404E
Figure 4-2 BLOCK DIAGRAM (2/5)
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