Sharp XL-65H (serv.man22) Service Manual ▷ View online
XL-55H/65H
– 6 –
1
Top Cabinet
1. Screw .................. (A1) x5
6-1
2. Socket ................. (A2) x2
6-1,3
2
Side Panel(Left/Right) 1. Screw .................. (B1) x4
6-1
3
Rear Panel
1. Screw .................. (C1) x3
6-1
2. Screw .................. (C2) x2
6-2
4
Power Amp. PWB
1. Screw .................. (D1) x1
6-2
2. Socket ................. (D2) x1
3. Socket ................. (D3) x1
3. Socket ................. (D3) x1
5
Main PWB/
1. Screw .................. (E1) x4
6-3
Headphones PWB
2. Socket ................. (E2) x4
3. Socket ................. (E3) x1
6
Front Panel
1. Screw .................. (F1) x2
6-4
2. Socket ................. (F2) x2
7
Power PWB
1. Screw .................. (G1) x5
6-4
8
Tape Mechanism
1. Open the cassette holder
6-5
2. Screw .................. (H1) x4
9
Display PWB
1. Knob .................... (J1) x1
6-5
2. Screw .................. (J2) x8
10
CD PWB(Note)/
1. Screw .................. (K1) x4
7-1
Open Close Switch 2. Screw .................. (K2) x2
PWB
PWB
3. Socket ................. (K3) x3
11
CD Mechanism
1. Screw .................. (L1) x3
7-2
DISASSEMBLY
STEP
REMOVAL
PROCEDURE
FIGURE
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
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 disassembling.
the unit, be sure to rearrange the leads where they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
(E1)x1
ø3x10mm
ø3x10mm
(E1)x1
ø3x10mm
ø3x10mm
(E1)x1
ø3x10mm
ø3x10mm
(E1)x1
ø3x10mm
ø3x10mm
(E2)x2
(A2)x1
(E2)x2
(E3)x1
Main PWB
Power PWB
Tape
Mechanism
PWB
Mechanism
PWB
Headphones
PWB
PWB
Side Panel
(Right)
(Right)
Rear Panel
(C1)x1
ø3x10mm
ø3x10mm
(C1)x2
ø3x10mm
ø3x10mm
Side Panel
(Left)
(Left)
(A1)x1
ø3x10mm
ø3x10mm
(A1)x2
ø3x10mm
ø3x10mm
(A1)x1
ø3x10mm
ø3x10mm
(A1)x1
ø3x10mm
ø3x10mm
(A2)x1
(B1)x2
ø3x10mm
ø3x10mm
(B1)x2
ø3x10mm
ø3x10mm
Top Cabinet
CD PWB
(C2)x2
ø3x10mm
ø3x10mm
(D1)x1
ø3x10mm
ø3x10mm
(D2)x1
Rear Panel
(D3)x1
Main PWB
Power Amp. PWB
Power PWB
(G1)x4
ø4x10mm
ø4x10mm
(F1)x1
ø3x10mm
ø3x10mm
(F1)x1
ø3x10mm
ø3x10mm
(G1)x1
ø3x10mm
ø3x10mm
(F2)x1
(F2)x1
Power
PWB
PWB
Front Panel
Figure 6-1
Figure 6-2
Figure 6-3
Figure 6-4
Note:
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electro-
static damage.
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electro-
static damage.
(J2)x8
ø2.6x10mm
ø2.6x10mm
(H1)x4
ø2.6x10mm
ø2.6x10mm
(J1)x1
Front Panel
Display PWB
Tape
Mechanism
Mechanism
Open
Cassette
Holder
Holder
Figure 6-5
– 7 –
XL-55H/65H
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism. (See page 6.)
remove the tape mechanism. (See page 6.)
How to remove the record / playback and erase
heads (See Fig. 7-3.)
heads (See Fig. 7-3.)
1. Remove the screws (A1) x 2 pcs., to remove the erase
head.
2. Remove the screws (A2) x 2 pcs., to remove the record/
playback head.
Note:
After replacing the heads and performing the azimuth
adjustment, be sure to apply screwlock.
After replacing the heads and performing the azimuth
adjustment, be sure to apply screwlock.
How to remove the pinch roller (See Fig. 7-4.)
1. Carefully bend the pinch roller pawl in the direction of the
arrow
<A>
, and remove the pinch roller (B1) x 1 pc.,
upwards.
How to remove the belts (See Fig. 7-5.)
1. Remove the main belt (C1) x 1 pc., from the motor pulley.
2. Remove the FF/REW belt (C2) x 1 pc., from the REW/FF
2. Remove the FF/REW belt (C2) x 1 pc., from the REW/FF
roller.
3. Put on the belts in the reverse order of removal.
Note:
When putting on the belt, ascertain that the belt is not twisted,
and clean it.
Note:
When putting on the belt, ascertain that the belt is not twisted,
and clean it.
How to remove the motor
(See Fig. 7-6.)
(See Fig. 7-6.)
1. Remove the main belt.
2. Remove the screws (D1) x 2 pcs., to remove the motor
2. Remove the screws (D1) x 2 pcs., to remove the motor
bracket.
3. Remove the screws (D2) x 3 pcs., to remove the motor.
Note:
When mounting the motor, pay attention to the motor mounting
angle.
Note:
When mounting the motor, pay attention to the motor mounting
angle.
<A>
Pinch Roller
(B1)x1
(B1)x1
Pinch Roller
Pawl
Pawl
REMOVING AND REINSTALLING THE MAIN PARTS
Main Belt
(C1)x1
(C1)x1
FF/REW Belt
(C2)x1
(C2)x1
REW/FF
Clutch
Clutch
Motor
Erase Head
Record/
Playback Head
Playback Head
(A1)x2
ø2x8mm
ø2x8mm
(A2)x1
ø2x3mm
ø2x3mm
(A2)x1
ø2x7mm
ø2x7mm
(D1)x1
ø2x4mm
ø2x4mm
(D2)x3
Special
Screw
Special
Screw
Motor
Bracket
Bracket
Motor
Motor
(D1)x1
ø2x4mm
ø2x4mm
(K1)x4
ø2.4x10mm
ø2.4x10mm
(K2)x1
ø2.6x10mm
ø2.6x10mm
(K2)x1
ø2.6x10mm
ø2.6x10mm
(K3)x2
(K3)x1
Top Cabinet
CD PWB
Open/Close
Switch PWB
Switch PWB
Jack
PWB
PWB
CD Mechanism
Figure 7-1
Figure 7-3
Figure 7-4
Figure 7-5
Figure 7-6
Figure 7-2
(L1)x3
ø2.6x10mm
ø2.6x10mm
Top Cabinet
CD Mechanism
XL-55H/65H
– 8 –
How to remove the pickup (See Fig. 8-3)
1. Remove the mechanism cover, paying attention to the
pawls (A1) x 4 pcs.
2. Remove the screws (A2) x 2 pcs., to remove the shaft (A3)
x 1 pc.
3. Remove the stop washer (A4) x 1 pc., to remove the gear
(A5) x 1 pc.
4. Remove the pickup.
CD MECHANISM SECTION
Perform steps 1, 10 and 11 of the disassembly method to
remove the CD mechanism. (See page 6.)
remove the CD mechanism. (See page 6.)
Pickup Unit
(A2) x2
ø2.6 x6mm
ø2.6 x6mm
(A1) x2
CD Mechanism
Shaft
(A3) x1
(A3) x1
Gear
(A5) x1
(A5) x1
StopWasher
(A4) x1
(A4) x1
Mechanism Cover
(A1) x2
How to remove the tape mechanism PWB
(See Fig. 8-2.)
(See Fig. 8-2.)
1. Remove the screw (F1) x 1 pc., to remove the tape
mechanism PWB.
2. Remove the screws (F2) x 1 pc.
3. Remove the solder joints (F3) x 2 pcs., to remove the tape
3. Remove the solder joints (F3) x 2 pcs., to remove the tape
mechanism PWB.
How to remove the flywheel (See Fig. 8-1.)
1. Remove the belt.
2. Remove the stop washer (E1) x 1 pc., with a small precision
2. Remove the stop washer (E1) x 1 pc., with a small precision
screwdriver to extract the flywheel from the capstan metal.
Note:
When the stop washer is deformed or damaged, replace it
with a new one.
When the stop washer is deformed or damaged, replace it
with a new one.
How to reinstall the parts
Install each part in the reverse order of the removal with care.
Stop
Washer
Washer
Driver
(E1)x1
Stop Washer
Stop Washer
Mechanism
Chassis
Chassis
Washerx2
Flywheel
Tape
Mechanism
PWB
Mechanism
PWB
Tape
Mechanism
PWB
Mechanism
PWB
(F3)x2
Solder
Joint
Solder
Joint
(F2)x1
ø2x8mm
ø2x8mm
(F1)x1
ø2x3mm
ø2x3mm
Note:
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.
Figure 8-1
Figure 8-2
Figure 8-3
– 9 –
XL-55H/65H
MECHANISM SECTION
• Driving Force Check
Torque Meter
Specified Value
Play: TW-2412
Over 80 g
• Torque Check
Torque Meter
Play: TW-2111
30 to 60 g. cm
Fast forward: TW-2231
55 to 140 g.cm
Rewind: TW-2231
55 to 140 g.cm
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
ADJUSTMENT
Specified Value
• Tape Speed
TUNER SECTION
MTT-111
Variable
3,000
±
Headphone
resistor in
90 Hz
terminal
motor.(M901)
Check Point
Instrument
Connection
Display
Frequency
87.5 MHz
87.5 MHz
3.4 V
±
1.0 V
TP301
108 MHz
108 MHz
7.8 V
±
1.0 V
TP301
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF
450 kHz
1,602 kHz
T351
*1
AM Band
—
531 kHz
(fL): T306
*2
Coverage
1.1
±
0.1 V
AM
990 kHz
990 kHz
T302
*1
Tracking
fL: Low-renge frequency
fH: High-renge frequency
fH: High-renge frequency
Signal generator: 400 Hz, 30%, AM modulated
• AM IF/RF
Adjusting
Parts
Instrument
Connection
Display
Frequency
98.00 MHz
98.00 MHz
VR351*1
Input: CNP301
(30 dB
µ
V)
Output: Speaker
Terminal
Terminal
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
TAPE MECHANISM
M901
Tape
Motor
Tape
Motor
Variable
resistor
in motor
resistor
in motor
IC303
IC302
FE301
CF352
R336
T306
VR351
T302
T351
MAIN PWB
FM Mute
Level
Level
AM IF
TP301
CNP301
ANTENNA
SOCKET
SOCKET
FM
AM
SO301
AM
Tracking
Tracking
AM Band
Coverage fL
Coverage fL
Figure 9-1 ADJUSTMENT POINT
Figure 9-2 ADJUSTMENT POINTS
*1. Input: Antenna
Output: Speaker terminal
*2. Input: Input is not connected
Output: TP301
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