• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CP-M8000
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION..................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 4
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 14
TYPES OF TRANSISTOR AND LED............................................................................................................................... 14
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 18
VOLTAGE ........................................................................................................................................................................ 36
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 37
FUNCTION TABLE OF IC................................................................................................................................................ 42
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-M8000W/CP-M8000
SAFETY PRECAUTION FOR SERVICE MANUAL
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
AGAINST EXPOSURE TO THE LASER BEAM.
1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITHOUT A COMPACT DISC IN POSITION AND THE
PICKUP IS ON THE OUTER EDGE 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 UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRESET BEFORE SHIPMENT.
DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
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 (110 V, 127 V, 220 V or 230 V-240 V AC).
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCE0014AW00
– 2 –
QPLGA0005AWZZ
CD-M8000W/CP-M8000
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
CD-M8000W
General
Power sourceAC 110/127/220/230 - 240 V, 50/60 Hz
Power consumption180 W
DimensionsWidth: 270 mm (10-5/8")
Weight11.7 kg (25.7 lbs.)
Height: 330 mm (13")
Depth: 360 mm (14-3/16")
Amplifier
Output powerMPO: 860 W (430 W + 430 W) (10 % T.H.D.)
Output terminalsSpeakers: 6 ohms
Input terminalsVideo/Auxiliary (audio signal): 500 mV/47 k ohms
RMS: 500 W (250 W + 250 W) (10 % T.H.D.)
RMS: 360 W (180 W + 180 W) (0.9 % T.H.D.)
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Microphone: 1 mV/600 ohms
CD player
Type3-disc multi-play compact disc player
Signal readoutNon-contact, 3-beam semiconductor laser pickup
D/A converter1-bit D/A converter
Frequency response20 - 20,000 Hz
Dynamic range90 dB (1 kHz)
Tuner
Frequency rangeFM: 88 - 108 MHz
AM: 531 - 1,602 kHz
CP-M8000
Type4-way type speaker system
Maximum input power
(Total)
Rated input power
(Total)
Impedance6 ohms
DimensionsWidth: 465 mm (18-5/16")
Weight10.1 kg (22.2 lbs.)/each
Super Tweeter
10 cm (4") Tweeter
10 cm (4") Midrange
25 cm (10") Woofer
500 W
250 W
Height: 330 mm (13")
Depth: 373 mm (14-11/16")
Specifications for this model are subject to change without
prior notice.
Cassette deck
Frequency response50 - 14,000 Hz (Normal tape)
Signal/noise ratio55 dB (TAPE 1, playback)
18. CD Track Down or Fast Reverse, Tape 2 Fast Wind,
Tuner Preset Down Button
19. CD Track Up or Fast Forward, Tape 2 Fast Wind,
Tuner Preset Up Button
20. Clock Button
21. Timer/Sleep Button
22. Tape 2 Reverse Mode Select Button
23. Tape 2 Reverse Play Button (with Indicator)
24. CD Play or Repeat, Tape 1 Play,
Tape 2 Forward Play Button(with Indicator)
25. CD or Tape Stop Button (with Indicator)
26. Tuning and Time Down Button
27. Memory/Set Button
28. Tape 2 Record Pause Button
29. Tuning and Time Up Button
1
2
3
9
10
4
5
6
11
12
13
7
14
15
8
16
18
24 25 26292827
2322
201921
17
Display
1. CD Pause Indicator
2. Disc Number Indicators
3. Tape 2 Record Indicator
4. FM Stereo Mode Indicator
5. FM Stereo Receiving Indicator
6. Timer Play Indicator
7. Sleep Indicator
8. Timer Recording Indicator
9. CD Play Indicator
10. CD Repeat Play Indicator
11. Karaoke Mode Indicator
12. Tape Reverse Mode Indicator
13. Tape 2 Reverse Play Indicator
14. Tape 1 Play or Tape 2 Forward Play Indicator
15. Memor
Indicator
10
34568217
11
9
12
13 14 15
– 4 –
CD-M8000W
Rear panel
CD-M8000W/CP-M8000
1. Cooling Fan
2. AC Voltage Selector
3. AC Power Lead
4. Transport Screw
5. FM 75 Ohms Aerial Terminal
6. FM Aerial Earth Terminal
7. AM Loop Aerial Socket
8. Span Selector Switch
9. Video/Auxiliary (Audio Signal) Input Sockets
10. 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.
Remote control
1. Remote Control Transmitter
2. Disc Number Select Buttons
3. CD Random Button
4. CD Memory Button
5. CD Track Up or Fast Forward, Tape 2 Fast Wind Button
6. Tuner Preset Up Button
7. Tape 2 Reverse Play Button
8. Tape 2 Record Pause Button
9. Tuner Preset Down Button
10. CD Button
11. Tuner (Band) Button
12. Equaliser Mode Select Button
13. Monster Bass Button
14. On/Stand-by Button
15. Karaoke Mode Button
16. Echo Level Up and Down Buttons
17. CD Clear Button
18. CD Track Down or Fast Reverse, Tape 2 Fast Wind Button
19. CD Play or Repeat, Tape 1 Play,
Tape 2 Forward Play Button
20. CD Pause Button
21. CD or Tape Stop Button
22. Video/Auxiliary Button
23. Tape (1 2) Button
24. Volume Up and Down Buttons
1
5
6
7
8
9
10
11
4
5
1
2
6
7
8
9
10
3
2
14
15
3
4
16
17
18
19
20
21
22
23
Buttons with " " mark in the illustration can be operated on the remote control
only.
CP-M8000
1. Tweeter
2. Super Tweeter
3. Midrange
4. Woofer
5. Bass Reflex Duct
6. Speaker Terminals
1
2
3
4
– 5 –
12
24
13
5
6
CD-M8000W/CP-M8000
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.
engage the claw with the groove
and remove it in the direction
of the arrow. .................
3. Socket ......................(P3) x4
2. Hook.........................(Q2) x2
. ......................
x15
6-3
7-5
(N1) x6
Side Panel
(Left)
(B1)x4
ø3x10mm
Rear
Panel
(B1)x2
ø3x10mm
Figure 6-1
(C2)x3
1
2
CD Player
Unit
(C3)x1
Main PWB
Lug Wire
(E1)x1
ø3x10mm
(C4)x2
Rear
Panel
(C1)x1
ø3x10mm
(D1)x8
ø3x10mm
(C3)x1
Pull
CD Servo
PWB
(D2)x1
Amp.
PWB
CD Tray Cover
2
(E1)x1
ø3x10mm
1
(D1)x1
ø3x10mm
Figure 6-2
Lock Lever
CD Player Unit
(Bottom View)
Figure 6-3
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.
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front
movement.
– 6 –
CD-M8000W/CP-M8000
Tape
Mechanism
(E3)x1
Power PWB
(G2)x1
Transformer
PWB
(F1)x4
ø3x6mm
(E2)x1
(F2)x1
(E3)x1
Figure 7-1
Mic PWB
(E3)x1
(F1)x1
ø3x10mm
(F2)x3
Front
Panel
Main PWB
(G2)x1
Main PWB
(E3)x1
Amp.
PWB
Headphones
PWB
(M1)x2
(M2)x1
Figure 7-4
(N1)x3
Turntable
Loading
Tray
CD Player Unit
Loading Tray
(F1)x1
ø3x10mm
Amp.
PWB
Display PWB
(J2)x15
ø3x10mm
Tape
Mechanism
(K1)x5
ø3x10mm
(G1)x3
ø3x8mm
Figure 7-2
(J3)x1
Front Panel
(J1)x1
(F4)x1
Front Panel
(F3)x5
(H1)x2
ø3x10mm
Open
Headphones
PWB
Push
(H2)x1
Mic
PWB
1
(P2)x1
2
(P1)x2
ø3x10mm
(P3)x2
Figure 7-5
CD Servo
PWB
3
(N1)x3
Loading
Tray
Lug Wire
Figure 7-3
Cassette
Holder
(L1)x1
ø3x10mm
(P3)x2
Figure 7-6
– 7 –
CD-M8000W/CP-M8000
Woofer
Tweeter
Midrange
Speaker Box Ass'y
(B1)x4
ø4x20mm
(C1)x4
ø3x12mm
(A4)x2
ø3x10mm
(D1)x4
ø3x12mm
Super
Tweeter
Front Panel
CD
Mechanism
(Q1)x1
(Q2)x2
(Q1)x1
Loading Tray
Figure 8-1
CP-M8000
STEPREMOVALPROCEDUREFIGURE
1Front Panel/1. Net Ass'y ................ (A1) x18-2
Perform steps 1 to 7 and 10 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 9-1)
1. When you remove the screws (A1) x 2 pcs., the record/
playback head and three-dimensional head of the erase
head can be removed.
How to remove the playback head (TAPE 1)
(See Fig. 9-2)
1. When you remove the screws (B1) x 2 pcs., the playback
head can be removed.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 9-3)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x 1 pc., in the
direction of the arrow <B>.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
Erase Head
(A1) x 2
Ø2 x 6mm
Figure 9-1
CD-M8000W/CP-M8000
TAPE 2
Clutch Ass'y
Record/Playback
Head
TAPE 1
Clutch Ass'y
Playback
Head
How to remove the belt (TAPE 2)
(See Fig. 9-4)
1. Remove the main belt (D1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (D2) x 1 pc.
How to remove the belt (TAPE 1)
(See Fig. 9-4)
1. Remove the main belt (E1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
How to remove the motor (See Fig. 9-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Tape
Motor
Clutch Ass'y
TAPE 2
(B1) x 1
Ø2 x 9mm
Pinch Roller
(C1) x 1
FF/REW
Belt
(D2) x 1
(B1) x 1
Ø2 x 5mm
Figure 9-2
Pull
<B>
Figure 9-3
FF/REW
Roller
Tape
Motor
Pull
<A>
TAPE 2
Main Belt
(D1) x 1
Pinch
Roller
Pawl
Tape
Motor
TAPE 1
Main Belt
(E1) x 1
(F1) x 2
Ø2.6 x 5mm
– 9 –
Flywheel
Ass'y
Main Belt
(D1) x 1
Main Belt
(E1) x 1
Figure 9-4Figure 9-5
Flywheel
Ass'y
TAPE 1
FF/REW
Belt
(E2) x 1
FF/REW
Roller
CD-M8000W/CP-M8000
(A1) x 2
(A1) x 1
Loading Motor
CD Loading
Motor PWB
Loading
Tray
(A1) x 2
Pulley
Drive Belt
(A2) x 1
Loading
Motor
CD MECHANISM SECTION
Perform steps 1, 2, 3, 12, 13, 14 and 15 of the disassembly
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 10-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
2. Remove the drive belt (A2) x 1 pc.
How to remove the pickup (See Fig. 10-2)
1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2) x 1 pc.
2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4).
3. Remove the pickup.
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.
(B3) x 2
ø2.6 x 6mm
Figure 10-1
Stop Washer
(B1) x 1
MECHANISM SECTION
• Driving Force Check
Torque MeterSpecified Value
Play: TW-2111Tape 1: Over 80 g
Tape 2: Over 80 g
• Torque Check
Torque Meter
Play: TW-211130 to 80 g.cm30 to 80 g.cm
Fast forward: TW-2231—70 to 180 g.cm
Rewind: TW-2231—70 to 180 g.cm
Specified Value
Tape 1
Tape 2
Shaft
(B4) x 1
ADJUSTMENT
• Tape Speed
Normal MTT-111Variable3,000 ± 30 HzSpeaker
speedResistor interminal
Gear
(B2) x 1
Figure 10-2
Test Tape
Adjusting
Point
motor.(Load
TAPE MECHANISM
Pickup
CD Mechanism
Specified
Value
Instrument
Connection
resistance:
6 ohms)
Tape
Motor
Variable Resistor in motor
Figure 10-3
– 10 –
CD-M8000W/CP-M8000
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Frequency
Display
AM IF450 kHz1,602 kHzT351*1
AM Band—531 kHz(fL): T306*2
Coverage1.1 ± 0.1 V
AM Tracking 990 kHz990 kHz(fL): T303*1
(Turn the
core of transformer T302
fully counterclock wise)
Instrument
Connection
MAIN PWB
T306
R357
Connection
Connection
CD SECTION
• Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different PWBs and pickups
can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.
Items adjusted automatically
(1) Offset adjustment (The offset voltage between the head
amplifier output and the VREF reference voltage is
compensated inside the IC.)
(3) Gain adjustment (The gain is compensated inside the IC
so that the loop gain at the gain crossover frequency will
be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
CD ERROR CODE DESCRIPTION
ErrorExplanation
01
10*
11*"CLAMP SW", "DISC NO SW" and "OPEN/CLOSE"
31
* 'CHECKING'
If Error is detected, 'CHECKING' will be display instead of 'ERCD**' display. 'ER-CD**' display will only be display when
error had been detected for the 5 th times.
When Pickup set inner position, inner switch
cannot detect 'ON' level for 10 secs.
When tray moves to Open/Close, Open/Close switch
cannot detect 'ON' level for 7 secs.
When disc table rotate to target position.
Clamp switch cannot detect 'ON' level for 7 secs.
When disc table set to Disc1 position for 1 st time,
cannot detect 'ON' level for 14 secs.
When it changes to CD function, DSP cannot read
initial data.
CH1=500 mV
DC 10:1
T
CH2=200 mV
DC 10:1
CH2 : 0.000 V
CH3 : 0.00 V
CH4 : 0.00 V
CH3=1 V
DC 10:1
=Record Length=
Main : 100 K
Zoom : 2 k
1999/04/05 20:26:47
Mode : SINGLE
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
Stopped
T
FDO
1
TE
3
EFBL
2
Smoothing : ON CH1 : 0.000 V
BW : FULL
Figure 11-2
500 ms/div
(500 ms/div)
NORM:20 kS/s
=Trigger==Filter==Offset=
CH2
v/DIV
200 mV
– 11 –
CD-M8000W/CP-M8000
TEST MODE
• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> + <POWER> TEST:CD operation test
Function:-CD test mode.
-Enter test mode.
C D T E S T
OPEN/CLOSE operation is using manual.
<<>>, <<>> buttons make pick's slide possible.
IL isn't done
<<MEMORY>>
key input
Adjustment result
automatically will
display as below
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
explanation:
a) Focus off set="FOFF_XX"
b) Tracking off set="TOFF_XX"
c) Tracking balance="TBAL_XX"
d) Tracking Gain="TGAN_XX"
f) Focus Gain="FGAN_XX"
g) RF level shift="RFLS_XX"
<<PLAY>> key input.<<MEMORY>> key input.
Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly
<<1>> key: Track 4
<<
2>> key: Track 9
3>> key: Track 15
<<
<<STOP>> key input.
STOP
Adjustment result automatically will
display as below for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
Tracking ON play from
that specific point.
<<MEMORY>> key input.
<<STOP>> key input.
VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
STOP
Sliding the PICKUP with
<<>>, <<>> button
must only be in STOP mode.
– 12 –
CD-M8000W/CP-M8000
Standard Specification of Stereo System Error Message Display Contents
CD Changer Mechanism Error.'ER-CD**'10: Changer Error.
(*)11: Initial Error.
12:
13:
CD DSP Communication Error'ER-CD**'31: DSP COMMUNICATION ERROR
Focus Not Match.'NO DISC'
IL Time Over.'NOT READ'
TUNPLL Unlock.'ER-TU**'00: TUN Error.
01: PLL Unlock.
02:
03:
(*) CHECKING:
If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**' display 'ER-CD**' will only be display
when CD changer mechanism error had been detected for the 5 th times.
Speaker abnormal detection and +B PROTECTION display
In case speaker abnormal detection or +B PROTECTION had occured, it can be check by pressing 'POWER', 'VIDEO' and 'XBASS' key twice. Display will show "S** B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION.
** is in hex valve.
+B PROTECTION is condition when irregular process occur on power supply line.
– 13 –
CD-M8000W/CP-M8000
NOTES ON SCHEMATIC DIAGRAM
• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
• 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.
( ) indicates the record state.
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.