Sharp CD-DP2500W User manual

No. S4034CDDP2500
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION..................................................................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 8
DISASSEMBLY.................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12
TEST MODE .................................................................................................................................................................... 13
ADJUSTMENT ................................................................................................................................................................. 14
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................20
VOLTAGE ........................................................................................................................................................................ 42
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 43
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 44
FUNCTION TABLE OF IC................................................................................................................................................ 48
FL DISPLAY......................................................................................................................................................................54
REPLACEMENT PARTS LIST/EXPLODED VIEW
CD-DP2500W
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
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
CD-DP2500W Mini Component System consisting of CD-
DP2500W (main unit), CP-DP2500 (front speakers),
GBOXS0038AWM1 (centre speaker) and GBOXS0039AWM1
(surround speakers).
CD-DP2500W/DK2500W
Manufactured under license from Dolby Laboratories Licens-
ing Corporation.
DOLBY, the double-D symbol and "PRO LOGIC" are
trademarks of Dolby Laboratories Licensing Corporation.
CD-DK2500W
CD-DK2500W Mini Component System consisting of CD-
DK2500W (main unit), CP-DP2500 (front speakers),
GBOXS0038AWM1 (centre speaker) and GBOXS0039AWM1
(surround speakers).
CD-DP2500W
CD-DK2500W
SECTION CD-DP2500W CD-DK2500W
KARAOKE Non Used
DIFFERENCE BETWEEN CD-DP2500W AND CD-DK2500W

CD-DP2500W/DK2500W
– 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
forthismodelisspecifiedtobelowerthanClassIRequirements.
However, the following precautions must be observed during
servicing to protect your eyes against exposure to the Laser
beam
(1) When the cabinet has been removed, the power is turned
on without a compact disc, and the Pickup is on a position
outerthanthelead-inposition,theLaserwilllightforseveral
seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and
replacementservicepartshavealreadybeenadjustedprior
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-Useofcontrolsoradjustments,orperformance
of procedures other than those specified herein may result
in hazardous radiation exposure.
CAUTION
●This Mini Component System is classified as a CLASS 1
LASER product.
●The CLASS 1 LASER PRODUCT label is located on the
rear cover.
●Use of controls, adjustments or performance of proce-
duresother than thosespecified herein mayresult in haz-
ardous radiation exposure.
As the laser beam used in this compact disc player is
harmful to the eyes, do not attempt to disassemble the
cabinet. Refer servicing to qualified personnel only.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Illustration:CD-DP2500W
VOLTAGE SELECTION
Thevoltage selector is locatedon the AC voltageselector box. If adjustmentis necessary, ensure toremove plug of ACcord from
ACsocketanduseascrewdriverinordertoturntheselectorineitherdirection.Thecorrectvoltagefigureisdisplayedinthewindow
below to the adjustment screw.
Figure 2 POWER SUPPLY CORD
QACCB0006AW00
QPLGA0003AWZZ QPLGA0004AWZZ
QACCE0010AW00
QACCA0003AW00
QACCJ0007AW00

– 3 –
CD-DP2500W/DK2500W
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
Specifications for this model are subject to change without
prior notice.
SPECIFICATIONS
●General
Power source: AC 110/127/220/230-240 V, 50/60 Hz
Power consumption: 155 W
Dimensions: Width; 270 mm (10-5/8")
Height; 330 mm (13")
Depth; 332 mm (13-1/16")
Weight: 8.9 kg (19.6 lbs.)
●Amplifier section
Output power: Front speakers;
MPO; 200 W (100W + 100 W)
(10 % T.H.D.)
RMS; 120 W (60 W + 60 W)
(10 % T.H.D.)
RMS; 96 W (48 W + 48 W)
(0.9 % T.H.D.)
Centre speaker;
MPO; 50 W (10 % T.H.D.)
RMS; 30 W (10 % T.H.D.)
RMS; 24 W (0.9 % T.H.D.)
Surround speakers;
MPO; 50 W (25 W + 25 W)
(10 % T.H.D.)
RMS; 30 W (15 W + 15 W)
(10 % T.H.D.)
RMS; 24 W (12 W + 12 W)
(0.9 % T.H.D.)
Output terminals: Front speakers; 6 ohms
Centre speaker; 6 ohms
Surround speakers; 12 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)
Input terminals: Video/Auxiliary (audio signal) ×2;
(CD-DP2500W) 500 mV/47 kohms
Input terminals: Video/Auxiliary (audio signal) ×2;
(CD-DK2500W) 500 mV/47 kohms
Microphone 1/2; 1 mv/600 kohms
●Compact disc player section
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 section
Frequency range: FM; 88-108 MHz
AM; 531-1,602 kHz
●Cassette deck section
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)
●Front speaker section
Type: 3-way type [13 cm (5-1/4") woofer,
5 cm (2") tweeter and super tweeter]
Maximum input
power: 120 W
Rated input power: 60 W
Impedance: 6 ohms
Dimensions: Width; 240 mm (9-1/2")
Height; 330 mm (13")
Depth; 255 mm (10-1/16")
Weight: 3.9 kg (8.5 lbs.)/each
●Centre speaker section
Type: 10 cm (4") full-range speaker
Maximum input
power: 60 W
Rated input power: 30 W
Impedance: 6 ohms
Dimensions: Width; 260 mm (10-1/4")
Height; 140 mm (5-1/2")
Depth; 155 mm (6-1/8")
Weight: 0.9 kg (2.0 lbs.)
●Surround speaker section
Type: 10 cm (4") full-range speaker
Maximum input
power: 30 W
Rated input power: 15 W
Impedance: 12 ohms
Dimensions: Width; 200 mm (7-7/8")
Height; 93 mm (3-11/16")
Depth; 170 mm (6-3/4")
Weight: 0.5 kg (1.1 lbs.)/each

CD-DP2500W/DK2500W
– 4 –
NAMES OF PARTS
Front panel [CD-DP2500W]
1. (CD) Disc Tray
2. Extra Bass Indicator
3. Spectrum Analyzer/Volume Level Indicator
4. (CD) Disc Number Indicators
5. (CD/TUNER) Memory Indicator
6. (CD) Pause Indicator
7. (TAPE 2) Record Indicator
8. (CD) Play Indicator
9. (CD) Music Schedule Indicators
0. (CD) More Tracks Indicator
11. Sleep Indicator
12. FM Stereo Mode Indicator
13. (TAPE) Reverse Mode Indicator
14. (TAPE 2) Reverse Play Indicator
15. (TAPE 1) Play Indicator
(TAPE 2) Forward Play Indicator
16. (CD) Repeat Indicator
17. FM Stereo Indicator
18. Timer Record Indicator
19. Timer Play Indicator
20. Memory/Set Button
21. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
22. Bypass Button
23. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
24. Normal Button
25. Phantom Button
26. Timer Set Indicator
27. On/Stand-by Button
28. Clock Button
29. Timer/Sleep Button
30. Function Selector Buttons
31. Dimmer Button
32. Volume Control
33. Equalizer Mode Selector Button
34. (CD) Disc Number Select Buttons
35. Headphone Socket
36. Tuning and Time Up/Down Buttons
37. (TAPE 2) Record Pause Button
38. (TAPE 2) Reverse Play Button
39. (CD/TAPE) Stop Button
40. (TAPE 2) Reverse Mode Button
41. (CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
42. Extra Bass/Demo Mode Button
43. (CD) Disc Skip Button
44. (CD) Open/Close Button
45. (TAPE 1) Cassette Compartment
46. (TAPE 2) Cassette Compartment

– 5 –
CD-DP2500W/DK2500W
Front panel [CD-DK2500W]
1. (CD) Disc Tray
2. Extra Bass Indicator
3. Spectrum Analyzer/Volume Level Indicator
4. (CD) Disc Number Indicators
5. Karaoke Maker Indicator
6. (CD/TUNER) Memory Indicator
7. (CD) Pause Indicator
8. (TAPE 2) Record Indicator
9. (CD) Play Indicator
(CD) Music Schedule Indicators
(CD) More Tracks Indicator
12. Sleep Indicator
13. FM Stereo Mode Indicator
14. (TAPE) Reverse Mode Indicator
15. (TAPE 2) Reverse Play Indicator
16. (TAPE 1) Play Indicator
(TAPE 2) Forward Play Indicator
17. (CD) Repeat Indicator
18. FM Stereo Indicator
19. Timer Record Indicator
20. Timer Play Indicator
21. Memory/Set Button
22. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
23. Bypass Button
24. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
25. Normal Button
26. Phantom Button
27. Timer Set Indicator
28. On/Stand-by Button
29. Clock Button
30. Timer/Sleep Button
31. Function Selector Buttons
32. Dimmer Button
33. Volume Control
34. Equalizer Mode Selector Button
35. (CD) Disc Number Select Buttons
36. Headphone Socket
37. Tuning and Time Up/Down Buttons
38. (CD) Disc Skip Button
39. (CD) Open/Close Button
40. (TAPE 2) Record Pause Button
41. (TAPE 2) Reverse Play Button
42. (CD/TAPE) Stop Button
43. (TAPE 2) Reverse Mode Button
44. (CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
45. Extra Bass/Demo Mode Button
46. Microphone Sockets
47. Microphone Level Controls
48. (TAPE 1) Cassette Compartment
49. (TAPE 2) Cassette Compartment

CD-DP2500W/DK2500W
– 6 –
Rear panel
1. AC Voltage Selector
2. AC Power Lead
3. CD Digital Output Socket
4. FM 75 Ohms Aerial Terminal
5. FM Aerial Earth Terminal
6. AM Loop Aerial Input Socket
7. Span Selector Switch
8. Video/Auxiliary (Audio Signal) Input Sockets
9. Front Speaker Terminals
10. Centre Speaker Terminals
11. Surround Speaker Terminals
Front speaker
1. Super Tweeter
2. Tweeter
3. Woofer
4. Bass Reflex Ducts
5. Speaker Wire
Centre speaker
1. Full-Range Speaker
2. Speaker Wire
Surround speaker
1. Full-Range Speaker
2. Speaker Wire

– 7 –
CD-DP2500W/DK2500W
Remote control [CD-DP2500W]
1. Remote Control Transmitter LED
2. Dolby Pro Logic Surround Mode Button
3. Test Tone Button
4. Centre Level Buttons
5. Surround Level Buttons
6. Balance Control Buttons
7. (CD) Disc Skip Button
8. (CD) Clear Button
9. (CD) Memory Button
10. (CD) Random Button
11. (TAPE 2) Record Pause Button
12. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
13. (CD) Pause Button
14. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
15. Equalizer Mode Selector Button
16. (TAPE 2) Reverse Play Button
17. (CD/TAPE) Stop Button
18. (CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
19. Function Selector Buttons
20. On/Stand-by Button
21. Extra Bass Button
22. Volume Up/Down Buttons
Remote control [CD-DK2500W]
1. Remote Control Transmitter LED
2. Karaoke Mode Button
3. Vocal Replacer Button
4. Dolby Pro Logic Surround Mode Button
5. Test Tone Button
6. Echo Level Up/Down Buttons
7. Centre Level Buttons
8. Surround Level Buttons
9. Balance Control Buttons
10. (CD) Disc Skip Button
11. (CD) Clear Button
12. (CD) Memory Button
13. (CD) Random Button
14. (TAPE 2) Record Pause Button
15. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
16. (CD) Pause Button
17. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
18. Equalizer Mode Selector Button
19. (TAPE 2) Reverse Play Button
20. (CD/TAPE) Stop Button
21. (CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
22. Function Selector Buttons
23. On/Stand-by Button
24. Extra Bass Button
25. Volume Up/Down Buttons

CD-DP2500W/DK2500W
– 8 –
OPERATION MANUAL
Illustration:CD-DP2500W
Illustration:CD-DP2500W
SETTING THE CLOCK
In this example, the clock is set for the 24-hour (0:00) system. 1
Pressthe ON/STAND-BYbuttonto enterthestand-by mode.
2
Press the CLOCK button.
3
Within 5 seconds, press the MEMORY/SET button.
4
Press the TUNING/TIME ( or ) button to select the time
display mode. “0:00” →The 24-hour display will appear.
(0:00 - 23:59)
“AM 0:00” →The 12-hour display will appear.
(AM 0:00 - PM 11:59)
“AM 12:00” →The 12-hour display will appear.
(AM 12:00 - PM 11:59)
●Note that this can only be set when the unit is first in-
stalled or it has been reset.
5
Press the MEMORY/SET button.
6
Pressthe TUNING/TIME ( or ) buttonto adjust the hour.
●Press the TUNING/TIME ( or ) button once to ad-
vance the time by 1 hour. Hold it down to advance con- tinuously.
●When the 12-hour display is selected, “AM” will change
automatically to “PM”.
7
Press the MEMORY/SET button.
8
Press the TUNING/TIME ( or ) button to adjust the min-
utes. ●Press the TUNING/TIME ( or ) button once to ad-
vance the time by 1 minute. Hold it down to change the time in 5 minute intervals.
●Thehour setting will notadvance even ifminutesadvance
from “59” to “00”.
9
Press the MEMORY/SET button.
●The clock starts operating from “0” second.
(Seconds are not displayed.) And then the clock display will disappear after a few sec-
onds.
To see the time display: Press the CLOCK button. ●The time display will appear for about 5 seconds. Note: ●The clock display will flash on and off at the push of the
CLOCK button when the AC power supply is restored after a power failure occurs or after theAC power lead is discon- nected.
If this happens, follow the procedure below to change the
clock time.
To change the clock time: 1 Press the CLOCK button.
2 Within 5 seconds, press the MEMORY/SET button. 3 Perform steps 6 - 9 above.
To change the time display mode: 1 Perform steps 1 - 2 in the section “RESETTING THE MI-
CROCOMPUTER”.
2 Perform steps 1 - 9 above.
(Main unit operation)
RESETTING THE MICROCOMPUTER
Reset the microcomputer under the following con- ditions: ●To erase all of the stored memory contents (clock and timer
settings, and tuner and CD presets).
●If the display is not correct. ●If the operation is not correct.
1
Pressthe ON/STAND-BYbuttonto enterthestand-by mode.
2
Whilstpressing down the 0button andtheX-BASS/ DEMO
button, hold down the ON/STAND-BY button for at least 1 second.
●“CLEAR AL” will appear.
Caution: ●The operation explained above will erase all data stored in
memory including clock and timer settings, and tuner and CD presets.

– 9 –
CD-DP2500W/DK2500W
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.Takeoffnylonbandsorwireholderswheretheyneedbe
removed when disassembling the unit. After servicing
theunit,besuretorearrangethe leads where they were
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 9-2
CD-DP2500H/DK2500W
1 Top Cabinet 1. Screw ..................... (A1) x4 9-1
2 Side Panel 1. Screw ..................... (B1) x8 9-1
(Left/right)
3 CD Player Unit/ 1. Turn on the power supply, 9-2
CD Tray Cover open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Screw ..................... (C1) x1
3. Hook....................... (C2) x3
4. Hook....................... (C3) x2
5. Socket .................... (C4) x3
4 Rear Panel 1. Screw ..................... (D1) x9 9-2
5 Main PWB 1. Screw ..................... (E1) x3 9-2
2. Socket .................... (E2) x2 10-3
(CD-DP25000W)
2. Socket .................... (E2) x3
(CD-DK25000W)
3. Flat Cable .............. (E3) x1
4. Lug Wire................. (E4) x1
5. Socket .................... (E5) x1
6 Power Supply PWB 1. Screw ..................... (F1) x2 10-3
2. Socket .................... (F2) x5
3. Flat Wire................. (F3) x1 10-4
7 Front Panel 1. Screw ..................... (G1) x2 10-3
8 Karaoke PWB 1. Screw ..................... (H1) x2 10-4
(CD-DK25000W
ONLY)
9 Display PWB/ 1. Screw ..................... (J1) x15 10-4
Headphones PWB 2. Flat Cable .............. (J2) x1
10 Tape Mechanism 1. Open the cassette holder 10-4
2. Screw ..................... (K1) x5
11 Turntable 1. Hook....................... (L1) x2 10-5
2. Cover ..................... (L2) x1
12 Disc Tray 1. Turn fully the lock lever in the 10-1
arrow direction.
2. While holding the lock lever,rotate 10-2
the cam gear until the cam gear
rib engages with the clamp lever.
3. Push the slide holder backward to 10-6
engage the claw with the groove
and remove it in the direction
of the arrow. .............. (M1) x6
13 CD Servo PWB 1. Screw ..................... (N1) x1 11-1
(Note 2) 2. Hook....................... (N2) x2
3. Socket .................... (N3) x4
14 CD Mechanism 1. Hook....................... (P1) x2 11-2
2. Hook....................... (P2) x3
15 Loading Motor PWB 1. Hook....................... (Q1) x5 11-2
STEP REMOVAL PROCEDURE FIGURE
Figure 9-1
Note 1:
How to open the changer manually. (Fig. 10-1)
1. In this state, turn fully the lock lever in the arrow direction
through the hole on the loading chassis bottom.
2.
While holding the lock lever, rotate the cam gear anticlockwise
until the cam gear rib engages with the clamp lever.
(Fig. 10-2)
3. After that, push forward the CD slide holder.
Note 2:
1.After removingtheconnector fortheoptical pickupfromthe
connector, wrap the conductive aluminium foil around the
frontendoftheconnectorsoastoprotecttheopticalpickup
from electrostatic damage.
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2.When fining back the cam gearassembly,letitlock by front
movement.
(B1)x4
ø3x10mm (B1)x2
ø3x10mm
Rear
Panel
(B1)x2
ø3x10mm
Side Panel
(Right)
Side Panel
(Left)
(A1)x2
ø3x12mm
(A1)x2
ø3x12mm Top Cabinet
(E1)x3
ø3x10mm
(C3)x1
(D1)x2
ø3x10mm
(C1)x1
ø3x10mm
(D1)x7
ø3x10mm
CD Player
Unit
DC Tray Cover
Rear
Panel
Pull
(C3) x1
(C4)x3
(C2) x3
1
1
2
Main PWB
CD Servo
PWB
CD-DP2500H/DK2500W

CD-DP2500W/DK2500W
– 10 –
Figure 10-6
Turntable
Disc Tray
(L2) x1
CD Player Unit
(L1) x2
1
3
2
(M1) x3
(M1) x3
Figure 10-2
Figure 10-3
Figure 10-4
CLAMP LEVER
CAM GEAR RIB
Figure 10-1
LOCK LEVER
Figure 10-5
(F1)x1
ø3x6mm
(G1)x2
ø3x10mm
(F1)x1
ø3x10mm
(F2)x4
(F2)x1
(E3)x1
(E4)x1
(E2)x1
(E2)x1
CD-DK2500W
ONLY
Main PWB
Power
Supply
PWB
(E2)x1
Power
Supply
PWB
(E5)x1
Tape
Mechanism
CD-DK2500W
ONLY
(J1)x14
ø3x10mm
(H1)x1
ø3x10mm
(J2)x1
(K1)x5
ø3x10mm
(J1)x1
ø3x10mm
(F3)x1
Display PWB
Karaoke
PWB
Headphones
PWB
Open
Cassette
Holder
Tape
Mechanism

– 11 –
CD-DP2500W/DK2500W
CP-DP2500
1 Front Panel 1. Front Panel ............ (A1) x1 11-3
2 Woofer 1. Screw ..................... (B1) x4 11-3
4 Tweeter 1. Screw .................... (C1) x2 11-3
5 Super Tweeter 1. Screw .................... (D1) x2 11-3
STEP REMOVAL PROCEDURE FIGURE
CP-DP2500
Figure 11-3
(P2) x3
(P1) x1
(Q1) x5
(P1) x1
Loading
Motor
PWB
CD
Mechanism
Screw Driver
Woofer
(A1)x1
(B1)x4
Ø4x12mm
(C1)x2
Ø3x10mm
(D1)x2
Ø3x10mm
Figure 11-1
Figure 11-2
(N3) x2
(N2) x2
(N3) x2
CD Servo
PWB CD Player
Base
(N1)x1
ø3x8mm

CD-DP2500W/DK2500W
– 12 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
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. 12-1)
1. When you remove the screw (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removesd.
How to remove the playback head (TAPE 1)
(See Fig. 12-2)
1. When you remove the screw (B1) x 2 pcs., the playback
head.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 12-3)
1.Carefullypushtheinsideclawtoremoveit.Thepinchroller
pawlinthedirectionofthearrow<A>,andremovethepinch
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 1) (See Fig. 12-4)
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 2) (See Fig. 12-4)
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. 12-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 12-1
Figure 12-2
Figure 12-3
Figure 12-4Figure 12-5
TAPE2 TAPE1
Main Belt
(D1)x1
TAPE2
Main Belt
(E1)x1
TAPE1
Main Belt
FF/REW
Belt
(E2)x1
FF/REW
Belt
(D2)x1
Motor
Motor
(B1)x2
Ø2 x 9mm
TAPE 1
Playback
Head
Pinch Roller
(C1)x1
Pinch Roller
Pawl
<A>
<B>
(A1)x2
Ø2 x 5mm
TAPE 2
Record/Playback
Head
Erase Head
(F1) x2
Ø 2.6 x 5mm
Motor

– 13 –
CD-DP2500W/DK2500W
How to remove the pickup (See Fig. 13-2)
1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2).
2.Remove the screws (B3) x 2 pcs.,to remove the shaft (B4).
3. Remove the pickup.
CD MECHANISM SECTION
Performsteps1,2,3,and11to14of thedisassembly method
to remove the CD mechanism.
How to remove the loading motor
(See Fig. 13-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
Figure 13-1
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.
(A1)x2
(A1)x1
Loading Motor
CD Base
(A1)x2
(B1) x2
ø2.6 x6mm
Shaft
(B2) x1
Stop Washer
(B3) x1
Gear
(B4) x1
CD Mechanism
Pickup
Figure 13-2
TEST MODE
KEY TEST MODE CONTENTS
[ON/STAND-BY] [TUNER] + [X-BASS] TEST 1 TUNER PRESET MEMORY CLEAR
[ON/STAND-BY] [MEMORY/SET] + [X-BASS] TEST 2 TUNER PRESET FOR PRODUCTION
[ON/STAND-BY] [>>] + [X-BASS] TEST 3 KEY AND DISPLAY TEST
[ON/STAND-BY] [CD] + [X-BASS] TEST 4 CD TEST MODE
[ON/STAND-BY] [TAPE] + [X-BASS] TEST 5 TAPE TEST MODE
[ON/STAND-BY] [>] + [X-BASS] TEST 6 ALL CLEAR(RESET)
[ON/STAND-BY] [TUN UP] + [X-BASS] TEST 7 AUDIO TEST
[ON/STAND-BY] [TUN DOWN] + [X-BASS] TEST 8 PRODUCTION INITIALIZE FOR CHANGER
During POWER OFF mode,push below each 2 keys [ON/STAND-BY] key.
Then go to each TEST MODE.

CD-DP2500W/DK2500W
– 14 –
CD SECTION
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna,SO301 Output: TP302
*2. Input: Antenna,SO301 Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-renge 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
Figure 14-2 ADJUSTMENT POINT
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
Figure 14-3
CD ERROR CODE DESCRIPTION
Error State Code
[Servo System Error]
0001 Cannot detect Pickup-in SW
0002 DSP access error
[Error during close operation]
0101 Open/Close SW not functioning (Low →High)
0103 Open/Close SW not functioning (High →Low)
[Error during open operation]
0201 Open/Close SW not functioning (Low →High)
0203 Open/Close SW not functioning (High →Low)
[Error during skip operation]
0302 Pickup-in SW is not detected
0306 During Disc 1 search, Open/Close SW or Clamp SW
or Disc SW do not change to low.
0307 Clamp SW not function (Low →High)
0308 Clamp SW not function (High →Low)
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacingthepickup.Therefore,differentPWBsandpickups
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.)
* Focus offset adjustment
* Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing 14-3
EFBL)
(3)Gainadjustment(Thegainiscompensated insidethe IC
sothattheloopgain at the gain crossover frequency will
be 0dB.)
* Focus gain adjustment
* Tracking gain adjustment
•Adjustment
T
T
EFBL
FDO
TE
Stopped
CH1=500mV
DC 10:1 CH2=200mV DC 10:1 CH3=1V DC 10:1 500ms/div
(500ms/div)
NORM:20kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000V
CH2 : 0.000V Main : 100K Zoom : 2k Mode : SINGLE Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger==Filter= =Offset=
CH2
v/DIV
200mV
1999/04/05 20:26:47
T303
T351
CF352
CF351
CF302
IC303
T306
T302
IC302
IC301
CNP301
SO301
AM LOOP
ANTENNA
T301
MAIN PWB
AM Tracking
AM Band Coverage
AM IF
L312
FM75 ohms
GND
C393
TP301
C375
R357
TP302
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 ±Speaker
speed Resistor in 30 Hz terminal
motor. (Load
(MM1) resistance:
6 ohms)
•Tape Speed
Figure 14-1
TAPE MECHANISM
Motor
Variable Resistor in motor

– 15 –
CD-DP2500W/DK2500W
SP out L-ch Input signal is output.
(SO901) R-ch Input signal is output.
(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Almost no output (only omitting component)
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch Input signal is output.
(SO901) SP out S-ch Almost no output (only omitting component)
State of set Dolby Pro Logic Dolby Pro Logic On mode
Output point Bypass mode Normal mode Phantom mode
IC501 1 pin L-out Output enabled state Output enabled state Output enabled state
2 pin R-out Output enabled state Output enabled state Output enabled state
IC501 3pin C-out No output Output enabled state No output
IC501 9pin S-out No output Output enabled state Output enabled state
SP OUT L-ch Output enabled state Output enabled state Output enabled state
(SO901) R-ch Output enabled state Output enabled state Output enabled state
SP OUT C-ch No output in MUTE (Q501) state Output enabled state No output in MUTE (Q501) state
(SO901)
SP OUT S-ch No output in MUTE (Q502) state Output enabled state Output enabled state
(SO901)
EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD
Test tone output
• Pro Logic ON Normal mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only C-ch
↑ ↓
Output of only S-ch ←Output of only R-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST →L-ch →C-ch
↑ ↓
S-ch ← R-ch
• Pro Logic ON Phantom mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only R-ch
↑ ↓
←Output of only S-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST → L-ch → R-ch
↑↓
←S-ch←
Outline
• Namely, two speakers are connected in parallel to one
amplifier.
•IntheProLogicBYPASSmodetheamplifierforC-ch(center
channel)andtheamplifierforS-ch(surroundchannel)arein
MUTE state. The SP output is cut.
• In the normal mode of Pro Logic ON mode the amplifiers for
C-ch and S-ch are in operative state, so that the SP output
appears.
•In the Phantommodeof Pro LogicONmodethe amplifier for
C-ch is in MUTE state, so that the SP output is cut. The
amplifierfor S-ch (surround) is inoperative state, so that the
SP output appears
•State of element output and terminal output in specific mode
Relation between VIDEO IN input and output in Pro Logic
ON state
(1) L-ch/R-ch same phase input into VIDEO IN input jack in
VIDEO Function mode
Output point Normal mode
Output point Phantom mode
(2) L-ch/R-ch reverse phase input into VIDEO IN input jack in
VIDEO Function mode
(Reverse phase: Phase difference between L and R is 180°)
Output point Normal mode
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch Almost no output (only omitting component)
(SO901) SP out S-ch Input signal is output.
Output point Phantom mode
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Input signal is output.
•Accordingly,ifyouwanttooutputsignalwaveformtoC-chSP
out, give the same phase input into L-ch/R-ch INPUT in the
Pro Logic Normal mode.
Ifoneofchannelsreceivesinput,C-chdoesnotoutput. Only
L-ch or R-ch outputs.
•IfyouwanttooutputsignalwaveformtoS-chSPout,youcan
use either Normal mode or Phantom mode. However, 180°
reverse phase input must be given to L-ch/R-ch INPUT.

CD-DP2500W/DK2500W
– 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 “ ” ( ) 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 micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolyticcapacitor,theexpression“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 POSITION
SW713 TUNING ON—OFF
SW714 DIMMER ON—OFF
SW715 X-BASS ON—OFF
SW716 EQUAL ON—OFF
SW717 NORMAL ON—OFF
SW718 PHANTOM ON—OFF
SW719 BY-PASS ON—OFF
SW720 ON/STAND-BY ON—OFF
SW721 CLOCK ON—OFF
SW722 TIMER ON—OFF
SW728 DISC 1 ON—OFF
SW729 DISC 2 ON—OFF
SW730 DISC 3 ON—OFF
SW731 DISC SKIP ON—OFF
SW732 OPEN/CLOSE ON—OFF
REF. NO DESCRIPTION
SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 CD ON—OFF
SW702 TAPE ON—OFF
SW703 TUNING DOWN ON—OFF
SW704 MEMORY/SET ON—OFF
SW705 REV ON—OFF
SW706 FF ON—OFF
SW707 PLAY ON—OFF
SW708 STOP ON—OFF
SW710 REC ON—OFF
SW711 TUNING UP ON—OFF
SW712 VIDEO ON—OFF
Figure 20 TYPES OF TRANSISTOR AND LED
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
KTA1266 GR
KRC102 M
KRC104 M
KTA1271 Y
KTA1274 Y
KTA1273 Y
KTC3203 Y
KTC3199 GR
KTC107 M
2SC3203 Y
KTC3194 Y
KTD2026 Y 4204SRT7
4204UYT7
BCE
FRONT
VIEW
FRONT
VIEW

– 17 –
CD-DP2500W/DK2500W
Figure 21 BLOCK DIAGRAM (1/3)
CNP12
CNP11 CNP5 CNS99
Q2
+3.3V
+5V
CONT5
CONT2 CONT3 CONT4 CONT7 CONT6
SLD0
SPD0
FD0
TD0
+5V
TO DISPLAY SECTION
CLAMP SW CDINT
WRQ
CE DO
CLK
DI CD RES GND DRF
CNS4 BI4
CNP4
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
TRACKING COIL
FOCUS COIL
PICKUP UNIT
TE FE RFEV HFL VVDD ADAVDD VDD LVDD RVDD XVDD
VDD5V
RFEV
FE-
FE
TE-
TE
HFL
+3.3V
Q1
LDD PD
TIN2 TIN1 FIN2 FIN1
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLIDE DRIVER
IC1
LA9235M
SERVO AMP.
TO MAIN SECTION
(TO IC601)
CD DIGITAL OUT
IC99
R-CH
L-CH AGND DGND +B6(+5V)
RCHO
RVSS
LVSS
LCHO
IC2
LC78641E
SERVO/SIGNAL
CONTROL
-
+
M
SW1
OPEN/
CLOSE
XL1
16.9344MHz
6
5
43
3
25
4
1
3
21
3
21
1234 78
217
89
10
12 4
35
SW2
CLAMP SW3 DISC
NUMBER
M3
T/T
UP/DOWN
MOTOR
6
12 4
356
12 4
356
75
DOUT
37 76 45 46 47 48 32 31 30
65
66
67
68
69
70
71
72
CE
CL
DI
DO
INT
WRQ
RES
DEF
52
51
XOUT
XIN
73 518 36 44 49 50 7 14 15 16
23
24
25
26
33
3
13
19
40
64
74
17 18 19 20 21 22
30
23
11
9
1
4567 15 16 26 27
2 1725 4142 3839
35
29
22
21
14
8
40
24
23
28
SW4
PICKUP IN
Q3
LASER
DRIVER
CONSTANT
VOLTAGE
+3.3V
+5V
VCC4
18 VCC1
VCC2
VCC3

CD-DP2500W/DK2500W
– 18 –
Figure 22 BLOCK DIAGRAM (2/3)
Q706 +B4
+B4
M
Q704
Q705
IC701
54PIN
IC701
53PIN
IC701
56PIN
IC701
55PIN
MM1
TAPE
MOTOR
SOLM1,SOLM2
SOLENOID
SWM2
T2 PLAY
SWM1
T1 PLAY
SWM4
R. PLAY
SWM3
F. PLAY
MOTOR
DRIVER
FM ANTENNA
FM 75Ω
GND
SO301
17
8
456KHz
X351
CF351
FM DET
459
21
16
21
1 2
24 23
15
20 1 22
13
14
15
12
7 9
11 3
94 5 6
10
GND VCCAM IF
FM IN
IC302
LC72131
PLL (TUNER)
IC301
FM FRONT END
OSC
AM IF
AM MIX
AM IN AM OSC IN
AM RF IN
X352
4.5MHz
T351
+B9
+B9
+B9
+B9
IC303
LA1832
FM/AM IF MPX.
L
R
STEREO
AM OSC IN
DO DI CL CE
1
24
2
23
3
4
4
21
6 7
17
8
9
16
10
14
12
13
18
H/N
T1/T2
R-CH
L-CH
L-CH
R-CH
P.B
REC
TAPE 2
TAPE 1
TAPE MECHANISM Ass'y
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
L
R REC
P.B.
REC
ALC
NOR/
HIGH T1/T2
REF L NF
R NF
PB HEAD
REC/PB HEAD
SWITCHING
Q103~Q106
AC BIAS
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
SWITCHING BAIS
Q126
Q124
Q128
L104
Q111
Q110
Q109
Q107
Q108
Q403
Q404
SWITCHING SWITCHING
SWITCHING
+B5
1
2
3
CNS401
FROM CD SECTION
CNP11
CD-DK2500W ONLY
17 +B5
+B9
+B5
+B5
+B5
+B5
VOLTAGE
REGURATER
9
1
3
8
6125137
10
14
2
9
4
11
22
23
35
36
31
32
41
40
42
12
13
7
9
4
8
16
10
15
11
14
12
13 8
17 18 7
1
2
75 24
74
34
21 69 25
38
3
IC401
LC75341
AUDIO PROCESSOR
IC201
BU4066BC
SWITCHING
ICK1
M65856P
KARAOKE
L
R
L
R
L
R
L
R
L
R
L
L
R
R
TUNER
L
R
VIDEO
TAPE
CD
BAIS
T1/T2
REC
+B5
21
4
9
Q501
Q502
Z
D
FM IF IN
FM IF
FM OSCFM RF
AM ANT. AM OSC
FM IF
T302
7 FM
Q360
QK2,3
QK1
Q302
FM +B
VOLTAGE
REGULATOR
CF303
FM+B
MO/ST
FM/AM
BIAS
OCS
15 19
2417812
23
MONO/ST
JK201
VIDEO IN
MIC1 IN
MIC2 IN
VCC
CLOCK
LATCH
LIN
RIN
ROUT
LOUT
DATA
CF352
TA
P
MECH
A
IC501
M62464AFP
DOLBY PRO LOGIC
DECORD
CL DI CE
1
2
AM LOOP
ANTENNA
JK1
MIC 1
JK 2
MIC 2
VRK 2
MIC 2
LEVEL
CNP301
BF301
L312
FM B.P.F.
123456789
T301
OSC BUFFER
T303 T306
VRK 1
MIC 1
LEVEL

– 19 –
CD-DP2500W/DK2500W
Figure 23 BLOCK DIAGRAM (3/3)
Q709
IC804
IC801
IC802
KIA7810AP
KIA7805AP
AN78L05
IC601
IC602
IC603
KIA4558P
OPE AMP.
IC702
BU2092F
VOLUME
VR701
Front
Speaker
Center
Speaker
L-ch
R-ch
L-ch
R-ch Rear
Speaker
SO901
Speaker Terminal
IC703
BU2092F
~
1 2 3 6
14 53
33 27 32 545556
FL701
DISPLAY
9 8 7
24 2322 21
18
17
1
IC701
IX0334AW
SYSTEM MICROCOMPUTER
VDD
LATCH
MIC IN +B7
MEMORY
BACK UP
VDD
XL701
KEY
SW701~SW713
SW714~SW722
SW728~SW733
+B3
+B7
M
Q910
+B6
TO CD
SECTION
M901
FAN MOTOR
JK601
HEADPHONES
T.F
PT801
POWER
TRONSFORMER
(MAIN)
RL801
AC POWER
SUPPLY CORD
AC 110/127/220/230-240V,
50/60Hz
PT802
POWER
TRONSFORMER
Q803
+B8
BAIS
VF1
VF2
VROAD
T1/T2
REC
5
D801
D802
D803
~D806
Q804 D807
~D809
D818
2 3
1
4
8
+B7
+B4
–B1
RX701
Q701
Q702
Q703
Q710
Q711
Q712
98
7
10
7
10
L-OUT
IC901
STK40271
POWER AMP.
IC902
STK40203
POWER AMP.
–B1
+B3
+B1
L
LL
R
RR
9
13
8
–B2 +B2
R-OUT
Q401
Q402
Q503
Q504
Q
501
Q
502
ZD801
+B5
–B3(–15V)
+B4(M+10V)
+B6
+B2
(A+10V)
(CD+5V)
(UNSW+5V)
(SW+5V)
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
AVDD
SMUTE
~~ ~
1
15
1
15
13
4
101112132154117181920
30 25
27
31
32
33
34
36
39
40
46
56
55
54
53
51
50
91
16
86
57
58
80
100 92 7938
37
5554
535247
VDD
D814~D817
FRONT
F801
T5A L 250V
F802
T5A L 250V
F803
T4A L 250V
F804
T4A L 250V
F805
T2A L 250V
1516 24 2625
+B7
+B7
+B7 LED711~LED717
18
12
17
+B7
LED701~LED710
LED718
IC704
KIA7042P
RESET
TAPE
MECHANISM
+B7
RL902
RL901
230-240V
220V
127V
110V
~
~
78 85 REQ 660
~~
4
Q823
SW801
VOLTAGE
SELECTOR

CD-DP2500W/DK2500W
– 20 –
Figure 20 SCHEMATIC DIAGRAM (1/13)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
42
41
40
39
38
37
36
LOADING M-
VCC4
LD_M+
LD_M-
LOADING M+
35
34
33
32
31
30
29
28
27
26
25
24
23
22
SPDO
VCC3
VCC2(SPN)
SP-
SP+
SPO
GND
+B
TDO
NC
TEST
HFL
TE
TE-
FE
FE-
RFEV
BH
PH
RF
RF-
RFSW
VCC
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
REF
ODRV
AGCON
ODRV
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
AGCON
ODRV
APC
LPF
DH
PH
LPF
LPF
PH/BH
LDON
EFBL
FIN1
FIN2
REF1
TIN2
TIN1
AGON
LDD
TEST0
GND
VREF
TES1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FIN2
FIN1
TIN2
TIN1
+B
+B
2
5
3
1
7
6
44
3
2
1
7
6
5
CD SERVO PWB-C
5
1
3
7
6
4
2
4
3
2
1
7
6
5
Vcc
C
Vref
F
B
E
A
LD
VR
PD
GND
FO-
FO+
TR+
TR-
5
2
1
2
3
4
5
6
7
8
8
3
6
7
1
4
TR-
TR+
FO+
FO-
GND
PD
VR
LD
ACTUATOR
FO+
FO-
TR-
TR+
1
2
3
4
5
6
7
88
3
6
7
1
4
5
2
PICKUP UNIT(306)
GND(D)
PUIN
SP+
SP-
SL+
SL-
3
2
5
1
4
6
2
3
5
1
4
6
3
6
1
4
5
2
2
3
5
1
4
6
CD MOTOR PWB-D
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SLDO
FDO
TDO
MUTE
Vref
STANDBY
VCC1
SL-
SL+
GND
TR+
TR-
FO-
FO+
FO
FD
TO
+B
+B
+
+
+
+ +
+
+
+ +
-
-
-
-
-
-
-
-
-
-
- -
-
-
-
+
+
+B
+B
+B
+B
+
-
-
+
M
M
+
+ +
+
R54 68K
R53 68K
R52 68K
R51 68K
CNP1
R56
68K R55
68K
C6
100/10
C54
47/10 C55
0.01
C51
47/6.3
C53
0.001
R25
10K
C7
10/35
C8
0.022
R47
3.3
Q3
KTA1266 GR
LASER DRIVER
R50
47
C14
0.33
C13
0.01
R42
120K
R3
47K
R4
10K
C11
47/6.3
R6
27K
R7
6.8K
R5
39K
C12
0.022
C18
3P
(CH)
R8
330
R10
27K
C26
0.047
C22
100P
R80
1M
R7
9
1.5
M
C24
2.2/50
C21
0.1
C23
0.047 R12
680
R11
12K
C17
0.0047
R15
10K
C20
0.1
C42
68P
C25
0.022
C41
100/6.3
C28
47/10
C82
0.022
C47
100/6.3
C49
100/6.3
C50
100/6.3
C46
0.022
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
R48
6.8K
C52
0.01
CNP2
CNP3
CNS3A CNS3B
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN
IC1
LA9235M
SERVO AMP.
CNS1A CNS1B
CNS2A CNS2B
CNP3A
13
2
5
8
4