Sharp CD-C1H (serv.man4) Service Manual ▷ View online
CD-C1H/CP-C1H
– 9 –
Figure 9-3
Figure 9-4
Figure 9-2
Figure 9-5
Figure 9-1
(D2)x1
Ø3x10mm
Ø3x10mm
(E4)x1
Ø3x10mm
Ø3x10mm
(E5)x1
Ø3x8mm
Ø3x8mm
(E1)x1
(E2)x1
(E1)x2
(E4)x1
Ø3x10mm
Ø3x10mm
(E3)x2
Display PWB
Main PWB
Front Panel
Pull
Power
PWB
PWB
(F1)x1
(D1)x6
Ø3x10mm
Ø3x10mm
Power
AMP. PWB
AMP. PWB
(D3)x4
Ø3x10mm
Ø3x10mm
(F2)x1
Ø3x6mm
Ø3x6mm
(E5)x1
Ø3x8mm
Ø3x8mm
Tuner
PWB
PWB
(F1)x1
Lug Wire
(F3)x2
Ø3x10mm
Ø3x10mm
Rear
Panel
Panel
(H1)x3
Ø3x10mm
Ø3x10mm
(G3)x12
Ø3x10mm
Ø3x10mm
(K1)x6
Ø3x10mm
Ø3x10mm
Lug Wire
(J1)x1
Ø3x8mm
Ø3x8mm
Open
Headphones
PWB
PWB
Display
PWB
PWB
(G1)x2
(G2)x1
Washer
Tape Mechanism
Cassette
Holder (Left/Right)
Holder (Left/Right)
Front Panel
CD Switch PWB
CD Changer Block
(P1)x2
ø3x10mm
ø3x10mm
(N1)x1
ø3x10mm
ø3x10mm
CD Servo PWB
CD Digital PWB
CD Changer Holder
(P1)x1
ø3x10mm
ø3x10mm
CD Changer
Block
Block
CD Servo PWB
(R1)x1
ø2x7mm
ø2x7mm
(Q2)x3
ø3 x10mm
ø3 x10mm
(Q1)x3
(Q1)x3
Tray
Switch
PWB
Switch
PWB
(L3)x1
Ø3x6mm
Ø3x6mm
(M1)x1
Ø3x10mm
Ø3x10mm
(M2)x4
Ø4x8mm
Ø4x8mm
(L2)x4
Ø3x10mm
Ø3x10mm
Power AMP.
PWB
PWB
(L3)x1
Ø3x6mm
Ø3x6mm
Power
Supply
PWB
Supply
PWB
(L1)x1
CD-C1H/CP-C1H
– 10 –
Figure 10-1
Figure 10-2
Figure 10-3
CP-C1H
Push the pawl of disc tray
with a proper screwdriver.
with a proper screwdriver.
Back surface
Pawl
Disc Tray 1
Disc Tray 2
Disc Tray 3
Pawl
(After drawing out the disc trays 1, 2, and 3, turn
over the mechanism unit, push two pawls, and
remove successively the three disc trays from the
mechanism unit, starting with the disc tray 3.
Thereby the CD mechanism shown in the right
figure can be removed.)
over the mechanism unit, push two pawls, and
remove successively the three disc trays from the
mechanism unit, starting with the disc tray 3.
Thereby the CD mechanism shown in the right
figure can be removed.)
(S1) x2
ø2 x7mm
ø2 x7mm
(S5) x1
ø2.6 x12mm
(S10) x4
ø2.6 x10mm
ø2.6 x10mm
(S3) x1
(S2) x1
(S6) x1
(S9) x1
Disc Tray 2
Disc Tray 3
Spring
(S4) x3
1
2
3
Normal state
Press in turns the arrow
parts, starting with the
uppermost one, to
withdraw the disc trays
parts, starting with the
uppermost one, to
withdraw the disc trays
Pawl
Push
.
CD
Mechanism
Disc Tray 1
Turn clockwise the
main cam to raise the
CD mechanism up to
the uppermost position.
main cam to raise the
CD mechanism up to
the uppermost position.
(S7) x2
ø2 x6mm
ø2 x6mm
(S8) x1
(A4)x2
ø4x20mm
(A3)x4
ø4x25mm
(A2)x4
(A1)x1
Front Panel
Driver
Speaker
Box
(B5)x4
ø4x12mm
(B1)x2
ø3x10mm
(B4)x2
ø3x10mm
(B2)x2
ø3x10mm
Front
Panel
Speaker
Box
Super
Tweeter
Tweeter
(B3)x1
Woofer
CD-C1H/CP-C1H
– 11 –
Figure 11-1
Figure 11-2
CD MECHANISM SECTION
For the procedure to remove the CD mechanism from the
main unit, refer to Disassembling Procedure, Steps 1~8, and
13~17. (page 8).
main unit, refer to Disassembling Procedure, Steps 1~8, and
13~17. (page 8).
How to Remove the optical pickup
(See Fig. 11-1.)
(See Fig. 11-1.)
1. Remove the screws (A1)x 2 pcs., to remove shaft (A2)x 1
pc.
2. Remove stop washer (A3)x 1 pc., to remove gear (A4)x 1 pc.
3. Remove the optical pickup.
Note:
After disconnecting the optical pickup connector wrap the
front end of connector in conductive aluminum foil so as to
prevent damage to the optical pickup by static electricity.
3. Remove the optical pickup.
Note:
After disconnecting the optical pickup connector wrap the
front end of connector in conductive aluminum foil so as to
prevent damage to the optical pickup by static electricity.
How to Remove the tray motor/main cam motor
(See Fig. 11-2.)
(See Fig. 11-2.)
1. Remove the CD changer section by the method described
in page 8, and disassemble as shown in the figure.
2. Remove the belts (B1)x 2 pcs., from the motor side.
3. Remove the screws (B2)x 4 pcs.
4. Remove the tray motor and main cam motor.
3. Remove the screws (B2)x 4 pcs.
4. Remove the tray motor and main cam motor.
How to remove the CD disc
(When CD exists in the tray) (See Fig. 11-4.)
(When CD exists in the tray) (See Fig. 11-4.)
1. Remove the Top cabinet.
2. Disassemble as shown in the figure so that the CD disc of
2. Disassemble as shown in the figure so that the CD disc of
CD changer can be taken out.
3. Remove the CD disc from the tray as shown in the figure.
How to remove the CD disc
(When CD is in playback state) (See Fig. 11-3.)
(When CD is in playback state) (See Fig. 11-3.)
1. Remove the Top cabinet .
2. Disassemble as shown in the figure so that the CD disc of
2. Disassemble as shown in the figure so that the CD disc of
CD changer becomes visible.
3. Remove the CD disc as shown in the figure.
Figure 11-3
Figure 11-4
(A1) x2
ø2.6 x5mm
ø2.6 x5mm
CD
Mechanism
Mechanism
Stop Washer
(A3) x1
(A3) x1
Gear
(A4) x1
(A4) x1
Shaft
(A2) x1
(A2) x1
Pickup
Tray Motor
Main Cam
Motor
Motor
Belt
(B1) x1
(B1) x1
Belt
(B1) x1
(B1) x1
(B2) x2
ø2.6 x4mm
ø2.6 x4mm
(B2) x2
ø2.6 x4mm
ø2.6 x4mm
REMOVING AND REINSTALLING THE MAIN PARTS
(When CD is in playback state.)
CD Disc
Disc Holder
Turn the main cam clockwise,
and raise the CD mechanism
and disc holder up to
uppermost position.
and raise the CD mechanism
and disc holder up to
uppermost position.
CD Changer
Block
Press in turns the arrow
parts, starting with the
uppermost one, to
withdraw the disc trays
parts, starting with the
uppermost one, to
withdraw the disc trays
CD Disc
Disc Holder
CD Mechanism
(When CD exists in the tray)
Disc Tray 1
Disc Tray 2
Disc Tray 3
Turn the main cam clockwise,
and raise the CD mechanism
and disc holder up to
uppermost position.
and raise the CD mechanism
and disc holder up to
uppermost position.
CD Changer
Block
1
2
3
CD-C1H/CP-C1H
– 12 –
Figure 12-2 ADJUSTMENT POINTS
Play: TW-2412
Tape 1: Over 80 g
Tape 2: Over 80 g
Tape 2: Over 80 g
Torque Meter
Specified Value
• Torque Check
Play: TW-2111
30 to 60 g. cm
30 to 60 g.cm
Fast forward: TW-2231
60 to 120 g.cm
60 to 120 g.cm
Rewind: TW-2231
60 to 120 g.cm
60 to 120 g.cm
Torque Meter
Specified Value
Tape 1
Tape 2
MECHANISM SECTION
• Driving Force Check
• Bias Frequency
Instrument
Connection
—
98
±
10 kHz
CNP102 1
ADJUSTMENT
Adjusting Point
Specified Value
• Tape Speed
Normal
MTT-111
VRM01
3,000
±
Speaker
speed
30 Hz
terminal
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
Position of each switch or control
Volume
MAX
3D Surround Mode Button
PASS
Pre-programmed Equalizer
FLAT
Extra Bass
OFF
Function
TAPE
Dolby NR switch
OFF
X-Bass
OFF
TAPE SECTION
• Bias Current
Instrument
Connection
L: VR101
Normal: 45
±
10 mV
L: TP490 4
R: VR102
CrO
2
: 65
±
15 mV
R: TP490 2
Adjusting Point
Specified Value
• Tape 1 Playback Amplifier Sensitivity
Adjusting
Point
Instrument
Connection
L: VRD01
L: TP451 3
R: VRD02
R: TP451 1
Test Tape
Specified Value
MTT-150
Normal: 300 mV
• Tape 2 Playback Amplifier Sensitivity
Adjusting
Point
Instrument
Connection
L: VRD03
L: TP451 3
R: VRD04
R: TP451 1
Test Tape
Specified Value
MTT-150
Normal: 300 mV
• Record/Playback Sensitivity
Adjusting
Point
Instrument
Connection
Record level
control
control
L: VR151
R: VR152
R: VR152
Test Tape
Specified Value
UR-127
215 mV
Input: VIDEO
Output:
L: TP451 3
R: TP451 1
Output:
L: TP451 3
R: TP451 1
215 mV
UNIT
GND
TP490 2 PIN OR 4 PIN
RECORD
MODE
MODE
ELECTRONIC
VOLTMETER
VOLTMETER
TP490 3 PIN
Figure 12-1 BIAS CURRENT
VR102
VR101
VR152 VRD02VRD04
VR151
VRM01
VRD03
VRD01
TP490
1 2 3 4
TP451
1 2 3
R-CH BIAS
CURRENT
R-CH REC/
PLAY SENS.
L-CH REC/
PLAY SENS.
TAPE1 PLAY
R-CH SENS.
TAPE2 PLAY
R-CH SENS.
TAPE2 PLAY
L-CH SENS.
TAPE1 PLAY
L-CH SENS.
L-CH BIAS
CURRENT
CURRENT
WTM1
WTM2
TAPE SPEED
CFW2
CNP851
MAIN PWB
CNP102
1 2 3 4 5 6 7
CNP101
3 2 1
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