Sharp CDDD4500 Service Manual
CD-DD4500
SERVICE MANUAL
No. S7144CDDD4500
MINI COMPONENT SYSTEM
MODEL CD-DD4500
CD-DD4500 Mini Component System consisting of
CD-DD4500 (main unit), CP-DD4500 (Front), center
(GBOXS0064AWM1), surround (R) (GBOXS2008AWM1) and
surround (L) (GBOXS4008AWM1) speaker system.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories.
Confidential unpublished works. © 1992-1997 Dolby Laboratories. All rights reserved.
CONTENTS
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)....................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 2
NAMES OF PARTS ........................................................................................................................................................... 3
OPERATION MANUAL ...................................................................................................................................................... 6
DISASSEMBLY................................................................................................................................................................ 12
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 15
ADJUSTMENT ................................................................................................................................................................. 17
BLOCK DIAGRAM ........................................................................................................................................................... 21
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................24
VOLTAGE ........................................................................................................................................................................ 48
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 49
TYPES OF TRANSISTOR AND LED................................................................................................................................49
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 50
TROUBLESHOOTING ..................................................................................................................................................... 51
FUNCTION TABLE OF IC................................................................................................................................................ 55
FL DISPLAY......................................................................................................................................................................68
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
Page
SHARP CORPORATION
– 1 –
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-DD4500
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
pinched or that hardware is not lodged between the chassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment covers
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
having a return path to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
VTVM
AC SCALE
1.5k ohms
10W
0.15 µ F
TO EXPOSED
TEST PROBE
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
SPECIFICATIONS
CD-DD4500
General
Power source AC 120 V, 60 Hz
Power consumption 230 W
Dimensions Width: 10-11/16" (270 mm)
Weight 19.4 lbs (8.8 kg)
Amplifier
Output power Front speakers (Main) : 30 W minimum RMS per chan-
Output terminals Front speakers (Main) : 8 ohms
Input terminals DVD (Digital) : Optical
CD player
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 100 dB (1 kHz)
Tuner
Frequency range FM: 87.5-108 MHz
Specifications for this model are subject to change without
prior notice.
Height: 13" (330 mm)
Depth: 14-11/16" (372 mm)
nel into 8 ohms.
Front speakers (Subwoofer) : 40 W per channel : 6 ohms
(100 Hz, 10 % T.H.D.)
Center speaker : 30W : 6 ohms
(1 kHz, 10 % T.H.D.)
Surround speakers : 20W per channel : 8 ohms
(1 kHz, 10 % T.H.D.)
Front speakers (Subwoofer) : 6 ohms
Center speaker : 6 ohms
Surround speakers : 8 ohms
Subwoofer(Pre-out) : 10 kohms
Headphones : 16-50 ohms (recommended; 32 ohms)
VCR/Auxiliary : 500 mV/47 kohms
AM: 530-1,720 kHz
Cassette deck
Frequency response 50 -14,000 Hz (Normal tape)
Signal/noise ratio 55 dB (TAPE 1, playback)
Wow and flutter 0.25 % (WRMS)
CP-DD4500
Type 3 - way, 5-1/8" (130 mm) subwoofer, 4" (100 mm)
Maximum input power Subwoofer: 80 W
Impedance Subwoofer: 6 ohms/ Main: 8 ohms
Dimensions Width: 8- 5/8" (220 mm)
Weight 9.0 lbs. (4.1 kg)/each
GBOXS0064AWM1
Type Full range, 4" (100 mm)
Maximum input power 60 W
Impedance 6 ohms
Dimensions Width: 10- 1/4" (260 mm)
Weight 2.2 lbs. (1.0 kg)/each
GBOXS2008AWM1
GBOXS4008AWM1
Type Full range, 4" (100 mm)
Maximum input power 40 W
Impedance 8 ohms
Dimensions Width: 7- 7/8" (200 mm)
Weight 1.3 lbs. (0.6 kg)/each
– 2 –
50 dB (TAPE 2, recording/playback)
woofer and 2" (50 mm) tweeter
Main: 60 W
Height: 13" (330 mm)
Depth: 9- 5/8" (245 mm)
Height: 5- 5/8" (142 mm)
Depth: 6- 11/16" (170 mm)
Height: 6- 3/4" (172 mm)
Depth: 3- 3/4" (95 mm)
CD-DD4500
Front panel
1. Disc Tray
2. Surround Effect Buttons
3. Timer Set Indicator
4. Power On/Stand-by Button
5. Tape 2 Cassette Compartment
6. Tape 1 Cassette Compartment
7. Equalizer Mode Select Button
8. Volume Control
9. Extra Bass/Demo Mode Button
10. Disc Tray Open/Close Button
11. Disc Number Select Buttons
12. Disc Skip Button
13. Tuning and Time Up Button
14. CD or Tape Stop Button (with Indicator)
15. CD Button
16. Tuner (Band) Button
17. Tape (1 2) Button
18. DVD/VCR Button
19. Dimmer Button
20. Clock Button
21. Timer/Sleep Button
22. Headphone Jack
23. CD Play or Repeat, Tape Play Button
(with Indicator)
24. CD Fast Forward, Tape 2 Fast Forward
or Tuner Preset Up Button
25. Tuning and Time Down Button
26. Memory/Set Button
27. Tape 2 Record Pause Button
28. CD Fast Reverse, Tape 2 Rewind
or Tuner Preset Down Button
NAMES OF PARTS
1
2
3
4
19
20
21
22
7
8
9
25 26 27 28
CD-DD4500
10
11
12
5
6
181716151413
23
24
Display
1. Left Front Speaker Indicator
2. Low Frequency Effect Indicator
3. Center Speaker Indicator
4. Right Front Speaker Indicator
5. Subwoofer Indicator
6. Left Surround Speaker Indicator
7. Surround Indicator
8. Right Surround Speaker Indicator
9. Extra Bass Indicator
10. Tape 2 Record Indicator
11. CD Repeat Indicator
12. Disc Number Indicators
13. FM Stereo Receiving Indicator
14. FM Stereo Mode Indicator
15. Sleep Indicator
16. Dolby Pro Logic Indicator
17. Memory Indicator
18. CD Random Play Indicator
19. CD Play Indicator
20. CD Pause Indicator
21. Tape Play Indicator
22. CD Music Schedule Indicators
23. Timer Recording Indicator
24. Timer Play Indicator
25. Dolby Digital Indicator
26. Dolby Virtual Indicator
17
18
19
12
3
4
5
7
1 2
5
68
9
1011 13 14 15 16
20
22 2324 25
21
26
– 3 –
CD-DD4500
CD-DD4500
Rear panel
1. DVD Digital Input Jack
2. Center Speaker Jacks
3. Surround Speaker Jacks
4. FM/AM Loop Antenna Jack
5. Video/Auxiliary (Audio Signal) Input Jacks
6. Speaker Terminals
7. Subwoofer Pre Output Jack
8. AC Power Cord
1
2
3
4
5
6
7
8
Remote control
1. Remote Control Transmitter
2. CD Memory Button
3. Set Up Menu Select Buttons
4. Menu Button
5. Item Button
6. Disc Number Select Buttons
7. CD Random Button
8. CD Pause Button
9. CD Fast Reverse/Preset Down Button
10. CD Stop Button
11. Tape 2 Record Pause Button
12. Tuner (Band) Button
13. CD Button
14. Extra Bass Button
15. CD Clear Button
16. Power Button
17. Surround Effect Buttons
18. Equalizer Mode Select Button
19. CD Play or Repeat Button
20. CD Fast Forward/Preset Up Button
21. Tape 1/Tape 2 Play Button
22. Tape 1/Tape 2 Stop Button
23. Tape 2 Fast Forward Button
24. Tape 2 Rewind Button
25. DVD/VCR Button
26. Tape (1 2) Button
27. Volume Up or Down Buttons
✱
✱
✱
✱
✱
10
11
12
13
14
11
✱
2
3
4
15
16
17
5
6
7
8
9
18
19
20
21
22
23
24
25
26
27
Buttons with “✱” mark in the illustration can be operated with the remote control
only.
Other buttons can be operated on the main unit and the remote control.
– 4 –
Front Speaker
CP-DD4500
CD-DD4500
1. Woofer
2. Tweeter
3. Subwoofer
4. Speaker Wire for SUBWOOFER Terminals
5. Bass Reflex Duct
6. Speaker Wire for MAIN Terminals
Center Speaker
GBOXS0064AWM1
Front speaker
(left)
1
2
3
Front speaker
(right)
1
2
3
4
5
6
4
5
6
1. Full-Range Speaker
2. Speaker Wire
Surround Speaker
GBOXS2008AWM1
GBOXS4008AWM1
1. Full-Range Speaker
2. Speaker Wire
1
2
1
2
1
2
– 5 –
CD-DD4500
Setting the Clock
OPERATION MANUAL
In this example, the clock is set for the 12-hour (AM 12:00) display.
1
Press the POWER button to turn the power on.
2
Press the CLOCK button and within 5 seconds, press the
MEMORY/SET button.
3
Press the TUNING/TIME ( or ) button to select the 12-hour or
24-hour display and then press the MEMORY/SET button.
“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 1 1:59)
“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.
4
Press the TUNING/TIME ( or ) button to adjust the hour and
then press the MEMORY/SET button.
Press the
TUNING/TIME ( or )
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 )
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.
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 after unplugging the unit.
Readjust the clock as follows.
To readjust the clock:
Perform “Setting the Clock” from the beginning.
If the time display is flashing, step 3 (for selecting the 12-hour or 24-hour display) will
be skipped.
To change the 12-hour or 24-hour display:
1. Clear all the programmed contents.
[Refer to “Clearing all the memory (reset)”.]
2. Perform “Setting the Clock” from the beginning.
button once to advance the time by 1
button once to advance the time by 1
Dolby Digital
When you connect this unit to a DVD player which is playing a disc with the
trademark, you can enjoy realistic, powerful sound by playing back the recorded signal
through 5 speakers with the sound coming from the front left, front right, center, surround left and surround right speakers.
To listen to a disc using the Dolby Digital mode
1
Connect a DVD player.
2
Press the DVD/VCR button to select “DVD”.
3
Start the DVD player.
Note:
When in the Dolby Digital surround mode, the equalizer will be set to FLAT.
Type of Dolby digital signal
There are different types of Dolby digital signals. The type of Dolby digital signal being
input into this unit can be checked in the display.
Normal PCM playback
Center only (monaural)
Front (L, R)
(When the surround mode is set to Normal or Phantom,
sound will also be heard from the surround speakers.)
Front (L, R) + surround
(monaural)
Front (L, R) + surround (L, R)
Front (L, R) + center
Front (L, R) + center + surround (monaural)
Front (L, R) + center + surround (L, R)
If a low frequency sound effect (Low Frequency Effect) contains a Dolby digital signal,
“LFE” will light in the display.
When this “LFE” is lit, low frequency signals will be output from the subwoofer.
– 6 –
Troubleshooting Chart
CD-DD4500
Many potential “problems” can be resolved by the owner without calling a service technician. If something is wrong with this product, check the following before calling your
authorized SHARP dealer or service center.
General
Symptom
The clock is not on time.
When a button is pressed, the unit
does not respond.
No sound is heard.
The balance between the left and
right channels is bad.
Hum or excessive noise.
No sound is heard, or the sound
is too low, from the center or surround speakers.
The TIMER indicator is flashing.
Possible cause
Did a power failure occur?
Reset the clock.
Set this unit to the power stand-by mode
and then turn it back on.
If the unit still malfunctions, reset it.
Is the volume level set to “0”?
Are the headphones connected?
Are the speaker wires disconnected?
Are the front and surround speakers
connected to the correct left and right
channels?
If an external unit is connected, are the
left and right channels connected properly?
Is the speaker cord plugged in correctly?
Does the speaker cord run past other
electronic equipment?
Are the plugs or terminals dirty?
Is the “SP SIZE” item set to “NO” in the
“SET UP” operation?
Is the volume too low?
Is the speaker wire shorted?
Was the unit used at high volume for
many hours?
CD player
Symptom
Playback does not start.
Playback stops in the middle or is
not performed properly.
Playback sounds are skipped, or
stopped in the middle of a track.
Tuner
Symptom
Radio makes unusual noise consecutively.
Cassette deck
Symptom
Cannot record.
Cannot record tracks with proper
sound quality.
Cannot erase completely.
Sound skipping.
Cannot hear treble.
Sound fluctuation.
Cannot remove the tape.
Possible cause
Is the disc loaded upside down?
Does the disc satisfy the standards?
Is the disc distorted or scratched?
Is the unit located near excessive vibrations?
Is the disc very dirty?
Has condensation formed inside the
unit?
Possible cause
Is the unit placed near the TV or computer?
Is the FM/AM loop antenna placed properly?
Move the AC power cord away from the
antenna if located near.
Possible cause
Is the erase-protection tab removed?
Is it a normal tape?
(You cannot record on a metal or CrO
tape.)
Is there any slack?
Is the tape stretched?
Are the capstans, pinch rollers, or heads
dirty?
If a power failure occurs during playback,
the heads remain engaged with the tape.
Do not open the compartment forcibly.
Wait until electricity resumes.
2
Remote control
Symptom
The remote control does not operate.
Is the AC power cord 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?
Connecting DVD player
Symptom
Although a DVD player is connected, no sound is heard.
Is the power to the DVD player connected properly?
Is a digital signal being output from the
DVD player?
Is “DVD NO” being displayed?
Does the type of DVD digital signal appear in the display?
Since “DVD---” is not output from the
Dolby digital source, it cannot be
decorded.
Is a Dolby digital 2/0 (monaural) signal
being played with the surround mode set
to NORMAL and without a center
speaker connected?
Possible cause
Possible cause
Condensation
Sudden temperature changes, storage or operation in an extremely humid environment may cause condensation inside the cabinet (CD pickup, tape heads,
etc.) or on the transmitter on the remote control.
Condensation can cause the unit to malfunction.
If this happens, leave the power on with no disc (or cassette) in the unit until
normal playback is possible (about 1 hour). Wipe off any condensation on the
transmitter with a soft cloth before operating the unit.
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.
– 7 –
CD-DD4500
Troubleshooting Chart
Clearing all the memory (reset)
1
. Press the POWER button to enter the power stand-by mode.
2
. While pressing down the / button and X-BASS/DEMO button, press
the POWER button until “CLEAR AL” appears.
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, CD program, and other set-up details.
Before transporting the unit
1.
Press the POWER 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 the unit.
4.
Press the OPEN/CLOSE button to close the disc tray.
Make sure that “NO DISC” is displayed.
5.
Press the POWER button to enter the stand-by mode, and then unplug the
AC power cord from the AC outlet.
When TIMER indicator is flashing
The unit will be overheated when TIMER indicator is flashing.
Due to a problem in the speaker circuit, the unit will enter the stand-by mode
automatically.
In this case, take the following corrective actions.
1
. Unplug the AC power plug from the AC outlet.
2
. Make sure that the unit vent is not blocked.
3
. Make sure that the speaker wires have been correctly connected to the
speaker terminals.
4
. After checking items 2 and 3 above, wait for 2 or 3 hours before trying to use
the unit.
5
. Reconnect the AC power cord.
Note:
If the TIMER indicator flashes again during use, please unplug the AC power plug,
and contact a SHARP authorized service center.
Remote Control
Test of the remote control
Face the remote control directly to the remote sensor on the unit.
The remote control can be used within the range shown below:
Press the POWER button. Does the power turn on? Now, you can enjoy the music.
Remote sensor
8" - 20'
(0.2 m - 6 m)
Notes concerning use:
Replace the batteries if the operating distance is reduced or if the operation be-
comes erratic.
Periodically clean the transmitter on the remote control and the sensor on the unit
with a soft cloth.
Exposing the sensor on the unit to strong light may interfere with operation. Change
the lighting or the direction of the unit.
Keep the remote control away from moisture, heat, shock, and vibrations.
– 8 –
CD-DD4500
Accessories
Accesorios
1
FM/AM loop antenna × 1
Antena de cuadro de FM/AM
×
1
Remote control × 1
Controlador remoto
×
1
1
3
2
Battery Installation of the Remote Control
Instalación de las pilas del controlador remoto
Use 2 “AA” size batteries (UM/SUM-3, R6, HP-7 or similar). Batteries are not included.
Use dos pilas del tamaño “AA” (UM/SUM-3, R6, HP-7 o equivalentes). Las pilas no están incluidas.
Remove the
Insert the batteries
Replace the cover.
battery cover.
as shown.
Extraiga la cubierta Inserte las pilas Vuelva a colocar la
de las pilas. como se muestra. cubierta.
2
System Connections
Conexiones del sistema
3
AC outlet
(AC 120 V, 60 Hz)
A un tomacorriente de
CA (120 V de CA, 60 Hz)
Front speaker (Right)
Altavoz delantero (Derecho)
Front speaker (Left)
Altavoz delantero
(Izquierdo)
FM antenna
Antena de FM
AM loop antenna
Antena de cuadro de AM
Blue
Azul
Red
Rojo
Black
Negro
Black
Negro
Blue
Azul
Red
Rojo
Black
Negro
Black
Negro
Surround speaker (Right)
Altavoz de sonido perimétrico
(Derecho)
Surround
speaker
(Left)
Altavoz de
sonido
perimétrico
(Izquierdo)
Center speaker
Altavoz central
Right
Derecho
Left
Izquierdo
– 9 –
CD-DD4500
External unit Connections
Conexiones de unidades externas
RCA cord
(not supplied)
Cable RCA
(no suministrado)
To the line output jack
A la toma de salida de línea
VCR
Videograbadora
TV
TV
DVD player
Reproductor DVD
Digital cord
(not supplied)
Cable digital
(no suministrado)
Speaker with a
built-in amplifier
Altavoz con amplificador
incorporado
4
Front left
Delantero izquierdo
Center
Central
Front right
Delantero derecho
Surround left
Sonido perimétrico
izquierdo
Surround right
Sonido perimétrico
derecho
Same distance
Misma distancia
Front left
Delantero izquierdo
Center
Central
Front right
Delantero derecho
Example: When installed on the wall
Ejemplo: Cuando se instalan en la pared
Surround speaker
Altavoz de sonido
perimétrico
Wall
Pared
23-5/8" - 35-7/16"
(60 - 90 cm)
60 - 90 cm
Example: When installed vertically
Ejemplo: Cuando se instalan verticalmente
Example: When installed horizontally
Ejemplo: Cuando se instalan horizontalmente
Placing the speakers
Situación de los altavoces
5
– 10 –
CD-DD4500
Turning on Your System
Conexión de la alimentación de su sistema
The first time the unit is plugged,
the unit will enter the demonstra-
tion mode. You will see words
scroll.
Cuando se enchufe por primera vez
el aparato, se establecerá en el
modo de demostración. Verá un
desplazamiento de palabras.
5” (12 cm)
12 cm
3” (8 cm)
8 cm
Listening to a CD (CDs)
Audición de un disco CD (discos CD)
1
Press the CD button.
Pulse el botón CD.
2
Press the OPEN/CLOSE button to
open the disc tray.
Pulse el botón OPEN/CLOSE para abrir
la bandeja de discos.
3
Place the CD(s) on the disc tray, label
side up.
When loading a third disc, press the
DISC SKIP button to turn the disc tray,
then place the CD in the open position.
Coloque el disco compacto en la bandeja
de discos, con el lado de la etiqueta hacia
arriba.
Cuando ponga un tercer disco, pulse el
botón DISC SKIP para girar la bandeja de
discos, y coloque el disco compacto en la
posición abierta.
4
Press the OPEN/CLOSE button to
close the disc tray.
Pulse el botón OPEN/CLOSE para cerrar
la bandeja de discos.
5
To select the CD you want to listen to
first, press one of 1 - 3 buttons.
Para seleccionar el disco CD que desee
escuchar primero, pulse uno de los botones
1 - 3.
6
Press the
/
button to start playback.
Pulse el botón
/
para iniciar la
reproducción.
6
Press the
X-BASS/DEMO
button to cancel
the demonstration
mode.
Pulse el botón
X-BASS/DEMO para
cancelar el modo de
demostración.
Press the POWER
button to turn the
power on.
Pulse el botón POWER
para conectar la
alimentación.
12
Listening to a Cassette Tape (TAPE 1 or TAPE 2)
Audición de una cinta de cassette (TAPE 1 o TAPE 2)
Listening to the Radio
Audición de la radio
TAPE 1
TAPE 2
FM stereo mode indicator
Indicador del modo de FM
en estéreo
FM stereo receiving indicator
Indicador de recepción de FM
en estéreo
1
Press the TUNER (BAND) button repeat-
edly to select the desired frequency
band (FM or AM).
Pulse repetidamente el botón TUNER
(BAND) para seleccionar la banda de
frecuencia deseada (FM o AM).
2
Press the TUNING/TIME ( or ) but-
ton to tune in to the desired station.
When the TUNING/TIME ( or ) button
is pressed for more than 0.5 seconds,
scanning will start automatically and the
tuner will stop at the first receivable
broadcast station.
Pulse el botón TUNING/TIME ( o ) para
sintonizar la emisora deseada.
Cuando se pulse el botón
TUNING/TIME (
o ) durante más de 0,5 segundos, la
exploración se iniciará automáticamente y
el sintonizador se parará en la primera
emisora difusora que pueda recibirse.
To receive an FM stereo transmission:
Press the TUNER (BAND) button to display “ST”.
“ ” will appear when an FM broadcast is in ste-
reo.
Para recibir una transmisión de FM en estéreo:
Pulse el botón TUNER (BAND) para visualizar “ST”.
“ ” aparecerá cuando una difusión de FM sea en
estéreo.
1
Open the cassette door by pushing the
area marked “ PUSH EJECT”.
Abra la puerta del cassette pulsando la
parte marcada “ PUSH EJECT”.
2
Load the cassette into the TAPE 1 or
TAPE 2 cassette compartment with the
side to be played facing toward you.
Cargue el cassette en el compartimiento
de cassette de TAPE 1 o de TAPE 2 con la
cara a reproducirse encarada hacia usted.
3
Press the TAPE (1 2) button to select
the cassette you want to listen to.
Pulse el botón TAPE (1 2) para
seleccìonar el cassette que desee
escuchar.
4
Press the / button to start playback.
Pulse el botón / para iniciar la
reproducción.
– 11 –
CD-DD4500
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
CD-DD4500
STEP
10 Tape Mechanism 1. Open the cassette holder. 13-5
11
12 Turntable 1. Hook....................... (M1) x2 13-6
13 Disc Tray 1.
14 CD Servo PWB 1. Screw ..................... (P1) x1 14-2
15 CD Mechanism 1. Hook....................... (Q1) x2 14-3
Note 1: How to open the changer manually. (Fig. 12-3)
1. In this state, turn fully the lock lever in the arrow direction through
2.
3. After that, push forward the slide Chissis.
REMOVAL
1 Top Cabinet 1. Screw ..................... (A1) x4 12-1
2 Side Panel 1. Screw..................... (B1) x8 12-1
(Left/Right)
3 CD Player Unit/ 1. Turn on the power supply, 12-2
CD Tray Cover open the disc tray, take out
4 Dolby PWB 1. Screw ..................... (D1) x5 13-2
5 Rear Panel with 1. Screw .................... (E1) x11
Fan Motor 2. Socket ..................... (E2) x1 13-2
6 Main PWB 1. Screw ..................... (F1) x2
7 AMP. A/AMP. B 1. Screw ..................... (G1) x4 13-4
PWB with Heat Sink
8 Front Panel 1. Screw ..................... (H1) x3 13-4
9 Display PWB 1. Knob........................ (J1) x1 13-5
Headphones PWB
(Note 2) 2. Hook....................... (P2) x2
the hole on the loading chassis bottom.
While holding the lock lever, rotate the cam gear anticlockwise until the
cam gear rib engages with the clamp lever.
the CD tray cover, and close.
(Note 1)
2. Screw ..................... (C1) x1
3. Hook....................... (C2) x3
4. Hook....................... (C3) x2
5. Socket .................... (C4) x3
2. Flat Cable .............. (D2) x2
2. Flat Cable .............. (F2) x1 13-3
3. Socket .................... (F3) x6
2. Flat Wire................. (G2) x1
3. PWB Holder ........... (G3) x2
2. Screw .................... (J2) x13
3. Flat Cable ............... (J3) x1
2. Screw...................... (K1) x5
1. Screw ..................... (L1) x1 13-5
2. Cover ..................... (M2) x1
2.
3.
3. Socket .................... (P3) x4
2. Hook....................... (Q2) x3
PROCEDURE
Turn fully the lock lever in the
arrow direction
While holding the lock lever,rotate
the cam gear until the cam gear
rib engages with the clamp lever.
Push the slide chissis backward to
engage the claw with the groove
and remove it in the direction
of the arrow. ...............
.
(N1) x6
(Fig. 13-1)
FIGURE
12-2,13-2
12-2,13-2
12-2,13-3
12-3
13-1
14-1
CD-DD4500
Side Panel
(Right)
(B1) x 2
ø3 x 10mm
(B1) x 4
ø3 x 10mm
(A1) x 2
ø3 x 12mm
Rear
Panel
Top Cabinet
(B1) x 2
ø3 x 10mm
(A1) x 2
ø3 x 12mm
Side Panel
(Left)
Figure 12-1
(C3) x 1
Pull
(C1) x 1
ø3 x 10mm
Rear
Panel
CD Servo
PWB
(C4) x 2
Main PWB
1
(E1) x 2
ø3 x 10mm
CD Tray Cover
(C2) x 3
1
CD Player
Unit
(C3) x 1
Lug Wire
(F1) x 1
ø3 x 10mm
2
Figure 12-2
Lock Lever
CD Player Unit
(Bottom View)
Figure 12-3
Note 2:
1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electrostatic damage.
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front
movement.
– 12 –
CD-DD4500
Turntable
Slide
Chassis
(M2) x 1
CD Player Unit
(M1) x 2
Dolby
PWB
ø3 x 10mm
(C4) x 1
(D2) x 2
Figure 13-1
(D1) x 4
Clamp Lever
CD Player Unit
(Top View)
Cam Gear Rib
Main PWB
(G3) x 1
Amp. B
PWB
(G3) x 1
(G1) x 2
ø3 x 6mm
(G1) x 2
ø3 x 10mm
PushPush
PushPush
Amp. A
PWB
Display PWB
(G2) x 1
Headphones
PWB
Front
Panel
(H1) x 3
ø3 x 8mm
Figure 13-4
(J3) x 1
(J1) x 1
Rear
Panel
(D1) x 1
ø3 x 10mm
(E1) x 9
ø3 x 10mm
(F1) x 1
ø3 x 10mm
Power PWB
(F2) x 1
Transformer
PWB
(F3) x 1
Figure 13-2
(F3) x 1
Amp. B
PWB
(E2) x 1
Front
Panel
Main PWB
(J2) x 13
ø3 x 10mm
Mechanism
(K1) x 5
ø3 x 10mm
Washer
(L1) x 1
ø3 x 10mm
Tape
Open
Cassette
Holder
Lug Wire
Headphones
PWB
Figure 13-5
Amp. B
PWB
Amp. A
PWB
(F3) x 2
(F3) x 1
Figure 13-3
Main PWB
Amp. A
PWB
(F3) x 1
Figure 13-6
– 13 –
CD-DD4500
(C1) x 2
ø3 x 10mm
Woofer
Subwoofer
Tweeter
(A2) x 4
ø4 x 16mm
(B1) x 4
ø4 x 16mm
1
(P2) x 2
2
(P1) x 1
ø3 x 8mm
(P3) x 2
(N1) x 3
CD Player Unit
Figure 14-1
CD Servo
PWB
3
(N1) x 3
Slide
Chassis
CP-DD4500
STEP
(A1) x 1
Speaker Box
REMOVAL PROCEDURE
1 Subwoofer 1. Front Panel ............ (A1) x1 14-4
2. Screw ..................... (A2) x4 14-5
2 Woofer 1. Screw ..................... (B1) x4 14-5
3 Tweeter 1. Screw ..................... (C1) x2 14-5
Screwdriver
Driver should
be pried away
from Speaker Box.
Figure 14-4
FIGURE
(P3) x 2
CD
Mechanism
(Q1) x 1
Figure 14-2
(Q1) x 1
(Q2) x 3
Figure 14-5
Figure 14-3
– 14 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 8 and 10 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 15-1)
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. 15-2)
1. When you remove the screws (B1) x 2 pcs., the playback
head.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 15-3)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x 1 pc., in the
direction of the arrow <B>.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
Erase Head
(A1)x2
Ø2 x 9mm
TAPE 1
TAPE 2
Figure 15-1
CD-DD4500
Clutch Ass'y
Record/Playback
Head
Clutch Ass'y
Playback
Head
How to remove the belt (TAPE 2) (See Fig. 15-4)
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. 15-4)
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. 15-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Motor
Clutch Ass'y
(F1) x2
Ø 2.6 x 5mm
TAPE 2
(B1)x2
Ø2 x 9mm
Pinch Roller
(C1)x1
FF/REW
Belt
(D2)x1
Figure 15-2
Pull
<B>
Figure 15-3
Motor
<A>
TAPE 2
Main Belt
(D1)x1
Pinch
Roller
Pawl
Motor
TAPE 1
Main Belt
(E1)x1
– 15 –
Main Belt
(D1)x1
Main Belt
(E1)x1
Figure 15-4Figure 15-5
TAPE 1
FF/REW
Belt
(E2)x1
CD-DD4500
CD MECHANISM SECTION
Perform steps 1, 2, 3, 12, 13, 14 and 15 of the disassembly
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 16-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
2. Remove the drive belt (A2) x 1 pc.
How to remove the pickup (See Fig. 16-2)
1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2) x 1 pc.
2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4).
3. Remove the pickup.
Note
After removing the connector for the optical pickup from the
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from
electrostatic damage.
Slide
Chassis
(B3) x 2
ø2.6 x 6mm
Loading Motor
(A1) x 2
Figure 16-1
Stop Washer
(B1) x 1
Pulley
Drive Belt
(A2) x 1
Loading
Motor PWB
(A1) x 1
(A1) x 2
Loading
Motor
Shaft
(B4) x 1
Pickup
CD Mechanism
Gear
(B2) x 1
Figure 16-2
– 16 –
ADJUSTMENT
CD-DD4500
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
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
Tape 2
• Tape Speed
Test Tape
Normal MTT-111 Variable 3,000 ± 30 Hz Speaker
speed Resistor in Terminal
Adjusting
Point
motor. (Load
Specified
Value
Instrument
Connection
resistance:
6 ohms)
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor
Figure 17-1
• FM mute level adjustment
FM signal oscillator Frequency 1 kHz, 22.5 kHz
Frequency
Adjusting
method
98.0 MHz 26 dB(EMF) VR351 Input: CNP301
CNP301
FM signal oscillator
Adjusting
object
UNIT
Adjusting object
Output: Speaker
Terminal
Speaker
Terminal
Electronic
Voltmeter
Figure 17-2 FM Mute Level
• Erasing the registered broadcast station
When the power is off, press and hold the TUNER (BAND)
button and the X-BASS button, and then press the POWER
button.
All the registered stations are erased.
• Setting the Test Mode
While holding down the MEMORY/SET button and the XBASS button, press the POWER button. Frequencies are
rewritten in memory as shown in table 17. Call them using the
VOLUMN knob of tuner circuit adjustment and check.
Note that once you reinitialize the settings, the frequencies
recorded by users will be changed.
Preset No. Frequency
P01 87.5 MHz P06 530 kHz
P02 108.0 MHz P07 1,720 kHz
P03 90.0 MHz P08 600 kHz
P04 106.0 MHz P09 1,400 kHz
P05 98.0 MHz P10 990 kHz
Preset No.
Frequency
Table 17
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM adjustment and confirmation
AM signal oscillator Frequency 400 Hz, 30 %, AM modulation
Adjusting item
IF Adjust the indication of Set IF wafeform
Frequency cover fL: T306 (530 kHz) fL: 1.3 ± 0.1 V
(VT line voltage of Adjust the indication fH: 8.5 ± 1.3 V
TP301) of set to 530 kHz. (Only confirmation)
Tracking fL: T302 (990 kHz) Set the output of
Adjusting object
T351 set to 1,720 kHz.
fH: (1,720 kHz)
Adjusting
method
450 kHz to maximum.
speaker terminal
to maximum.
AM signal oscillator
– 17 –
AM Loop Antenna
Loop Antenna
IF : Speaker Terminal
Frequency cover: TP301
UNIT
Figure 17-3 AM IF
Electronic
Voltmeter
GND
CD-DD4500
MAIN PWB
CNP301
FM/AM LOOP
ANTENNA
R345
TP301
FM MUTE
LEVEL
Figure 18-1 ADJUSTMENT POINTS
CD SECTION
• Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different PWBs and pickups
can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.
Items adjusted automatically
(1) Offset adjustment (The offset voltage between the head
amplifier output and the VREF reference voltage is
compensated inside the IC.)
* Focus offset adjustment
* Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing
Fig.18-2 EFBL)
(3) Gain adjustment (The gain is compensated inside the IC
so that the loop gain at the gain crossover frequency will
be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
FE301
T351
AM IF
VR351
R350
T302
AM
TRACKING fL
AM BAND
COVERAGE fL
T306
TP302
CH1=500 mV
DC 10:1
FDO
TE
EFBL
T
CH2=200 mV
DC 10:1
CH2 : 0.000 V
CH3 : 0.00 V
CH4 : 0.00 V
Stopped
T
1
3
2
Smoothing : ON CH1 : 0.000 V
BW : FULL
CH3=1 V
DC 10:1
=Record Length=
Main : 100 K
Zoom : 2 k
Figure 18-2
1999/04/05 20:26:47
500 ms/div
(500 ms/div)
NORM:20 kS/s
CH2
v/DIV
200 mV
=Trigger==Filter= =Offset=
Mode : SINGLE
Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
– 18 –
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.
CD-DD4500
IL isn't done
<<MEMORY>>
key input.
Adjustment result
automatically will
display as below.
for each 2 sec :
a) "FOFF_XX"
b) "TOFF_XX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"
explanation:
a) Focus off set ="FOFF_XX"
b) Tracking off set ="TOFF_XX"
c) Tracking balance ="TBAL_XX"
d) Tracking Gain ="TGAN_XX"
f) Focus Gain ="FGAN_XX"
g) RF level shift ="RFLS_XX"
VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
<<PLAY>> key input.
Do TOC IL. Do normal play.
When these following key is input
into PLAY key, track number can
be appoint directly.
<< 1>> key: Track 4
<< 2>> key: Track 9
<< 3>> key: Track 15
<<STOP>> key input.
STOP
<<MEMORY>> key input.
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
Tracking ON play from
that specific point.
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"
<<STOP>> key input.
STOP
Sliding the PICKUP with
<<
>>, << >> button
must only be in STOP mode.
– 19 –
CD-DD4500
Standard Specification of Stereo System Error Message Display Contents
Error Contents DISPLAY Notes
Output while Device Protection Operation. TIMER LED While in Protect Circuit Operate.
FLASHING Over Current Detection.
DC Detection.
TAPE Mechanism Error. 'ER-TA**' 00: Tape Mechanism Error.
01: Initial Error.
02:
03:
CD/VCD Pickup Mechanism Error. 'ER-CD**' 00: Pickup Mechanism Error.
01: PU-IN SW Detection NG.
02:
03:
04:
CD Changer Mechanism Error. 'ER-CD**' 10: Changer Error.
11: Initial Error.
12:
13:
Tray Error. 'ET-CD**' 20: Tray Error.
21:
22:
23:
Focus Not Match. 'NO DISC'
IL Time Over. 'NOT READ'
TUN PLL Unlock. 'ER-TU**' 00: TUN Error.
01: PLL Unlock.
02:
03:
– 20 –
TO MAIN SECTION
TO DISPLAY SECTION
SW1
OPEN/
CLOSE
SW2
CLAMP
SW3
DISC
NUMBER
T/T UP DOWN
M
CD-DD4500
M3
LOADING
XL1
33.8688 MHz
61
62
63
64
65
66
48
49
+3.3V
CNP7
CE
CLK
DI
DO
WRQ
RES
XOUT
XIN
R-CH
RFVDD
5
7
AGND
VVDD
18
DGND
L-CH
XVDD
ADAVDD
47
+5V (+B5)
+5V (+B5)
615432
42
LCHO
WRQ
4543 44 25 70
LVSS
RVSS
RCHO
IC1
LC78645E
CD SERVO
RVDD
41
LVDD
46
FIN1
FIN2
3271689
Q3
71
CONT2
CONT3
CONT4
CONT5
CONT5
SLDO
SPDO
LDD
LDS
TIN2
TIN1
80
79
987
10
FD0
TD0
CNP8
75
69
57
56
55
51
50
40
39
37
28
19
26
23
22
21
20
OC. DISC NO
CLAMP SW
CD RES
CLK
DI
DO
CE
DRF
54
+5V
316452
316452
316452
BI7
2
1
17 25
1
2
18
VCC1
40
VCC4
24
VCC2
23
VCC3
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
CNS4
CNP4
IC2
BI4
41 8339
42
35
29
22
21
14
8
+3.3V
CONSTANT
VOLTAGE
+5V
PICK UP UNIT
Q2
LASER
DRIVER
+3.3V
Q1
FOCUS COIL
TRACKING COIL
4765
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
M
M
168226 27
15
SW4
PICK UP
IN
Figure 21 BLOCK DIAGRAM (1/3)
– 21 –
CD-DD4500
0
5
R
C
M
E
C
M
F
AM
FM
CNP301
8
6 7
AM TRACKING
FE301
FM FRONTEND
5
4 32
VCC
+B4
10.7 MHz
450 kHz
CF303
1
T351
CF352
AM IF
AM MIX
21
IC303
LA1832S
FM IF DET./FM MPX./AM IF
AM RF IN
AM OSC IN
21
23
7
FM/AM
OUT
18
4
AM IF
CF351
5
9
8
GND
FM+B
MPX IN
16
FM/AM
12
X351
456kHz
17
13
VCO
MO/ST
R
L
14
15
T303
JK601
VIDEO IN
AUX
T306
AM BAND
COVERAGE
FROM CD SECTION
11
14
9
16
10
15
CNP7
L
TUNER
R
L
AUX
R
L
TAPE
R
OPTICAL FIBER
IC601
VT
20
1
IC302
LC72131
PLL(TUNER)
+B4
IC501
Q360
+B5
3
2
L
4
21
R
SWITCHING
TORX178B
DATA LINK
+B4
23
LC75341
AUDIO PROCESSOR
VSS VDD
3
X352
4.5 MHz
OSC
FM
1
X501
22
7
12
2.2MHz
15
9
13
35
49
62
81
95
97
98
99
STEREO
CE
11
43
16
FM/AM
MO/ST
21
10
9
+B5
14
VCC
IC502
74VHC00F
INVERTOR
GND
7
+B5
53
71
VSS
VDD
VDD
VSS
VSS
VSS
VSS
VSSDL
IC504
VSSX
IX0443AW
DOLBY DECODER
XO
XI
CLK DODI
5
6
17
IC602
M62446FP
6-CH ELECTRONIC
11
13
15
12
6
8
9
SWIN
SR_IN
SL_IN
C_IN
R_IN
L_IN
GND_R
VOLUME
+B4
42
SW_OUT
DVDD
C_OUT
L_OUT
R_OUT
SL_OUT
SR_OUT
36
33
31
32
34
35
6
24
34
RX
CKO
14
18
22
47
VDD
AK4527BVQ
6-CH CODEC IC
37
4
9
39
16
32
IC505
DVSS
RIN+
LIN+
30
+B4
36
ROUT2
ROUT3
LOUT3
LOUT2
ROUT1
LOUT1
26
24
23
25
28
27
IC6
NJM4
BUFFE
4
3
2
5
6
I
NJ
BUFF
3
2
5
6
BUF
3
2
5
6
4
I
NJ
4
PLAYBACK
HEAD
TAPE 1
RECORD/
PLAYBACK HEAD
TAPE 2
L-CH
R-CH
L-CH
R-CH
REC
P.B.
AC BIAS
ERASE HEAD
+B4
1
BA3126N
3
SELECTOR
6
2
IC102
HEAD
5
9
7
4
8
BIAS OSC
Q128
L104
IC101
PLAYBACK AND RECORD
/PLAYBACK AMP.
L(T1)
1
R(T1)
24
2
L(T2)
R(T2)
23
L NF
3
R NF
L REC
R REC
REF
SWITCHING
Q101
SWITCHING
Q124
L103
22
6
T1/T2
9
REC
16
14
NOR/
15
HIGH
12
Q102
BIAS
Q126
POP REDUCE
Figure 22 BLOCK DIAGRAM (2/3)
T1/T2
H/N
19
+B4
13
4
PB
L
R
21
5
20
MUTING
7
REC
L
Q121
Q122
R
REC
18
8
L NF
R NF
17
10
ALC
TO IC181
MOTOR
DRIVER
+B3
Q102
TAPE 1
SOLENOID DRIVER
Q102
+B3
TAPE 2
SOLENOID DRIVER
Q102
+B3
TAPE
MECHANISM
ASS'Y
– 22 –
CD-DD4500
IC606
NJM4565M
BUFFER AMP
+B4
4
3
2
5
6
IC605
NJM4565M
BUFFER AMP
+B4 7 V
4
3
2
5
6
IC607
NJM4565M
BUFFER AMP
+B4
4
3
2
5
6
FL701
13
93
AVDD
PSEANA
3
IC703,IC704
KIA4558P
OPE AMP.
IC906
MUTE
Q906
Q907
R
10
18
6
9
–B1
D806
FL DISPLAY
14
92
5
14
4
15
L
IC901
15
STK40270N
POWER AMP.
1
R
L
+B2
D805
D881
D882
6
31
VF2
100
CE
28
29
CLK
30
DI
31
DO
1
+B4
IC907
KIA4558P
OPE AMP.
8
1
7
8
1
7
8
1
7
3
5
+B4
2
3
5
6
IC904
KIA4558P
OPE AMP.
HIGH PASS
FILTER
20ATT
Q401
Q402
Q407
+B3 M_+12V
+B4 A_+10V
8
+B5 5V
8
1
7
SYSTEM
MUTE
Q403
Q404
Q408
+B6 5V
1
7
MULILPEXER
SYSTEM
MUTE
Q917
3
13
5
12
IC905
TC4053BP
TRIPLE 2 CH
KIA7810AP
VOLTAGE
REGULATOR
-VF
VF2
VF1
IC850
CONSTANT VOLTAGE
+B6
TC4053BP
TRIPLE 2 CH
MULILPEXER
13
3
1
2
5
SYSTEM
4
14
13
IC401
1
STK40224
15
POWER AMP.
16
8
+B1
D802
D803
D804
IC851
KIA7805AP
CONSTANT VOLTAGE
REGULATOR
IC880
KIA7805AP
REGULATOR
29
19
Q701
Q702
Q703
Q704
Q705
Q706
87
86
IX0442AWZZ
SYSTEM MICRCOMPUTER
KEY
7
9
KEY
SW701-SW712
SW714-SW716
SW722-SW729
SW731-SW734
SYSTEM
MUTE
L
1
Q905
Q908
15
R
10
6
13
9
8
–B2
D801
F805
6.3A/125V
F806
2A/125V
F807
2A/125V
D884
D883
53
60
IC701
X1
16
XL701
4.194304MHz
IC902
STK40270N
POWER AMP.
9
8
L
R
F804
6.3A/125V
F802
4A/125V
F803
4A/125V
56
-VF
X2
17
13
SUB POWER TRANSFORMER
58
VF1
79
VLOAD
JOG_0
JOG_1
REMOCON
27
26
25
JOG
T801
T802
1
2
+B3
RY902
+B3
RY402
T.F.
3
REMOTE SENSOR
RY901
JOG701
VOLUME
6
L
R
10
MAIN POWER TRANSFORMER
+B3
+B3
LCK1
LCK2
ERSET
RX701
+B6
RY401
49
48
42
Q707
+B5
FAN MOTOR
DRIVER
Q423
F801
6.3A/125V
RY801
+B5
18
VDD
LCK
4 1
VSS
IC702
BU2092F
INPUT/OUTPUT
EXPANDER
+B5
18
VDD
LCK
41
VSS
IC181
BU2092F
INPUT/OUTPUT
EXPANDER
SOC901
SUBWOOFER
PRE OUT
M401
M
FAN MOTOR
+B3
M402
M
FAN MOTOR
SO901
SPEAKER
TERMINAL
SUBWOOFER
MAIN
JK701
HEADPHONES
SOC401
SPEAKER JACK
SURROUND
CENTER
AC POWER
L802
SUPPLY CORD
LINE
FILTER
AC120 V/60 Hz
Figure 23 BLOCK DIAGRAM (3/3)
– 23 –
CD-DD4500
4
6
3
S
D
N
F
E
B
A
S
D
T
R41
A
PICKUP UNIT
B
C
TR+
D
E
F
FO+
FO–
TR–
CD MOTOR PWB-G
M1
SPINDLE
MOTOR
M2
SLED
MOTOR
SW4
PICKUP IN
M
M
GND
+
–
+
–
VREF
SPIN
SLIDE
PU-IN
VCC
TR–
TR+
FO+
FO–
PD
VR
LD
CD SERVO PWB-C
R7
47
CNS1A
CNS1B
7
7
7
6
E
5
A
4
B
3
F
2
C
1
1
2
3
4
5
6
7
8
1
2
3
4
5
6
6
5
4
3
2
1
CNS2B
1
2
3
4
5
6
7
8
CNS3B
1
2
3
4
5
6
6
5
4
3
2
1
1
2
3
4
5
6
7
8
CNS3A
6
5
4
3
2
1
CNS2A
6
5
4
3
7
7
6
6
5
5
4
4
3
3
2
2
1
1
1
2
3
4
5
6
7
8
2
1
VCC
VREF
E
A
B
F
C
CNP1
CNP2
SP+
SP–
SL+
SL–
PUIN
GND
CNP3
R6 22K
R5 8.2K
R4 8.2K
R3 22K
TR–
TR+
FO+
FO–
GND
PD
VR
LD
R1
C1
8.2K
47/25
100/10
C40
R2
C39
220/6.3
MUTE
8.2K
C2
C38
0.01
0.01
+
–
VREF
+
–
12K
R44
STANDBY
+
–
+
–
+
–
+
–
SLDO
VCC
+
+
–
–
R9
C3
3.3
Q1
KTA1266 GR
R65
3.3K
SL–
SL+
47/25
C49
C4
0.001
CT1
0.001
CT2
IC2
M63001FP
47/25
0.001
101112131415161718192021
R10
27K
9
GND
8
100/10
C5
0.047(ML)
C6
0.1
R12
330
C50
22P(CH)
C9
0.22/50
100P
TR–
TR+
6
7
C8
0.0047
C11
C12
2
1
FO–
5
10/50
FO+
C10
R13
R11
1K
10K
10
11
12
13
14
15
16
17
18
19
20
FD
1
2
3
4
5
6
7
8
9
FIN1
TDO
R14
R42
1.2K
LDS
LDD
SLCO
SLCIS
EFMIN
RF
RFVD
RSVS
TP1
FIN2
TIN1
TIN2
VREF
REF1
FE
TEC
TE
RFMO
JITTC
ADAVD
ADAVS
21 22 2
1K
R15
TO
1234
787980
1K
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 49.
1
23456
Figure 24 SCHEMATIC DIAGRAM (1/14)
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
VCC2
SPO
SP+
SP–
VCC3
C41
100/10
M–
– 24 –
M+
VCC4
LD_M–
LD_M+
CD-DD4500
VCC4
C34 100P
C33 100P
C32 100P
C30 100P
C28 100P
C27 0.022
C36
0.1
C37
R42
1.2K
12K
R41
LDS
LDD
10K
R11
1
SLCO
SLCIST
2
3
4
5
6
7
8
9
10
10
11
0/50
12
13
14
15
16
17
18
19
20
1K
R14
FD
40 41 42
LD_M–
EFMIN
RF
RFVDD
RSVSS
FIN1 A
TP1
FIN2 B
TIN1 E
TIN2 F
VREF
REF1
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
VVDD
5
4
6
GPDAC
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
1K
123
1K
R15
TO
LD_M+
R16
R17
1K
1K
C35
2.2/50
0.047
680
R40
R39
VVSS
PDO2
PDO1
PCKIST
7
FR
IC1
LC78645NE
CD SERVO
21
FDO
22
SPDO
SLDO
23
DEFECT
SBCK/FG
CONT5
CONT4
1K
R18
R20
10K
R46
470
D2
D1SS133
3
1
KRC102 M
(ML)
8
680
VSS
CONT2
CONT3
MON11
FSEQ
V/1P
2
Q3
FOCUS/TRACKING/
SPIN/SLED DRIVER
R49
DO
DRF
DATACK
VDD5
VRES
VWRQ
ASDFIN
3
ASDACK
ASLRCK
IGMOUT
FSX/16MIN
42
LCHO
41
LVDD
VSS
MON15
MON14
MON13
MON12
C13
R45
470
D1
D1SS133
IC2
M63001FP
1
DI
DATA
LRSY
EFLG
C2F
XVSS
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
VDD
R21
0.022
CL
616263646566676869707172737475767778787980
TEST
DOUT
CE
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
9
C14
1K
R31
12
R43
220
100/10
R38 1K
R37 1K
R36 1K
R35 1K
R34 1K
R33 1K
R32 1K
11
10
C17
0.022
DZ3.3BSB
C44
0.001
R29
2.2K
R28
2.2K
C20
15P
XL1
33.8688 MHz
ZD1
C16
10/16
C19
15P
R22
100
L1
CNS606
FROM
P26 6-H
CNS7
1
2
TO
SW3
BI703
9
8
7
6
5
4
3
2
1
FROM
DISPLAY
PWB
P29 7-H
CNS703
CNP501
DOLBY PWB
SW1
CLAMP
DISC NO.
M3 T/T
UP DOWN
LOADING
1
2
3
4
5
6
7
8
9
MAIN PWB
P32 1-B
SW2
1
WRQ
2
DRF
CE
3
4
DO
DI
5
CL
R23
CNP8
220
6
7
8
9
1
DGND
+5V
2
+5V
3
CNP7
BI7
1
DIGITAL
2
OUT
BI4
OPEN/CLOSE
1
2
3
4
5
M
6
DGND
CD RES
CLAMP SW
O/C,
DISC NO
C51
0.022
0.82µH
C48
0.022
Q2
KTC3203 Y
R47
100
C18
100/10
ZD2
DZ3.9BDB
R30
8.2K
1
1
2
2
3
R19
15K
CNP4
3
4
4
5
5
6
6
CNS4
CD LOADING
MOTOR PWB-E
• The numbers 1 to 12 are waveform numbers shown in page 50.
7
8 9 10 11 12
Figure 25 SCHEMATIC DIAGRAM (2/14)
– 25 –
CD-DD4500
L
R
O
Y
+
C
6
4
E
U
8
7
4
6
5
A
B
C
D
E
F
G
H
TO
TUNER PWB
P37 11-H
L-CH
JK601
VIDEO
VIDEO/
IN
AUX IN
R-CH
CHASIS
L-CH R-CH
TAPE 1
PLAYBACK HEAD
ERASE HEAD
R-CH
L-CH
TAPE 2
RECORD/
PLAYBACK HEAD
MAIN PWB-A (1/2)
DO
1
CE
2
DI
3
CLK
4
TUN_SM
5
D_GND
6
A_+10V
TUN_L
A_GND
TUN_R
C600
0.022
R628
D601
DS1SS133
D602
DS1SS133
CNP101
1
2
3
CNP102
1
2
3
4
5
6
7
R627
39K
39K
+B
C629
390P
390P
C630
C102
560P
C101
560P
C106
180P(CH)
(CH)
R625
4.7K
4.7K
(CH)
R626
HEAD SELECTOR
R101
C105
180P
R113
7
8
9
10
T1_R
1
2
A_GND
3
T1_L
M_GND
1
ERASE
2
T2_R2
3
A_GND
4
T2_R1
5
T2_L1
6
T2_L2
BA3126N
1
2
3
4
5
Q101
KRC104 M
2.2K
R103
C103
10/16
R102
1K
1K
15K
+B
IC102
2.2K
R106
R107
2
1K
1
9
8
7
R105
100
6
3
Q102
KTC3199 GR
C602
R110
0.022
C603
33K
C108
100P
(CH)
R605
560P
3.9K
C601
100/16
C623
10/50
C107
C626
100P
(CH)
C604
100P(CH)
C605
0.1
C609
0.0027
C613
1/50
C617
1/50
C111
180P
(CH)
560P
1K
R602
R104
5.6K
R
L
180P
C112
R117
CLK DICE
1K
R601
C607
0.1
C611
1/50
C615
1/50
C619
1/50
+B
R114
15K
R118
1K
(CH)
24
123
1K
FM SIGNAL
PLAYBACK SIGNAL
VIDEO IN SIGNAL
RECORD SIGNAL
IC601
LC75341
AUDIO PROCESSOR
1K
R603
IC601
LC75341
1
2
3
4
5
6
7
8
9
10
11
23
C113
180P
(CH)
C114
180P
(CH)
DI
CE
VSS
LOUT
LBASS
LTRE
LIN
LSEL0
L4
L3
L2
L1
R120
C116
C115
R119
24
CLK
+B
23
VDD
C625
22/50
22
VREF
C606
21
ROUT
RBASS
RTRE
RSEL0
AUX
DECK
TUNER
DVD
56
C124
0.0015
100/25
C118
0.033
R122
22
100K
112K
–
+
Hich=T1
+
–
112K
R121
100K
C117
0.033
100/25
56
C123
0.0015
PLAYBACK AND RECORD/
0.1
C608
0.1
20
C610
0.0027
19
C612
18
RIN
1/50
C614
1/50
17
C616
1/50
16
R4
C618
1/50
15
R3
C620
1/50
14
R2
R1
13 12
R
6.8K
R132
68K
R134
5.6K
R126
1/50
C122
R136
C120
560P
R124
3.9K
19
20
21
IC101
AN7345K
4
6
5
R123
3.9K
C119
560P
1/50
C121
C127
0.022
C128
5.6K
R125
6.8K
R131
IC101
AN7345K
PLAYBACK AMP.
5.6K
R138
3.3/50
R135
R137
6.8K
18
7
6.8K
5.6K
FFC602
C624
10/50
R606
3.9K
82K
R156
KTC3199 GR
0V
0V
R140
C132
270P(CH)
17
8
C131
270P(CH)
R139
DOLBY PWB
15
1
+B
Q122
0.7V
R154
10K
100
R142
C140
1.5K
C136
0.022
C134
22/25
16
–
56K
+
Hich=CHROME
+
56K
–
9
C133
22/25
100
R141
C135
0.022
1.5K
P33 12-D
0.0033
C142
15
10
C141
47/25
R145
10K
C139
0.0033
TO
R153
10K
Q121
KTC3199 GR
10K
R146
47/25
C145
14
Nor/CrO2
ALC
ALC
11
0.7V
22/25
RIPPLE
CNP502
+B
R158
13
Vcc
GND
12
220
CNP602
C146
220/10
0V
0V
1 2 3 4 5 7 8 9
L_OUT
R_OUT
A_GND
A_GND
+B
R109
270K
R108
270K
82K
R157
47K
11.7V
R162
11.6V
Q124
0V
2SA1015 GR
4.7K
R164
L103
100µH
82
2
R160
11.6V
0V
47K
R167
0V
0V
22K
R166
C150
0.0082(PP)
C154
0.047(ML)
(ML)
C151
0.039
R_F
1
0V
Q128
R168
L104
330µH
1
15
6
L_F
A_GND
Q126
KRC104 M
0V
3
KTC3203 Y
4.7
C152
A_GND
R645
+B
47/25
10
SW
A_GND
270K
R646
270K
T_BIAS
T1/T2
REC/PLAY
C186
0.022
11 12 13 15
14
R_S
A_GND
A_GND
CENTER
C187
0.022
D184
DS1SS133
D183
DS1SS133
D181
DS1SS133
D182
DS1SS133
CNS606
TO
CD SERVO
PWB
P25 12-D
1
12
12 11
L_S
D_GND
+B
C190
0.022
C189
0.022
+B
R177
10K
R178
FAN_CTL
–11DB_ATT
DD_RST
10K
R180
+B
CD_GND
BI606
1
1
CNP7
10K
9 8 7 6 4 3 2
CK
DIO
D_5V
DDAC
A_10V
+B
R665
10K
R666
10K
R667 10K
C645 22/50
C634 22/50
R668 10K
C654 22/50
C653
22/50
C631
22/50
10K
10K
R631
R632
+B
INPUT/OUTP
R189
10K
1K
R176
R190 1K
R191 1K
R192
1K
R193 100
NC
R194 1K
R195 1K
+B
10K
R179
4.7K
R196
C185
+B
+B
+B
D604 DS1SS133
+B
A_+B
CD_+B
DD_CLK
3
2
1 3 4 5 7 86 2
3
2
1
36
CNP503
DOLB
5 10
LOCK
DDCE
DDLAT
RESET
DD_STATUS
1
2
3
4
C633
AVDD
5
22/50
SWIN
6
C646
S_GND
7
22/50
SR_IN
8
SL_IN
9
C_GND
10
C_IN
11
GND_R
12
R_IN
13
GND
14
C632
L_IN
15
22/50
BYPASS_
16
C196
BYPASS_
17
0.0082
L_TRE
18
L_BASS3
19
C197
0.015
L_BASS2
20
L_BASS1
21
0.33
C194
M62
6-CH EL
VOL
IC181
BU2092F
EXPANDER
10
Q5
9
Q4
11
Q6
8
Q3
12
Q7
Q2
7
13
Q8
6
Q1
14
Q9
Q0
5
15
Q10
4
LCK
16
Q11
3
CLOCK
__
OE
2
17
DATA
18
VDD
1
VSS
47/16
C184
0.022
+B
DD_LP
DD_ACK
DD_DIO
DD_LOCK
DD_CS
T
P33
1
-B
A-13V
IC
R18
R18
R18
R18
R18
C183
100P
(CH)
C109
47/16
3.9K
R133
TUN_SM
DD_STATU S
• NOTES ON SCHEMATIC DIAGRAM can be found on page 49.
1
23456
Figure 26 SCHEMATIC DIAGRAM (3/14)
– 26 –
_
_
R179
1
9 8 7 6 4 3 2
10
CK
DIO
DDAC
A_10V
+B
C633
R665
22/50
10K
R666
C646
10K
22/50
R667 10K
C645 22/50
C634 22/50
R668 10K
C654 22/50
C653
22/50
C631
22/50
10K
10K
R631
R632
+B
INPUT/OUTPUT
177
0K
R189
10K
1K
R176
10
R190 1K
11
R191 1K
12
R192
CTL
13
1K
ATT
14
R193 100
NC
15
R194 1K
16
R195 1K
17
+B
18
10K
4.7K
R196
C185
+B
+B
D604 DS1SS133
+B
A_+B
DD_CLK
3
2
1 3 4 5 7 8
3
2
1
NP7
TO
CNP503
DOLBY PWB
P33 12-B
1 5
CNP607
-B
LOCK
DDCE
A-13V
DDLAT
RESET
DD_STATUS
1
2
3
4
AVDD
5
SWIN
6
SW_OUT
S_GND
7
SR_OUT
SR_IN
8
SL_OUT
SL_IN
9
C_GND
10
C_IN
11
GND_R
12
R_IN
13
GND
14
C632
L_IN
15
22/50
BYPASS_R
16
C196
BYPASS_L
17
0.0082
L_TRE
18
R_BASS3
L_BASS3
19
C197
0.015
0.33
C194
6-CH ELECTRONIC
IC181
BU2092F
L_BASS2
20
21
IC602
M62446FP
VOLUME
R_BASS2
R_BASS1L_BASS1
EXPANDER
R188 1K
Q4
Q3
Q2
Q1
Q0
LCK
VSS
9
8
7
6
5
4
3
2
1
+B
DD_LOCK
DD_CS
R187 1K
R186 100
R185 100
R184 100
C183
100P
(CH)
C109
47/16
3.9K
R133
+B
TUN_SM
DD_STATU S
6 2
SW-MUTE
RLY2/6
SW-SPRLY
S-SPRLY
C-SPRLY
R183 1K
R182 1K
R181 1K
C182
A_10V
9
Q5
Q6
Q7
Q8
Q9
Q10
Q11
OE
VDD
47/16
DD_ACK
DD_DIO
__
C184
CLOCK
DATA
0.022
DD_LP
12
FFC607
1
CENTER
-B
CLK
VOL_LAT
DI
SW
R643 1K
C644
0.022
42
41
40
39
C188
38
0.022
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
C195
0.33
LCK2
CLK
DI
(CH)
100P
-B
R604
10K
VOL_LAT
S_MUTE
KARA_LAT
14
R642 1K
C643 100P(CH)
C638
22/50
C640
22/50
C639
22/50
C637
22/50
C636
22/50
C635
22/50
C655
3.3/50
R63510K
C656
Q601 KTA1271 Y
3.3/50
C199
0.0082
C198
0.015
C650
47/25
ZD601 DZ7.5BSC
C649
47/25
Q602
KTC3203 Y
ZD602
DZ7.5BSC
+B
D_GND
-B
R175 10K
R174 10K
R173 4.7K
R172 4.7K
R171 4.7K
+B
SWD_+5V
-20DB_ATT
SPEANA
R641 1K
C641 100P(CH)
C642 100P(CH)
D186
D185
DS1SS133
RS
LS
R63610K
R63710K
R63810K
R64010K
R634
C648
R633
C647
+B
5V
+B
+B
CLKDIDO
AT_8V
DS1SS133
R-CH
L-CH
R63910K
-B
1K
47/25
1K
47/25
DIST_OUT
CE
-B
SPAN
LCK2
R650
1K
+B
F_RLY
R649
A_GND
A_+10
–13V
R858
1K
1/50
C627
+B
SP_DET
TUN_FNC
R644
10
DVDD
CLK
DATA
LATCH
D_GND
A_GND
C_OUT
R_OUT
L_OUT
AVSS
CL1
CL2
CR1
CR2
R_TRE
C181
(CH)
100P
Q103
KTC3199 GR
C699 220/6.3
-B
–15V
HP_SW/MIC_IN
10 11 12 13 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
1K
RS-CH
L-CH
R-CH
R857
DS1SS133
R856
1K
M_12V
+B
1K
D852
P_IN
+B
+B+B
DS1SS133
D851
DS1SS133
D_GND
AC_RLY
CCH
C672
C671
47/25
SW-CH
C686
C685
R686
1K
L-CH
C658
C657
+B
+B
+5V_CD
+5V_A
SWD_5V
D853
C857
0.047
M_GND
+B
+B
–VF
VF2
UN_SW 5V
C675
0.0082
R671
(ML)
1K
C674
0.022
47/25
R679
3.9K
R680
1.2K
C673
0.022
C676
R672
10/16
1K
R685
LS-CH
1K
C689
10/16
47/25
C688
0.022
R693
3.9K
R694
3.9K
C690
C687
0.022
47/25
10/16
C694
2.2/50
R651
1K
C661
10/16
C660
47/25
0.022
R659
3.9K
R660
3.9K
R656
C659
0.022
47/25
R-CH
C662
R652
10/16
1K
+B
-B
M_12V
+B
CONSTANT VOLTAGE REGULATOR
+5V
10K
+B
22K
C856
ZD850
DZ2.4BSB
22K
R853
R855
KTC2026 Y
12.3 V
220/25
C855
C860
Q850
23.5 V
13 V
47/25
(ML)
A_+10V
A_GND
D_GND
CD_GND
R854
VOLTAGE REGULATOR
VF1
CNP601
36
FFC701
C679
2.2/50
C677
100P
R673
(CH)
32 1
1K
4
R675
100K
R676
100K
8
R674
5
C678
1K
100P
(CH)
C680
2.2/50
C693
2.2/50
C691
100P
(CH)
R687
3
1K
4
R689
100K
R690
100K
8
5
R688
1K
R692
15K
C665
2.2/50
R653
3
1K
4
R655
100K
100K
8
R654
1K
C666
2.2/50
NJM4565M
BUFFER AMP.
IC851
KIA7805AP
5 V
+B
C859
0.047
(ML)
47/25
560
R852
10 V
31
2
C854
0.047
(ML)
IC850
KIA7810AP
R677
1.8K
6
R678
15K
R691
15K
2
C692
6
100P(CH)
R657
15K
C663
100P
(CH)
21
C664
65
100P
(CH)
R658
15K
IC605
12.1 V
31
2
0 V
+B
R850
3.3
(1/2W)
+B
24.1 V
C853
0 V
0.047
(ML)
R681
3.3K
7
R682
3.3K
R695
3.3K
1
7
R696
3.3K
R661
3.3K
7
R662
3.3K
C681
1/50
R683
100K
BUFFER AMP.
100K
R684
C682
1/50
C695
1/50
R697
100K
R698
BUFFER AMP.
C696
1/50
C667
1/50
R663
100K
100K
R664
C668
1/50
RP851
(ML)
C858
0.047
C851
2200/35
SP_DET
P_IN
AC_RLY
IC606
NJM4565M
C893
0.001
Q893
KTC3199 GR
R896
1K
100K
IC607
NJM4565M
R893
1K
Q891
KTC3199 GR
R891
2.2K
C891
0.001
R892
2.2K
C892
0.001
Q892
KTC3199 GR
R894
C862
1K
1/50
R890
22K
R860
10K
+B
C852
4700/16
R895
2.2K
-B
R862
0 V
KTC2026 Y
+B
10K
Q859
0 V
Q851
+B
+B+B
+B
KRA107 M
R861
10K
D855
DS1SS133
5 V
CD-DD4500
CNP603
LS
1
A_GND
2
RS
3
CENTER
S-SPRLY
C-SPRLY
SW
A_GND
R-CH
A_GND
L-CH
A_+10
+B
+5V
+B
M_GND
–13V
-B
FAN_CTL
F_RLY
SW-SPRLY
HP_SW/MIC_IN
M_12V
+B
S_MUTE
–11DB_ATT
SP_DET
RLY2/6
SW-MUTE
BI850
+18V
UN_SW 5V
AC_RLY
D859
DS1SS133
D860
DS1SS133
C877
0.022
+18V
GND
GND
P_IN
–VF
VF2
VF1
D_GND
+9V
+B
4
5
6
CNS604
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
10
11
12
CHASIS
CNS407
AMP. B PWB
P31 10-H
CNP901
CNS850
1
2
3
4
5
6
7
8
9
10
11
12
FROM
19
18
17
16
15
14
13
12
11
10
AMP. A PWB
9
8
7
6
5
4
3
2
1
CNP807
POWER PWB
P30 3-H
TO
P34 1-D
TO
36
TO
DISPLAY PWB
CNP701
P28 1-D
7
8 9 10 11 12
1
Figure 27 SCHEMATIC DIAGRAM (4/14)
– 27 –
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