Sharp CD-C410H (serv.man4) Service Manual ▷ View online
CD-C410H,CP-C410
– 9 –
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 10 and 11 of the disassembly method
to remove the CD mechanism.
to remove the CD mechanism.
How to remove the loading motor
(See Fig. 9-1)
(See Fig. 9-1)
1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.
Figure 9-1
( A1 ) x2
ø2 x5mm
ø2 x5mm
Loading Motor
Figure 9-2
How to remove the pickup (See Fig. 9-2)
1. Remove the screws (C1) x 2 pcs., to remove the shaft (C2).
2. Remove the stop washer (C3) x 1 pc., to remove the gear
2. Remove the stop washer (C3) x 1 pc., to remove the gear
(C4).
3. Remove the pickup.
( C1 ) x2
2.6 x6mm
2.6 x6mm
( C2 ) x1
( C3 ) x1
( C4 ) x1
CD Mechanism
Pickup
CD-C410H,CP-C410
– 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
Volume in
3,000
±
Speaker
speed
motor.
30 Hz
terminal
(Load
resistance:
8 ohms)
(Load
resistance:
8 ohms)
Specified Value
Tape 1
•
Tape Speed
Figure 10-1 ADJUSTMENT POINTS
ADJUSTMENT
•
AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna,
Output: TP302
*2. Input: Input is not connected,
Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
fH: High-renge frequency
IF
450 kHz
1,620 kHz
T351
*1
Band
—
522 kHz
(fL): T302
*2
Coverage
1.1
±
0.1 V
Tracking
990 kHz
990 kHz
(fL): T302
*1
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
•
Setting the Test Mode
Keeping the TUNING (DOWN) button and MEMORY button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the PRESET
button to use it for adjustment and check of tuner circuit.
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the PRESET
button to use it for adjustment and check of tuner circuit.
1
87.50 MHz
6
522 kHz
2
108.00 MHz
7
1,620 kHz
3
90.00 MHz
8
603 kHz
4
106.00 MHz
9
1,404 kHz
5
98.00 MHz
10
990 kHz
11 ~ 40
Preset No.
FM
Preset No.
AM
Adjusting
Parts
Instrument
Connection
Frequency
Display
Frequency
98.00 MHz
98.00 MHz
VR351 *1
Input: So301
(25 dB
µ
V)
Output: Speaker
Terminal
•
FM Mute Level
Signal generator: 1 kHz, 40 kHz dev. FM modulated.
*1. Adjust so that an output signal appears
TAPE MECHANISM
MM 1
Motor
Motor
Volume in motor
TUNER PWB
AM BAND
COVERAGE fL
COVERAGE fL
ANTENNA
TERMINAL
TERMINAL
T351
R331
L311
CNP301
T302
FE301
VR351
FM MUTE
LEVEL
LEVEL
AM IF
TP302
TP301
IC303
13
1
21
AM TRACKING
fL
fL
SO301
CD-C410H,CP-C410
– 11 –
TEST MODE
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
Figure 11-2
Figure 11-3
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
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.
• 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.
each disc is played back using the optimal settings.
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
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
Figure 11-4
IL is not performed.
<STOP>
1
2
3
CD-C410H,CP-C410
– 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.
REF. NO
DESCRIPTION
POSITION
SW1
OPEN/CLOSE
ON—OFF
SW2
MECHA UP
ON—OFF
SW3
DISC NUMBER
ON—OFF
SW4
PICKUP IN
ON—OFF
SW701
RANDOM/DEMO
ON—OFF
SW702
VOLUME DOWN
ON—OFF
SW703
X-BASS
ON—OFF
SW704
VOLUME UP
ON—OFF
SW705
OPEN/CLOSE
ON—OFF
SW706
DISC SKIP
ON—OFF
SW709
REC./PAUSE
ON—OFF
SW710
UP
ON—OFF
SW711
STOP
ON—OFF
SW712
PLAY
ON—OFF
POSITION
SW713
DOWN
ON—OFF
SW714
TUNING UP
ON—OFF
SW715
TUNING DOWN
ON—OFF
SW717
POWER
ON—OFF
SW718
CLOCK
ON—OFF
SW719
TIMER/SLEEP
ON—OFF
SW721
MEMORY/SET
ON—OFF
SW722
CD
ON—OFF
SW723
TUNER
ON—OFF
SW724
TAPE
ON—OFF
SW725
AUX
ON—OFF
SWM 3
FOOL PROOF
ON—OFF
SWM 4
F.A.S.
ON—OFF
SWM 5
CAM
ON—OFF
REF. NO
DESCRIPTION
Figure 12 TYPES OF TRANSISTOR
E C B
(S) (G) (D)
(1) (2) (3)
FRONT
VIEW
B C E
(D)(G) (S)
(3) (2) (1)
FRONT
VIEW
2SD2012 Y
KDV147B
KRC104 M
KRC107 M
KTA1266 GR
KTA1273 Y
KTC3199 GR
KTC3203 Y
KRC107 M
KTA1266 GR
KTA1273 Y
KTC3199 GR
KTC3203 Y
2SA1015 GR
2SB561 C
2SC2389 SS
2SC535 C
KRA102 M
KRA109 M
KRC102 M
2SB561 C
2SC2389 SS
2SC535 C
KRA102 M
KRA109 M
KRC102 M
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