Sharp CD-PC3500 User manual

No. S2015CDPC3500
CONTENTS Page
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)....................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 7
QUICK GUIDE ................................................................................................................................................................... 8
DISASSEMBLY.................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12
ADJUSTMENT ................................................................................................................................................................. 13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................20
VOLTAGE ........................................................................................................................................................................ 40
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 41
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 42
FUNCTION TABLE OF IC................................................................................................................................................ 46
FL DISPLAY......................................................................................................................................................................52
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
CD-PC3500
• 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-PC3500 Mini Component System consisting of
PC3500 (main unit), CP-C3500 (front speakers),
GBOXS0036AWM1 (center speaker) and
GBOXS0037AWM1 (rear speakers).
CD-PC3500
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-PC3500
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinchedorthathardwareisnotlodgedbetweenthechassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet,terminalboard,adjustmentandcompartmentcovers
or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage
current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,
sensitivity to measure the AC voltage drop across the
resistor (See diagram).
* Connect the resistor connection to all exposed metal parts
havingareturnpathtothechassis(antenna,metalcabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
AllcheckmustberepeatedwiththeAClinecordplugconnection
reversed.
Anyreading of0.3 voltRMS (thiscorresponds to0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 µF
1.5k ohms
10W
VTVM
AC SCALE

– 3 –
CD-PC3500
●General
Power source: AC 120 V, 60 Hz
Power consumption: 150 W
Dimensions: Width; 10-5/8" (270 mm)
Height; 13" (330 mm)
Depth; 14" (355 mm)
Weight: 18.2 lbs. (8.3 kg)
●Amplifier section
Output power: Front speakers;
60 W minimum RMS into 6
ohms from 60 Hz to 20 kHz
with no more than 10 % total
harmonic distortion.
Center speaker;
RMS; 30 W (1 kHz, 10 %
T.H.D.)
Rear speakers;
RMS; 30 W (total) (1 kHz, 10
% T.H.D.)
Output terminals: Front speakers; 6 ohms
Center speaker; 6 ohms
Rear speakers; 12 ohms
Subwoofer; 47 k ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)
Input terminals: Video/Auxiliary (audio signal)
×2; 500 mV/47 k ohms
●Compact disc player section
Type: 3-disc multi-play compact
disc player
Signal readout: Non-contact, 3-beam semi-
conductor 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; 87.5-108 MHz
AM; 530-1,720 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 [5-1/4" (13 cm) woofer,
2" (5 cm) tweeter and super tweeter]
Maximum input power: 120 W
Rated input power: 60 W
Impedance: 6 ohms
Dimensions: Width; 9-1/2" (240 mm)
Height; 13" (330 mm)
Depth; 10-1/16" (255 mm)
Weight: 8.5 lbs. (3.9 kg)/each
●Center speaker section
Type: 4" (10 cm) full-range speaker
Maximum input power: 60 W
Rated input power: 30 W
Impedance: 6 ohms
Dimensions: Width; 10-1/4" (260 mm)
Height; 5-1/2" (140 mm)
Depth; 6-1/8" (155 mm)
Weight: 2.0 lbs. (0.9 kg)
●Rear speaker section
Type: 4" (10 cm) full-range speaker
Maximum input power: 30 W
Rated input power: 15 W
Impedance: 12 ohms
Dimensions: Width; 7-7/8" (200 mm)
Height; 3-11/16" (93 mm)
Depth; 6-3/4" (170 mm)
Weight: 1.1 lbs. (0.5 kg)/each
Specifications for this model are subject to change without
prior notice.
SPECIFICATIONS
CD-PC3500
CP-C3500
GBOXS0036AWM1
GBOXS0037AWM1

CD-PC3500
– 4 –
NAMES OF PARTS
CD-PC3500
1
67 8 9
2
4
1213 14 16 1718
33
15
10
4342
■Front panel
11. (CD) Disc Tray
12. Extra Bass Indicator
13. Spectrum Analyzer/Volume Level Indicator
14. (CD) Disc Number Indicators
15. (CD/TUNER) Memory Indicator
16. (TAPE 2) Record Indicator
17. (CD) Play Indicator
18. (CD) Music Schedule Indicators
19. (CD) More Tracks Indicator
10. Sleep Indicator
11. FM Stereo Mode Indicator
12. (CD) Random Play Indicator
13. (CD) Pause Indicator
14. (TAPE) Play Indicator
15. (CD) Repeat Indicator
16. FM Stereo Indicator
17. Timer Record Indicator
18. Timer Play Indicator
19. Memory/Set Button
20. (CD) Track Down/Review Button
3(TUNER) Preset Down Button
3(TAPE 2) Rewind Button
21. Bypass Button
22. (CD) Track Up/Cue Button
3(TUNER) Preset Up Button
3(TAPE 2) Fast Forward Button
23. Normal Button
24. Phantom Button
25. Timer Set Indicator
26. On/Stand-by Button
27. Clock Button
28. Timer/Sleep Button
29. Function Selector Buttons
30. Dimmer Button
31. Volume Control
32. Equalizer Mode Selector Button
33. (CD) Disc Number Select Buttons
34. Headphone Jack
35. Tuning/Time Up/Down Buttons
36. (TAPE 2) Record Pause Button
37. (CD/TAPE) Stop Button
38. (CD) Play/Repeat Button
3(TAPE) Play Button
39. Extra Bass/Demo Mode Button
40. (CD) Disc Skip Button
41. (CD) Open/Close Button
42. (TAPE 1) Cassette Compartment
43. (TAPE 2) Cassette Compartment
32
21
25
26
27
28
29
30
33
34 37 38 39 40 41
3536
19 20 22 23 24
31
51

– 5 –
CD-PC3500
■Rear panel
11. AC Power Cord
12. CD Digital Output Jack
13. FM/AM Loop Antenna Jack
14. Subwoofer Output Jack
15. Video/Auxiliary (Audio Signal) Input Jacks
16. Front Speaker Terminals
17. Center Speaker Terminals
18. Rear Speaker Terminals
■Front speaker
11. Super Tweeter
12. Tweeter
13. Woofer
14. Bass Reflex Ducts
15. Speaker Wire
■Center speaker
11. Full-Range Speaker
12. Speaker Wire
■Rear speaker
11. Full-Range Speaker
12. Speaker Wire
1
2
3
4
5
678
1
2
3
45
1
2
1
2
CP-C3500
GBOXS0036AWM1
GBOXS0037AWM1

CD-PC3500
– 6 –
■Remote control
11. Remote Control Transmitter LED
1
2
3
5
6
7
4
11
14
16
19
12 15
17
20
89
21
22
10
13
18
23
24
25
26
27
12. Surround Level Buttons
13. Center Level Buttons
14. Dolby Pro Logic Surround Mode Button
15. Test Tone Button
16. Balance Control Buttons
●Tuner control section
17. Preset Up/Down Buttons
●CD control section
18. Memory Button
19. Pause Button
10. Stop Button
11. Play/Repeat Button
12. Track Down/Review Button
13. Clear Button
14. Track Up/Cue Button
15. Random Button
16. Disc Skip Button
●Tape control section
17. (TAPE 1) Play Button
18. (TAPE 1/2) Stop Button
19. (TAPE 2) Play Button
20. (TAPE 2) Record Pause Button
21. (TAPE 2) Rewind Button
22. (TAPE 2) Fast Forward Button
23. Equalizer Mode Button
24. Function Selector Buttons
25. On/Stand-by Button
26. Extra Bass Button
27. Volume Up/Down Buttons

– 7 –
CD-PC3500
OPERATION MANUAL
X-BASS/ DEMO
POWER
ON/
STAND-BY
RESETTING THE MICROCOMPUTER
Reset the microcomputer under the following conditions: ●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
Press the ON/STAND-BY button to enter the stand-by mode.
2
While pressing down the button and the X-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.
SETTING THE CLOCK
POWER
ON/
STAND-BY
CLOCK
MEMORY/SET
TUNING/ TIME ( )
In this example, the clock is set for the 12-hour (AM 12:00) sys- tem.
1
Press the ON/STAND-BY button to enter the stand-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.
"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) "0:00" →The 24-hour display will appear. (0:00 - 23:59)
●Note that this can only be set when the unit is first installed
or it has been reset (see page 21).
5
Press the MEMORY/SET button.
6
Press the TUNING/TIME ( or ) button to adjust the hour.
●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 auto-
matically to "PM".
7
Press the MEMORY/SET button.
8
Press the TUNING/TIME ( or ) button to adjust the minutes.
●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 setting will not advance even if minutes advance 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 seconds.
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 the AC power cord is disconnected. 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 MICROCOMPUTER", on page 21.
②
Perform steps 1 - 9 above.
(Main unit operation)
AM 12:00 AM 0:00 0:00
2
3
4
7
6
5
8 9

CD-PC3500
– 8 –
MINI COMPONENT SYSTEM Quick Guide/Guía rápida
CD-PC3500
●Remote control x 1 ●
Controlador remoto x 1
●2 “AA” batteries ●
Dos pilas “AA”
Remote sensor
Sensor remoto
2
Preparation for use /
Preparación para su uso
1
Check the supplied accessories /
Compruebe los accesorios suministrados
●FM/AM loop antenna x 1 ●
Antena de cuadro de
FM/AM x 1
●Batteries are not included. ●
Las pilas no están incluidas.
8” - 20’ (0.2m - 6m)
0,2m - 6m
■Speaker connection ■
Conexión de los altavoces
■Antenna connection ■
Conexión de las antenas
Front speaker (Right) Altavoz
delantero
(Derecho)
Front speaker (Left)
Altavoz
delantero
(Izquierdo)
●AM loop antenna ●
Antena de cuadro
de AM
●FM antenna ●
Antena de FM
●AC 120 V, 60 Hz ●
120 V de CA, 60 Hz
White line LÍnea blanca
Red Rojo
■Switching between power-on and stand-by mode ■
Cambio entre la conexión de la alimentación y el
modo de reserva
■Remote control ■
Controlador remoto
15
15
Black Negro
Rear speaker (Right)
Altavoz
trasero
(Derecho)
Rear speaker (Left)
Altavoz
trasero
(Izquierdo)
Center speaker
Altavoz
central
3
Listening to a CD /
Audición de discos CD
4
Listening to a tape /
Audición de una cinta
5
Listening to the radio /
Audición de la radio
6
Recording from CDs /
Grabaciones de discos CD
7
Sound control /
Control del sonido
●Label facing up ●
Etiqueta hacia arriba
■To stop the playback ■
Para detener la reproducción
■To stop recording ■
Para detener la grabación
●Load the disc to be recorded. ●
Introduzca el disco
que va a grabar.
●CD recording starts. ●
La grabación de
CD empieza.
■Volume ■
Volumen
■Extra bass (X-BASS) ■
Graves extra (X-BASS)
■Pre-programmed equalizer ■
Ecualizador preprogramado
Printed in Malaysia Impreso en Malaysia
TINSZ0505AWZZ A9912.HK
FLAT ROCK POPS
JAZZCLASSIC
VOCAL
■To stop the playback ■
Para detener la reproducción
TAPE 1 TAPE 2
TAPE 2

– 9 –
CD-PC3500
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,besure to rearrangetheleads where theywere
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 9-2
Figure 9-3
CD-PC3500
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) x10 9-2
5 Main PWB 1. Screw ..................... (E1) x3 9-2
2. Socket .................... (E2) x2 10-2
3. Flat Cable............... (E3) x1
6 Power Supply PWB 1. Screw ..................... (F1) x2 10-2
2. Socket .................... (F2) x4
3. Flat Wire................. (F3) x1 10-3
7 Front Panel 1. Screw ..................... (G1) x2 10-2
8 Display PWB 1. Screw ..................... (H1) x14 10-3
2. Socket .................... (H2) x1
9 Tape Mechanism 1. Open the cassette holder. 10-3
2. Screw...................... (J1) x5
10 Headphones PWB 1. Screw ..................... (K1) x1 10-3
11 Turntable 1. Hook....................... (L1) x2 10-4
2. Cover ..................... (L2) x1
12 Disc Tray 1. Turn fully the lock lever in the 9-3
arrow direction.
2.
While holding the lock lever,rotate 10-1
the cam gear until the cam gear
rib engages with the clamp lever.
3. Push the slide holder backward to 10-5
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 10-6
(Note 2) 2. Hook....................... (N2) x2
3. Socket .................... (N3) x4
14 CD Mechanism 1. Hook....................... (P1) x2 11-1
2. Hook....................... (P2) x3
15 Loading Motor PWB 1. Hook....................... (Q1) x5 11-1
STEP REMOVAL PROCEDURE FIGURE
Figure 9-1
CD-PC3500
Note 1:
How to open the changer manually. (Fig. 9-3)
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. 10-1)
3. After that, push forward the CD slide holder.
Note 2:
1.Afterremoving theconnectorfor theopticalpickup fromthe
connector, wrap the conductive aluminium foil around the
frontendoftheconnectorsoastoprotectthe opticalpickup
from electrostatic damage.
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2.Whenfining backthecam gear assembly,letit lockbyfront
movement.
LOCK LEVER
(B1)x4
ø3x12mm (B1)x2
ø3x10mm
Rear
Panel
(B1)x2
ø3x10mm
Side Panel
(Right)
Side Panel
(Left)
(A1)x2
ø3x12mm
(A1)x2
ø3x12mm Top Cabinet
(E1)x2
ø3x10mm
(E1)x1
ø3x6mm
(C3)x1
(D1)x2
ø3x10mm
(C1)x1
ø3x10mm
(D1)x8
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-PC3500
– 10 –
Figure 10-1
Figure 10-2
Figure 10-3
Figure 10-4
Figure 10-5
Figure 10-6
CLAMP LEVER
CAM GEAR RIB
Turntable
Disc Tray
(L2) x1
CD Player Unit
(L1) x2
1
3
2
(M1) x3
(M1) x3
(N3) x2
(N2) x2
(N3) x2
CD Servo
PWB CD Player
Base
(N1)x1
ø3x8mm
(F1)x1
ø3x6mm
(G1)x2
ø3x10mm
(F1)x1
ø3x10mm
(F2)x3
(F2)x1
(E3)x1
(E4)x1
(E2)x2
Main PWB
Power
Supply
PWB
Power
Supply
PWB
(H1)x14
ø3x10mm
(H2)x1
(J1)x5
ø3x10mm
(K1)x1
ø3x10mm
(F3)x1
Display PWB
Headphones
PWB
Open
Cassette
Holder
Tape
Mechanism

– 11 –
CD-PC3500
CP-C3500
1 Front Panel 1. Front Panel ............ (A1) x1 11-2
2 Woofer 1. Screw ..................... (B1) x4 11-2
4 Tweeter 1. Screw .................... (C1) x2 11-2
5 Super Tweeter 1. Screw .................... (D1) x2 11-2
STEP REMOVAL PROCEDURE FIGURE
CP-C3500
Figure 11-2
Figure 11-1
(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

CD-PC3500
– 12 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 7 and 9 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.Carefullypushthe inside clawtoremove it. Thepinchroller
pawlinthedirectionofthearrow<A>,andremovethepinch
roller (C1) upwards.
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
(A1)x2
Ø2 x 9mm
TAPE2
Record/Playback
Head
Erase Head
(B1)x2
Ø2 x 9mm
TAPE1
Playback
Head
Pinch Roller
(C1)x1 <A>
(F1) x2
Ø 2.6 x 5mm
Motor

– 13 –
CD-PC3500
How to remove the pickup (See Fig. 13-2)
1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2).
2.Removethescrews (B3) x 2pcs.,toremove the shaft (B4).
3. Remove the pickup.
Figure 13-2
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11 and 14 of the disassembly 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
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 13-3
TAPE MECHANISM
Motor
Variable Resistor in motor

CD-PC3500
– 14 –
CD SECTION
• 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-renge frequency
AM IF 450 kHz 1,720 kHz T351 *1
AM Band — 530 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 RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
FM Band — 87.50 MHz T301(fL): *1
Coverage 1.3 V ±50 mV
FM RF 98.00 MHz 98.00 MHz L312 *2
(10-30 dB)
Test Stage Instrument
Connection
Frequency Frequency
Display Serring/ Adjusting
Point
Figure 14-1 ADJUSTMENT POINT
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
IC301
R381
TP302
TP301
R357
AM IF
FM IF FM RF
T303
T306
T302 L312
AM
TRACKING fL
AM BAND
COVERAGE fL
T301
T351
FM BAND
COVERAGE fL
TUNER PWB
CNP301
AM LOOP
ANTENNA
Figure 14-2
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 14-2
EFBL)
(3)Gain adjustment(The gainis compensatedinsidetheIC
sothattheloop gain at thegaincrossover 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

– 15 –
CD-PC3500
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.
•Inthe Phantommode ofProLogic ONmodethe amplifierfor
C-ch is in MUTE state, so that the SP output is cut. The
amplifierforS-ch(surround)is in operative state, sothatthe
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-PC3500
– 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 POWER 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 16 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-PC3500
Figure 17 BLOCK DIAGRAM (1/3)
CNP12
CNP11
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)
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
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 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-PC3500
– 18 –
Figure 18 BLOCK DIAGRAM (2/3)
VOLUME
JOB
VR701
FM
ANTENNA
AM LOOP
ANTENNA
1
2
3
CNP301
Q706 +4B
+4B
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
45
9
21
16
21
1 2
24 23
15
20
1
22
15
14
15
12
7 9
11
3
94
5
6
10
GNDAM IF
FM IN
IC302
LC72131
PLL (TUNER)
OSC
AM IF
AM MIX
AM IN AM OSC IN
AM RF IN
X352
4.5MHz
FMOSC
AM TRACKING AM OSC
T351
+B9 +B9
+B9
IC303
LA1832
FM/AM IF MPX.
L
R
STEREO
AM OSC IN
VT
DO DI CL CE
1
24
2
23
3
4
4
21
5
20
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
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
17
+B5
+B9
+B5
+B5
+B5
VOLTAGE
REGURATER
9
1
3
8
87
10
14
2
9
4
11
16
10
15
11
14
12
13 8
17 18 7
1
2
75
74
34
21 69 25
38
35
37
36
3
IC401
LC75341M
AUDIO PROCESSOR
IC201
BU4066BH
SWITCHING
L
R
L
R
L
R
L
R
L
R
L
L
R
R
TUNER
L
R
VIDEO
TAPE
CD
BAIS
T1/T2
REC
MUTING
Q503
Q504
+B5
21
4
9
Q401
Q402
Q501
Q502
ZD801
9
1
2 3 4 5 7 8
6
Q302
FM IF IN
FM IF
FM RF
FM
OSC
T302
FM OSC
FM B.P.F
IC301
TA7358AP
FM FRONT END
T301
L312
OSC BUFF
BF301
7
FM
Q360
FM +B
VOLTAGE
REGULATOR
CF303
FM+B MO/ST
FM/AM
BIAS
OCS
15 19
24 1 2 23
MONO/ST
JK201
VIDEO IN
T331 T306
CF352
TAPE
MECHANIS
M
+B7
IC501
M62464FP
DOLBY PRO LOGIC
DECORD
CL DI CE

– 19 –
CD-PC3500
Figure 19 BLOCK DIAGRAM (3/3)
Q709
IC804
IC801
IC802
IC601
IC602
IC603
KIA4558P
OPE AMP.
IC702
IC703
BU2092F
JK501
SUB WOOFER
OUTPUT
U
ME
O
B
7
01
Front
Speaker
Center
Speaker
L-ch
R-ch
L-ch
R-ch Rear
Speaker
SO901
Speaker Terminal
1 2 3 6
14 5333 27 32 545556
FL701
DISPLAY
9 8 7
24 2322
18
17
1
IC701
IX0332AW
SYSTEM CONTROL
MICROCOMPUTER
13 2
13 2
13 2
IC502
KIA4558
OPE. AMP .
VDD
+B7
MEMORY
BACK UP
VDD
XL701
KEY
SW701~SW708
SW710~SW722
SW728~SW732
+B3
+B7
M
Q910
+B6
TO CD
SECTION
M901
FAN MOTOR
JK601
HEADPHONES
T.F
PT801
POWER
TRONSFORMER
RL801
AC POWER
SUPPLY CORD
AC 120V, 60Hz
PT802
POWER
TRONSFORMER
Q803
+B8
IS
2
+B5
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
STK402-071
POWER AMP.
IC902
STK402-030
POWER AMP.
–B1
+B3
+B1
L
LL
R
RR
9
13
5
1
4
8
7
3
8
–B2 +B2
R-OUT
Q401
Q402
ZD801
+B5
–B3(–15V)
+B4(M+10V)
+B6
+B2
(A+10V)
(CD+5V)
(UNSW+5V)
(SW+5V)
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
AVDD
~~~
1
15
1
15
13
4
101112131517181920
25
2627
28
31
32
33
34
36
39
40
46
56
55
54
53
51
50
91
16
86
80
100 90 7938
37
5554
535247
VDD
D814~D817
FRONT
F801
5A/125V
F802
5A/125V
F803
4A/125V
F804
4A/125V
F805
2A/250V
1516 24 2625
+B7
+B7
LED701~LED714
IC704
KIA7042P
TAPE
MECHANISM
+B7
+B7
RL902
RL901
~
~
78 8560
~~
Q804

CD-PC3500
– 20 –
Figure 20 SCHEMATIC DIAGRAM (1/12)
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
EFBL
PH
TDO
FDO
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
88
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
GND(D)
PUIN
SP+
SP-
SL+
SL-
3
2
5
1
4
6
2
3
5
1
4
6
3
6
1
4
5
22
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
47/10
C53
0.001
R25
10K
C7
10/16
C8
0.1
R47
3.3
Q3
KTA1266GR
LASER DRIVER
R50
47
C14
0.33
C13
0.01
R42
120K
R3
100K
R4
10K
C11
0.47/6.3
R6
27K
R7
6.8K
R5
39K
C12
0.1
C18
3P
(CH)
C19
100/10
R8
330
R10
27K
C26
0.047
C22
100P
R80
1M
R79
1.5M
C24
2.2/50
C21
0.1
C23
0.047 R12
680
R
1
R11
12K
R
6
0
C27
0.1
C17
0.0047
R15
10K
C20
0.1
C42
68P
C25
0.1
C41
100/10
C28
47/10
C82
0.022
R
4
1
K
C
0
D93
DS1SS133 R43
220K
C47
100/16
C49
100/16
C50
100/16
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