Sharp CD-MPS440W User manual

SERVICE MANUAL
CD-MPS440W
No. XXXXXXXXXXXXX
MINI COMPONENT SYSTEM
CD-MPS440W
MODEL
SHARP CORPORATION
CONTENTS
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CHAPTER 1. GENERAL DESCRIPTION
[1] PRECAUTION FOR USING LEAD-FREE
SOLDER ........................................................ 1-1
[2] SAFETY PRECAUTION FOR SERVICE
MANUAL ........................................................ 1-2
[3] VOLTAGE SELECTION ................................. 1-2
[4] SPECIFICATIONS ......................................... 1-2
[5] NAMES OF PARTS........................................ 1-3
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT ............................................... 2-1
[2] TEST MODE .................................................. 2-2
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
MAIN PARTS ................................................. 3-1
[2] DISASSEMBLY .............................................. 3-4
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM MAIN ............................... 4-1
[2] BLOCK DIAGRAM DISPLAY ......................... 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT .................... 5-1
[2] VOLTAGE....................................................... 5-2
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM ............6-1
[2] TYPES OF TRANSISTOR AND LED ............6-1
[3] SCHEMATIC DIAGRAM MAIN(1/3)...............6-2
[4] SCHEMATIC DIAGRAM MAIN(2/3)...............6-4
[5] SCHEMATIC DIAGRAM MAIN(3/3)...............6-6
[6] SCHEMATIC DIAGRAM POWER .................6-8
[7] SCHEMATIC DIAGRAM DISPLAY ..............6-10
[8] SCHEMATIC DIAGRAM CD........................6-12
[9] WIRING SIDE OF PWB ..............................6-14
[10] WIRING SIDE OF PWB MAIN TOP ............6-16
[11] WIRING SIDE OF PWB MAIN BOTTOM......6-18
[12] WIRING SIDE OF PWB POWER ................6-20
[13] WIRING SIDE OF PWB DISPLAY TOP ......6-22
[14] WIRING SIDE OF PWB DISPLAY BOT-
TOM.............................................................6-24
[15] WIRING SIDE OF PWB CD ........................6-26
CHAPTER 7. FLOWCHART
[1] TROUBLESHOOTING ..................................7-1
CHAPTER 8. OTHERS
[1] FUNCTION TABLE OF IC .............................8-1
[2] FL DISPLAY ..................................................8-7
Parts Guide
TopPage
CD-MPS440W Mini Component System consisting of CD-MPS440W
(main unit) and CP-ES440(Speaker System).
• In the interests of user-safety the set should be restored to its original con-
dition and only parts identical to those specified be used.

CD-MPS440W
1 – 1
Home StereoCD-MPS440WService ManualCD-MPS440W S/MMarketE
CHAPTER 1. GENERAL DESCRIPTION
[1] PRECAUTION FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
Example:
Indicates lead-free solder of tin, silver and copper.
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire 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. Description Parts No.
PWB-A Main
PWB-B Power(B1)/Display(B2)/Headphones(B3)/Terminal(B4)
PWB-C CD Servo
PWB-G Switch
PWB-F T/T Motor
PWB-H Tape Mechanism
" MAIN, POWER, DISPLAY, HEADPHONES, TERMINAL, CD SERVO, T/T MOTOR, SWITCH, TAPE MECHANISM PWB" of this model
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.
DCEKKV575SJ03
DCEKNV575SJ03
DCEKSV575SJ03
9GD192114325

CD-MPS440W
1 – 2
[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 follow-
ing 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 posi-
tion, 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
Amplifier
CD player
Tuner
Cassette deck
Speaker
Power source AC 110/127/220/230-240 V, 50/60 Hz
Power
consumption
151 W
Dimensions Width: 270 mm (10-5/8")
Height: 305 mm (12")
Depth: 342 mm (13-1/2")
Weight 7.2 kg (15.9 lbs.)
Output power RMS: 150 W (75 W + 75 W) (10 % T.H.D.)
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
Input terminals Video/Auxiliary (audio signal):
500mV/47kohms
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response
20 -20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency range FM: 87.5 - 108.0 MHz
AM: 530 - 1,720 kHz
Frequency
response
125 - 8,000 Hz (normal tape)
Signal/noise ratio 50 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter 0.3 % (WRMS)
Type Twin-drive speaker system
10 cm (4") full-range speaker 2
Maximum input
power
150 W
Rated input power 75 W
Impedance 6 ohms
Dimensions Width: 200 mm (7-7/8")
Height: 305 mm (12")
Depth: 220 mm (8-11/16")
Weight 3.5 kg (7.7 lbs.)/each
Specifications for this model are subject to change without prior
notice.

CD-MPS440W
1 – 3
[5] NAMES OF PARTS
Front panel
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 (1 2) 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
3
4
5
2
1
6
11
9
7
8
10
12
16
14
15
17
13
22
23
24
25
18
19
20
21
Display
1.Disc Number Indicators
2.Disc Play Indicator
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
2
1
5
6
215 67893 4
10
11
151412 13
4
3
2
2
1
1
3

CD-MPS440W
1 – 4
Remote control
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
12
14
11
10
13
15
16
18
17 23
19 20 21 22
24 25 26
2
3
4
5
7
8
9
6

CD-MPS440W
2 – 1
CD-MPS440W Service Manual
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT
1. MECHANISM SECTION
•Driving Force Check
•Torque Check
•Tape Speed
2. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
•AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
•Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
•FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
•FM Detection
Signal generator: 10.7MHz FM modulated
•FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
Torque Meter Specified Value
Play: DM-300 Tape 1: Over 80 g
Tape 2: Over 80 g
Torque Meter Specified Value
Tape 1 Tape 2
Play: DM-300 10 to 20 g.cm 10 to 20 g.cm
Fast forward: DM-300 — Over 50 g.cm
Rewind: DM-300 — Over 50 g.cm
Test Tape Adjust-
ing Point
Specified
Value
Instrument
Connection
Tape
speed
TCC-119 Variable
Resistor in
motor.
3,000 ±30 Hz Speaker Ter-
minal (Load
resistance: 6
ohms)
Figure 1 ADJUSTMENT POINTS
Test Stage Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF 450 kHz 1,620 kHz T351 *1
AM Band
Coverage
— 522 kHz (fL): T306
1.1 ± 0.1 V
*2
AM Tracking 990 kHz 990 kHz T302 *1
*1. Input: Antenna Output: Speaker terminal
*2. Input: Input is not connected Output: TP301
Tape
Motor
Variable Resistor in Motor
TAPE MECHANISM
Frequency Display Check
Point
Instrument
Connection
87.5 MHz 87.5 MHz 2.2V ± 1.0V TP301
108 MHz 108 MHz 7.8V ± 1.0V TP301
Frequency Display Adjusting
Parts
Instrument
Connection
98.00 MHz 98.00 MHz
(30 dBµV)
VR351*1 Input: CNP301
Output: Speaker Terminal
Test
Stage
Frequency Frequency
Display
Setting/
Adjusting
Point
Instrument
Connection
FM IF 10.7 MHz 98.00 MHz T304
(Turn the
core of trans-
former T304
fully counter-
clockwise)
Input: Pin 1
of IC301
Test
Stage
Frequency Frequency
Display
Setting/
Adjusting
Point
Instrument
Connection
FM Band
Coverage
— 87.50 kHz (fL):L303
3.4 ± 0.1 V
*1
FM RF 98.00 MHz
(10-30 dB)
98.00 MHz L302 *2
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal
Figure 2 ADJUSTMENT POINTS
TP302
MAIN PWB
T351
T306
T304
L303
L302
T302
IC301
CNP301
IC302
VR351
FM MUTE
Level
FM BAND
COVERAGE fL
FM IF
FM RF
AM TRACKING
fL
AM BAND
COVERAGE fL
AM IF
R381
TP301
R357
R356

CD-MPS440W
2 – 2
[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]
[Self-diagnosis Test Mode]
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 pro-
cessed, it is impossible to proceed to the next step. During error pro-
cessing, 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 opera-
tions 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.
Press the following buttons in this state to obtain the operations
specified below.
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.
3. Step 3 Mode
While the laser keeps lighting, CD initialization operation flow pro-
ceeds 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.
*If the focus is not received after it has been taken, the process
returns to step 1.
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
1. Button input diagnosis test mode (TEST 6)...............................
TUNING UP +VOLUME UP
One second after display lights up
"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
"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
"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.

CD-MPS440W
2 – 3
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.
*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.
Press the following buttons in this state to obtain the operations
specified below.
*If the focus is not received, the process returns to step 1.
Other cautions
• TOC IL is not available for this test mode.
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and mea-
surement 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 measure-
ment 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 mem-
ory to be checked for judging memory error at initial setting and to ini-
tialize memory.
When the tuner test mode is obtained, the following display lights for
one second.
• 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.
"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
"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

CD-MPS440W
2 – 4
3. Preset frequencies for various destinations
(random preset memory)
• The slant line sections of the table store no memory.
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 vol-
ume 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.
Volume- ∞(STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0
(STEP 30)
3) X-BASS is switched when button is pressed.
5. Timer test Mode (TEST 4)
When this test mode is obtained, the following display lights for one
second.
Set the current time and timer time according to the following proce-
dure 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.
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.
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 termi-
nation 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 but-
tons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/DOWN, MEM-
ORY/SET, REW, FF, STOP, DISK TRAY OPEN/CLOSE
The OK/ERROR display of test result is as follows.
CH BAND FM
1
2
3
4
5
FM STEREO
FM 87.5 MHz
FM108.0 MHz
FM 98.0 MHz
FM 90.0 MHz
FM106.0 MHz
CH BAND FM
6
7
8
9
10
AM
AM 530 kHz
AM1720 kHz
AM 990 kHz
AM 600 kHz
AM1400 kHz
CH BAND FM
16-35 ——————
36
37
38
39
40
FM MONO
FM106.0 MHz
FM 90.0 MHz
FM 98.0 MHz
FM108.0 MHz
FM 87.5 MHz
————–
Lighting of all segments
Lighting of odd segments
Lighting of even segments
__________

CD-MPS440W
2 – 5
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

CD-MPS440W
3 – 1
Home StereoCD-MPS440WService ManualCD-MPS440W S/MMarketE
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE MAIN PARTS
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.
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.
Figure 5
TAPE 2
TAPE 1
TAPE 2
Main Belt
(G1)x1
TAPE 1
Main Belt
(F1)x1
Motor
Motor
REW/FF
Clutch Ass'y
Main
Belt
(F1)x1
Main
Belt
(G1)x1
REW/FF
Belt
(G2)x1
Figure 1
Figure 2
Figure 3
Figure 4
Record/
Playback Head
(A1)x1
ø2x3mm
(A1)x1
ø2x7mm TAPE 1
Erase Head
Record/
Playback Head
(B1)x2
ø2x8mm
TAPE 2
(B2)x1
ø2x3mm
(B2)x1
ø2x7mm
TAPE 1 TAPE 2
<A>
Pinch Roller
(C1)x1
Pinch Roller
Pawl
(D1)x2
ø2x4mm
(D2)x3
Special Screw
Motor
Motor
Motor
Bracket
Motor
Bracket
(D1)x2
ø2x4mm

CD-MPS440W
3 – 2
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 screw-
driver 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.
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 mecha-
nism PWB.
Figure 6
Figure 7
TAPE 1
TAPE 2
Stop
Washer
Driver
(H1)x1
Stop Washer
Mechanism
Chassis
Washerx2
Flywheel
TAPE 1,2
Tape
Mechanism
PWB Tape
Mechanism
PWB
(J3)x2
Solder
Joint
(J2)x1
ø2x8mm
(J1)x1
ø2x3mm

CD-MPS440W
3 – 3
2. CD PLAY SECTION
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.
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 elec-
trostatic damage.
Figure 1
Figure 2
Figure 3
(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

CD-MPS440W
3 – 4
[2] DISASSEMBLY
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:
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 disas-
sembling.
4) Take sufficient care on static electricity of integrated circuits and
other circuits when servicing.
STEP REMOVAL PROCEDURE FIGURE
1 Top Cabinet 1. Screw......................(A1) x 5 1
2 Side Panel
(Left/Right)
1. Screw......................(B1) x 8 1
3 CD Player unit 1.
2.
3.
4.
5.
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
Hook.......................(C2) x 2
Socket.....................(C3) x 1
Socket.....................(C4) x 2
2
4
4 Rear Panel 1. Screw......................(D1) x 8 2
5MainPWB 1.
2.
3.
Screw......................(E1) x 3
Socket.....................(E2) x 9
Socket.....................(E3) x 2
2
4
5
6 Front PWB 1.
2.
3.
Screw......................(F1) x 3
Hook........................(F2) x 2
Socket.....................(F3) x 1
4
7 Display PWB 1. Screw....................(G1) x 13 5
8 Tape Mecha-
nism
1.
2.
Open the cassette holder.
Screw......................(H1) x 8
5
9 Headphones
PWB
1. Screw.......................(J1) x 1 5
10 CD Servo
PWB
1.
2.
3.
4.
Screw......................(K1) x 4
Socket.....................(K2) x 3
Flat Cable...............(K3) x 1
Solder......................(K4) x 2
6
11 Turntable 1.
2.
Screw......................(L1) x 1
Spacer.....................(L2) x 1
7
12 Loading Tray 1.
2.
Push forward the loading
tray.
Inserting the flat head into
the hole, push in the direc-
tion indicated by the
arrow......................(M1) x 2
7
13 CD Mechanism
Block
1. Hook.......................(N1) x 2 8
1. After removing the connector for the optical pickup from the con-
nector, wrap the conductive aluminium foil around the front end of
the connector so as to protect the optical pickup from electrostatic
damage.
Figure 1
Figure 2
Figure 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
ø3x10mm
(E1)x2
ø3x6mm
CD Player Unit
CD Tray Cover
(E1)x1
ø3x10mm
(C2)x1
(C3)x1
CD Servo
PWB
(C1)x1
Pull
(C2)x1
Pull
Main
PWB
Rear
Panel
CD Player Unit
(Bottom View)
Loading Gear
Front Side
or

CD-MPS440W
3 – 5
These speaker CP-ES440 are available in assembles only and may
not be disassembled.
Figure 4
Figure 5
CP-ES440
Front Panel
Main PWB
Power PWB
(F1)x3
ø3x8mm
(E2)x4
(C4)x2
(E2)x2
(E2)x1
(E2)x1
(E2)x1
(F3)x1
(F2)x1
(F2)x1
Display PWB
Open
Cassette
Holder
Tape
Mechanism
Headphones
PWB PWB
(J1)x1
ø 2.5x8mm
(H1)x8
ø3x8mm
(G1)x13
ø2.5x10mm
Front Panel
(E3)x2
Figure 6
Figure 7
Figure 8
(K3)x1
CD Player Unit
(K1)x4
ø3x10mm
(K4)x2
CD Servo
PWB
Solder
Switch PWB
T/T Motor
PWB
(K2)x3
CD
Mechanism
Block
Screwdriver
Turntable
Loading Tray
Screwdriver
(L1)x1
ø3x10mm (L2)x1
(M1)x1
(M1)x1
CD
Mechanism
Block
Pull
Pull
(N1)x1
Hook
(N1)x1
Hook

CD-MPS440W
4 – 1
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM MAIN
V
F
V
F
Ð
B
+
B
Q807,Q808
Q813,Q814
Q821
Q822
Q823
Q801
Q803
Q810
Q811
Q812
Q819
DO CL DI CE
MO/ST
SWITCHING
SWITCHING
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM
OUT
P.B.
REC
L
R
PB
CNP205
FROM
CD SECTION
CNS205
TAPE 2
ERASE
HEAD
TAPE 2
PLAYBACK
HEAD
TAPE 1
R-CH
L-CH
R-CH
L-CH P.B
R
L
R
LREC
LNF
RNF
ALC
REC
REF
RREC
L REC
RNF
LNF
SWITCHING L(T2)
R(T2)
R(T1)
L(T1)
IC801
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
R
L
FM/AM
MPXIN
IF OUT
FM IN AM IN
MUTE
AM RF IN
AM OSC IN
AM OSC OUT
FM
Q360
Q802
Q815 Q818
Q804 Q817
Q805 Q816
Q820
Q809
BIAS CONT
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
VT
FM OSC
OSC BUFF
OSC
X352
4.5 MHz
AM BAND
COVERAGE
AM TRACKING
T302
Q302
Q351
FM MUTE
LEVEL
X351
456 kHz
MO/ST
VCO
FM
DET
VCC
GND
AM IF
CF351
DZH05C2+
AM IF
IC303
LA1832S
IC303
LA1832S
FM IF DET./
FM MPX./AM IF
AM MIX
CF352
T351
FM RF
FM OSC
L302
CF303
T304
FM IF FM IF
IC301
TA7358AP
FM FRONT END
BF301
CNP301
FM
ANTENNA
AM LOOP
ANTENNA
22
3
398
10
18
1
2
20
19
7
18
10
8
17
13
21
4
5
2
24
23
6
9
16
14
12 11
15
1
5
13
8
4
3
2
1
2
3
1
21
7
98 5
6
21
2
1
20 22 11
17
1516
9
6
57
13
14
12
15
16
2324
4
10
STEREO
SD
76
+
B
+B3
+
B
DG
N
+
B
+
B
+B2
+B2
+B2
+B2
+B2
FM
4
T306
L303
VR351
17
FR
O
DISPLAY
S
CNS2
FROM
DISPLAY SECTION
CNS901
CNS803
M
M801
TAPE
MOTOR
SW801
INITIALIZE
SW803
REC
SOL801
SOLENOID
TAPE 1
SW802
INITIALIZE
SOL802
SOLENOID
CF302
RECORD/
PLAYBACK HEAD
B.P.F
Q306
L
L
R
R
R
L
TAPE
TUNER
CD
1
1
1
R
L
AUX
1
9
1
1
1
Q806
234567
CL
DI
CE
DO
FM ST
SD
DGND
5
4
3
2
1
10
9
8
7
6
T1_SOL
T1_RUN_PLUS
T2_RUN_PLUS
T_MOTOR
CH_SW
BIAS
TAPE_SW
T2_SOL
REC
REC/PLAY
PHOTE INTERRUPTER
PHOTE INTERRUPTER
U_CON5V
SOLENOID
DRIVER
TAPE MOTOR
DRIVER
SOLENOID
DRIVER
CNP202
CNP803
Figure 4-1 BLOCK DIAGRAM (1/4)

CD-MPS440W
4 – 2
T101
POWER TRANSFORMER
Ð30 V
SO101
SPEAKER
TERMINAL
R-OUT
L-OUT
RLY101
VF2
VF2
VF1
VF1
ÐB2
+B5
+B1
+B2
+B2
ÐB1
Q206
SYSTEM
MUTE
Q101
Q102
Q103
Q104
Q108
Q109
Q105
Q106
Q201
Q202
Q204
Q205
D905~D908
D901~D904
F903
T1.6A L 250V
230-240V
110V
127V
220V
F901
T5AL250V
F902
T5A L 250V
+VCC
ÐVCC
PRE ÐVCC
PRE +VCC
IC101
STK40290
POWER AMP.
SO601
VIDEO/AUX IN
7
6
4
1
15
10
11
+B4
IC203
KIA7808API
VOLTAGE
REGULATOR
+B3
DGND
+5.6 V
+5.6 V
IC201
KIA7805API
VOLTAGE
REGULATOR
A_12V
CD_7V
CD+B
+B2
+B3
IC202
KIA7812API
VOLTAGE
REGULATOR
8
9
12
L
R
JK101
HEADPHONES
FROM
D
ISPLAY SECTION
CNS202
FROM
DISPLAY SECTION
CNS102
CNS901
FROM
CD SECTION
CNS204
Q901
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
Q207
Q107
Q208
+B5
+B4 CD_+B
MUTE
SIGAL_LVL
SP_RLY
SP_DETECT
FAN_PRT
FAN_START
CL
CE
DI
L
R
L
L
R
R
R
L
TAPE
T
UNER
CD
IC601
LC75341M
AUDIO PROCESSOR
21
4
24
2
1
818
17
11
3
15
10
R
L
AUX
16
9
723
14
12
13
+B2
+B3
+B3
SO901
AC POWER
SUPPLY CORD
SW901
VOLTAGE
SELECTOR
M
M201
FAN
MOTOR
654321
6
7
5
4
3
2
1
1234
CL CL
DI
DI
DO
DO
+7V
D_GND
M_GND
D_GND
5
4
3
2
1
AC 110/127/220/
230-240 V, 50/60 Hz
CNP204
CNW202
CNP901
Figure 4-2 BLOCK DIAGRAM (2/4)

CD-MPS440W
4 – 3
[2] BLOCK DIAGRAM DISPLAY
+7V
+7V M402
ROTATE
MOTOR
M401
UP/DOWN LOADING
MOTOR
+
Ð
TO MAIN SECTION
CONSTANT
VOLTAGE
CONSTANT
VOLTAGE
Q401,402
Q403,404
Q405,406
Q407,408
Q411,412,413
LASER
DRIVER
Q409
Q410
CD PICKUP UNIT
IC401
LC78690
MP3 DECODER
DIGITAL SIGNAL
PROCESSOR
VVDD1
LRVSS
XVSS
DVSS
DVSS
AVSS
DVSS
VVSS2
VVSS3
VVSS1
LDD LDS
M
+
Ð
M
CNP405
CNS205 CNS204
TRACKING COIL
FOCUS COIL
SW1
PICKUP IN
SW403
DISC NO.
SW404
DISC 1
NM801
SLED
MOTOR
NM802
SPINDLE
MOTOR M
M
DVDD
DVDD
DVDD
XVDD
AVDD
X401
16.9344 MHz
CD RES
+5.6V DI DO
CD_CE ROTATE UP_SW DOWN_SW OPEN_SW DISC NO._SW DISC 1_SW CLOSE_SW
MM+
MM-
MGND
VCC
VCC
IC402
LA6548HN
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
CE
DO
DI
CL
DIN BIN CIN AIN
SLDO
SPDO
TDO
FDO
PUIN
CONT2
LCHO
18
19
FIN EIN
14
13
20
24
21
1
MUTE
2
30
VREF
REG_OUT
29
9
7
22
24
36
LRVDD
76
30
VVDD3
VVDD2
39
41
61
68
74
8
VREF
11 765
21
51110 146 20 26 25
11
CD_CL
12 810 9 6745231
6245
26
37
40
42
53
65
57
67
71
77
32
50
22
23
25
27
4
12
19
312
+7V (+B5) DGND
L-CH
15 64
AGND
R-CH
32
75
RCHO
78 46 43
RESB
47
72
73
AVDD
79
~~
+
Ð
Ð
+
E
VCC
VC
C A B C F
LD MD
DISC
UP/DOWN
OPEN/CLOSE
SW401
SW402
~
Figure 4-3 BLOCK DIAGRAM (3/4)

CD-MPS440W
4 – 4
TO MAIN SECTION
TO POWER SECTION
Q702,Q703,Q704
RESET
Q701
LED701
G9
VDD3
VDD2
VDD1
VDD4
G1
1
1
2
CNS405
CNS901
CD_RES
CD_CE
ROTATE
DISC_UP_SW
DISC_DOWN_SW
OPEN_SW
DISC_NO._SW
DISC 1_SW
CLOSE_SW
MM+
MM-
CD_CLK
11
12
8
10
9
6
7
4
5
2
3
1
1
2
3
4
5
11 3
~
15 12
~
5051 47
~
38 30
29
IRQ
28
POWER_KEY
27
19
X-BASS/DEMO
KEY2_IN
~
~
P1 P4
GND
89
GND
GND
~
P5
P20
~
31 16
3233
~
67
68
69
70
71
73
4
5
6
7
74
75
CNS803
8
10
9
6
7
4
5
2
3
1
2
1
4
3
6
5
7
CNS202
CNS102
6
7
4
5
2
3
1
80
82
23
84
79
76
77
78
21 92 93 94 91 88 85 95 96 11 2697 98 99
100
83
81
52
~
VF1
VF1
VF2
VF2
3.8V
3.8V
Ð30V
+B3
ÐB2
+B3
5.6V
+B3
+B3
D_GND
IC701
IXA057SJ
SYSTEM
MICROCOMPUTER
VFD701
FL DISPLAY
RX701
REMOTE
SENSOR
KEY
SW703~SW710
SW719~SW721
18
16
15
14
17
90
46
72
KEY1_IN
CF2
CF1
KEY
SW711~SW715
SW722~SW724
SW702
ON/STAND-BY
SW701
X-BASS
/DEMO
X702
8 MHz
DISC_NO_SW
DISC1_SW
DISC_UP_SW
CLOSE_SW
ROTATE
DISC_DOWN_SW
OPEN_SW
CD_CE
CD_RES
MM+
MM-
97 CD_CL
T1_SOL
T1_RUN_PLUS
T2_TAPE2_SW
CH_SW
MOTOR
T1_RUN_PLUS
T2_SOL
TAPE_BIAS
REC_PLAY
REC
FAN_PRT FAN_START SP_DETECT SP_RELAY SIGAL_LVL P_MUTE CD+B
CH_SW
T2_RUN_PLUS
T1_RUN_PLUS
T2_SOL
T1_SOL
MOTOR
REC_PLAY
TAPE_BIAS
TAPE_SW
REC SW
FAN_PRT
FAN_START
P_MUTE
SP_RELAY
SIGAL_LVL
SP_DETECT
CD+B
SD FM_ST CE CL D0 D1
D_GND
SD
FM_ST
CE
CL
D0
D1
RESET IN PUT
13
12
XT2
XT1
X701
32.768 kHz
Figure 4-4 BLOCK DIAGRAM (4/4)

CD-MPS440W
5 – 1
Home StereoCD-MPS440WService ManualCD-MPS440W S/MMarketE
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT
T
FDO
TDO
Stopped
CH1=500 mV
DC 10:1
CH3=500 mV
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.000 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1IC401 22
2IC401 23
FDO
TE
Stopped
CH1=500 mV
DC 10:1
CH2=10 V
DC 10:1
CH3=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
-3 div -1 div 0 div +1 div +3 div
CH Position To
CH2
Position
0.20 div
1IC401 22
3IC401 16
Vp-p=1.0 V~1.3 V
0.5 mV/div,0.5 µsec/div
4IC401 2
T
TE
Stopped
CH1=10 V
DC 10:1
CH2=1 V
DC 10:1
100 ms/div
(100 ms/div)
NORM:100 kS/s
2
=Record Length=
Smoothing : ON CH1 : 0.0 V
CH2 : 0.00 V
Main : 100 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH1
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger=
=Filter= =Offset=
3IC401 16
T
T
FDO
SPDO
Stopped
CH1=200 mV
DC 10:1
CH2=500 mV
DC 10:1
500 ms/div
1999/04/07 09:51:15
(500 ms/div)
NORM:20 kS/s
2
1
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V
Main : 100 K
Zoom : 2 K
Mode : NORMAL
Type : EDGE CH2
Delay : 2.924 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
1IC401 22
5IC401 25
T
FDO
PDOUT1
PDOUT0
Stopped
CH1=500 mV
DC 10:1
CH3=1 V
DC 10:1
CH4=1 V
DC 10:1
500 ms/div
(500 ms/div)
NORM:20 kS/s
1
4
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.0 V
Main : 100 K
Zoom : 2 K
Mode : AUTO
Type : EDGE CH2
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH1
v/DIV
500 mV
1999/04/05 17:33:17
1IC401 22
6IC401 28
7IC401 27
T
T
DOUT
Stopped
CH1=2 V
DC 10:1
500 ns/div
1999/04/07 09:25:28
(500 ns/div)
NORM:200 MS/s
1
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V
Main : 1 K
Zoom : 100
Mode : NORMAL
Type : EDGE CH1
Delay : 2.887 ms
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
8IC401 69
T
T
DATA
DATACK
LRSY
Stopped
CH1=2 V
DC 10:1
CH2=2 V
DC 10:1
CH3=2 V
DC 10:1
5 µs/div
(5 µs/div)
NORM:100 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.00 V
CH2 : 0.00 V
Main : 5 K
Zoom : 100
Mode : AUTO
Type : EDGE CH3
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH3
v/DIV
2V
1999/04/05 20:50:17
9IC401 60
IC401 59
IC401 58
10
11
RF