Sharp XL-HP700 (serv.man20) Service Manual ▷ View online
– 13 –
XL-HP700H
•
The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
sis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
3. In the deck section, a tape is being played back.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
•
Parts marked with “
1
” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
•
Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
•
Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
•
Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
notice.
REF. NO
DESCRIPTION
POSITION
SW719
TAPE
ON—OFF
SW720
VIDEO/AUX
ON—OFF
SW721
DISC 3 EJECT
ON—OFF
SW722
DISC 2 EJECT
ON—OFF
SW723
DISC 1 EJECT
ON—OFF
SW724
DISC 1
ON—OFF
SW725
DISC 2
ON—OFF
SW726
DISC 3
ON—OFF
SW727
EQUALISER
ON—OFF
SW728
X-BASS/DEMO
ON—OFF
SWB101
CAM 1
ON—OFF
SWB102
CAM 2
ON—OFF
SWB103
CAM 3
ON—OFF
SWB104
CAM 4
ON—OFF
SWB105
CD EJECT
ON—OFF
SWB106
CD TRAY CLOSE
ON—OFF
SWB107
CD IN
ON—OFF
SWB108
CD SET
ON—OFF
SW4
PICKUP IN
ON—OFF
SW701
ON/STAND-BY
ON—OFF
SW702
CLOCK
ON—OFF
SW703
TIMER/SLEEP
ON—OFF
SW704
TUNING/TIME UP
ON—OFF
SW705
TUNING/TIME DOWN
ON—OFF
SW706
REC/PAUSE
ON—OFF
SW707
REVERSE MODE
ON—OFF
SW708
MEMORY/SET
ON—OFF
SW709
ASPM
ON—OFF
SW710
PTY. TI SEARCH
ON—OFF
SW711
DISPLAY MODE
ON—OFF
SW712
PRESET UP
ON—OFF
SW713
PRESET DOWN
ON—OFF
SW714
PLAY
ON—OFF
SW715
STOP
ON—OFF
SW716
REVERSE PLAY
ON—OFF
SW717
CD
ON—OFF
SW718
TUNER (BAND)
ON—OFF
TYPES OF TRANSISTOR AND LED
REF. NO
DESCRIPTION
POSITION
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
B C E
FRONT
VIEW
KRC102 M
KRC104 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
KRC104 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
SLR342VC
KTC2026
FRONT
VIEW
VIEW
KTA1274 Y
KTC3199 GR
KTC3203 Y
2SC380 O
2SC1845 F
KTC3199 GR
KTC3203 Y
2SC380 O
2SC1845 F
XL-HP700H
– 14 –
T
T
DATA
DATACK
LRSY
Stopped
CH1=2 V
DC 10:1
CH2=2 V
DC 10:1
CH3=2 V
DC 10:1
5
µ
s/div
(5
µ
s/div)
NORM:100 kS/s
1
2
3
=Record Length=
Smoothing : ON
CH1 : 0.00 V
CH2 : 0.00 V
CH2 : 0.00 V
Main : 5 K
Zoom : 100
Zoom : 100
Mode : AUTO
Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2
Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2
µ
s
CH3 : 0.00 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH3
v/DIV
2 V
v/DIV
2 V
1999/04/05 20:50:17
10
IC1 58
IC1 59
IC1 60
11
12
T
T
DOUT
Stopped
CH1=2 V
DC 10:1
500 ns/div
1999/04/07 09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing : ON
CH1 : 0.00 V
CH2 : 0.00 V
CH2 : 0.00 V
Main : 1 K
Zoom : 100
Zoom : 100
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2
µ
s
CH3 : 0.00 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
9
IC1 39
T
FDO
PDO2
PDO1
Stopped
CH1=500 mV
DC 10:1
CH3=1 V
DC 10:1
CH4=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing : ON
CH1 : 0.000 V
CH2 : 0.0 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2
µ
s
CH3 : 0.00 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH1
v/DIV
500 mV
v/DIV
500 mV
1999/04/05 17:33:17
1
IC1 21
7
IC1 73
8
IC1 74
T
T
FDO
SPDO
Stopped
CH1=200 mV
DC 10:1
CH2=500 mV
DC 10:1
500 ms/div
1999/04/07 09:51:15
(500 ms/div)
NORM:20 kS/s
2
1
=Record Length=
Smoothing : ON
CH1 : 0.000 V
CH2 : 0.000 V
CH2 : 0.000 V
Main : 100 K
Zoom : 2 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2
µ
s
CH3 : 0.00 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
1
IC1 21
6
IC1 22
T
T
TE
DRF
Stopped
CH1=10 V
DC 10:1
CH2=1 V
DC 10:1
100 ms/div
(100 ms/div)
NORM:100 kS/s
2
1
=Record Length=
Smoothing : ON
CH1 : 0.0 V
CH2 : 0.00 V
CH2 : 0.00 V
Main : 100 K
Zoom : 2 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2
µ
s
CH3 : 0.00 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
3
IC1 67
4
IC1 15
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5
µ
sec/div
5
IC1 4
T
FDO
DRF
TE
Stopped
CH1=500 mV
DC 10:1
CH2=10 V
DC 10:1
DC 10:1
CH3=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON
CH1 : 0.000 V
CH2 : 0.0 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2
µ
s
CH3 : 0.00 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
-3 div
-1 div
0 div
+1 div
+3 div
CH Position To
CH2
Position
0.20 div
Position
0.20 div
1
IC1 21
3
IC1 67
4
IC1 15
T
FDO
TDO
Stopped
CH1=500 mV
DC 10:1
CH3=500 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
3
=Record Length=
Smoothing : ON
CH1 : 0.000 V
CH2 : 0.0 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2
µ
s
CH3 : 0.000 V
CH4 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter=
=Offset=
CH1
v/DIV
500 mV
v/DIV
500 mV
1
IC1 21
2
IC1 20
WAVEFORMS OF CD CIRCUIT
– 15 –
XL-HP700H
Figure 15 BLOCK DIAGRAM (1/3)
+5V
CNP6
MOB1
MAIN CAM MOTOR
MOB2
TRAY MOTOR
+
–
+3.3V
+3.3V
TO DISPLAY SECTION
TO DISPLAY SECTION
TO MAIN SECTION
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V
Q1
PICKUP UNIT
IC1
LC78646E
CD SERVO
VDD
LDD
LDS
M
+
–
M
CNP5
CNP9
TRACKING COIL
FOCUS COIL
SW4
PICKUP IN
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
XVDD
RVDD
LVDD
RFVDD
XL1
16.9344 MHz
CD RES
CL
DI
DO
CE
DRF
WRQ
+8V (+B4)
DGND (DRIVER)
+5V (+B8)
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2
TIN1
FIN2
FIN1
TDO
FDO
SPDO
SLDO
CONT5
VDD5
LCHO
80
79
75
20
5
40
18
24
14
8
21
29
35
41
47
46
38
VVDD
77
10
9
8
7
15
1
2
17 25
22
23
41
42
39
38
37
36
4
7
6
5
16
VCC3
28
26 27
11
13
8
10
9
6
7
4
5
2
3
1
12
5
4
61
62
63
69
57
56
55
51
50
43
44
40
37
19
6
28
26
23
22
21
3
2
7
1
6
3
1
2
+5V (+B7)
DGND
L-CH
6
4
5
AGND
R-CH
8
7
42
RCHO
45
68
64
65
66
DRF
67
48
49
ADAVDD
18
~
~
ZD1
3.3V
+
–
–
+
+5V (+B7)
T_MOT_H/L
CAM_M–
CAM_M+
TRAY_M–
TRAY_M+
CAM4
CAM3
CAM2
CAM1
TRAY 4
TRAY 3
TRAY 2
TRAY 1
CAM4
CAM3
CAM2
CAM1
CD SET
CD IN
CD TRAY CLOSE
CD EJECT
SWB101
SWB102
SWB103
SWB104
SWB108
SWB107
SWB106
SWB105
XL-HP700H
– 16 –
Figure 16 BLOCK DIAGRAM (2/3)
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
VF
VF1
AUX
R
L
R
L
JK690
VIDEO/AUX
FM+B
+B5
CLK
+B6
+B6
+B6
+B5
AM IF
FM IF
AMP.
BI901
–20dB
ATT
ATT
Q101~
Q104
Q107
Q108
Q108
Q601
Q602
Q602
Q603
Q604
Q604
10.7 MHz
450 kHz
REC/PLAY
CLK
CE
DI
DO
DI
CE
MO/ST
SWITCHING
+B5
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM
OUT
L
R
BIAS
MUTING
P.B.
REC.
AC BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP9
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
Q500
Q501
SWITCHING
Q109
BIAS
OSC
OSC
Q111
L103
Q105
Q106
Q106
REC./P.B.
HEAD
R-CH
L-CH
IC601
LC75341
AUDIO PROCESSOR
+B5
R
L
REC
R
L
R REC
L REC
POP REDUCE
SWITCHING
L
R
R
R
L
FM/AM
MPXIN
STEREO
AM RF IN
AM OSC IN
AM OSC OUT
FM
Q360
VT
OSC
X352
4.5 MHZ
AM BAND
COVERAGE
AM
TRACKING
T303
L341
T306
X351
456 kHz
ZD351
5.1V
MO/ST
VCO
FM
DET
VCC
GND
AM IF
CF351
IC303
LA1832S
FM IF DET.
FM MPX./AM IF
AM MIX
CF352
T351
CF302
Q301
CF301
21
4
24
2
1
8
18
17
6
9
10
18
11
16
3
15
10
9
7
23
14
12
13
12
13
8
7
7
7
18
13
21
4
2
23
6
9
16
12
11
15
5
4
1
3
21
7
9
8
5
17
6
21
2
1
20
22
11
17
16
15
13
14
12 20
15
16
23
24
4
7
H/N
P.B
REC
T1/T2
T1/T2
NOR/
HIGH
HIGH
+B5
+B5
+B5
SYSTEM
MUTE
C
TAPE
MECHANISM
ASS'Y
MOTOR
DRIVER
DRIVER
SOLENOID
DRIVER
+B3
+B3
LOW PASS
FILTER
BALUN
SO301
FM ANTENNA
TERMINAL
7
2
4
8
5
1
6
3
AM LOOP
ANTENNA
CNP302
FE301
FM FRONT END
ICT21
LC72723
RDS DECORDER
16
15
14
13
9
10
2
3
11
7 4
MPX IN
VDDA
X OUT
X IN
QT21
XT21
4.332 MHz
RST
RDDA
RDCL
RD-ID/ READY
VSSD
TEST
VSSA
VDDD
+B6
VT
8
L354
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