DOWNLOAD Sharp CD-PC651H (serv.man4) Service Manual ↓ Size: 4.16 MB | Pages: 80 in PDF or view online for FREE

Model
CD-PC651H (serv.man4)
Pages
80
Size
4.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-pc651h-sm4.pdf
Date

Sharp CD-PC651H (serv.man4) Service Manual ▷ View online

– 9 –
CD-PC671H/651H
Figure 9-1
Figure 9-2
Figure 9-3
Be careful when installing the CD changer mechanism.
Install the CD changer mechanism on the CD player base after
the shift lever has been set in the highest position.
Figure 9-4
Figure 9-5
( L1 ) x1
ø3 x10mm
( L1 ) x1
ø3 x10mm
( K1 ) x1
ø3 x10mm
Turntable
Disc Tray
( K2 ) x1
( L2 ) x1
( L2 ) x1
CD Player Unit
Washer
( M1 ) x1
ø3 x10mm
( M2 ) x2
( M2 ) x2
CD Player Unit
CD Servo PWB
( N1 ) x4
ø3 x12mm
( P1 ) x1
ø2.6 x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base
Front Panel
Display PWB
(H2)x1
Switch PWB
Open
Cassette
Holder
Tape Mechanism
(H1)x2
ø3x10mm
(H1)x10
ø3x10mm
(H1)x1
ø3x10mm
(J1)x6
ø3x10mm
(G1)x2
ø3x10mm
Headphones
PWB
(J2)x1
(F1)x3
ø3x10mm
(E1)x2
(E4)x1
(F3)x5
(E2)x1
Front Panel
(F2)x2
(F2)x2
(F1)x1
ø3x10mm
Push
Push
1
1
2 Pull
POWER
PWB
Main PWB
POWER PWB
(E3)x1
Headphoens
PWB
CD-PC671H/PC651H
– 10 –
CP-C651H
1
Front Speaker
1. Net .......................... (A1) x1
10-1
2. Front Panel ............ (A2) x1
3. Screw ..................... (A3) x4
4. Tip .......................... (A4) x2
5. Screw ..................... (A5) x2
6. Tip .......................... (A6) x2
STEP
REMOVAL
PROCEDURE
FIGURE
CP-C651H
Figure 10-2
Figure 10-3
(A6)x2
(A5)x2
ø3x10mm
(A3)x4
ø4x12mm
(A4)x2
Front Panel
(A2)x1
Net
(A1)x1
Screw Driver
CP-C671H
1
Front Speaker
1. Front Panel ............ (A2) x1
10-1
2. Tip .......................... (A4) x2
3. Screw ..................... (A3) x2
4. Screw ..................... (A5) x2
5. Screw ..................... (A5) x2
STEP
REMOVAL
PROCEDURE
FIGURE
CP-C671H
(A4)x2
ø3x10mm
(A3)x2
ø3x10mm
Front Panel
(A1)x1
Screw Driver
Woofer
Tweeter
Super
Tweeter
(A5)x4
ø4x14mm
(A2)x2
Figure 10-1
CP-SW671H
CP-SW671H
1
Sub woofer
1. Net .......................... (A1) x1
10-2
3. Screw ..................... (A3) x4
STEP
REMOVAL
PROCEDURE
FIGURE
Note:
The rear speakers and center speaker can be easily
disassembled.
Therefore the disassembling method is not described.
For details refer to the disassembling drawing in the
Parts Guide.
(A2)x4
ø4x12mm
Screw
driver
Drive should be pried
away from Speaker Box.
Direction of handle
Woofer
Speaker
Box
(A1)x1
(CD-PC671H Only)
(CD-PC671H Only)
– 11 –
CD-PC671H/651H
MECHANISM SECTION
 Driving Force Check
Torque Meter
Specified Value
Play: TW-2412
Tape 1: Over 80 g
Tape 2: Over 80 g
 Torque Check
Torque Meter
Tape 2
Play: TW-2111
30 to 60 g. cm
30 to 60 g.cm
Fast forward: TW-2231
60 to 120 g.cm
Rewind: TW-2231
60 to 120 g.cm
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
Normal
MTT-111
Variable
3,000 
±
Speaker
speed
Resistor in
30 Hz
terminal
motor.
(Load
(MM1)
resistance:
8 ohms)
ADJUSTMENT
Specified Value
Tape 1
 Tape Speed
How to remove the pickup (See Fig. 11-2)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).
3. Remove the pickup.
Figure 11-2
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3 and 10-14 of the disassembly method to
remove the CD mechanism.
How to remove the loading motor
(See Fig. 11-1)
1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.
Figure 11-1
( B1 ) x2
  ø2.6 x6mm
Shaft
( B2 ) x1
Stop Washer
( B3 ) x1
Gear
( B4 ) x1
CD Mechanism
Pickup
Note
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector to protect the optical pickup from
electrostatic damage.
TAPE MECHANISM
MM 1
Motor
Variable Resistor in motor
( A1 ) x2
ø2.6 x5mm
Loading Motor
Motor
PWB
Figure 11-3
CD-PC671H/PC651H
– 12 –
• 
 AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna,
Output: TP302
*2. Input: Antenna,
Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
IF
450 kHz
1,620 kHz
T351
*1
Band
522 kHz
(fL): T306
*2
Coverage
1.1 
±
 0.1 V
Tracking
990 kHz
990 kHz
(fH): T302
*1
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
Figure 12 ADJUSTMENT POINTS
CD ERROR CODE DESCRIPTION
When a malfunction occurs during CD operation, an error
code will be displayed to identify the function in CD operation
which failed.
Error
State Code
0001
Cannot detect pickup-in SW
0101
Tray close operation error
0105
Tray close operation error
0201
Tray open operation error
0203
Tray open operation error
0304
Disc skip operation error
0305
Disc skip operation error
0307
Disc skip operation error
•  FM
Notes:
1: Description of the "FM IF Adjustment" is not carried on this
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can't obtain each part individually
Adjusting
Parts
Instrument
Connection
Frequency
Display
Frequency
•  FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
98.00 MHz
98.00 MHz
VR351
Input: Antenna
(25 dB
µ
V)
Output: Speaker
Terminal
TP302
R357
T351
VR351
FM MUTE
LEVEL
R336
TP301
FE301
T306
T302
SO301
FM ANTENNA
TERMINAL
CNP301
AM LOOP
ANTENNA
TERMINAL
TUNER PWB
CNP303
AM IF
AM BAND
COVERAGE
AM
TRACKING
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