Sharp CD-C605H (serv.man3) Service Manual ▷ View online
CD-C605H
– 9 –
How to remove the turntable up/down/loading
motor (See Fig. 9-2)
motor (See Fig. 9-2)
1. Remove the screws (A1) x 2 pcs., to remove the turntable
up/down/loading motor.
How to remove the pickup (See Fig. 9-3)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2)
x 1 pc.
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4) x 1 pc.
3. Remove the pickup.
Figure 9-3
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, and 11 ~15 of the disassembly method
to remove the CD mechanism.
to remove the CD mechanism.
Figure 9-2
Note:
After disconnecting the optical pickup connector, wrap the
front end of connector in conductive aluminum foil to prevent
damage to the optical pickup by static electricity.
After disconnecting the optical pickup connector, wrap the
front end of connector in conductive aluminum foil to prevent
damage to the optical pickup by static electricity.
Figure 9-1
CP-C605H
STEP
REMOVAL
PROCEDURE
FIGURE
1
Speaker
1. Net Frame ............... (A1) x1
9-1
2. Duct Panel .............. (A2) x1
3. Screw ...................... (A3) x4
3. Screw ...................... (A3) x4
(A1) x2
ø2.6x5mm
Turntable/Up/
Loading/Down Motor
Motor
PWB
PWB
(B1) x2
ø2.6x6mm
Shaft
(B2) x1
Stop Washer
(B3)x1
Gear
(B4) x1
CD Mechanism
Pickup
Speaker Box
(A1)x1
Net Frame
Net Frame
(A3)x4
ø4x12mm
(A2)x1
Duct Panle
Duct Panle
CD-C605H
– 10 –
MECHANISM SECTION
•
Driving Force Check
Torque Meter
Specified Value
Play: TW-2412
Tape 1: Over 80 g
Tape 2: 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)
8 ohms)
ADJUSTMENT
Specified Value
Tape 1
•
Tape Speed
Figure 10-1 ADJUSTMENT POINTS
TAPE MECHANISM
MM 1
Motor
Motor
Variable resistor in motor
Figure 10-2 ADJUSTMENT POINTS
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
fH: High-renge frequency
•
AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF
450 kHz
1,620 kHz
T351
*1
AM Band
—
522 kHz
(fL): T306
*2
Coverage
1.1
±
0.1 V
AM
990 kHz
990 kHz
(fL): T302
*1
Tracking
*1. Input: Antenna,
Output: TP302
*2. Input: Antenna,
Output: TP301
• FM
Notes:
1: Description of the "FM IF Adjustment" is not carried on this
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.
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
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
Terminal
TP302
R357
T351
VR351
FM MUTE
LEVEL
LEVEL
R336
TP301
FE301
T306
T302
SO301
FM ANTENNA
TERMINAL
FM ANTENNA
TERMINAL
CNP301
AM LOOP
ANTENNA
TERMINAL
AM LOOP
ANTENNA
TERMINAL
TUNER PWB
CNP303
AM IF
AM BAND
COVERAGE fL
COVERAGE fL
AM
TRACKING fL
TRACKING fL
CD-C605H
– 11 –
TEST MODE
Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.
CD SECTION
Figure 11-1
Note:
Only in STOP state it is possible to slide the pickup with the (
) or (
) key.
VOL. --- Last memory
BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF
BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF
Canceling method - POWER OFF
• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test
• TEST mode
Function — CD test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test
• TEST mode
Function — CD test mode
Setting of TEST mode
Indication of CD TST mode (Fig. 11-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the (
) or (
) key.
<MEMORY>
LASER ON
LASER ON
<PLAY> key input
Press <STOP> key.
Stop
TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9
<Disc Number 3> key: Track 15
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9
<Disc Number 3> key: Track 15
<MEMORY>
Tracking on the spot.
SERVO OFF PLAY
Tracking on the spot.
SERVO OFF PLAY
<MEMORY>
Tracking on the spot.
SERVO ON PLAY
SERVO ON PLAY
STOP
IL is not performed.
<STOP>
1
2
3
Figure 11-2
Figure 11-3
Figure 11-4
• Automatic adjustment item
1. Focus offset (Fig. 11-2)
2. Tracking offset (Fig. 11-3)
3. E/F balance (tracking error balance) (Fig. 11-4)
4. RF level AGC function (HF level: constant)
5. RF level automatic follow-up of the tracking gain
1. Focus offset (Fig. 11-2)
2. Tracking offset (Fig. 11-3)
3. E/F balance (tracking error balance) (Fig. 11-4)
4. RF level AGC function (HF level: constant)
5. RF level automatic follow-up of the tracking gain
This automatic adjustment is performed each time a disc is
changed. Therefore, each disc is played back using the
optimal settings.
changed. Therefore, each disc is played back using the
optimal settings.
2
0.1s
0.50 V
IC1 20 FE
0.50 V
IC1 20 FE
0.1s
0.50 V
IC1 7 TE
0.50 V
IC1 7 TE
1
FOCUS
OFF-SET
ADJUST
OFF-SET
ADJUST
TRACKING
OFF-SET
ADJUST
OFF-SET
ADJUST
2
1
10ms
0.50 V
IC1 20 FE
0.50 V
IC1 20 FE
10ms
0.50 V
IC1 7 TE
0.50 V
IC1 7 TE
Enlarged
View
View
TRACKING
OFF-SET
ADJUST
OFF-SET
ADJUST
2
1
TO
TE
200 ms
1V/diV
IC 1 15
1V/diV
IC 1 15
200 ms
1V/diV
IC 1 7
1V/diV
IC 1 7
TRACKING/
ERROR
BARANCE
ADJUST
ERROR
BARANCE
ADJUST
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.
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
CD-C605H
– 12 –
•
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.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
5. In the CD section, the CD is stopped.
•
Parts marked with “ ” ( ) 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 micro-micro-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 micro-micro-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.
Figure 12 TYPES OF TRANSISTOR AND LED
SW1
OPEN/CLOSE
ON—OFF
SW2
MECHA UP
ON—OFF
SW3
DISC NUMBER
ON—OFF
SW4
PICKUP IN
ON—OFF
SW701
ON/STAND-BY
ON—OFF
SW702
CLOCK
ON—OFF
SW703
TIMER/SLEEP
ON—OFF
SW707
DISK SKIP
ON—OFF
SW708
OPEN/CLOSE
ON—OFF
SW709
REWIND
ON—OFF
SW710
REC PAUSE
ON—OFF
SW711
MEMORY/SET
ON—OFF
SW712
STOP
ON—OFF
REF. NO
DESCRIPTION
POSITION
POSITION
SW713
TUNER(BAND)
ON—OFF
SW714
TAPE
ON—OFF
SW715
CD
ON—OFF
SW716
FAST FORWARD
ON—OFF
SW717
TUNING UP
ON—OFF
SW718
TUNING DOWN
ON—OFF
SW719
PLAY
ON—OFF
SW720
VOLUME DOWN
ON—OFF
SW721
VOLUME UP
ON—OFF
SW722
X-BASS/DEMO
ON—OFF
SWM3
FOOI PROOF
ON—OFF
SWM4
F.A.S.
ON—OFF
SWM5
CAM
ON—OFF
REF. NO
DESCRIPTION
SVC348S
2SC2389 SE
2SC380 O
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTC3199 GR
KTC3203 Y
2SC380 O
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTC3199 GR
KTC3203 Y
FRONT
VIEW
E C B
(S)(G)(D)
(1) (2) (3)
2SA1318
FRONT
VIEW
B C E
(D)(G)(S)
(3) (2) (1)
1 2 3
SLI342UCJ1
VIEW
FRONT
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