Sharp CD-XP300W User manual

CD-XP300W
No. S4220CDXP300W
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION......................................................................................................................................................2
AC POWER SUPPLY CORD AND AC PLUG SDARTOR..................................................................................................2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 6
DISASSEMBLY.................................................................................................................................................................. 8
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 11
ADJUSTMENT ................................................................................................................................................................. 12
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
TYPES OF TRANSISTOR AND LED............................................................................................................................... 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 20
VOLTAGE ........................................................................................................................................................................ 37
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 38
TROUBLESHOOTING..................................................................................................................................................... 39
FUNCTION TABLE OF IC................................................................................................................................................ 43
FL DISPLAY..................................................................................................................................................................... 50
REPLACEMENT PARTS LIST/EXPLODED VIEW
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
MINI COMPONENT SYSTEM
MODEL CD-XP300W
CD-XP300W Mini Component System consisting of CD-XP300W
(main unit) and CP-XP300 (speaker system).

CD-XP300W
– 2 –
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
IMPORTANTTHATTHEFOLLOWINGPRECAUTIONSAREOBSERVEDDURINGSERVICINGTOPROTECTYOUREYES
AGAINST EXPOSURE TO THE LASER BEAM.
1-WHENTHECABINETISREMOVED,THEPOWERISTURNEDONWITHOUTACOMPACTDISCINPOSITIONANDTHE
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.
Turntheselectorwith a screwdriver untiltheappropriatevoltagenumber appears inthewindow(110V, 127 V, 220Vor230 V-240 V AC).
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCE0008AW00 QACCZ0007AW00
QACCL0005AW00
QPLGA0003AWZZ
VOLTAGE SELECTION
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
QPLGA0004AWZZ
QACCA0003AW00
QACCJ0007AW00

– 3 –
CD-XP300W
SPECIFICATIONS
Specifications for this model are subject to change without
prior notice.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
General
Amplifier
CD player
Power source AC 110/127/220/230 - 240 V, 50/60 Hz
Power consumption 107 W
Dimensions Width: 270 mm (10-5/8")
Height: 330 mm (13")
Depth: 355 mm (13-15/16")
Weight 8.5 kg (18.7 lbs.)
Output power MPO: 336 W (168 W + 168 W) (10 % T.H.D.)
RMS: 200 W (100 W + 100 W) (10 % T.H.D.)
RMS: 158 W (79 W + 79 W) (0.9 % T.H.D.)
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 kohms
Microphone: 1 mV/600 ohms
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)
Tuner
Cassette deck
Frequency range FM: 88 - 108 MHz
AM: 531 - 1,602 kHz
Frequency response 50 - 14,000 Hz (Normal tape)
Signal/noise ratio 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter 0.3 % (WRMS)
Type 2-way type speaker system
5 cm (2") Tweeter
16 cm (6-1/2") Woofer
Maximum input power 200 W
Rated input power 100 W
Impedance 6 ohms
Dimensions Width: 220 mm (8-11/16")
Height: 330 mm (13")
Depth: 232 mm (9-1/8")
Weight 3.3 kg (7.3 lbs.)/each
CD-XP300W
CP-XP300

CD-XP300W
– 4 –
NAMES OF PARTS
Front panel
1. Disc Tray
2. Timer Set Indicator
3. On/Stand-by Button
4. Tuner (Band) Button
5. CD Button
6. Headphone Socket
7. Microphone Level Control
8. Microphone Socket
9. Tape (1 2) Button
10. Video/Auxiliary Button
11. Equaliser Mode Select/Extra Bass/Demo Mode Button
12. Disc Tray Open/Close Button
13. Disc Skip Button
14. Volume Up and Down Buttons
15. Tape 1 Cassette Compartment
16. Tape 2 Cassette Compartment
17. CD Track Down or Fast Reverse, Tape 2 Fast Wind,
Tuner Preset Down Button
18. CD Track Up or Fast Forward, Tape 2 Fast Wind,
Tuner Preset Up Button
19. Clock Button
20. Timer/Sleep Button
21. Tape 2 Reverse Mode Select Button
22. Tape 2 Reverse Play Button
23. CD Play or Repeat, Tape 1 Play, Tape 2 Forward Play Button
24. CD or Tape Stop Button
25. Tuning and Time Down Button
26. Memory/Set Button
27. Tape 2 Record Pause Button
28. Tuning and Time Up Button
3
2
1
4
9
10
11
12
13
14
16
5
6
7
815
17
23 2425 282726
1918 20
2221
Display
1. CD Pause Indicator
2. Extra Bass Indicator
3. Disc Number Indicators
4. Tape 2 Record Indicator
5. FM Stereo Mode Indicator
6. FM Stereo Receiving Indicator
7. Timer Play Indicator
8. Sleep Indicator
9. Timer Recording Indicator
10. CD Play Indicator
11. CD Repeat Play Indicator
12. Karaoke Mode Indicator
13. Tape Reverse Mode Indicator
14. Tape 2 Reverse Play Indicator
15. Tape 1 Play or Tape 2 Forward Play Indicator
16. Memory Indicator
Rear panel
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
24567931 8
12
13
14 15 16
10
11
CD-XP300W
5
6
7
8
1
3
29
10
4

– 5 –
CD-XP300W
1
2
334
Remote control
1. Remote Control Transmitter
2. On/Stand-by Button
3. Disc Number Select Buttons
4. CD Random Button
5. CD Memory Button
6. Karaoke Mode Button
7. Tape 2 Record Pause Button
8. CD Track Down or Fast Reverse, Tape 2 Fast Wind Button
9. CD or Tape Stop Button
10.Tape 2 Reverse Play Button
11. CD Button
12. Tuner (Band) Button
13. Video/Auxiliary Button
14. Extra Bass Button
15. Equaliser Mode Select Button
16. CD Clear Button
17. Echo Level Up and Down Buttons
18. Tuner Preset Up and Down Buttons
19. CD Pause Button
20. CD Track Up or Fast Forward, Tape 2 Fast Wind Button
21. CD Play or Repeat, Tape 1 Play, Tape 2 Forward Play Button
22. Tape (1 2) Button
23. Volume Up and Down Buttons
Buttons with " " mark in the illustration can be operated on the remote control
only.
Other buttons can be operated both on the main unit and the remote control.
1
2
3
4
5
6
7
8
9
11
12
14
18
19
20
21
22
15
16
23
10
13
17
1. Tweeter
3. Bass Reflex Duct
4. Speaker Wire
2. Woofer
CD-XP300W
CP-XP300

CD-XP300W
– 6 –
Setting the clock
In this example, the clock is set for the 24-hour (0:00) display.
Note:
The "CLOCK" or time will flash at the push of the CLOCK button when the AC power
supply is restored after a power failure or unplugging the unit.
Readjust the clock as follows.
To readjust the clock:
Perform "Setting the clock" from step 1. If the time display is flashing, step 3 (for
selecting the 24-hour or 12-hour display) will be skipped.
To change the 24-hour or 12-hour display:
1
Press the ON/STAND-BY button to turn the power on.
2
Press the CLOCK button and within 5 seconds, press the MEMO-
RY/SET button.
3
Press the TUNING/TIME ( or ) button to select 24-hour or 12-
hour display and then press the MEMORY/SET button.
"0:00" The 24-hour display will appear.
(0:00 - 23:59)
"AM 12:00" The 12-hour display will appear.
(AM 12:00 - PM 11:59)
"AM 0:00" The 12-hour display will appear.
(AM 0:00 - PM 11:59)
Note that this can only be set when the unit is first installed or it has been reset.
[Refer to "Clearing all the memory (reset)".]
4
Press the TUNING/TIME ( or ) button to adjust the hour andthen
press the MEMORY/SET button.
Press the TUNING/TIME ( or ) button once to advance the time by 1 hour.
Hold it down to advance continuously.
When the 12-hour display is selected, "AM" will change automatically to "PM".
5
Press the TUNING/TIME ( or ) button to adjust the minutes and
then press the MEMORY/SET button.
Press the TUNING/TIME ( or ) button once to advance the time by 1
minute. Hold it down to change the time in 5-minute intervals.
The hour will not advance even if minutes advance from "59" to "00".
The clock begins counting from "0" seconds. (Seconds are not displayed.)
The time display will disappear after a few seconds.
To confirm the time display:
Press the CLOCK button.
The time display will appear for about 5 seconds.
1 Clear all the programmed contents. [Refer to "Clearing all the memory (reset)".]
2 Perform "Setting the clock" from step 1.
OPERATION MANUAL
Setting the AC voltage selector
Check the setting of the AC voltage selector located on the rear panel before plug-
ging the unit into a wall socket. If necessary, adjust the selector to correspond to the
AC power voltage used in your area.
Turn the selector with a screwdriver until the appropriate voltage num-
ber appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).
Connecting the AC power lead
After making all connections, plug the unit. If you plug the unit first,
the unit will enter the demonstration mode.
Notes:
The unit will start the tape initialisation when plugged in to the AC socket. During
this process, initialising sound will be heard and the unit cannot be turned on. Wait
until the process is finished.
Unplug the AC power lead from the wall socket if the unit will not be in use for a
prolonged period of time.
AC Plug Adaptor
In areas (or countries) where a wall socket as shown in illustration is used, connect
the unit using the AC plug adaptor supplied with the unit, as illustrated. The AC plug
adaptor is not included in areas where the wall socket and AC power plug can be
directly connected (see illustration ).
1
2
System connections
Setting the FM/AM span selector
The International Telecommunication Union (ITU) has established thatmember coun-
tries should maintain either a 100 kHz or a 50 kHz interval between broadcasting fre-
quencies of FM stations and 10 kHz or 9 kHz for AM station. The illustration shows
the 50/9 kHz zones (regions 1 and 3), and the 100/10 kHz zone (region 2).
Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to the
interval (span) of your area.
To change the tuning zone:
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD programme.
1 Press the ON/STAND-BY button to enter the stand-by mode.
2 Set the SPAN SELECTOR switch (on the rear panel) as follows.
For 50 kHz FM interval (9 kHz in AM) 50/9
For 100 kHz FM interval (10 kHz in AM) 100/10
3 Whilst pressing down the CLOCK button and the EQUALIZER/X-BASS/DEMO but-
ton, press the ON/STAND-BY button until "CLEAR AL" appears.

– 7 –
CD-XP300W
Troubleshooting chart
Many potential problems can be resolved by the owner without calling a service tech-
nician.
If something is wrong with this product, check the following before calling your autho-
rised SHARP dealer or service centre.
General
CD player
Tuner
Cassette deck
Karaoke
Remote control
Symptom Possible cause
The clock is not on time. Did a power failure occur? Reset the
clock.
When a button is pressed, the unit
does not respond. Set this unit to the power stand-by mode and then turn it back on.
If the unit still malfunctions, reset it.
No sound is heard. Is the volume level set to "0"?
Are the headphones connected?
Are the speaker wires disconnected?
Isthe karaokemodeset to"L-CH","R-CH"
or "V-CANCEL"?
Symptom Possible cause
Playback does not start. Is the disc loaded upside down?
Playback stops in the middle or is
not performed properly. Does the disc satisfy the standards?
Is the disc distorted or scratched?
Playback sounds are skipped, or
stopped in the middle of a track. Is the unit located near excessive vibra- tions?
Is the disc very dirty?
Has condensation formed inside the unit?
Symptom Possible cause
Radio makes unusual noise con-
secutively. Is the unit placed near the TV or comput- er?
Is the FM aerial or AM loop aerial placed
properly? Move the AC power lead or the
unit away from the aerial if located near.
Symptom Possible cause
Cannot record. Is the erase-prevention tab removed?
Cannot record tracks with proper
sound quality. Is it a normal tape? (Youcannot record on a metal or CrO tape.)
Cannot erase completely.
Sound skipping. Is there any slack?
Is the tape stretched?
Cannot hear treble. Are the capstans, pinch rollers, or heads
dirty?
Sound fluctuation.
Cannot remove the tape. If a power failure occurs during playback,
the heads remain engaged with the tape.
Do not open the compartment forcibly.
Wait until electricity resumes.
Symptom Possible cause
The vocal part of a multiplexed
disc is not heard. Isthe karaokemodeset to"L-CH","R-CH" or "V-CANCEL"?
Symptom Possible cause
The remote control does not oper-
ate. Is the AC power lead of the unit plugged in?
Is the battery polarity respected?
Are the batteries dead?
Is the distance or angle incorrect?
Does the remote control sensor receive
strong light?
Troubleshooting chart
If trouble occurs
When this product is subjected to strong external interference (mechanical shock,
excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is
operated incorrectly, it may malfunction.
If such a problem occurs, do the following:
1 Set the unit to the stand-by mode and turn the power on again.
2 If the unit is not restored in the previous operation, unplug and plug in the unit,
and then turn the power on.
Note:
If neither operation above restores the unit, clear all the memory by resetting it.
Clearing all the memory (reset)
1 Press the ON/STAND-BY button to enter the power stand-by mode.
2 Whilst pressing down the CLOCK button and the EQUALIZER/X-BASS/DEMO
button, press the ON/STAND-BY button until "CLEAR AL" appears.
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD programme.
Before transporting the unit
On the back of this unit is equipped with a transport screw in order to prevent damage
during transportation.
1 Press the ON/STAND-BY button to turn the
power on.
2 Press the CD button.
3 Press the OPEN/CLOSE button to open
the disc tray.
Remove all CDs inserted in the unit.
4 Press the OPEN/CLOSE button to close
the disc tray.
Make sure that "NO DISC" is displayed.
5 Press the ON/STAND-BY buttonto enter the
stand-by mode, and then unplug the AC
power lead from the wall socket.
6 Insert the transport screw into the back of
the unit and tighten it with a flat head screw-
driver or a coin.
Remote control
Test of the remote control
Point the remote control directly at the remote
sensor on the unit.
The remote control can be used within
the range shown:
Press the ON/STAND-BY button. Does the pow-
er turn on? Now, you can enjoy the music.
Remote sensor
0.2 m - 6 m
(8" - 20')

CD-XP300W
– 8 –
1 Top Cabinet 1. Screw ...................... (A1) x4 8-1
2 Side Panel 1. Screw ...................... (B1) x8 8-1
(Left/Right)
3 CD Tray Cover/ 1. Turn on the power supply,.. 8-2
CD Player Unit open the disc tray, take out
the CD tray cover, and close.
(Note 1)
2. Screw ...................... (C1) x1
3. Hook........................ (C2) x3
4. Hook........................ (C3) x2
5. Socket ..................... (C4) x2
4 Rear Panel with 1. Screw .................... (D1) x10 8-2
Fan Motor 2. Socket ..................... (D2) x1
5 Main PWB 1. Screw ...................... (E1) x4 8-2, 9-1
2. Socket ..................... (E2) x4 9-1
3. Flat Cable ............... (E3) x1
4. Flat Wire.................. (E4) x1
6 Front Panel 1. Screw .......................(F1) x2 9-1
2. Hook.........................(F2) x2
3. Socket ......................(F3) x1
7 Mic PWB 1. Screw ...................... (G1) x2 9-1
2. Lug Wire.................. (G2) x1
8 Display PWB 1. Screw .................... (H1) x12 9-2
2. Flat Cable ............... (H2) x1
9 Tape Mechanism 1. Open the cassette holder. 9-2
2. Screw...................... (J1) x5
10 Headphones PWB 1. Screw ...................... (K1) x1 9-2
11 Turntable 1. Hook.........................(L1) x2 9-3
2. Cover .......................(L2) x1
12 Loading Tray 1. Turn fully the lock lever in the 8-3
arrow direction .
2. Push the loading tray backward 9-4
to engage the claw with the
groove and remove it in the
direction of the arrow .. (M1) x6
13 CD Servo PWB 1. Screw ...................... (N1) x2 9-5
(Note 2) 2. Hook........................ (N2) x1
3. Socket ..................... (N3) x4
14 CD Mechanism 1. Hook........................ (P1) x2 9-6
2. Hook........................ (P2) x2
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.Takeoffnylonbands or wire holders wheretheyneedto
beremovedwhendisassemblingtheunit.Afterservicing
theunit,besuretorearrange the leads where they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 8-2
STEP REMOVAL PROCEDURE FIGURE
Figure 8-1
Note 1: How to open the changer manually. (Fig. 8-3)
1. In this state, turn fully the lock lever in the arrow direction through
the hole 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,wraptheconductivealuminiumfoilaroundthefrontend
of the connector so as to protect the optical pickup from electro-
static 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.
(B1) x 2
ø3 x 10mm
(A1) x 2
ø3 x 12mm
(A1) x 2
ø3 x 12mm
(B1) x 2
ø3 x 10mm
(B1) x 4
ø3 x 10mm
Rear
Panel
Side Panel
(Right)
Side Panel
(Left)
Top Cabinet Front
Panel
Figure 8-3
Lock Lever
CD Player Unit
(Bottom View)
(C3) x 1
CD Player
Unit
CD Tray Cover (C2) x 3
1
1
2
2
(E1) x 1
ø3 x 10mm
(C1) x 1
ø3 x 10mm
(E1) x 1
ø3 x 10mm
(D1) x 1
ø3 x 10mm
Lug Wire
Main PWB
Rear
Panel
Pull
(C3) x 1
(C4) x 2
CD Servo
PWB
Main
PWB
(D2) x 1
(D1) x 9
ø3 x 10mm
Pull
Front
Panel
CD-XP300W
CD-XP300W

– 9 –
CD-XP300W
Figure 9-1
Figure 9-2
Figure 9-3
Figure 9-4
Figure 9-5
Figure 9-6
(E2) x 1
Tape
Mechanism
(F1) x 2
ø3 x 10mm
Display
PWB
Front
Panel
(E1) x 2
ø3 x 10mm
(F2) x 1
(F2) x 1
(E2) x 1
(F3) x 1
(E3) x 1
(E2) x 1
Main PWB
Transformer
PWB
Power PWB
Pull
Pull
Mic
PWB
(G1) x 2
ø3 x 10mm
(G2) x 1
(E2) x 1
Headphones
PWB
(E4) x 1
(H2) x 1
(H1) x 12
ø3 x 10mm
Display PWB
Open
Cassette
Holder
Tape Mechanism
(K1) x 1
ø3 x 10mm
Front Panel
(J1) x 5
ø3 x 10mm
Lug Wire
Headphones
PWB
Display
PWB
CD Player Unit
Loading
Tray
Turntable
(L2) x 1
(L1) x 2
(M1) x 3
3
(M1) x 3 Loading Tray
1
2
CD Player Unit
Loading
Tray
(N1) x 2
ø3 x 10mm
(N3) x 2 CD Servo
PWB
(N2) x 1
(N3) x 2
CD
Mechanism (P2) x 2
(P1) x 1
(P1) x 1 Loading Tray

CD-XP300W
– 10 –
Figure 10-1 Figure 10-2
1 Woofer 1. Front Panel Ass'y.... (A1) x1 10-1
2. Screw ...................... (A2) x4 10-2
2 Tweeter 1. Screw ...................... (B1) x2 10-2
STEP REMOVAL PROCEDURE FIGURE
Screwdriver
Driver should
be pried away
from Speaker Box.
(A1) x 1
Speaker Box
(A2) x 4
ø4 x 16mm
(B1) x 2
ø3 x 10mm
Speaker Box
Woofer
Tweeter
CP-XP300

– 11 –
CD-XP300W
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 9 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 11-1)
1. When you remove the screws (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removed.
How to remove the playback head (TAPE 1)
(See Fig. 11-2)
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. 11-3)
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.
How to remove the belt (TAPE 2)
(See Fig. 11-4)
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. 11-4)
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. 11-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 11-1
Figure 11-2
Figure 11-3
Figure 11-4Figure 11-5
(A1) x 2
Ø2 x 9mm
TAPE 2
Record/Playback
Head
Erase Head
Clutch Ass'y
(B1) x 2
Ø2 x 9mm
TAPE 1
Playback
Head
Clutch Ass'y
Pinch Roller
(C1) x 1 <A>
<B>
Pinch
Roller
Pawl
Pull
TAPE 2 TAPE 1
Main Belt
(E1) x 1
TAPE 2
Main Belt
(D1) x 1
TAPE 1
Main Belt
(D1) x 1 Main Belt
(E1) x 1
FF/REW
Belt
(D2) x 1
FF/REW
Belt
(E2) x 1
Motor
Motor
Tape
Motor
(F1) x 2
Ø 2.6 x 5mm
Clutch Ass'y

CD-XP300W
– 12 –
How to remove the pickup (See Fig. 12-2)
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) x 1 pc.
3. Remove the pickup.
Note
After removing the connector for the optical pickup from the
connectorwraptheconductivealuminiumfoilaroundthefront
end of connector so as to protect the optical pickup from
electrostatic damage.
Figure 12-2
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11, 12, 13 and 14 of the disassembly
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 12-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
Figure 12-1
ADJUSTMENT
MECHANISM SECTION
•Driving Force Check
Torque Meter Specified Value
Play: TW-2111 Tape 1: Over 80 g
Tape 2: Over 80 g
•Torque Check
Torque Meter
Tape 2
Play: TW-2111 30 to 80 g.cm 30 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
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
Normal MTT-111 Variable 3,000 ±30 Hz Speaker
speed Resistor in Terminal
motor. (Load
resistance:
6 ohms)
•Tape Speed
Figure 12-3
(B3) x 2
ø2.6 x 6mm
Shaft
(B4) x 1
Stop Washer
(B1) x 1
Gear
(B2) x 1
CD Mechanism
Pickup
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor
(A1) x 5
Loading
Motor PWB
Loading
Motor
Loading
Tray

– 13 –
CD-XP300W
Figure 13-2
CD ERROR CODE DESCRIPTION
Error Explanation
01 When Pickup set inner position, inner switch
cannot detect 'ON' level for 10 secs.
When tray moves to Open/Close, Open/Close switch
10* 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,
11* "CLAMP SW", "DISC NO SW" and "OPEN/CLOSE"
cannot detect 'ON' level for 14 secs.
31 When it changes to CD function, DSP cannot read
initial data.
T
T
EFBL
FDO
TE
Stopped
CH1=500 mV
DC 10:1 CH2=200 mV DC 10:1 CH3=1 V DC 10:1 500 ms/div
(500 ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V Main : 100 K Zoom : 2 k Mode : SINGLE 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=
CH2
v/DIV
200 mV
1999/04/05 20:26:47
CD SECTION
Figure 13-1 ADJUSTMENT POINTS
Items adjusted automatically
(1)Offsetadjustment(Theoffsetvoltagebetweenthehead
amplifier output and the VREF reference voltage is
compensated inside the IC.)
* Focus offset adjustment
* Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing
Fig.13-2 EFBL)
(3)Gain adjustment(ThegainiscompensatedinsidetheIC
sothattheloopgainat the gain crossover frequency will
be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
•Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacingthe pickup.Therefore, differentPWBs andpickups
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.
FM IF
FM RF
L312
T301
FM BAND
COVERAGE fL
AM IF
TP301
TP302
R381
R357
T303
T306
T351
CNP301
AM LOOP
ANTENNA
AM BAND
COVERAGE fL AM TRACKING
fL
MAIN PWB
IC301
SO302
FM ANTENNA
TERMINAL
T302
* 'CHECKING'
IfErrorisdetected,'CHECKING'willbedisplayinsteadof'ER-
CD**' display. 'ER-CD**' display will only be display when
error had been detected for the 5 th times.
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
AM IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM Tracking 990 kHz 990 kHz (fL): T303 *1
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal
•FM IF
Signal generator: 10.7 MHz, FM modulated
•FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
FM Band — 87.50 MHz T301(fL): *1
Coverage 3.4 V ±50 mV
FM RF 98.00 MHz 98.00 MHz L312 *2
(10-30 dB)
Test Stage Instrument
Connection
Frequency Frequency
Display Setting/
Adjusting
Point
IF 10.7 MHz 98 MHz T302 *1
(Turn the
core of trans-
former T302
fully counter-
clock wise)
Test Stage Instrument
Connection
Frequency Frequency
Display Setting/
Adjusting
Point
*1. Input: Antenna Output: TP301

CD-XP300W
– 14 –
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.
Do TOC IL. Do normal play.
When these following key is input
into PLAY key, track number can
be appoint directly.
<<PLAY>> key input. <<MEMORY>> key input.
<< 1>> key: Track 4
<< 2>> key: Track 9
<< 3>> key: Track 15
<<STOP>> key input.
STOP
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
Tracking ON play from
that specific point.
<<STOP>> key input.
STOP
IL isn't done
VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
Sliding the PICKUP with
<< >>, << >> button
must only be in STOP mode.
<<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"
Adjustmentresultautomaticallywill
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"
<<MEMORY>> key input.

– 15 –
CD-XP300W
Standard Specification of Stereo System Error Message Display Contents
Error Contents DISPLAY Notes
TAPE Mechanism Error. 'ER-TA**' 00: Tape Mechanism Error.
01: Initial Error.
02:
03:
CD Pickup Mechanism Error. 'ER-CD**' 01: PU-IN SW Detection NG.
02:
03:
04:
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'
TUN PLL Unlock. 'ER-TU**' 00: TUN Error.
01: PLL Unlock.
02:
03:
(*) CHECKING:
IfCDchangermechanismerrorisdetected, 'CHECKING'willbedisplayinstead of'ER-CD**'display'ER-CD**'willonlybedisplay
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 occurred, it can be check by pressing 'POWER', 'VIDEO' and 'X-
BASS' 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.

CD-XP300W
– 16 –
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
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 “ 1” ( ) 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
•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.
REF. NO DESCRIPTION POSITION
SW713 TAPE ON—OFF
SW714 VIDEO/AUX ON—OFF
SW715 TIMER/SLEEP ON—OFF
SW716 TUNING/TIME UP ON—OFF
SW717 RECORD PAUSE ON—OFF
SW718 MEMORY/SET ON—OFF
SW719 TUNING/TIME DOWN ON—OFF
SW720 CLOCK ON—OFF
SW721 VOLUME UP ON—OFF
SW722 VOLUME DOWN ON—OFF
SW723 DISC SKIP ON—OFF
SW724 OPEN/CLOSE ON—OFF
SW725 EQUALIZER/X-BASS/DEMO ON—OFF
SW801 VOLTAGE SELECTOR 230-240 V
SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW601 SPAN SELECTOR 50 kHz/9 kHz
SW701 ON/STAND-BY ON—OFF
SW702 FAST REWIND/PRESET DOWN ON—OFF
SW703 FAST FORWARD/PRESET UP ON—OFF
SW704 STOP ON—OFF
SW705 PLAY/REPEAT ON—OFF
SW706 REVERSE PLAY ON—OFF
SW707 REVERSE MODE ON—OFF
SW711 CD ON—OFF
SW712 TUNER (BAND) ON—OFF
TYPES OF TRANSISTOR AND LED
REF. NO DESCRIPTION POSITION
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
B C E
FRONT
VIEW
KRC102 M
KRC104 M
KTA1266 GR
KTA1273 Y
KTA1274 Y
SLR342VCJKTC2026
FRONT
VIEW
KTC3194 Y
KTC3199 GR
KTC3200 GR
KTC3203 Y

– 17 –
CD-XP300W
Figure 17 BLOCK DIAGRAM (1/3)
+5V
(+B7)
CNS4
BI4
CNP4
M3
CD LOADING
MOTOR
+–
+3.3V(+B11)
TO DISPLAY SECTION
TO MAIN SECTION
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V(+B11)
Q1
+5V
(+B7)
PICKUP UNIT
IC1
LC78645NE
CD SERVO
VDD LDD LDS
M
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNP8
CNP7
TRACKING COIL
FOCUS COIL
SW4
PICKUP
IN
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
Q3
XVDD RVDD LVDD RFVDD
XL1
33.8688 MHz
O/C CLAMP SW CD RES CL DI DO CE DRF WRQ
+6.5V (+B4) D_GND (DRIVER)
+5V (+B8)
VCC3
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2 F TIN1 E FIN2 B FIN1 A
TDO
FDO
SPDO
SLDO
CONT5
CONT2 CONT3 CONT4
VDD5
LCHO
RCHO
80
79
75
20
5
40
18
24
23 14
8
21
22
29
35
41
47 46
38
VVDD
77 10
987
15
1
2
17
25
42 41 39 38
4765 16
28
26 27
316452
316452
316452
54
71
61
62
63 69
57
56
55
51
50
43
44
40
37
19
28
26
23
22
21
327168910
687
+5V (+B7) D_GND
L-CH
35 4
A_GND
R-CH
12
4245 68 25 70
64
65
66
DRF
67
48
49
ADAVDD
18
+3.3V
(+B11)
DISC NO
~~
ZD1
3.3V
+
–
–
+

CD-XP300W
– 18 –
Figure 18 BLOCK DIAGRAM (2/3)
+B6
7 8654312
+B4
JK1
MIC
L
R
ICK1
M65856SP
MIC AMP.
ICK2
KIA4558P
OPE AMP.
LATCH
MIC IN
VRK1
MIC
VOLUME
CLOCK
DATA
L OUT
R OUT
L IN
R IN
VCC
MCLKCONT
VACL
+B5
+B5
98
1
5
6
2
3
7
12
13
23
2
QK1
32
31
35
36
42
41
40
L R
L R
3
OSC BUFF
FM IF
FM
OSC
B.P.F
SO302
FM ANTENNA
TERMINAL
Q302
FM
RF
OSC
FM
L312 T301
CF303
T302
IC301
TA7358AP
FM FRONT END
BF301
34578
9
6
2
1
FM
ANTENNA
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
L
R
JK690
VIDEO/
AUX IN
+B5
CLK
+B6
+B6
+B6 +B5
AM IF
AM LOOP
ANTENNA
CNP301
BI601
–20dB
ATT
Q101~
Q104
Q107
Q108
Q601
Q602
Q
Q
10.7 MHz
450 kHz
REC/PL
A
CLK
CE
DI
DO DI CE
MO/ST
CONSTANT
VOLTAGE
+B5
FM/AM
IC302
LC72131
PLL
(TUNER)
FM/AM
OUT
R
L
T
MUTING
P.B. REC.
AC BIAS
TAPE
TUNER
CD
PB
CNP7
FROM
CD SERVO
SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
Q706
Q707
Q708
SWITCHING
Q109
BIAS OSC
Q111
L103
Q105
Q106
RECORD/
PLAYBACK
HEAD
TAPE 2
PLAYBACK
HEAD
TAPE 1
L-CH
R-CH
L-CH
R-CH
IC601
LC75341
AUDIO
PROCESSOR
+B5
R
L
REC
R
L
ALC
R REC
L REC
POP
REDUCE
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
+B7 +B8
R
L
PHASE
(FM/AM)
MPX IN
STEREO
AM RF IN
AM OSC IN AM OSC OUT
Q360
X OUT
X352
4.5 MHZ
AM BAND
COVERAGE
AM
TRACKING
T303 T306
X351
456 kHz
ZD351
5.1V
MO/ST
MPX VCO
FM
DET
VCC
GND
AM IF
IN
CF351
IC303
LA1832S
FM IF DET.
FM MPX./AM IF
AM MIX
OUT
CF352
T351
21
4
24
2
1
1718 8
9
10
18
11
16
3
15
10
9
7
23
14
12
13
19
7
18
10
13
21
4
2
24
23
6
9
16
12
11
15
1
5413
21
7
985
17
6
21
21
20 22 11
17
1615
13
14
12
15
162324
4
7
H/N
P.B
REC
T1/T2
T1/T2
ALC
+B5
+B5
+B5 TAPE
MECHANISM
ASS'Y
MOTOR
DRIVER
SOLENOID
DRIVER
+B3
+B3
AOUT
X IN
R L
+B5
L
R
L
R
L
R
+B5
VDD

– 19 –
CD-XP300W
Figure 19 BLOCK DIAGRAM (3/3)
KIA7805AP
AN78L05
110V 127V 220V 230-240V
Q905
–VF
VF2 VF1
Q801
IC855
+B2
+B3
+B4
-B1
+B1
-B2
+B7
+B3
+B10
-
12 13 41
5
19
Q705
R
L
+B10
RX701
REMOTE
SENSOR
D803, D804
D802
D801
RL914
JK701
HEADPHONES
M4
FAN
MOTOR
M
Q906
Q709
1
2
Q603
Q604
IC901
STK41221
POWER AMP.
F804
T2A L 250V
VOLTAGE
REGULATOR
F803
T2A L 250V
F805
T5A L 250V
F807
T2.5A L 250V
F806
T2.5A L 250V
F802
T4A L 125V
F801
T4A L 125V
R-OUT
L-OUT
Q901~
Q904
CLK
SO901
SPEAKER
TERMINAL
AC POWER
SUPPLY CORD
AC 110/127/220/
230-240 V, 50/60 Hz
32
EC/PLAY
VLOAD
RESET
+B10 +B10
+B10
+B10
+B9
VDD VDD VDD
~
CE DI DO
XL700
4.194304 MHz
BIAS
T1/T2
AVDD
SW701~SW707
SW711~SW725
KEY
TO CD
SERVO
SECTION
IC701
IX0532AW
SYSTEM
MICROCOMPUTER
FL701
FL DISPLAY
27
85
80
33 45
93
14
92
1245678
14
18
2
78
70
51
3
2
1
11
6
71
58
100
33
31
37
54
15
46
1112
9
10 16 17 20
9
21222324
41
79
38
56 55 5245 51 50
30 49
48 40 25 13
39
34
T.F.
PT801
POWER
TRANSFORMER
SYSTEM
MUTE
~
~~
91
86
~
~~~
TAPE
MECHANISM
ASS'Y
RESET
SP DET.
SP RELAY
ON-OFF
FAN MOTOR
DRIVER
IC851
IC852
IC853
IC854
M_+13V
LD+7V
+B5
+B10
A+10V
UNSW_5.6V
+B7
+B8
+B9
D_5V
A_5V
SW_5V
KIA7810AP
KIA7812AP
IC851~IC854
VOLTAGE REGULATOR
VOLTAGE
REGULATOR
+B10
SW801
VOLTAGE
SELECTOR
~
SW601
SPAN
SELECTOR
SPAN

CD-XP300W
– 20 –
Figure 20 SCHEMATIC DIAGRAM (1/10)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
LASER DRIVER
80 79 78 77 76 75 74 73
7
27 28
2
21 22 23 24 25 26
21 20 19 18 17 16 15 11
1213
14 10
9 8 7 6 5 4 3 2 1
32 33 34 35 36 37 42
41
40
39
38
22 23 24 25 26 27 28 29 30 31
MUTE
TP3
TP2
TP1
LD_M+
LD_M–
VCC4
M– M+
VCC3 SPO
VCC2
SLDO
VCC
STANDBY
VREF
TO FD
SP-
SL–
SL+
SP+
TR– TR+ FO+ FO– GND
GND
FO–
LD
VR
PD
FO+
TR+
TR–
C
F
B
A
E
VREF
VCC
LDD
LDS
FR
VVDD
PCKIST
VVSS
PDO2 PDO1
DEFECT
SBCK/FG CONT5 CONT4 GPDAC SLDO SPDO FDO
REF1
VREF
20
19
18
TDO
ADA
V
ADA
V
JITTC
RFMON
TE
TEC
FE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
RSVSS
RFVDD
RF
EFMIN
2
1 SLCI
S
SLC
O
HPC1LX
PICKUP
F
C
B
A
E
VCC
VREF
1
7
6
3
8
4
5
21
7
6
3
8
4
5
21
7
6
3
8
4
5
21
7
6
3
8
4
5
2
GND
TR–
TR–
TR+
TR+
FO+
FO+
FO– PD
LD
VR
4
1
7
2
6
3
54
1
7
2
6
3
54
1
7
2
6
3
54
1
7
2
6
3
5
GND
PUIN
SL+
SL–
SP–
SP+
SLIDE
SPIN
+
+
–
–
M
M
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
PU-IN
+
+
+
+
+
+
+ +
PICKUP UNIT
1
3
CD MOTOR PWB-D
CD SERVO PWB-C
+B
+B
+B
+B +B
+B
+B
+B
+B+B
+B +B
R3 22K
R4 8.2K
R5 8.2K
R6 22K
R1
8.2K
R2
8.2K
CNP1
CNS1A CNS1B
C1
47/25
C2
0.01
C38
0.01
C39
100/10
C40
220/6.3
CNP3
CNS3A CNS3B CNP3A
C41
100/10 C46
100/10
R44
12K
C52
0.001 C53
0.001
C4
0.001
C3
47/25
C9
100/10
C50
22P(CH)
R12
330 C8
0.0027
C6
0.1
R7
47
Q1
KTA1266 GR
R9
3.3 R10
27K
C28
C57
C27
C34
C32
C30
C33
C35
R39
R40
680 C36
0.22/50
C37
0.1
R41
12K
R42
1.2K
LC7
8
CD
S
R11
10K
C11
0.22/50
C12
100P(CH)
C54
0.022
C10
10/50
R13
1K
R14
1K
R15
1KR16
1K
R17 1K
R18 1K
D
DS1
S
C5
0.047
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
SW4
PICKUP IN
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
CNP2
CNS2A CNS2B
CD SIGNAL
78
5
4
6
1
2