DOWNLOAD Sharp CD-C470E (serv.man3) Service Manual ↓ Size: 2.94 MB | Pages: 76 in PDF or view online for FREE

Model
CD-C470E (serv.man3)
Pages
76
Size
2.94 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-c470e-sm3.pdf
Date

Sharp CD-C470E (serv.man3) Service Manual ▷ View online

CD-C470H,C470E,C480H/CP-C470H,C470E,C480H
– 8 –
Figure 8-1
Figure 8-2
Figure 8-3
Figure 8-4
Care 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 8-5
Main PWB
( H1 ) x2
ø3 x8mm
( G1 ) x1
ø3 x11mm
( F4 ) x3
( F3 ) x1
Front Panel
Tape
Mechanism
( F1 ) x1
ø3 x10mm
Push
Push
Headphon 
PWB
( F3 ) x2
( F3 ) x1
( F2 ) x2
Display 
PWB
Switch PWB
Tape
Mechanism
Open
Cassette
Holder
(Left/Right)
Front Panel
( K1 ) x6
ø3 x10mm
( J2 ) x11
ø3 x10mm
( J1 ) x3
ø3 x10mm
Power Supply PWB
( L1 ) x4
ø3 x10mm
Power Amp. 
PWB
( M1 ) x1
ø3 x10mm
( M1 ) x1
ø3 x10mm
( L1 ) x1
ø3 x10mm
Turntable
Disc Tray
( L2 ) x1
( M2 ) x1
( M2 ) x1
CD Player Unit
( N1 ) x4
ø3 x14mm
( P1 ) x1
ø2.6 x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base
– 9 –
CD-C470H,C470E,C480H/CP-C470H,C470E,C480H
Figure 9-1
Figure 9-2
STEP
REMOVAL
PROCEDURE
FIGURE
1
Front Speaker
1. Net ........................... (A1) x1
9-1
(Left/Right)
2. Front Panel ............. (A2) x1
3. Screw ...................... (A3) x6
STEP
REMOVAL
PROCEDURE
FIGURE
1
Top Cabinet
1. Screw ...................... (B1) x6
9-2
STEP
REMOVAL
PROCEDURE
FIGURE
1
Top Cabinet
1. Screw ...................... (C1) x9
9-3
( A3 ) x2
ø4 x16mm
( A3 ) x4
ø4 x16mm
Screwdriver
 Net
( A1 ) x1
Front Pael
( A2 ) x1
Tweeter
Super Tweeter
Woofer
Figure 9-3
(B1)x2
ø3x20mm
(B1)x2
ø3x20mm
(B1)x2
ø3x20mm
Woofer
(C1)x2
ø3x20mm
(C1)x3
ø3x20mm
(C1)x4
ø3x20mm
CP-C470H/CP-C470E/CP-C480H
CENTER SPEAKER SYSTEM
SURROUND SPEAKER SYSTEM
CP-C470H/CP-C470E/CP-C480H
CENTER SPEAKER SYSTEM
SURROUND SPEAKER SYSTEM
CD-C470H,C470E,C480H/CP-C470H,C470E,C480H
– 10 –
Figure 10-2
How to remove the pickup (See Fig. 10-2)
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.
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 14 and 15 of the disassembly method
to remove the CD mechanism.
How to remove the turntable up/down motor
(See Fig. 10-1)
1. Remove the screws (A1) x 2 pcs., to remove the turntable
up/down motor.
Figure 10-1
( B1 ) x2
   2.6 x6mm
Shaft
( B2 ) x1
Stop Washer
( B3 ) x1
Gear
( B4 ) x1
CD Mechanism
Pickup
( A1 ) x2
ø2 x5mm
Turntable Up/Down Motor
– 11 –
CD-C470H,C470E,C480H/CP-C470H,C470E,C480H
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 100 g.cm
Fast forward: TW-2231
50 to 100 g.cm
Rewind: TW-2231
50 to 100 g.cm
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
Normal
MTT-111
VRM1
3,000 
±
Speaker
speed
30 Hz
terminal
ADJUSTMENT
Specified Value
Tape 1
• Tape Speed
fL: Low-range frequency
fH: High-renge frequency
•  AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
IF
450 kHz
1,620 kHz
T351
*1
MW Band
522 kHz
(fL): T306
*2
Coverage
1.1 
±
 0.1 V
MW
990 kHz
990 kHz
(fL): T302
*1
Tracking
LW Band
153 kHz
(fL): T305
*2
Coverage
1.5 
±
 0.1 V
LW
225 kHz
225 kHz
(fL): T301
*1
Tracking
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
•  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
Figure 11-1 ADJUSTMENT POINTS
TUNER SECTION
*1. Input: Antenna,
Output: TP302
*2. Input: Antenna,
Output: TP301
VRM1
TAPE
SPEED
TAPE  MECHANISM  PWB
TUNER  PWB
TP301
CNP301
SO301
ANTENNA
TERMINAL
FE301
TP302
R357
T351
T306
T305
T302
T301
VR351
AM  IF
FM  MUTE
LEVEL
MW  BAND
COVERAGE
MW  
TRACKING
LW  
TRACKING
LW  BAND
COVERAGE
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