employs lead-free solder.
The LF symbol indicates lead-free solder, and is attached on the PWB and service manuals. The alphabetical character
following LF shows the type of lead-free solder.
Example:
Indicates lead-free solder of tin, silver and copper.
2. Using lead-free wire solder
When fixingthe PWBsoldered withthe lead-free solder, apply lead-free wire solder. Repairing withconventional leadwire solder
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40 C,
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
Ref No.
PWB-A
PWB-B
PWB-C
PWB-F
PWB-G
PWB-H
Parts No.
DCEKKV575SJ03
DCEKNV575SJ03
DCEKSV575SJ03
9GD192114325
Main
Power(B1)/Display(B2)/Headphones(B3)/Terminal(B4)
CD Servo
T/T Motor
Switch
Tape Mechanism
Description
PWB" of this model
1 – 1
CD-MPS440W
[2] SAFETY PRECAUTION FOR SERVICE MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping.
3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
4) Under no circumstances look directly into the Pickup Lens at any time.
5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation
exposure.
[3] VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage as follows.
Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110V,127V,220V or 230V - 240V AC).
[4] SPECIFICATIONS
General
Power sourceAC 110/127/220/230-240 V, 50/60 Hz
Power
consumption
DimensionsWidth: 270 mm (10-5/8")
Weight7.2 kg (15.9 lbs.)
151 W
Height: 305 mm (12")
Depth: 342 mm (13-1/2")
Amplifier
Output powerRMS: 150 W (75 W + 75 W) (10 % T.H.D.)
Output terminalsSpeakers: 6 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
Input terminalsVideo/Auxiliary (audio signal):
500mV/47kohms
CD player
Type3-disc multi-play compact disc player
Signal readoutNon-contact, 3-beam semiconductor laser
D/A converter1-bit D/A converter
Frequency
response
Dynamic range90 dB (1 kHz)
pickup
20 -20,000 Hz
Tuner
Frequency rangeFM: 87.5 - 108.0 MHz
AM: 530 - 1,720 kHz
Cassette deck
Frequency
response
Signal/noise ratio50 dB (TAPE 1, playback)
Wow and flutter0.3 % (WRMS)
125 - 8,000 Hz (normal tape)
50 dB (TAPE 2, recording/playback)
Speaker
TypeTwin-drive speaker system
10 cm (4") full-range speaker 2
Maximum input
power
Rated input power 75 W
Impedance6 ohms
DimensionsWidth: 200 mm (7-7/8")
Weight3.5 kg (7.7 lbs.)/each
150 W
Height: 305 mm (12")
Depth: 220 mm (8-11/16")
Specifications for this model are subject to change without prior
notice.
1 – 2
CD-MPS440W
[5] NAMES OF PARTS
Front panel
10
11
1
2
3
4
5
6
7
8
9
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1. Disc Tray
2. Timer Set Indicator
3. Memory/Set Button
4. On/Stand-by Button
5. Clock Button
6. Timer/Sleep Button
7. Tuning and Time Up Button
8. Tuning and Time Down Button
9. Headphone Socket
10. Tape 2 Record Pause Button
11. Tape 1 Cassette Compartment
12. Equaliser Mode Select Button
13. Extra Bass/Demo Mode Button
14. Volume Up and Down Buttons
15. Disc Tray Open/Close Button
16. Disc Skip Button
17. Tape 2 Cassette Compartment
18. Disc Button
19. Tape (12) Button
20. Disc or Tape Stop Button
21. Disc Track Down or Fast Reverse, Tape 2 Rewind,
Tuner Preset Down Button
22. Tuner (Band) Button
23. Video/Auxiliary Button
24. Disc Play or Repeat, Tape Play Button
25. Disc Track Up or Fast Forward, Tape 2 Fast Forward,
Tuner Preset Up Button
215 67893 4
1
2
3
4
1
2
1
Display
1.Disc Number Indicators
2.Disc Play Indicator
10
11
151412 13
5
6
2
3.MP3 Track Indicator
4.WMA Track Indicator
5.Tape Play Indicator
6.FM Stereo Mode Indicator
7.FM Stereo Receiving Indicator
8.Memory Indicator
9.Extra Bass Indicator
10.Timer Recording Indicator
11.Timer Play Indicator
12.Disc Pause Indicator
13.Disc Repeat Indicator
14.Tape Record Indicator
15.Sleep Indicator
Rear panel
1.Video/Auxiliary (Audio Signal) Input Sockets
2.Cooling Fan
3.AC Voltage Selector
4.AC Power Input Socket
5.FM/AM Loop Aerial Socket
6.Speaker Terminals
Note:
This product is equipped with a cooling fan inside, which begins to
run at a specified volume level for better heat radiation.
Speaker system
1.Full-Range Speakers
2.Bass Reflex Ducts
3.Speaker Wire
3
1 – 3
Remote control
CD-MPS440W
1
2
3
10
11
4
5
6
7
8
9
12
13
14
19 20 21 22
15
16
23
17
18
24 25 26
1.Remote Control Transmitter
2.On/Stand-by Button
3.Direct Search Buttons
4.Disc Track Down or Fast Reverse, Tape 2 Rewind,
Tuner Preset Down Button
5.Disc or Tape Stop Button
6.Volume Down Button
7.Tuning and Time Down Button
8.Disc Button
9.Tuner (Band) Button
10.Disc Number Select Buttons
11.MP3/WMA Display Button
12.Volume Up Button
13.Disc Track Up or Fast Forward, Tape 2 Fast Forward,
Tuner Preset Up Button
14.Disc Play or Repeat, Tape Play Button
15.Disc Pause Button
16.Tuning and Time Up Button
17.Video/Auxiliary Button
18.Tape (1 2) Button
19.Tape 2 Record Pause Button
20.Memory/Set Button
21.Clear Button
22.Disc Random Play Button
23.Equaliser Mode Select Button
24.Extra Bass Button
25.Clock Button
26.Timer/Sleep Button
1 – 4
CD-MPS440W
CD-MPS440W
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT
1. MECHANISM SECTION
• Driving Force Check
Torque MeterSpecified Value
Play: DM-300Tape 1: Over 80 g
Tape 2: Over 80 g
• Torque Check
Torque MeterSpecified Value
Tape 1Tape 2
Play: DM-30010 to 20 g.cm10 to 20 g.cm
Fast forward: DM-300—Over 50 g.cm
Rewind: DM-300—Over 50 g.cm
• Tape Speed
Tape
speed
Test TapeAdjust-
ing Point
TCC-119Variable
Resistor in
motor.
TAPE MECHANISM
Specified
Val ue
Instrument
Connection
3,000 ± 30 Hz Speaker Ter-
minal (Load
resistance: 6
ohms)
• Check FM VT
Service Manual
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Input: AntennaOutput: Speaker terminal
*2. Input: Input is not connectedOutput: TP301
2 – 1
[2] TEST MODE
The test mode applied to this microcomputer has three modes, namely
the ordinary test mode for adjustment or measurement, the aging test
mode, and the self-diagnosis test mode for self-judgment in case of
final product inspection.
1. Turning on the test mode
For obtaining each test mode, press the ON/STAND BY button, while
keeping pressing the following two buttons in the ordinary stand-by
mode (power off). In this case, the main unit buttons are valid. When
turning the POWER on with remote control buttons, test modes are not
obtained.
[Ordinary test mode]
1. CD Test Mode (TEST 1)...........................................................
DISK + VOLUME UP
2. Tuner Test Mode (TEST 2)........................................................
TUNER(BAND) + VOLUME UP
3. Electronic Volume Test Mode (TEST 3).....................................
TUNING DOWN + VOLUME UP
4. Timer Test Mode (TEST 4).......................................................
TIMER/SLEEP + VOLUME DOWN
5. FL Test Mode (TEST 5)...........................................................
CLOCK + VOLUME DOWN
6. CD MECHANISM Aging Test Mode (TEST 8)...........................
MEMORY/SET + VOLUME DOWN
[Self-diagnosis Test Mode]
1. Button input diagnosis test mode (TEST 6)...............................
TUNING UP +VOLUME UP
Processes are different depending on destinations at initial settings.
2. CD Test Mode (TEST 1)
In the CD test mode the operation of each step is possible even if the
LID-SW is off. If focus cannot be taken in step 3 or any error is processed, it is impossible to proceed to the next step. During error processing, end the test mode by pressing the ON/STAND BY button or
return to the step 1 by pressing the CD STOP button. Any other operations are inhibited.
1. Step 1 Mode
When the CD test mode is obtained, the following display lights up.
Then CD initialization operation flow proceeds up to CD STB off to
wait for the following buttons to be pressed.
One second after display lights up
CD-MPS440W
Press the following buttons in this state to obtain the operations
specified below.
"ON/STAND BY".................. Test mode and power turned off to shift
to the ordinary standby mode.
"FF/FWD"............................. After the pickup returns to the innermost
periphery, it slides toward the outer
periphery while this button is pressed.
"REW/REV"......................... After the pickup returns to the innermost
periphery, it slides toward the inner
periphery while this button is pressed. If
PICKUP IN is on, input is invalid.
"MEMORY/SET".................. Shift to step 2
"STOP"................................. Invalid
"VIDEO/AUX"....................... CLV
2. Step 2 Mode
Press the "MEMORY/SET" button in this mode to transmit the laser
lighting command LDON (8400) and turn on the laser. Any other
operations are not performed in this case.
Press the following buttons in this state to obtain the operations
specified below.
"ON/STAND BY"................. Test mode and power turned off to
shift to the ordinary standby mode.
"FF/FWD"............................ The pickup slides toward the outer
periphery while this button is pressed.
"REW/REV"........................ The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
"MEMORY/SET"................. Shift to step 3
3. Step 3 Mode
While the laser keeps lighting, CD initialization operation flow proceeds up to 'CLV servo ON' to wait for the following buttons to be
pressed.(Focus servo turned on for focus search)
The focus search is repeated to take focus.
Press the following buttons in this state to obtain the operations
specified below.
"ON/STAND BY"................... Test mode and power turned off to shift
to the ordinary standby mode.
"FF/FWD".............................. The pickup slides toward the outer
periphery while this button is pressed.
"REW/REV"........................... The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
"MEMORY/SET"................... If focus has been taken, shift to step 4 is
executed. If not, acceptance is inhibited.
*If the focus is not received after it has been taken, the process
returns to step 1.
2 – 2
CD-MPS440W
4. Step 4 Mode
The CLV servo ON command (8600) is transmitted to wait for the
following buttons to be pressed. (The disc is rotated for CLV lock.)
The time display always indicates "0:00".
Press the following buttons in this state to obtain the operations
specified below.
"ON/STAND BY"................... Test mode and power turned off to
shift to the ordinary standby mode.
"FF/FWD"............................. The pickup slides toward the outer
periphery while this button is pressed.
"REW/REV".......................... The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
"MEMORY/SET".................. Return to step 5
*If the focus is not received, the process returns to step 1.
5. Step 5 Mode
When the CD initialization operation flow is completed, the mute is
turned off, and playback is started. Even if playback reaches the
outermost periphery of disc, the operation does not stop. The LCD
display indicates the playback passage time as in case of ordinary
CD playback.
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH. When adjusting
the tuner section in the production line, adjusting personnel are not
required to set frequency.
2. Details of tuner test mode
Press the "TUNER(BAND)" and "VOLUME UP" buttons in POWER
OFF state and turn on the power by the use of "ON/STAND BY"
button to preset and store frequency for adjustment and measurement of destination specified by the AREA terminal in the preset
memory CH. However, Ordinary 1 and Ordinary 2 are stored in the
destinations when the test mode is obtained.
(As for frequencies to be preset and stored for each destination, refer
to item 3.)
The tuner test mode is started from preset No.1.
The operations of test mode are identical with the ordinary operations
of TUNER function. FUNCTION switching is invalid.
It is necessary to discard the content of preset memory when the tuner
test mode is ended; be sure to write "0000" or "1111" bits in the memory to be checked for judging memory error at initial setting and to initialize memory.
When the tuner test mode is obtained, the following display lights for
one second.
Press the following buttons in this state to obtain the operations
specified below.
"ON/STAND BY".................. Test mode and power turned off to shift
to the ordinary standby mode.
"FF/FWD"............................. The pickup slides toward the outer
periphery while this button is pressed.
"REW/REV"......................... The pickup slides toward the inner
periphery while this button is pressed.
If PICKUP IN is on, input is invalid.
"PLAY"...............................Invalid
"STOP"...............................Return to step 1
*If the focus is not received, the process returns to step 1.
Other cautions
• TOC IL is not available for this test mode.
• The TUNER TEST 2 mode is obtained with >> + MEMORY/SET +
ON/STAND-BY. ->Turn off AC in the TEST 2 mode to restore the
initial state.
Turn off POWER to protect the memory of TEST 2 mode.
Turn off POWER again to obtain the ordinary operation while the
data is stored in the memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is
executed in the initial state.
• To clear the whole memory, insert the AC cord, pressing MEM-
ORY/SET + CD PLAY.
2 – 3
3. Preset frequencies for various destinations
(random preset memory)
CHBANDFM
1
2
FM STEREO
3
4
5
CHBANDFM
6
7
AM
8
9
10
FM 87.5 MHz
FM108.0 MHz
FM 98.0 MHz
FM 90.0 MHz
FM106.0 MHz
AM 530 kHz
AM1720 kHz
AM 990 kHz
AM 600 kHz
AM1400 kHz
CD-MPS440W
6. FL Test Mode (TEST 5)
When the FL test mode is obtained, all the FL segments are lighted.
Then pressing the "PLAY" button switches display as below.
————–
Lighting of all segments
Lighting of odd segments
Lighting of even segments
CHBANDFM
16-35——————
36
37
FM MONO
38
39
40
• The slant line sections of the table store no memory.
FM106.0 MHz
FM 90.0 MHz
FM 98.0 MHz
FM108.0 MHz
FM 87.5 MHz
4. Electronic volume Test Mode (TEST 3)
When this test mode is obtained, the following display lights for one
second.
In this mode, volume is Volume -14 dB (STEP 23), FLAT AND X-BASS
ON, and start-up function to CD, respectively. The button operations in
the test mode are the same as those of ordinary operation except volume UP/DOWN.
1) The display is the same as that of ordinary operation except test
mode setting.
2) Unlike the ordinary state, the volume is controlled with the Volume
UP/DOWN button in accordance with the following three steps.
When this test mode is obtained, the following display lights for one
second.
__________
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
This test mode is intended to check whether all the main unit buttons
can be detected. Accordingly, in this test mode, it is checked whether
the "ON/STAND BY" button was pressed after all the buttons shown
below were pressed. If the result is OK, OK is displayed. If any one of
keys was not pressed, an error is displayed. In both cases of OK termination or error termination, the mode is shifted to the standby mode if
the "ON/STAND BY" button is pressed subsequently.
All models using this type of microcomputer are not always provided
with the same buttons. Since the buttons used are different depending
on models, types of buttons to be used are determined by whether
SURROUND, and an electric lid are available at the initial setting by
MODEL port.
The order of buttons to be pressed is not determined. Accordingly, it is
checked whether all buttons have been pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE OR NOT),
and electric CD lid, the following 10 buttons are detected as all buttons.
The OK/ERROR display of test result is as follows.
Set the current time and timer time according to the following procedure to reproduce the timer.
1. Set the current time to 1:00, the timer to ON time 1:05, the function
to CD, and volume to STEP 12, respectively. One minute is
counted as one second, and the timer is reproduced. The fade-in
(when playback is started) is executed at a rate of one step for 1
sec. After completion of fade-in, the fade-out is executed at a rate
of one step for 1 sec (WAIT 1 sec inserted).
After completion of fade-out, the power is turned off (after WAIT 1
sec), and the mode is shifted to the standby.
The display during operation is the same as that of ordinary timer
operation.
2 – 4
CD-MPS440W
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC CHANGER OPEN/
CLOSE. After open finished, tray rotate 1 circle (360 degree). Then
close, After close finished, tray rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
2 – 5
(D1)x2
ø2x4mm
(D2)x3
Special Screw
Motor
Motor
Motor
Bracket
Motor
Bracket
(D1)x2
ø2x4mm
Home StereoCD-MPS440WService ManualCD-MPS440W S/MMarketE
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE MAIN PARTS
CD-MPS440W
1. TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to remove the
tape mechanism.
1.1. How to remove the record/playback and erase heads
(TAPE 1) (See Fig. 1)
1. When you remove the screws (A1) x 2 pcs., the record/playback
head can be removed.
1.2. How to remove the playback head (TAPE 2) (See Fig.
2)
1. When you remove the screws (B1) x 2 pcs., the erase head can be
removed.
2. When you remove the screws (B2) x 2 pcs., the record/playback
head can be removed
NOTE: After replacing the heads and performing the azimuth adjust-
ment, be sure to apply screw lock.
1.3. How to remove the pinch roller (TAPE 1,2) (See Fig. 3)
1. when you remove the screw (C1) x 1pc., the pinch roller can be
removed.
Note:
When installing the pinch roller, pay attention to the spring mounting
position.
1.4. How to remove the motor (See Fig. 4)
1. Remove the belt.
2. Remove the screws (D1) x 4 pcs., to remove the motor bracket.
3. Remove the screws (D2) x 3 pcs., to remove the motor.
(A1)x1
ø2x7mm
Record/
Playback Head
(B2)x1
ø2x7mm
(B1)x2
ø2x8mm
Erase Head
Record/
Playback Head
TAPE 1TAPE 2
(A1)x1
ø2x3mm
Figure 1
(B2)x1
ø2x3mm
Figure 2
TAPE 1
TAPE 2
1.5. How to remove the belt (TAPE 1) (See Fig. 5)
1. Remove the main belt (F1) x 1 pc., from the motor side.
1.6. How to remove the belt (TAPE 2) (See Fig. 5)
1. Remove the main belt (G1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (G2) x 1 pc.
REW/FF
Clutch Ass'y
REW/FF
Belt
(G2)x1
Motor
TAPE 2
Main Belt
(G1)x1
Main
Belt
(F1)x1
Figure 5
TAPE 1
Main Belt
(F1)x1
Motor
TAPE 1
TAPE 2
Main
Belt
(G1)x1
3 – 1
Pinch Roller
(C1)x1
Figure 3
Figure 4
<A>
Pinch Roller
Pawl
CD-MPS440W
1.7. How to remove the flywheel (TAPE1,2) (See Fig. 6)
1. Remove the stop washer (H1) x 1 pc., with a small precision screwdriver to extract the flywheel from the capstan metal.
NOTE: When the stop washer is deformed or damaged, replace it with
a new one.
1.8. How to reinstall the parts
1. Install each part in the reverse order of the removal with care.
TAPE 1
TAPE 2
Mechanism
Chassis
Washerx2
Flywheel
(H1)x1
Stop Washer
Stop
Washer
Driver
1.9. How to remove the tape mechanism PWB (TAPE
1,2)(See Fig. 7)
1. Remove the screw (J1) x 1 pc., to remove the tape mechanism
PWB.
2. Remove the screw (J2) x 1 pc.
3. Remove the solder joints (J3) x 2 pcs., to remove the tape mechanism PWB.
Tape
Mechanism
PWB
Figure 6
(J1)x1
ø2x3mm
Figure 7
TAPE 1,2
(J2)x1
ø2x8mm
Tape
Mechanism
PWB
(J3)x2
Solder
Joint
3 – 2
2. CD PLAY SECTION
(A1)x2
ø2.4x3mm
(A3)x2
ø3x10mm
(A2)x1
Loading Tray
(Bottom View)
Loading Tray
T/T Motor PWB
T/T Rotate Motor
(B1)x2
ø2.4x5mm
Up/Down Loading Motor
CD Player Unit
(B2)x1
Holder
CD Mechanism Unit
Holder
PWB
(C1)x4
ø2.5x10mm
Perform steps 1, 2, 3, 10, 11 and 12 of the disassembly method to
remove the CD mechanism.
2.1. How to remove the T/T rotate motor (See Fig. 1)
1. Remove the screws (A1) x 2 pcs.
2. Remove the belt (A2) x 1 pc.
3. Remove the screws (A3) x 2 pcs., to remove the T/T rotate motor.
CD-MPS440W
2.2. How to remove the up/down loading motor (See Fig.2)
1. Remove the screws (B1) x 2 pcs.
2. Remove the belt (B2) x 1 pc.
2.3. How to remove the CD mechanism unit (See Fig.3)
Perform steps 1, 2, 3, 10 and 13 of the disassembly method to remove
the CD mechanism.
1. Remove the screws (C1) x 4 pcs., to remove the mechanism unit.
NOTE: After removing the connector for the optical pickup from the
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from electrostatic damage.
Figure 1
Figure 2
Figure 3
3 – 3
Side Panel
(Right)
Side Panel
(Left)
Top Cabinet
Front
Panel
(A1)x2
ø3x16mm
(A1)x2
ø3x16mm
(B1)x2
ø3x8mm
(B1)x2
ø3x8mm
(B1)x4
ø3x10mm
(A1)x1
ø3x8mm
Rear Panel
1
1
2
2
(D1)x6
ø3x8mm
(D1)x2
Special
(E1)x2
ø3x6mm
CD Player Unit
CD Tray Cover
(E1)x1
Special
(C2)x1
(C3)x1
CD Servo
PWB
(C1)x1
Pull
(C2)x1
Pull
Main
PWB
Rear
Panel
CD-MPS440W
[2] DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and
reassembling it, to keep it safe and ensure excellent performance:
1) Take cassette tape and compact disc out of the unit.
2) Be sure to remove the power supply plug from the wall outlet
before starting to disassemble the unit.
3) Take off nylon bands or wire holders where they need to be
removed when disassembling the unit. After servicing the unit,
be sure to rearrange the leads where they were before disassembling.
4) Take sufficient care on static electricity of integrated circuits and
other circuits when servicing.
STEPREMOVALPROCEDUREFIGURE
1Top Cabinet1. Screw......................(A1) x 51
2Side Panel
(Left/Right)
3CD Player unit1.
4Rear Panel 1. Screw......................(D1) x 82
5Main PWB 1.
6Front PWB1.
7Display PWB1. Screw....................(G1) x 135
8Tape Mecha-
nism
9Headphones
PWB
10CD Servo
PWB
11Turntable1.
12Loading Tray1.
13CD Mechanism
Block
Note 1: How to open the change manually. (Fig. 3)
1. In this state, turn fully the loading Gear in the arrow direction
through the hold on the loading tray bottom.
2. After that, push forward the loading tray.
Note 2:
1. After removing the connector for the optical pickup from the connector, wrap the conductive aluminium foil around the front end of
the connector so as to protect the optical pickup from electrostatic
damage.
1. Screw......................(B1) x 81
Turn on the power supply,
open the disc tray, take out
the CD tray cover, and
close.......................(Note 1)
CD Tray Cove.........(C1) x 1
2.
Hook.......................(C2) x 2
3.
Socket.....................(C3) x 1
4.
Socket.....................(C4) x 2
5.
Screw......................(E1) x 3
Socket.....................(E2) x 9
2.
Socket.....................(E3) x 2
3.
Screw......................(F1) x 3
Hook........................(F2) x 2
2.
Socket.....................(F3) x 1
3.
1.2.Open the cassette holder.
Screw......................(H1) x 8
1. Screw.......................(J1) x 15
Screw......................(K1) x 4
1.
Socket.....................(K2) x 3
2.
Flat Cable...............(K3) x 1
3.
Solder......................(K4) x 2
4.
Screw......................(L1) x 1
2.
Spacer.....................(L2) x 1
Push forward the loading
tray.
Inserting the flat head into
2.
the hole, push in the direction indicated by the
arrow......................(M1) x 2
1. Hook.......................(N1) x 28
Figure 1
2
4
2
4
5
4
5
6
7
7
Figure 2
Front Side
Loading Gear
or
CD Player Unit
(Bottom View)
Figure 3
3 – 4
CD-MPS440W
Screwdriver
Turntable
Loading Tray
Screwdriver
(L1)x1
ø3x10mm
(L2)x1
(M1)x1
(M1)x1
(F2)x1
(E2)x1
Power PWB
(E2)x2
(E2)x1
(E2)x1
(C4)x2
(F3)x1
(E2)x4
Figure 4
Main PWB
Front Panel
(F2)x1
(F1)x3
ø3x8mm
T/T Motor
PWB
Switch PWB
(K2)x3
CD Servo
PWB
Figure 6
(K1)x4
ø3x10mm
(K3)x1
CD
Mechanism
Block
Solder
(K4)x2
CD Player Unit
(G1)x13
ø2.5x10mm
Display PWB
(H1)x8
ø3x8mm
Headphones
PWB
PWB
Front Panel
(J1)x1
ø
2.5x8mm
Figure 5
(E3)x2
Tape
Mechanism
Open
Cassette
Holder
CD
Mechanism
Block
Figure 7
Hook
(N1)x1
Pull
Hook
(N1)x1
CP-ES440
These speaker CP-ES440 are available in assembles only and may
not be disassembled.
Pull
Figure 8
3 – 5
CD-MPS440W
F
F
B
B
B
B
N
B
B
O
S
9
DGND
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM MAIN
AM LOOP
ANTENNA
FROM
CD SECTION
CNS205
RECORD/
PLAYBACK HEAD
TAPE 2
ERASE
HEAD
TAPE 2
SW801
INITIALIZE
SW803
REC
SOL801
SOLENOID
PHOTE INTERRUPTER
TAPE 1
SW802
INITIALIZE
SOL802
SOLENOID
PHOTE INTERRUPTER
FM
ANTENNA
3
2
1
CNP301
TAPE 1
PLAYBACK
HEAD
L-CH
R-CH
P.B.
L-CH
R-CH
CNP205
1
2
3
REC
SWITCHING
B.P.F
BF301
AM TRACKING
T302
L
R
+B2
Q821
Q822
Q823
BIAS CONT
SWITCHING
TA7358AP
1
FM FRONT END
2
3
FM RF
L302
SWITCHING
Q801
Q807,Q808
Q803
Q813,Q814
Q802
Q810
Q811
SWITCHING
Q820
6
IC301
4
T306
SWITCHING
Q809
U_CON5V
Q806
5
SWITCHING
FM IFFM IF
7
FM
T304
OSC
CF303
9
8
FM MPX./AM IF
L303
OSC BUFF
Q302
AM BAND
COVERAGE
FM
SWITCHING
L(T1)
1
R(T1)
24
2
L(T2)
R(T2)
23
LNF
3
RNF
22
6
L REC
REC
9
16
RREC
REF
14
15
12 11
M801
TAPE
MOTOR
+B3
Q306
IC303
LA1832S
FM IF DET./
FM MUTE
LEVEL
VR351
FM OSC
VT
20
FM
Q360
13
P.B
L
4
R
21
5
20
LREC
7
R
18
LNF
8
RNF
17
ALC
10
19
M
CF302
CF352
T351
AM IF
1
2
AM MIX
LA1832S
AM OSC
OUT
21
2324
AM OSC IN
X352
4.5 MHz
22
1
OSC
IC302
LC72131
PLL(TUNER)
7
+B2
PB
PLAYBACK AND RECORD
/PLAYBACK AMP.
+B2
TAPE MOTOR
DRIVER
Q815Q818
Q804Q817
SOLENOID
DRIVER
+B2
Q805Q816
SOLENOID
DRIVER
4
AM IF
GND
IC303
AM RF IN
FM IN
AM IN
1516
FM/AM
IC801
AN7345K
Q812
Q819
VCC
FM/AM
OUT
18
10
76
SD
IF OUT
STEREO
DI
CE
4
11
3
MO/ST
21
10
98
985
CF351
FM
DET
CL
5
DZH05C2+
17
MO/ST
VCO
FM/AM
MPXIN
12
16
DO
6
17
MUTE
TAPE_SW
T2_RUN_PLUS
T1_RUN_PLUS
T_MOTOR
REC/PLAY
X351
456 kHz
13
L
14
R
15
Q351
SWITCHING
T2_SOL
T1_SOL
CH_SW
BIAS
REC
CNP803
FR
DISPLAY
CE
FM ST
TUNER
CNS803
FROM
DISPLAY SECTION
CNS901
CL
AUX
TAPE
CD
CNS2
DO
DG
234567
DI
L
R
1
1
L
R
1
L
1
R
1
L
1
R
1
+
+
+
V
V
Ð
+
+
+B2
CNP202
SD
1
2
3
4
5
6
7
8
9
10
Figure 4-1 BLOCK DIAGRAM (1/4)
4 – 1
CD-MPS440W
CNS901
FROM
ISPLAY SECTION
CNS202
1234
DI
CL
DO
D_GND
9
L
AUX
R
16
10
L
TAPE
R
15
L
11
UNER
CD
AUDIO PROCESSOR
R
14
L
12
R
13
LC75341M
8
7
17
VIDEO/AUX IN
IC601
18
FROM
CD SECTION
CNS204
DI
CL
DO
SO601
DI
CE
CL
3
+B2
M_GND
23
CNP204
+7V
+B5
1
2
24
21
4
654321
D_GND
R
L
L
POWER AMP.
15
R
1
IC101
STK40290
+VCC
PRE
+VCC
8
4
ÐVCC
9
+B3
Q101
Q102
SYSTEM
MUTE
PRE
ÐVCC
12
10
11
6
7
Q201
Q202
Q103
Q104
R-OUT
L-OUT
Q204
Q205
Q105
Q106
+B4
Q108
Q109
RLY101
+B2
+B3
CD_+B
MUTE
SIGAL_LVL
SP_RLY
SP_DETECT
FAN_START
FAN_PRT
Q107
Q208
M201
FAN
M
MOTOR
CNW202
1
2
3
4
5
6
7
JK101
HEADPHONES
SO101
SPEAKER
TERMINAL
FROM
DISPLAY SECTION
CNS102
+B4
+B5
+B2
VF1
VF2
ÐB2
+B3
DGND
+B3
CD+B
A_12V
CNP901
1
2
3
4
5
CD_7V
+5.6 V
Ð30 V
+5.6 V
Q207
VOLTAGE
REGULATOR
VF2
VF1
Q206
IC203
KIA7808API
VOLTAGE
REGULATOR
IC202
KIA7812API
VOLTAGE
REGULATOR
IC201
KIA7805API
VOLTAGE
REGULATOR
+B1
ÐB1
D905~D908
T5AL250V
D901~D904
F902
T5A L 250V
T1.6A L 250V
Q901
VOLTAGE
REGULATOR
F901
F903
POWER TRANSFORMER
T101
+B2
230-240V
110V
127V
220V
SO901
230-240 V, 50/60 Hz
SW901
VOLTAGE
SELECTOR
AC POWER
SUPPLY CORD
AC 110/127/220/
Figure 4-2 BLOCK DIAGRAM (2/4)
4 – 2
CD-MPS440W
[2] BLOCK DIAGRAM DISPLAY
TO MAIN SECTION
CNS205
32
X401
16.9344 MHz
R-CH
AGND
1
57
65
67
71
77
72
73
L-CH
20
26
37
40
42
53
~
AVSS
VVSS1
DVSS
VVSS3
DVSS
VVSS2
DVSS
XVSS
LRVSS
XOUT
XIN
AVDD
21
79
+5.6VDIDO
+7V (+B5)
DGND
MGND
5
64
312
Q411,412,413
CONSTANT
VOLTAGE
78
75
LCHO
RCHO
LC78690
MP3 DECODER
DIGITAL SIGNAL
PROCESSOR
AVDD
VREF
11
CNS204
76
LRVDD
IC401
CIN
AIN
765
4643
6245
DI
CL
DO
LDS
FIN
EIN
DIN
BIN
14
19
13
8
Q409
47
18
RESB
LDD
CE
VVDD1
DVDD
VVDD3
DVDD
VVDD2
DVDD
XVDD
CONT2
PUIN
FDO
TDO
SPDO
SLDO
LASER
DRIVER
CONSTANT
VOLTAGE
30
36
39
41
61
68
74
50
32
22
23
25
24
CD_CE
ROTATE
CD RES
CLOSE_SW
MM+
MM-
CD_CL
11
12810 96745231
CNP405
Q410
+7V
+7V
Q401,402
Q403,404
Q405,406
Q407,408
MUTE
2
4
FOCUS/TRACKING/
12
19
27
1
VCC
VCC
30
VREF
29
51110146
DOWN_SW
OPEN_SW
DISC NO._SW
DISC 1_SW
IC402
LA6548HN
SPIN/SLED
DRIVER
UP_SW
REG_OUT
+
M
Ð
Ð
M
+
M401
UP/DOWN LOADING
MOTOR
21
20 26 25
SW401
DISC
UP/DOWN
SW402
OPEN/CLOSE
SW403
DISC NO.
SW404
DISC 1
M402
ROTATE
MOTOR
24
~~
22
9
7
VCC
E
C
A
B
C
VC
F
LD
MD
FOCUS COIL
TRACKING COIL
CD PICKUP UNIT
NM802
SPINDLE
MOTOR
NM801
SLED
MOTOR
M
M
+
Ð
Ð
+
SW1
PICKUP IN
Figure 4-3 BLOCK DIAGRAM (3/4)
4 – 3
TO MAIN SECTION
TO POWER SECTION
DISC_UP_SW
DISC_DOWN_SW
OPEN_SW
DISC_NO._SW
DISC 1_SW
CLOSE_SW
ROTATE
CD_RES
CD_CLK
TAPE_SW
T2_RUN_PLUS
T2_SOL
T1_SOL
T1_RUN_PLUS
CH_SW
MOTOR
TAPE_BIAS
REC_PLAY
REC SW
FAN_PRT
FAN_START
SP_DETECT
SP_RELAY
SIGAL_LVL
P_MUTE
D_GND
CD_CE
MM+
MM-
CD+B
VF1
VF2
ÐB2
+B3
CNS901
1
2
3
4
5
CNS405
1
2
3
4
5
6
7
8
9
10
11
12
CNS803
1
2
3
4
5
6
7
8
9
10
CNS102
7
6
5
4
3
2
1
3.8V
3.8V
Ð30V
5.6V
+B3
VF2
3233
FL DISPLAY
31 16
~
67
52
~
~
P5
70
DISC_UP_SW
74
DISC_DOWN_SW
75
OPEN_SW
68
DISC_NO_SW
69
DISC1_SW
71
CLOSE_SW
73
ROTATE
4
CD_CE
CD_RES
5
MM+
6
MM-
7
CD_CL
97
89
GND
23
T2_TAPE2_SW
83
T1_RUN_PLUS
81
T2_SOL
80
T1_SOL
82
T1_RUN_PLUS
84
CH_SW
79
MOTOR
76
TAPE_BIAS
REC_PLAY
77
REC
78
P20
MICROCOMPUTER
FAN_PRT
FAN_START
SP_DETECT
SP_RELAY
SIGAL_LVL
21 92 93 94 91 88 8595 9611 2697 98 99
P_MUTE
VFD701
15 12
5051
P4
GND
IC701
IXA057SJ
SYSTEM
D1
CD+B
CD-MPS440W
11 3
~
47
~
~
P1
CL
D0
~
38
30
~
~
G9
G1
SD
FM_ST
CE
100
IRQ
POWER_KEY
X-BASS/DEMO
KEY2_IN
KEY1_IN
CF2
CF1
GND
XT2
XT1
VDD1
VDD2
VDD3
VDD4
RESET IN PUT
VF1
112
Q701
29
28
27
19
18
16
X702
8 MHz
15
14
13
X701
12
32.768 kHz
17
90
46
72
RESET
Q702,Q703,Q704
LED701
REMOTE
SENSOR
RX701
SW702
ON/STAND-BY
SW701
X-BASS
/DEMO
KEY
SW703~SW710
SW719~SW721
KEY
SW711~SW715
SW722~SW724
+B3
+B3
D_GND
FM_ST
D1
D0
CL
CE
SD
CNS202
1
2
3
4
5
6
7
Figure 4-4 BLOCK DIAGRAM (4/4)
4 – 4
CD-MPS440W
Home StereoCD-MPS440WService ManualCD-MPS440W S/MMarketE
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT
1
2
1
3
IC401 22
IC401 23
IC401 22
IC401 16
Stopped
CH1=500 mV
DC 10:1
T
FDO
1
TDO
3
Smoothing : ON CH1 : 0.000 V
BW : FULL
1
3
Smoothing : ON CH1 : 0.000 V
BW : FULL
CH2 : 0.0 V
CH3 : 0.000 V
CH4 : 0.00V
Stopped
CH1=500 mV
DC 10:1
FDO
TE
-3 div-1 div0 div+1 div +3 div
CH2 : 0.0 V
CH3 : 0.00V
CH4 : 0.00V
CH2=10 V
DC 10:1
CH Position To
CH3=500 mV
DC 10:1
=Record Length=
Main : 100 K
Zoom : 2 K
CH3=1 V
DC 10:1
=Record Length=
Main : 100 K
Zoom : 2 K
500 ms/div
(500 ms/div)
NORM:20 kS/s
CH1
v/DIV
500 mV
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH1
Delay :0.0ns
Hold off :0.2 µs
500 ms/div
(500 ms/div)
NORM:20 kS/s
CH2
Position
0.20 div
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH1
Delay :0.0ns
Hold off :0.2 µs
1
5
6
7
1
IC401 22
IC401 2 5
IC401 28
IC401 27
IC401 22
DC 10:1
DC 10:1
T
CH2=500 mV
DC 10:1
CH2 : 0.000 V
CH3 : 0.00V
CH4 : 0.00V
CH2 : 0.0 V
CH3 : 0.00V
CH4 : 0.00V
T
Stopped
CH1=200 mV
T
FDO
2
SPDO
1
Smoothing : ON CH1 : 0.000 V
BW : FULL
Stopped
CH1=500 mV
DC 10:1
PDOUT0
3
4
PDOUT1
T
FDO
1
Smoothing : ON CH1 : 0.000 V
BW : FULL
Stopped
CH1=2 V
T
=Record Length=
Main : 100 K
Zoom : 2 K
CH3=1 V
DC 10:1
=Record Length=
Main : 100 K
Zoom : 2 K
1999/04/07 09:51:15
500 ms/div
(500 ms/div)
NORM:20 kS/s
=Trigger==Filter==Offset=
Mode : NORMAL
Type : EDGE CH2
Delay :2.924 ms
Hold off :0.2 µs
1999/04/05 17:33:17
CH4=1 V
500 ms/div
(500 ms/div)
DC 10:1
NORM:20 kS/s
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH2
Delay :0.0 ns
Hold off :0.2 µs
1999/04/07 09:25:28
500 ns/div
(500 ns/div)
NORM:200 MS/s
CH1
v/DIV
500 mV
4
IC401 16
3
IC401 2
RF
Stopped
CH1=10 V
DC 10:1
TE
2
=Filter==Offset=
Smoothing : ON CH1 :0.0V
BW : FULL
T
CH2=1 V
DC 10:1
CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V
=Record Length=
Main : 100 K
Zoom : 2 K
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
100 ms/div
(100 ms/div)
NORM:100 kS/s
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Delay :2.924 ms
Hold off :0.2 µs
8
9
10
11
IC401 69
IC401 60
IC401 59
IC401 58
1
DOUT
Smoothing : ON CH1 : 0.00V
BW : FULL
1
2
T
3
Smoothing : ON CH1 : 0.00V
BW : FULL
Stopped
LRSY
DATACK
DATA
CH1=2 V
DC 10:1
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
T
CH2=2 V
DC 10:1
CH2 : 0.00V
CH3 : 0.00V
CH4 : 0.00V
=Record Length=
Main : 1 K
Zoom : 100
CH3=2 V
DC 10:1
=Record Length=
Main : 5K
Zoom : 100
=Trigger==Filter==Offset=
Mode : NORMAL
Type : EDGE CH1
Delay :2.887 ms
Hold off :0.2 µs
1999/04/05 20:50:17
5 µs/div
(5 µs/div)
NORM:100 kS/s
CH3
v/DIV
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH3
Delay :0.0 ns
Hold off :0.2 µs
Home StereoCD-MPS440WService ManualCD-MPS440W S/MMarketE
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM
CD-MPS440W
•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.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this symbol P
means pico-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.
• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.
1. In the tuner section,
indicates AM
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.
4. In the power section, a tape is being played back.
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.
NOTES ON SCHEMATIC DIAGRAM can be found on page 6-1
1
23456
Figure 6-12 SCHEMATIC DIAGRAM (11/12)
6 – 12
R426
+B
3.3K
11
R
+B
R428
330
Q412
2HC1815 GR
C421
0.0047
C420
0.01
0.1
C419
10K
R422
+B
R439
L405
Q413
2HC1815 GR
24K
R421
C429
470/10
C430
0.1
AVDD
SLCO
8061
EFMIN
1
RF
2
LPF
3
PHLPF
4
AIN
5
CIN
6
BIN
7
DIN
8
FEC
9
RFMON
10
VREF
11
JITTC
12
EIN
13
3
FIN
14
TEC
15
TE
16
TEIN
17
LDD
18
LDS
19
AVSS
20
FDO
AVDD
21
2223 24 2526 2728 29 3031 32 3334 35 3637 38 3940
C422
100/16
0.47/16
C452
R465
2.2M
C425
1/16
R434
C426
R435
0.047
R436
C427
0.1
68K
C428
0.1
82
C432
0.1
C431
10P (CH)
XIN
XVSS
LCHO
XVDD
RCHO
4
TDO
XOUT
LRVSS
LRVDD
IC401
LC78690
MP3 DECODER
DIGITAL SIGNAL
PROCESSOR
7
2
5
SLDO
SPDO
680
680
PDOUT1
VVSS1
6
PCKIST
PDOUT0
VVDD1
1
C433
X401
AMUTEB
DMUTEB
10P(CH)
16.9344 MHz
8
L402
0.82µH
C434
DOUT
DVDD
DEFECT
PUIN
100/16
100/16
R440
82
0.1
C439
C437
C438
C436
DVSS
DVDD1.8
C2F
FSEQ
0.1
0.1
1/16
R442
VVSS2
DVDD
C435
R443
150
20K
VCOC2
DATACK
VPDOUT2
STDATA
STREQ
CONT0
CONT1
CONT2
DVSS
CD SIGNAL
C440
100/16
R445
3.3K
VPREF2
VVDD2
626364656667686970717273747576777879
LRSY
60
59
DATA
58
TEST1
57
56
STCK
55
54
TEST0
53
52
51
50
INTB1
49
INTB0
48
R455
RESB
47
R456
DO
46
R457
DI
45
R458
CL
44
R459
CE
43
DVSS
42
DVDD
41
DVDD1.8
VVSS3
VVDD3
C441
0.1
R444
0
C442
0.1
C443
R448
10
11
0.1
CD-MPS440W
CNP405
CD_CL
12
MM-
11
MM+
10
R464
2.2K
CD_RESET
CD_CE
ROTATE
CLOSE_SW
DISC1_SW
DISC NO_SW
OPEN_SW
DOWN_SW
UP_SW
CNW204
DO
+5.6V
MGND
+7V
DGND
CNP406
OPEN_SW
DGND
CLOSE_SW
9
FROM DISPLAY PWB
8
CNS405
7
6-10 5 - H
6
5
4
3
2
1
SW401
DISC U/D SW
CNS204
1
1
2
DI
3
4
5
6
7
TO MAIN PWB(3/3)
2
CNP204
3
6-6 6 - A
4
5
6
CD PLAYER UNIT ASS'Y(238)
SWITCH PWB-G
11
1
232
2
3
3
SW402 (238-4)
OPEN/
CLOSE
+B
+B
82
9
R449
100K
820
820
820
820
820
6.8K
R454
100P
C450
6.8K
R453
120P
C449
L403
0.82µH
100P
0.1
C444
4.7K
R450
C446
6.8K
R451
20K
R460
+B
R429
1
1
R437
6.8K
R438
15K
7
R441
T/T MOTOR
PWB-F
C445
DISC NO_SW
0.1
C447
470/10
DISC1_SW
MGND
ROTATE+
DGND
CNP403
1
1
1
2
2
2
3
4
3
3
4
4
5
5
6
5
+
-
SW403 (238-5)
M
DISC NO.
SW404 (238-6)
DISC1
M402 (238-3)
ROTATE
MOTOR
89101112
Figure 6-13 SCHEMATIC DIAGRAM (12/12)
6 – 13
CD-MPS440W
[9] WIRING SIDE OF PWB
CD PLAYER UNIT(238)
CD MECHANISM UNIT(238-1)
SW1
NM802
PICKUP IN
SPINDLE
MOTOR
CD PICKUP UNIT
116
M401 (238-2)
UP/DOWN
LOADING
MOTOR
NM801
SLED
MOTOR
SWITCH PWB-G
RD
YL
CNS204
CNP406
BR
SW402 (238-4)
OPEN/CLOSE
BK
RD
WH
123
MR401
CORE
CNS803
YL
123456789
10
BK
BL
1234567
89
101112
CNS405
CNS205
RD
3
BK
21
WH
WH
T/T MOTOR PWB-F
SW404 (238-6)
DISC 1
SW403 (238-5)
DISC NO.
M402 (238-3)
ROTATE
MOTOR
CNS402
21 3456
1
23456
1
1
FC401
16
WH
BK
16
BK
1
16
CNW404
CNP401
23
1
5
1
WH
CNW402
CNP405
1234567
1234 56
RD
1123456
CNP403
7
CD SERVO PWB-C
WH
CNW205
1234
1234
567
CNW204
89
101112
WH
BK
654321
TAPE 2
M801(219-10)
MOTOR
TAPE MECHANISM
PWB-H1,2(219-11)
SW901
VOLTAGE
SELECTOR
SO901
AC INPUT
SOCKET
AC 110/127/220/230-240 V,
50/60 Hz
TAPE
ERASE HEAD
+
-
WH
RD
OR
YL
PHOTO
INTERRUPTER
(219-6)
WH
BK
TAPE MECHANISM ASS'Y (219)
CN1
7654321
SW801 (219-8)
INITIALIZE
SW803 (219-9)
REC
SOL801 (219-5)
SOLENOID
RECORD/PLAYBACK
HEAD (219-7)
BK
RD
WH
GR
GR
BK
AC POWER
SUPPLY CORD
CNW802
BK
7
WH
6
BK
5
WH
4
BK
3
GR
2
RD
1
T101
POWER TRANSFORMER
AC 110/127/220/
230-240 V, 50/60 Hz
TAPE 1
RD
OR
YL
PHOTO
INTERRUPTER
TAPE MECHANISM
PWB-H1,2(219-11)
PLAYBACK
HEAD (219-7)
POWER PWB-B1
F901
F902
F903
T1.6A
WH
RD
BR
7654321
SW802 (219-8)
INITIALIZE
SOL802 (219-5)
SOLENOID
BK
RD
BK
WH
CNW801
1
2
3
1234567
CNP201
CNP901
12345
12345
JK101
HEADPHONES
CNW101
HEADPHONES PWB-B3
CNS201
GY
BK
7654321
Figure 6-14 WIRING SIDE OF PWB (1/14)
6 – 14
CD-MPS440W
123456789
10
89
101112
1234567
COLOR TABLE
BR
CNS102
1
234567
BL
BR
8
03
YL
BK
1
123456789
10
11
CNW803
CNW102
VFD701
WH
CNS901
1234 5
RD
123456
CNW901
BL
05
WH
123456789
101112
13
CNW405
DISPLAY PWB-B2
RD(R)
OR
YL
GR
BL
VL
GY
WH(W)
BK
PK
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
1234567
8
CNW202
BL
WH
1234567
CNS202
TERMINAL PWB-B4
SO601
1
23
LEFT
VIDEO/AUX
RIGHT
IN
CNS201
GY
BK
7654321
GY
BK
CNS101
2345
1
BK
CNP803
10
89
1234567
CNW805
1234567
123
CNP802
CNP801
1234567
CNP202
123456
MAIN PWB-A
BR
CNP301
3
2
1
RD
3
BK
2
1
WH
CNW601
FM/AM LOOP
ANTENNE
CNP204
6754321
CNS805
GY
CNS804
RD
1234567
7654321
WH
123456
7
CNW804
78654321
CNW201
3
21
CNP205
CNP601
7654321
CNP101
CNS601
RD
3
3
BK
21
21
WH
CNW202
12345
SO101
SPEAKER TERMINAL
M201(???-?)
FAN MOTOR
RD
RED
WH
CNS203
3
2
1
CNW203
B-B3
Figure 6-15 WIRING SIDE OF PWB (2/14)
6 – 15
CD-MPS440W
1
R363
R377
5
J
[10] WIRING SIDE OF PWB MAIN TOP
A
B
C
D
E
F
G
MAIN PWB-A
(TOP VIEW)
CNP803
J805
R856
J804
Q819
J825
J806
R846
J812
J814
Q805
J819
CNW805
C210
IC203
J803
R833
J813
R813
C828
J811
Q808
R845
J815
C209
Q811
R816
R811
R821
R812
C826
R823
D802
R839
R843
R855
J801
C839
C824
R849
R850
Q810
J816
J820
C810
C809
C833
R853
C208
Q807
CNP802
J827
C805
Q816
J821
C205
IC202
R858
R815
J810
J817
Q806
Q809
C851
Q817
R831
R817
C818
R841
C829
C830
C835
C837
Q801
C849
Q802
C850
D805
C831
C844
C841
J818
C204
C206
R810
J822
R830
R806
J802
CNP801
J807
Q822
R859
R862
Q820
D806
Q818
R825
C212
IC201
D211
D212
IC801
R866
R827
R805
C843
C842
R824
D804
C807
C806
R809
R829
R852
R863
R822
Q815
C211
R832
J808
Q823
C808
D201
Q803
C840
Q812
Q804
R803
J828
J202
J842
J843
R840
C834
R807
J203
C817
C845
R861
R860
R826
C203
Q814
J208
D803
C836
R854
C838
R857
D807
D801
R804
C823
R842
J225
R819
Q813
R838
J209
L801
C847
R802
C825
Q821
R828
J809
J210
C846
D207
R818
C827
C832
CNW804
CNW201
J841
R844
J213
R848
R847
Q206
J611
R864
J212
J204
J207
J206
J201
R217
R620
R618
R616
C104
R201
J605
R851
J217
J610
J844
R112
J205
J508
J216
J214
R617
D210
C108
J235
J616
J602
J614
J615
J506
CNP202
CNP204
R624
R102
C106
R110
J507
R218
R625
R621
CNP205
R630
J609
R619
C601
CNP601
J107
Q102
C110
C606
R605
J608
C604
R104
Q104
R122
C618
Q207
C624
R114
C118
Q351
C605
C603
D102
C602
R116
C625
R607
R606
C607
C116
R124
J606
R615
C114
C201
J502
J503
R629
R604
R614
C112
J603
R118
C202
ZD351
J501
J607
J604
C610
C608
R609
R628
R608
C609
C111
C391
IC10
R120
D101
C3
R119
H
1
23456
Figure 6-16 WIRING SIDE OF PWB (3/14)
6 – 16
CD-MPS440W
J603
4
2
118
C202
ZD351
J501
J607
J604
C610
C608
R609
R628
R608
C609
C111
C391
C357
IC101
R120
D101
J311
R119
C396
R377
R363
C614
R385
R384
C358
C623
C613
J301
C371
C373
C113
R123
C622
R117
C616
C615
C115
R395
R376
C372
Q103
C117
R121
R391
R392
L352
C620
C619
R111
X351
C368
C374
C617
J102
C398
R612
R623
R107
R113
CF351
C621
C105
J103
C370
C399
R601
D104
Q360
R602
C367
R115
C109
J101
R386
R109
C352
R603
R622
J601
C103
J302
IC303
CF352
C364
C107
C133
R382
C378
R219
R101
R135
CF302
Q101
C135
C136
T351
AM IF
Q306
C362
CNW202
R221
R105
C134
D308
J317
J303
R106
R103
R136
C386
L353
J318
C337
X352
R387
C385
L351
FM BAND
COVERAGE fL
VR351
FM MUTE
Level
CF303
J304
R336
VD303
C332
T306
AM BAND
COVERAGE fL
J228
J229
J230
J231
ZD201
J221
C101
J223
Q107
R209
R125
Q105
RLY101
Q203
D203
R126
R208
R212
R309
VD302
R307
VD301
C334
CNP101
J112
Q106
D205
R303
L105
Q208
R131
C330
C125
C130
L303
T304
D306
AM TRACKING
fL
C126
C128
C127
R138
J220
T302
R137
J114
Q109
D103
IC302
J233
R301
FM IF
C102
R211
D204
J307
IC301
L302
FM RF
C146
J219
J224
J222
J232
R207
R206
Q108
R202
J218
J309
D301
D302
C394
C311
C380
C316
D305
D307
R140
R205
C145
D202
R380
C393
BF301
Q202
Q204
J313
Q302
R210
C213
C214
Q201
J316
R213
Q205
CNP301
SO101
R203
J236
J234
CNW203
7
89101112
Figure 6-17 WIRING SIDE OF PWB (4/14)
6 – 17
CD-MPS440W
V
[11] WIRING SIDE OF PWB MAIN BOTTOM
MAIN PWB-A1 (BOTTOM
C331
C313
R308
C308
C309
R302
R323
C384
C335
R310
R312
R314
R313
C343
R358
C344
C365
C351
R352
R350
R353
C350
C366
R383
R351
C361
C369
C360
C355
R356
C356
C354
R357
R362
R364
R355
C353
C395
R393
C363
R361
R613
R366
C612
R644
R642
A
C381
R304
R315
R381
C397
C321
C304
C319
R365
R379
C387
C315
R305
C317
C318
CHASSIS
GND
B
C301
C
C302
C349
C382
R306
C305
C307
C392
C383
C306
C312
R316
C303
C314
R374
R373
R372
R371
R359
R360
C329
D
IC601
E
C119
F
R130
R127
C611
R132
G
R204
C121
H
1
23456
Figure 6-18 WIRING SIDE OF PWB (5/14)
6 – 18
VIEW)
CD-MPS440W
R642
R644
R643
R820
R836
C821
C815
C812
C801
C803
R835
R834
C804
C802
R837
C814
C816
C822
C819
R865
C120
R128
R108
CHASSIS
GND
7
89101112
Figure 6-19 WIRING SIDE OF PWB (6/14)
6 – 19
CD-MPS440W
H
H
9
[12] WIRING SIDE OF PWB POWER
POWER PWB-B1
(TOP VIEW)
A
T101
POWER TRANSFORMER
B
F901
FH901A
FH902A
SW901
VOLTAGE SELECTOR
C
SO901
AC INPUT
SOCKET
AC 230 V, 50 Hz
J194
C901
D910
D909
FH903A
T1.6A
D911
F902
F903
F
FH
F
C902
D
POWER PWB-B1
(BOTTOM VIEW)
E
CHASSIS
GND
F
G
H
1
23456
Figure 6-20 WIRING SIDE OF PWB (7/14)
6 – 20
D902
D918
D919
CD-MPS440W
901
902
903
C902
IEW)
FH901B
FH902B
FH903B
D906
D905
C905
C906
D908
D907
C903
C904
ZD901
C907
C908
D901
D904
D903
R904
Q901
R902
C909
R903
CNP201
ZD902
1
R906
R905
C910
R907
J191
CNP901
TERMINAL PWB-B4
(BOTTOM VIEW)
CHASSIS
GND
(TOP VIEW)
D605
D604
R641
SO601
L601
CNW601
LEFT
VIDEO/AUX
IN
RIGHT
HEADPHONES PWB-B3
(BOTTOM VIEW)
7
89101112
(TOP VIEW)
CNW101
L103
R127A
R128A
JK101
HEADPHONES
J102
Figure 6-21 WIRING SIDE OF PWB (8/14)
6 – 21
CD-MPS440W
[13] WIRING SIDE OF PWB DISPLAY TOP
A
B
CNW102
R707
R749
R706
R705
R703
R701
R702
CNW803
R727
R704
R744
R744A
R734
R759
R758
R757
C
D
R756
R754
R755
SW702
J767
R735
R726
R796
R795
J778
R712
R794
R728
R709
J777
R793
R732
R731
R730
R729
J721
J722
LED701
R752F
R752G
J727
R752Q
J765
R752P
R716
J769
R714
R713
DISPLAY PWB-B2 (
J703
R797
J730
R752J
R752I
R752H
R752K
R752B
R752E
J733
R752C
R752D
VFD701
R753A
R752A
R753I
J719
R791
E
CNW405
R719
R717
R718
SW715
SW714
J728
SW713
SW712
F
J701
R785
R784
R786
L705
R783
R787
J776
CNW202
R782
SW711
R722
J709
SW724
R721
J720
1
R720
R752T
R752R
J774
R752S
R781
J770
J753
R752L
R752O
R743
R752N
R752M
J734
R789
SW723
C716
SW706
SW710
SW707
R779
R771
Q704
R775
R770
ZD701
R776
J748
R790
R778
R777
Q703
J725
J749
G
H
1
23456
Figure 6-22 WIRING SIDE OF PWB (9/14)
6 – 22
-B2 (TOP VIEW)
CD-MPS440W
777
01
790
701
778
6
R752A
Q703
J749
R753I
J725
R753H
R780
R772
J710
R753C
R753B
R764
C712
SW709
R753D
D705
SW708
R753E
J736
R753F
R753G
SW722
SW705
J732
R773
Q702
Q701
J729
J756
J768
J750
J751
R761
R774
J745
D704
D702
J716
R737
R736
J711
J757
J712
D703
X702
J752
J718
R763
J758
R733
L701
J747
J713
J714
J704
J761
J737
J743
C706
J717
L704
R745
R747
J744
J755
R750
J731
R742
R769
J708
C709
RX701
C719
J779
L703
SW704
J780
L702
J746
R768
C720
C705
J735
J760
R725
C710
J738
R760
R746
R751
J766
SW701
D701
SW720
J726
SW721
J763
J762
D706
J759
SW719
R765
CNW901
J764
SW703
7
89101112
Figure 6-23 WIRING SIDE OF PWB (10/14)
6 – 23
CD-MPS440W
A
[14] WIRING SIDE OF PWB DISPLAY BOTTOM
A
DISPLAY PWB
B
C708
L706
IC701
R807A
1
R808
C701
R805
R715
C
C702
C718
D
E
C717
C707
R762
C711
R809A
C713
R766
R767
F
G
H
1
23456
Figure 6-24 WIRING SIDE OF PWB (11/14)
6 – 24
CD-MPS440W
PWB-B2
R805A
8
R715
1
(BOTTOM VIEW)
R708
R711
R804A
R806A
7
89101112
Figure 6-24 WIRING SIDE OF PWB (12/14)
6 – 25
CD-MPS440W
[15] WIRING SIDE OF PWB CD
A
B
CD SERVO PWB-C (TOP VIEW)
ZD402
C402
D402
J448
R423
D401
J428
J405
ZD401
J403
CNP401
J434
J442
J404
Q403
Q404
Q402
Q401
J426
J411
C416
J437
J401
C403
R402
CNW404
R410
Q410
Q409
J402
R408
R407
C
D
E
F
J429
R403
D403
J406
L401
J443
J414
C407
J407
CNW402
J422
R437
J410
C422
J409
J421
R413
Q408
Q407
Q406
Q405
C425
J408
C415
R411
J433
J427
C439
C452
R412
CNP405
J436
J423
C406
C441
C429
J440
Q413
R453
C449
C405
J412
X401
C423
C424
CNP403
C438
R449
C436
J438
J435
J417
J415
L402
J419
J447
J445
R456
J416
C434
J420
R432
R433
CNW205
J446
R464
CNW204
J439
C440
Q412
Q411
R427
C445
C447
L403
CNP406
J418
SW401
G
H
1
23456
Figure 6-23 WIRING SIDE OF PWB (13/14)
6 – 26
CD SERVO PWB-C (BOTTOM VIEW)
WAVEFORM NUMBERS
6
7
41
40
11
10
45
9
50
60
55
IC401
61
65
70
75
8
80
5
2
35
30
25
21
20
15
10
5
1
4
CD-MPS440W
1
3
R426
R420
C435
R419
R448
R443
R457
C437
R442
C431
C432
R460
C442
R445
L405
R422
R458
C433
R444
C443
R439
R421
C446
R451
R459
R440
IC401
C412
C428
C430
C427
C421
R428
R455
R450
C444
R436
R461
R441
C420
C417
C426
R435
R434
C414
C413
R465
C419
R416
C418
R438
IC402
R425
C451
R429
R414
C408
R404
C411
R424
R406
C404
C401
R401
R415
R409
R405
C450
R454
The numberstoare waveform numbers shown in page 5-1
7
111
89101112
Figure 6-24 WIRING SIDE OF PWB (14/14)
6 – 27
CD-MPS440W
CHAPTER 7. FLOWCHART
[1] TROUBLESHOOTING
1. When the CD does not function
The CD section may not operate when the objective lens of the optical pickup is dirty. Clean the objective lens, and check the playback operation.
When this section does not operate even after the above step is taken, check the following items.
Remove the cabinet and follow the trouble shooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens. Before attempting
any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the
brush on the CD cleaner disc which has the mark next to it.
2.
Place the CD cleaner disc onto the CD disc tray with the brush side down,then
press the play button.
3.
You will hear music for about 20 seconds and the CD player will automatically stop.
If it still play continuously, press the stop button.
Cleaning fluid
CAUTION
The CD lens cleaner should be effective for 30-50 operations, however if the
brushes become worn out earlier then please replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft
cloth.
Do not drink the cleaner fluid or allow it contact with the eyes. In the event of this
happening then drink and / or rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD players or on computer CD-ROM
drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product
is prohibited by law.
2. When a CD cannot be played
2.1. Pressing the CD operation key is accepted, but playback does not occur.
1) Focus-HF system check
2) Tracking system check
3) Spin system check
4) PLL system check
5) Others
Cleaner disc
7 – 1
CD-MPS440W
(1) Focus-HF system check.
Although a CD is inserted and the cover is closed, "NO
DISC" is displayed.
T
1
Stopped
FDO
CH1=500 mV
DC 10:1
CH3=500 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
Press the OPEN/CLOSE switch (SW703) without inserting a
disc, and try starting the playback operation.
TDO
3
Smoothing : ON CH1 : 0.000 V
BW : FULL
CH2 : 0.0 V
CH3 : 0.000 V
CH4 : 0.00 V
=Record Length=
Main : 100 K
Zoom : 2 K
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH1
Delay :0.0ns
Hold off :0.2 µs
Figure 1
1. Does the pickup move to the PICKUP-IN Switch(SW1) posi-
NoSled motor(NM801).
tion?
Yes
2. Does the focus (lens) move up and down?
NoCheck the focus peripheral circuit.
(Waveform drawing Figure 1)
Yes
3. Is the laser lit?NoCheck the laser diode driver Q409 peripheral circuit.
CH1
v/DIV
500 mV
Yes
4. Is the turntable rotating?NoSpindle motor(NM802).
When a disc is loaded, start playback operation.
1. Is focus servo activated?
(Waveform drawing Figure 2)
NoPins 5~9,11, 14 and 18,19 on IC401.
Check the laser diode driver Q409 peripheral circuit.
Yes
2. Does DRF change from "L" to "H"?NoIs the disc rotating?NoCheck the spin system.
If the disc is spinning and a HF waveform
is generated, DRF will go H.
3. Is the HF waveform normal?
Yes
NoIf the level is not normal.
(Waveform drawing Figure 3)
Stopped
CH1=500 mV
CH2=10 V
DC 10:1
DC 10:1
FDO
1
CH3=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
RF
TE
3
-3 div-1 div0 div+1 div +3 div
Smoothing : ON CH1 : 0.000 V
BW : FULL
CH Position To
CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V
=Record Length=
Main : 100 K
Zoom : 2 K
Figure 2
CH2
Position
0.20 div
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH1
Delay :0.0ns
Hold off :0.2 µs
7 – 2
Figure 3
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
CD-MPS440W
(2) Tracking system check.
Check the TE waveform at pin 16 on IC401.
If the waveform shown in Figure 4 appears and soon after NO
DISC appears?
Yes
No
"Initialization" is possible, but play is not possible?
Yes
No
"Initialization" is not possible.Data cannot be read. Check the VCO-PLL (Pin26~30 on IC401)
The tracking servo is not activated.
Check the peripheral circuits at pins 15, 16 and 23 on IC401,
and FC401.
A normal jump operation cannot be completed or the beginning
of the track cannot be found.
Check the around pin 23 on IC401.
system.
(3) Spin system check.
Press the OPEN/CLOSE switch without inserting a disc, and
then try starting the play operation.
1. The turntable rotates a little?
(Waveform drawing Figure 5)
Yes
Stopped
CH1=10 V
DC 10:1
TE
2
Smoothing : ON CH1 :0.0V
BW : FULL
T
CH2=1 V
DC 10:1
CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V
The spin driver circuit is OK.
=Record Length=
Main : 100 K
Zoom : 2 K
Figure 4
100 ms/div
(100 ms/div)
NORM:100 kS/s
=Trigger==Filter==Offset=
Mode : NORMAL
Type : EDGE CH1
Delay :2.924 ms
Hold off :0.2 µs
No
2. The turntable doesn't rotate.Check around pin 25 on IC401, pins 10 and 11 on IC402, and
CNW402.
Stopped
CH1=200 mV
DC 10:1
T
FDO
2
SPDO
1
=Filter==Offset=
Smoothing : ON CH1 : 0.000 V
BW : FULL
T
CH2=500 mV
DC 10:1
CH2 : 0.000 V
CH3 : 0.00 V
CH4 : 0.00 V
=Record Length=
Main : 100 K
Zoom : 2 K
1999/04/07 09:51:15
500 ms/div
(500 ms/div)
NORM:20 kS/s
=Trigger=
Mode : NORMAL
Type : EDGE CH2
Delay :2.924 ms
Hold off :0.2 µs
Figure 5
7 – 3
CD-MPS440W
(4) PLL system check.
When a disc is loaded, start play operation.
The HF waveform is normal, but the TOC data cannot be read.
Check the PDOUT waveform. (Figure 6)
Check around pins 26~30 on IC401.
Stopped
CH1=500 mV
DC 10:1
PDOUT0
3
4
PDOUT1
T
FDO
1
Smoothing : ON CH1 : 0.000 V
BW : FULL
CH2 : 0.0 V
CH3 : 0.00 V
CH4 : 0.00 V
CH3=1 V
DC 10:1
=Record Length=
Main : 100 K
Zoom : 2 K
Figure 6
1999/04/05 17:33:17
CH4=1 V
500 ms/div
(500 ms/div)
DC 10:1
NORM:20 kS/s
=Trigger==Filter==Offset=
Mode : AUTO
Type : EDGE CH2
Delay :0.0 ns
Hold off :0.2 µs
CH1
v/DIV
500 mV
(5) Others.
The HF waveform is normal and the time is displayed normally, but no sound is produced. Or the sound has dropouts.
Is pin 35 (C2F) on IC401 "L"?NoThere are too many error flags on a damaged disc which makes
error correction impossible.
Yes
1. When playing at normal speed.
Check the peripheral circuit at pin 69 (DOUT) on IC401 and the
waveform (Figure 7).
If OK, Check the unit.
Check again using a known good disc.
T
Stopped
CH1=2 V
DC 10:1
T
1
DOUT
=Filter==Offset=
Smoothing : ON CH1 : 0.00 V
BW : FULL
CH2 : 0.00 V
CH3 : 0.00 V
CH4 : 0.00 V
=Record Length=
Main : 1 K
Zoom : 100
Figure 7
1999/04/07 09:25:28
500 ns/div
(500 ns/div)
NORM:200 MS/s
=Trigger=
Mode : NORMAL
Type : EDGE CH1
Delay :2.887 ms
Hold off :0.2 µs
7 – 4
CD-MPS440W
CD-MPS440W
CHAPTER 8. OTHERS
Service Manual
[1] FUNCTION TABLE OF IC
IC401 VHiLC7890/-1: MP3 Decoder Digital Signal Processor (LC78690)
Pin No.Terminal NameInput/OutputSetting in ResetFunction
1EFMINInputInputRF signal input.
2RFOUTOutputUnfixRF signal output.
3LPFOutputUnfixTo LPF capacitor for detecting DC level of RF signal.
4PHLPFOutputUnfixTo LPF capacitor for detecting scratch.
5AINInputInputA signal input.
6CINInputInputC signal input.
7BINInputInputB signal input.
8DINInputInputD signal input.
9FECOutputUnfixTo LPF capacitor for FE signal.
10*RFMONOutputUnfixMonitoring for LSI internal analog signal.
11VREFOutputAVDD/2VREF voltage output.
12JITTCOutputUnfixFor jitter detection capacitor.
13EINInputInputE signal input.
14FINInputInputF signal input.
15TECOutputUnfixTo LPF capacitor for TE signal.
16TEOutputUnfixTE signal output.
17TEINInputInputTE signal input for TES signal generation.
18LDDOutputUnfixLaser power control signal output.
19LDSInputInputLaser power detection signal input.
20AVSS--Analog GND. Connected to 0V.
21AVDD--Analog power supply.
22FDOOutputAVDD/2Focus control signal output. D/A output.
23TDOOutputAVDD/2Tracking control signal output. D/A output.
24SLDOOutputAVDD/2Sled control signal output. D/A output.
25SPDOOutputAVDD/2Spindle control signal output. D/A output.
26VVSS1--For EFM
27PDOUT1OutputUnfixPhase comparison output pin 1 for built-in VCO control.
28PDOUT0OutputUnfixPhase comparison output pin 0 for built-in VCO control.
29PCKISTInputInputTo resistance for current setting of PDOUT0, 1 output.
30VVDD1--Power supply for built-in VCO
31*DMUTEBOutputLDMUTEB (general-purpose) output
32PUINInput/OutputInputPUIN (general-purpose) input/output (Built-in Pull-Up resistance)
33*DEFECTOutputLScratch detection signal output
34*FSEQOutputLSync signal output. Switches to "H" when sync signal detected from EFM
35*C2FOutputLC2 error signal output.
36DVDD--Digital power supply.
37DVSS--Digital GND. Connected to 0V.
38DVDD1.8OutputHTo power supply capacitor for digital circuit.
39VVDD3--Power supply for built-in PLL.
40VVSS3--GND for built-in PLL. Connected to 0V.
41DVDD--Digital power supply.
42DVSS--Digital GND. Connected to 0V.
43CEInputInputFor micro44CLInputInputData transfer clock input.
45DIInputInputData input
46DOOutput(H)Data output (Tri-state output: Built-in Pull-Up resistance)
47RESBInput-Reset input for this LSI. Set as "L" when turning power on.
48*INTB0OutputHInterrupt signal output pin 0 (Servo section)
49*INTB1OutputHInterrupt signal output pin 1 (Decoder section)
50CONT2Input/OutputInputGeneral-purpose input/
51*CONT1Input/OutputInputGeneral-purpose input/
52*CONT0Input/OutputInputGeneral-purpose input/
53TEST0InputLInput for testing. Connected to 0V.
54STREQInput/OutputInputStream data request signal output.
PLL
signal and sync signal generated internally are the same.
processor
interface
output pin 2
output pin 1
output pin 0 (Built-in PullUp resistance)
GND for built-in VCO. Connected to 0V.
Enable signal input.
Controlled by command from microprocessor.
When not in use, set as input and connect to
0V, or set as output and leave open.
8 – 1
CD-MPS440W
Pin No.Terminal NameInput/OutputSetting in ResetFunction
55STCKInput/OutputInputBit clock input for stream data.
56STDATAInput/OutputInputStream data input.
57TEST1InputLInput for testing. Connected to 0V.
58*DATAOutputLL/R channel data output.
59*DATACKOutputLBit clock output
60*LRSYOutputLL/R ch clock output
61VVDD2--For EFM
62VPREF2InputInputInput for oscillation range setting of built-in VCO.
63VCOC2InputInputInput for control voltage setting of built-in VCO.
64VPDOUT2OutputUnfixOutput for controlling built-in VCO.
65VVSS2--GND for built-in VCO. Connected to 0V.
66DVDD1.8OutputHTo power supply capacitor for digital circuit.
67DVSS--Digital GND. Connected to 0V.
68DVDD--Digital power supply.
69*DOUTOutputLDigital OUT output. EIAJ format.
70*AMUTEBOutputLAMUTEB (general-purpose) output.
71XVSS--Digital GND. Connected to 0V.
72XOUTOutputOscillatorFor crystal
73XINInputOscillator
74XVDD--Digital power supply
75LCHOOutputLRVDD/2D/A con76LRVDD--Power supply for LR channel.
77LRVSS--GND for LR channel. Connected to 0V.
78RCHOOutputLRVDD/2R channel output.
79AVDD--Analog power supply.
80SLCOOutputUnfixSlice level control output.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
PLL
oscillation
verter
Power supply for built-in VCO
To 16.9344 MHz oscillator
L channel output.
8 – 2
CD-MPS440W
IC401 VHiLC7890/-1: MP3 Decoder Digital Signal Processor (LC78690)
SLCO
AVDD
RCHO
LRVSS
LRVDD
LCHO
XVDD
XIN
XOUT
79 787776 75
80
74
73 7271
XVSS
AMUTEB
DOUT
70
69
DVDD
68
DVSS
67
DVDD1.8
VVSS2
66
65
VCOC2
VPDOUT2
64
63
VPREF2
61
62
VVDD2
EFMIN
RFOUT
LPF
PHLPF
AIN
CIN
BIN
DIN
FEC
RFMON
VREF
JITTC
EIN
FIN
TEC
TE
TEIN
LDD
LDS
AVSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SLICE LEVEL
CONTROL
RF
SIGNAL
PROCESSOR
VREF
MONITOR
TES, HFL,
DEFECT
JITTER
APC
LPF
CLOCK
GENERATOR
1bit DAC
8FS DIGITAL FILTER
DEEMPHASIS
ATTENUATION CONTROL
INTERPOLATION MUTE
Audio FLT MUTE
Synchronization
Detection
EFM
Demodulation
SERVO
CONTROL
A/D
D/A
CD PLL
DOUT
MP3 & WMA
DECODER
Memory I/F
TEXT
ROM
DECODER
ERROR
CORRECTION
SUBCODE DECODE
PLL2
AUDIO
Stream
Memory
CPU I/F
PORT
CONTROL
PLL3
I/F
I/F
1M
60
LRSY
59
DATACK
58
DATA
57
TEST1
56
STDATA
55
STCK
54
STREQ
53
TEST0
52
CONT0
51
CONT1
50
CONT2
49
INTB1
48
INTB0
&
47
46
45
44
43
42
41
RESB
DO
DI
CL
CE
DVSS
DVDD
21
22 2324 25 26 2728 2930 3132 3334 35 363738 39 40
FDO
AVDD
TDO
SLDO
SPDO
VVSS1
PDOUT1
PCKIST
PDOUT0
VVDD1
DMUTEB
PUIN
DEFECT
C2F
FSEQ
DVSS
DVDD
Figure 1 BLOCK DIAGRAM OF IC
8 – 3
VVDD3
DVDD1.8
VVSS3
IC601 VHiLC75341M-1: Signal Control (LC75341M)
CD-MPS440W
Pin No. Terminal NameFunction
1DISerial data and clock input pin for con-
trol.
2CEChip enable pin.
Data written into an internal latch in a
timing of "H" to "L".
Each analog switch is activated.
Data transfer enabled at "H" level.
3VSSGround pin.
4LOUTBass band filter comprising
capacitor and resistor connection pin
and bass/treble output pin.
5LBASSBass band filter comprising capacitor
and resistor connection pin.
6LTRETreble band filter comprising capacitor
and resistor connection pin.
7LINVolume + equaliser output pin.
8LSEL0Input selector output pin.
9,10,11,12L4-1Input signal pin.
CD-MPS440W Mini Component System consisting of CD-MPS440W
(main unit) and CP-ES440 (Speaker System).
CD-MPS440W
CONTENTS
[9]RESISTORS
[10] OTHER CIRCUITRY PARTS
[11] CABINET PARTS
[12] SPEAKER BOX PARTS
[13] ACCESSORIES/PACKING PARTS
[14] P.W.B. ASSEMBLY (Not
Replacement Item)
[15] OTHER SERVICE PARTS
INDEX
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.
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-MPS440W
NO.PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
RANK
DESCRIPTION
[1] INTEGRATED CIRCUITS
IC101 VHISTK40290-1AYPower Amp.,STK40290
IC201 VHIKIA7805APIAFVoltage Regulator,KIA7805API
IC202 VHIKIA7812APIAEVoltage Regulator,KIA7812API
IC203 VHIKIA7808APIAFVoltage Regulator,KIA7808API
IC301 VHITA7358AP-1AGFM Front End,TA7358AP
IC302 VHILC72131/-1APPLL (Tuner),LC72131
IC303 VHILA1832S/-1ANFM IF Det./FM Mpx./AM IF,LA1832S
IC401 VHILC78690/-1BEMP3 Decoder Digital Signal Processor,LC78690
IC402 VHILA6548NH-1ALFocus/Tracking/Spin/Sled Driver,LA6548NH
IC601 VHILC75341M-1AMAudio Processor,LC75341M
IC701 RH-IXA057SJZZNSystem Microcomputer,IXA057SJ
IC801 VHIAN7345K/-1AMPlayback and Record/Playback Amp.,AN7345K
[2] TRANSISTORS
Q101 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q102 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q103 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q104 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q105 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q106 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q107 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q108 VSKRA107M//-1AEDigital,PNP,KRA107 M
Q109 VSKRC107M//-1ACDigital,NPN,KRC107 M
Q201 VSKTC3200GR-1ACSilicon,NPN,KTC3200 GR
Q202 VS2HJ9018-G-1ABNFET,2HJ9018 G
Q203 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q204 VS2HA1015GR-1ABSilicon,PNP,2HA1015 GR
Q205 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q206 VS2SB562-C/-1ADSilicon,PNP,2SB562 C
Q207 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q208 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q302 VS2SC535-C/-1ACSilicon,NPN,2SC535 C
Q306 VS2SC535-C/-1ACSilicon,NPN,2SC535 C
Q351 VSKRC104M//-1ACDigital,NPN,KRC104 M
Q360 VS2HA1015GR-1ABSilicon,PNP,2HA1015 GR
Q401 VSKTC3203Y/-1ACSilicon,NPN,KTC3203 Y
Q402 VSKTA1271Y/-1ACSilicon,PNP,KTA1271 Y
Q403 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q404 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q405 VSKTA1271Y/-1ACSilicon,PNP,KTA1271 Y
Q406 VSKTC3203Y/-1ACSilicon,NPN,KTC3203 Y
Q407 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q408 VSKTA1271Y/-1ACSilicon,PNP,KTA1271 Y
Q409 VS2HA1015GR-1ABSilicon,PNP,2HA1015 GR
Q410 VSKTC3203Y/-1ACSilicon,NPN,KTC3203 Y
Q411 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q412 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q413 VS2HC1815GR-1AB
Q701 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q702 VSKRC102M//-1ACDigital,NPN,KRC102 M
Q703 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q704 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q801 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q802 VS2HA1015GR-1ABSilicon,PNP,2HA1015 GR
Q803 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q804 VS2SB562-C/-1ADSilicon,PNP,2SB562 C
Q805 VS2SB562-C/-1ADSilicon,PNP,2SB562 C
Q806 VSKRC107M//-1ACDigital,NPN,KRC107 M
Q807 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q808 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q809 VSKRC107M//-1ACDigital,NPN,KRC107 M
Q810 VSKRC104M//-1ACDigital,NPN,KRC104 M
Q811 VSKRC104M//-1ACDigital,NPN,KRC104 M
Q812 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q813 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q814 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q815 VS2SB562-C/-1ADSilicon,PNP,2SB562 C
Q816 VSKRC102M//-1ACDigital,NPN,KRC102 M
Q817 VSKRC102M//-1ACDigital,NPN,KRC102 M
Q818 VSKRC102M//-1ACDigital,NPN,KRC102 M
Q819 VS2HC1815GR-1ABSilicon,NPN,2HC1815 GR
Q820 VSKRA102M//-1ACDigital,PNP,KRA102 M
Q821 VSKRC104M//-1ACDigital,NPN,KRC104 M
Q822 VS2HA1015GR-1ABSilicon,PNP,2HA1015 GR
Q823 VS2SC2001-K-1ADSilicon,NPN,2SC2001 K
Q901 VS2HA1015GR-1ABSilicon,PNP,2HA1015 GR
CNS203 QCNWNA395SJZZNConnector Ass'y,2Pin
CNW101 QCNWNA241SJZZNConnector Ass'y,5/5Pin with CNS101
CNW102 QCNWNA234SJZZNConnector Ass'y,8/7Pin with CNS102
CNW201 QCNWNA223SJZZNConnector Ass'y,8/7Pin with CNS201
CNW202 QCNCM999GAFZZADPlug,7Pin
CNW202 QCNWNA235SJZZNConnector Ass'y,8/7Pin with CNS202
CNW203 QCNCM046CSJZZADPlug,3Pin
CNW204 QCNWNA239SJZZNConnector Ass'y,7/6Pin with CNS204
CNW205 QCNWNA248SJZZNConnector Ass'y,4/3Pin with CNS205
CNW402 QCNWNA240SJZZNConnector Ass'y,7/6Pin with CNS402
CNW404 QCNWNA246SJZZNConnector Ass'y,3Pin
CNW405 QCNWNA247SJZZNConnector Ass'y,13/12Pin with CNS405
CNW601 QCNWNA237SJZZNConnector Ass'y,3/3Pin with CNS601
CNW801 QCNWNA243SJZZNConnector Ass'y,3Pin
CNW802 QCNWNA242SJZZNConnector Ass'y,7Pin
CNW803 QCNWNA236SJZZNConnector Ass'y,11/10Pin with CNS803
CNW804 QCNWNA244SJZZNConnector Ass'y,7/7Pin with CNS804
CNW805 QCNWNA245SJZZN
CNW901 QCNWNA224SJZZNConnector Ass'y,6/5Pin with CNS901
!
!
!
F901 QFS-D502CAWNIACFuse,T5A L 250V
F902 QFS-D502CAWNIACFuse,T5A L 250V
F903 QFS-D162CAWNIACFuse,T1.6A L 250V
FC401 QCNWNA394SJZZNFlat Cable,16Pin
JK101 QJAKM0003SJZZNJack,Headphone
M201 RMOTV0409AFZZALMotor,Air Cooling Fan,(219-4)
M401 9GD8301-PDJ01ALMotor with Pulley [Up/Down/Loading] (238-2)
M402 9GD8301-PDJ02ALMotor with Worm Pulley [Rotate] (238-3)
Connector Ass'y,7/7Pin with CNS805
DESCRIPTION
11
CD-MPS440W
NO.PARTS CODE
PRICE
RANK
NEW
MARK
PAR T
RANK
[10] OTHER CIRCUITRY PARTS
M801 9GD60020322AUMotor with Pulley [Tape] (219-10)
MR401 RCORF0026FCZZAFCore
NM801 ---------Motor with Gear [Sled](Supplied at REF No.238-1)
NM802 ---------Motor with Chassis [Spindle](Supplied at REF No.23
SW1 ---------Switch,Leaf Type [Pickup in](Supplied at REF No.23
SW401 QSW-B0002SJZZAESwitch,Lever Type [DISC UP/DOWN]
SW402 9GD8301-DKG02AFSwitch,Leaf Type [Open/Close](238-4)
SW403 9GDM03-DKG01ABSwitch,Leaf Type [Disc No.](238-5)
SW404 9GDM03-DKG01ABSwitch,Leaf Type [Disc 1](238-6)
SW701 QSW-K0002SJZZACSwitch,Key Type [X-BASS/DEMO]
SW702 QSW-K0002SJZZACSwitch,Key Type [ON/STAND-BY]
SW703 QSW-K0002SJZZACSwitch,Key Type [OPEN/CLOSE]
SW704 QSW-K0002SJZZACSwitch,Key Type [DISC SKIP]
SW705 QSW-K0002SJZZACSwitch,Key Type [VIDEO/AUX]
SW706 QSW-K0002SJZZACSwitch,Key Type [TAPE]
SW707 QSW-K0002SJZZACSwitch,Key Type [PRESET DOWN]
SW708 QSW-K0002SJZZACSwitch,Key Type [PLAY/REPEAT]
SW709 QSW-K0002SJZZACSwitch,Key Type [PRESET UP]
SW710 QSW-K0002SJZZACSwitch,Key Type [STOP]
SW711 QSW-K0002SJZZACSwitch,Key Type [MEMORY/SET]
SW712 QSW-K0002SJZZACSwitch,Key Type [TUNING/TIME DOWN]
SW713 QSW-K0002SJZZACSwitch,Key Type [TUNING/TIME UP]
SW714 QSW-K0002SJZZACSwitch,Key Type [TIMER/SLEEP]
SW715 QSW-K0002SJZZACSwitch,Key Type [CLOCK]
SW719 QSW-K0002SJZZACSwitch,Key Type [EQUALISER]
SW720 QSW-K0002SJZZACSwitch,Key Type [VOLUME UP]
SW721 QSW-K0002SJZZACSwitch,Key Type [VOLUME DOWN]
SW722 QSW-K0002SJZZACSwitch,Key Type [TUNER(BAND)]
SW723 QSW-K0002SJZZACSwitch,Key Type [DISC]
SW724 QSW-K0002SJZZACSwitch,Key Type [REC/PAUSE]
SW801 9GD19211305ACSwitch,Leaf Type [Tape 2 Initialize](219-8)
SW802 9GD19211305ACSwitch,Leaf Type [Tape 1 Initialize](219-8)
SW803 9GD19211305ACSwitch,Leaf Type [Tape 2 Rec](219-9)
SW901 QSOCE0008AWZZAHSwitch,Slide Type
PWB-F ---------T/T Motor (Supplied at REF No.221,CD Player Unit)
PWB-G ---------Switch (Supplied at REF No.221,CD Player Unit)
PWB-H 9GD192114325-Tape Mechanism (H1,2)(220-11Åj
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
SHARP CORPORATION
AV Systems Group
Quality & Reliability Control Center
Yaita,Tochigi 329-2193, Japan
Printed in Japan
A0507-1SS•HA•C
EX
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