Sharp CDCH-1000 Service manual

CD-CH1000

SERVICE MANUAL

No. S8070CDCH1000

AUDIO TOWER SYSTEM

MODEL

CD-CH1000 Audio Tower System consisting of CD-CH1000 (main
unit) and CP-RW5000 (speaker system).

• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.

CD-CH1000

CONTENTS

Page

IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)...................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................ 2

NAMES OF PARTS .......................................................................................................................................................... 3

OPERATION MANUAL..................................................................................................................................................... 5

DISASSEMBLY................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 11

CD CHANGER MECHANISM MAIN BASE PARTS ASSEMBLING/ADJUSTING PROCEDURE ................................. 13

ADJUSTMENT................................................................................................................................................................ 20

TEST MODE ................................................................................................................................................................... 21

ERROR MESSAGE LIST................................................................................................................................................ 24

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 25

TYPES OF TRANSISTOR AND LED.............................................................................................................................. 25

BLOCK DIAGRAM .......................................................................................................................................................... 26

SCHEMATIC DIAGRAM ................................................................................................................................................. 32

WIRING SIDE OF P.W.BOARD...................................................................................................................................... 43

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 52

TROUBLESHOOTING .................................................................................................................................................... 53

FUNCTION TABLE OF IC .............................................................................................................................................. 55

LCD DISPLAY................................................................................................................................................................. 62

PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)

SHARP CORPORATION

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

CD-CH1000

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

IMPORT ANT SER VICE 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

0.15µF

TEST PROBE

TO EXPOSED
METAL PARTS

CONNECT TO
KNOWN EARTH
GROUND

All tests 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-CH1000

■ General

Power source AC 120 V, 60 Hz
Power consumption 175 W
Dimensions Width: 7-7/8" (200 mm)

Height: 13-7/8" (352 mm)
Depth: 14-7/8" (377 mm)

Weight 21.4 lbs. (9.7 kg)

■ Amplifier

Output power 100 watts minimum RMS per channel into 6 ohms from

Output terminals Speakers: 6 ohms

Input terminals Auxiliary: 500 mV/47 kohms

60 Hz to 20 kHz, 10 % total harmonic distortion
Subwoofer: 60 W/ch

(60 Hz - 200 Hz, 6 ohms, 10 % T.H.D.)
Main: 40 W/ch
(200 Hz - 20 kHz, 6 ohms, 10 % T.H.D.)

Headphones: 16-50 ohms (recommended; 32 ohms)

■ CD player

Type 6-disc multi-play compact disc changer player
Signal readout Non-contact, 3-beam semiconductor laser pickup
D/A converter
Frequency response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)

1-bit D/A converter

■ Cassette deck

Frequency response 50-14,000 Hz (Normal tape)
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.3 % (WRMS)

■ Tuner

Frequency range FM: 87.5-108.0 MHz

AM: 530-1,720 kHz

CP-RW5000

Type 3-way type speaker system

2" (5 cm) Tweeter
5-1/4" (13 cm) Woofer
5-1/4" (13 cm) Subwoofer

Maximum input power (Total)
Rated input power (Total) 100 W
Impedance 6 ohms
Dimensions Width: 8-1/4" (210 mm)

Weight 11.2 lbs. (5.1 kg)/each

200 W

Height: 15-7/16" (392 mm)
Depth: 13-9/16" (345 mm)

– 2 –

Specifications for this model are subject to change
without prior notice.

CD-CH1000

1
2
3
4
5
6
7
8

22
23
24
25

26
27

14 15 16

17

19

21

18

20

9
10
11
12
13

3

4

1

2

1
2
3
4
5
6
7

8 9

10 11 12 13 14

15
16
17
18

CD-CH1000

■ Front panel

01.

Cassette Compartment

02.

Volume Up/Demo Button

03.

Volume Down Button

04.

Timer Set Indicator

05.

Power Button

06.

CD Direct Play Buttons (with Indicator)/
CD Eject Buttons

07.

Disc Trays

08.

Headphone Jack

09.

Control Panel Open/Close Button

10.

CD Play Mode Select Button

11.

Equalizer Mode Select Button

12.

Extra Bass Button

13.

Display Button

14.

Menu Button

15.

Jog Dial

16.

Enter Button

17.

CD Button

18.

Tape Button

19.

Tuner (Band) Button

20.

Auxiliary Button

21.

Tape Record Pause Button

22.

Clear Button

23.

Memory Button

24.

Tuning Down/
Fast Reverse Button (with Indicator)

25.

Stop Button (with Indicator)

26.

Tuning Up/
Fast Forward Button (with Indicator)

27.

CD Play or Pause/
Tape Play Button (with Indicator)

NAMES OF PARTS

■ Multi-function LCD display

01.

Function Indicator

02.

Extra Bass Indicator

03.

04.

05.

06.

07.

08.

09.

10.

11.

12.

13.

14.

15.

16.

17.

18.

■ Rear panel

01.

02.

03.

04.

Random Play Indicator
Memory Indicator
Total Indicator
Remain Indicator
Timer Play Indicator
CD Indicators
Cassette Indicator
Sleep Indicator
Timer Recording Indicator
All Disc Play Indicator
Level Meter
FM Stereo Mode Indicator
CD Repeat Indicator
CD Pause Indicator
CD Play Indicator
FM Stereo Indicator

FM/AM Antenna Jack
Auxiliary Input Jacks
Speaker Terminals
AC Power Cord

– 3 –

CD-CH1000

CD-CH1000

■ Remote control

01.

Remote Control Transmitter

02.

Tuner (Band) Button

03.

CD Button

04.

Auxiliary Button

05.

CD Direct Play Buttons

06.

Memory Button

07.

Clear Button

08.

Fast Reverse/Preset Down Button

09.

Enter Button

10.

Stop Button

11.

Menu Button

12.

Control Panel Open/Close Button

13.

Tape Button

14.

Power Button

15.

Time Button

16.

FM Stereo Mode Button

17.

Display Button

18.

Dimmer Button

19.

CD Play Mode Select Button

20.

Fast Forward/Preset Up Button

21.

CD Play or Pause/Tape Play Button

22.

Tape Record Pause Button

23.

Equalizer Mode Select Button

24.

Extra Bass Button

25.

Volume Up or Down Buttons

10
11
12

1
2
3
4
5
6
7
8
9

13
14
15
16
17
18
19
20
21
22
23
24
25

CP-RW5000

01.

Tweeter

02.

Woofer

03.

Bass Reflex Duct

4.

Subwoofer

5.

Subwoofer Terminals

6.

Main Speaker Terminals

1

2

3

4

5

6

– 4 –

OPERATION MANUAL

To confirm the time display:

Press the DISPLAY button. The time display will appear for about 3 sec­onds.

Note:

The “CLOCK” will appear or time will flash at the push of the DISPLAY button when the
AC power supply is restored after a power failure or after unplugging the unit.
Reset the clock as follows.

To reset the clock:

Perform “Setting the Clock” from the beginning.
At this time, step 4 (for selecting the 12-hour or 24-hour display) will be skipped.

To change the 12-hour or 24-hour display:

Clear all the programmed contents.
[Refer to “If trouble occurs (reset)” on page 30 for details.]
Perform “Setting the Clock” from the beginning.

Setting the Clock

In this example, the clock is set for the 12-hour (AM12:00) display.

1

Press the POWER button to turn the power on.

2

Press the MENU button.

3

Turn the jog dial to select “CLOCK” and within 10 seconds, press
the ENTER button.

4

Turn the jog dial to select the 12-hour or 24-hour display and
within 2 minutes, press the ENTER button.

5

Turn the jog dial to adjust the hour and within 2 minutes, press
the ENTER button.

●

When the 12-hour display is selected, “AM” will change automatically to “PM”.

6

Turn the jog dial to adjust the minutes and within 2 minutes, press
the ENTER button.

●

The hour will not advance even if minutes advance from “59” to “00”.

● The clock starts from “0” second. (Seconds are not displayed.)

The time display will disappear after a few seconds.

“AM 12:00”→

The 12-hour display will appear. (AM 12:00 - PM 1 1:59)

“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)

CD-CH1000

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)

Troubleshooting Chart (continued)

■

If trouble occurs (reset)

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. Press the POWER button to enter the power stand-by mode.

2. While pressing down the VOLUME button, press the POWER button un­til “ALL CLEAR” appears.

Caution:

This operation will erase all data stored in memory including clock and timer settings,
and tuner and CD presets.

■

Before transporting the unit

Remove all CDs from the unit. Y our unit checks whether there are any discs inside the
unit when the tray is closed. “CD NO DISC” appears if no disc is left. Then, set the unit
to the power stand-by mode. Carrying the unit with discs left inside can damage it.

– 5 –

CD-CH1000

4

Setting the clock

Ajuste del reloj

In this example, the clock is set for the 12-hour (AM12:00) display.

En este ejemplo, el reloj está ajustado para la visualización de 12 horas (AM12:00).

1

2
3

4

5

Turn the jog dial to select “CLOCK” and
within 10 seconds, press the ENTER button.

Gire el mando de lanzadera para seleccionar
"CLOCK", y antes de transcurrir 10 segundos,
pulse el botón ENTER.

Turn the jog dial to select the 12-hour or
24-hour display and within 2 minutes, press
the ENTER button.

Gire el mando de lanzadera para seleccionar la
visualización de 12 horas o de 24 horas, y antes
de transcurrir 2 minutos, pulse el botón ENTER.

Turn the jog dial to adjust the minutes and
within 2 minutes, press the ENTER button.

Gire el mando de lanzadera para ajustar los
minutos, y antes de transcurrir 2 minutos, pulse
el botón ENTER.

Press the POWER button to turn the power
on.

Pulse el botón POWER para conectar la
alimentación.

Press the MENU button.

Pulse el botón MENU.

“AM 12:00” “AM 0:00” “0:00”

6

The control panel auto­matically opens when the
power is turned on.

El panel de control se
abrirá automáticamente
cuando se conecte la
alimentación.

Turn the jog dial to adjust the hour and
within 2 minutes, press the ENTER button.

Cuando se seleccione la visualización de 12 horas,
"AM" cambiará automáticamente a "PM".

When the 12-hour display is selected, “AM” will
change automatically to “PM”.

Gire el mando de lanzadera para ajustar la hora,
y antes de transcurrir 2 minutos, pulse el botón
ENTER.

1

Accesorios

Remote control × 1

Controlador remoto × 1

2

System Connections

Conexiones del sistema

FM antenna

Antena de FM

AM loop antenna

Antena de cuadro de AM

Right
speaker

Altavoz
derecho

Right speaker

Altavoz derecho

Blue

Azul

Accessories

FM/AM loop antenna × 1

Antena de FM/cuadro de AM × 1

Black

Negro

Left
speaker

Altavoz
izquierdo

Left speaker

Altavoz izquierdo

Red

Rojo

AC outlet
(AC 120 V, 60 Hz)

A un tomacorriente de CA
(120 V de CA, 60 Hz)

Blue

Azul

Black

Negro

Speaker wire for
MAIN terminals × 2

Cable del altavoz para

los terminales MAIN

3

Battery installation

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.

1

Remove the battery cover.

Extraiga la cubierta

2

Insert the batteries.

Inserte las pilas.

3

Replace the cover.

Vuelva a colocar la cubierta de las pilas.

Red

Rojo

Black

Negro

Speaker wire for
SUBWOOFER terminals × 2

Cable del altavoz para

×

2

los terminales SUBWOOFER

de las pilas.

×

2

– 6 –

CD-CH1000

Listening to a CD (CDs)

Audición de un disco CD (CDs)

1

2
3

4

5” (12 cm)

3” (8 cm)

5

Y

ou can place discs on the trays 2 - 6 by following the steps 3 - 5.

6

Podrá colocar discos en las bandejas 2 - 6 según los pasos 3 - 5.

7

Press the POWER button to turn the
power on.

Pulse el botón POWER para conectar
la alimentación.

Press the CD button.

Pulse el botón CD.

Press the DISC 1 button to open
the disc tray 1.

Pulse el botón DISC 1 para abrir la
bandeja del disco 1.

Place the CD on the disc tray 1,
label side up.

Coloque el disco compacto en la
bandeja del disco 1, con el lado de la
etiqueta hacia arriba.

Press the DISC 1 button to close
the disc tray 1.

Pulse el botón DISC 1 para cerrar la
bandeja del disco 1.

Press the button to start playback.

Pulse el botón para iniciar la
reproducción.

Listening to a Cassette Tape

Audición de un cassette

1

2
3

4

5

PUSH EJECT

Press the POWER button to turn the
power on.

Pulse el botón POWER para conectar
la alimentación.

Press the TAPE button.

Pulse el botón TAPE.

Open the cassette door by pushing
the area marked “PUSH EJECT ”.

Abra la puerta del cassette pulsando
la parte marcada "PUSH EJECT ".

Load the cassette into the cassette
compartment.

Inserte el cassette en el comparti­miento del cassette.

Press the button to start playback.

Pulse el botón para iniciar la
reproducción.

Listening to the Radio

Audición de la radio

1

2

3

4

Press the POWER button to turn the
power on.

Pulse el botón POWER para conectar
la alimentación.

Press the TUNER (BAND) button to
select the desired frequency band
(FM or AM).

Pulse el botón TUNER (BAND) para
seleccionar la banda de frecuencia
deseada (FM o AM).

Press the TUNING ( or ) button to
tune into the desired station.

Pulse el botón TUNING ( o ) para
sintonizar la emisora deseada.

To receive an FM stereo transmission,
press the ST-MODE button on the
remote control. The “ST” indicator
lights up.

Para recibir la transmisión de FM en
estéreo, pulse el botón ST-MODE del

ST

controlador remoto .Se enciende el
indicador “ST”.

Recording from the CD

Grabación de un disco CD

1

2

3

4
5

Press the POWER button to turn the
power on.

Pulse el botón POWER para conectar
la alimentación.

Press the CD button and load the
desired disc.

Pulse el botón CD y ponga el disco
deseado.

Load a cassette into the cassette
compartment.

Inserte un cassette en el comparti­miento del cassette.

Press the REC PAUSE button.

Pulse el botón REC PAUSE.

Press the
start recording.

Pulse el botón DISC 1 - DISC 6 para
iniciar la grabación.

DISC 1 - DISC 6

button to

– 7 –

CD-CH1000

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-CH1000

(A1)x2

ø3x16mm

Front Panel

Top Cabinet

(A1)x2

ø3x16mm

Side Panel

(Left)

(A1)x1

ø3x10mm

CD-CH1000

STEP REMOVAL

1 Top Cabinet 1. Screw ................ (A1) x5 8-1

2 Side Panel

3 Rear Panel 1. Screw ................ (C1) x3 8-2

4 Front Panel 1. Flat Cable.......... (D1) x1 8-2

5 Sub Trans PWB 1. Screw ................ (E1) x3 8-2

6 Main PWB 1. Flat Cable.......... (F1) x1 8-2

7 Power PWB/ 1. Socket ............... (G1) x1 9-1

Speaker PWB 2. Screw ................ (G2) x2

8 Tape Mechanism 1. Open the cassette holder 9-2

9 CD Switch PWB 1. Socket ............... (J1) x1 9-2

10 Switch PWB 1. Screw ................ (K1) x1 9-2

11 Headphones PWB 1. Screw ................ (L1) x1 9-2

12 CD Changer door 1. Screw ................ (M1) x3 9-2

panel/ 2. Screw ................ (M2) x2

Control Panel

13 Motor PWB 1. Solder ................(P1) x2 9-2

14 CD Changer door 1. Screw ................ (Q1) x4 9-3

panel

15 Control Panel 1. Screw ................ (R1) x7 9-3

16 Control PWB 1. Screw ................ (S1) x6 9-4

17 Jog PWB 1. Screw ................ (T1) x6 9-4

18 LED B PWB 1. Screw ................ (U1) x3 9-4

19 Cassette holder 1.

Cover 2. Screw ................ (V1) x4

20 Display PWB/ 1. Screw ................ (W1) x4 9-6

LED A PWB 2. Hook .................. (W2) x6

(Left/Right)

PROCEDURE

1. Screw ................ (B1) x8 8-1

2. Screw ................ (C2) x6

2. Screw ................ (D2) x4

3. Socket ............... (D3) x6

2. Socket ............... (E2) x5

2. Screw ................ (F2) x2

3. Screw ................ (F3) x1

4. Socket ............... (F4) x1

2. Screw ................ (H1) x4

2. Screw ................ (J2) x6

3. Hook ..................(J3) x2

2. Bracket .............. (L2) x1

2. Socket ............... (S2) x1

Open the cassette holder Cover

3. Display Panel .... (V2) x1

4. Hook ..................(V3) x4

FIGURE

9-5

(B1)x4

ø3x10mm

Tape Mechanism PWB

Front Panel

Main PWB

(F4)x1

(C1)x2

ø3x10mm

(F2)x2

ø3x10mm

CD PWB

(F1)x1

(D2)x2

ø3x8mm

Speaker

PWB

(E2)x3

Side Panel(Right)

Figure 8-1

(D1)x1

Rear Panel

Power PWB

(F3)x1

ø3x8mm

Panel

Power PWB

(E2)x2

Rear

ø3x10mm

Main PWB

(D3)x2

Speaker

(C2)x6

(D2)x1

ø3x8mm

(B1)x4

ø3x10mm

PWB

(C1)x1

ø3x10mm

– 8 –

Sub Trans

PWB

(E1)x3

ø3x8mm

(D3)x4

(D2)x1

ø3x8mm

Figure 8-2

CD-CH1000

(V1)x4

ø2.6x12mm

Front Panel

(V2)x1

(V3)x4

Open

Cassette
Holder Cover

(W1)x4

ø3x14mm

(W2)x4

(W2)x1

LED A
PWB

Cassette
Holder Cover

Display PWB

(W2)x1

Power PWB

CD Changer
Block

Front Panel

(H1)x4

ø3x10mm

(J1)x1

Speaker

PWB

(J3)x1

Figure 9-1

(G2)x1

ø3x10mm

(G2)x1

ø3x10mm

Main
Chassis

Cassette

Holder

(G1)x1

Open

Tape
Mechanism

CD Switch
PWB

(J3)x1

(S2)x1

(S1)x6

ø2.6x10mm

(U1)x2

ø2.6x10mm

Control PWB

(U1)x1

ø2.6x10mm

Figure 9-4

Control Panel B

(T1)x6

ø2.6x10mm

Control Panel A

Jog PWB

LED B PWB

LED Holder

(J2)x6

ø3x10mm

(M2)x1

ø3x20mm

(P1)x2

Motor

PWB

(M1)x3

ø3x10mm

ø3x20mm

(Q1)x2

ø2.6x10mm

(R1)x2

ø2.6x12mm

(M2)x1

(K1)x1

ø2.6x10mm

CD Changer

Door Panel

(L1)x1

ø3x10mm

Figure 9-2

(R1)x3
ø2.6x12mm

(L2)x1

CD Changer
Door Panel

Switch PWB

Headphones
PWB

(Q1)x1

ø2.6x10mm

Figure 9-5

Control Panel

Figure 9-3

(R1)x2

ø2.6x12mm

(Q1)x1

ø2.6x10mm

Figure 9-6

– 9 –

CD-CH1000

CD-CH1000 (CD CHANGER MECHANISM UNIT)

STEP

1 Top Cabinet 1. Screw ................ (A1) x5 8-1

2 Side Panel

3 Rear Panel 1. Screw ................ (C1) x3 8-2

4 Front Panel 1. Flat Cable.......... (D1) x1 8-2

5 CD Changer 1. Flat Cable.......... (X1) x1 10-1

6 CD PWB 1. Screw ................ (Y1) x4 10-2

7 CD Mechanism 1. Screw ................ (Z1) x4 10-2

REMOVAL PROCEDURE

(Left/Right)

Mechanism 2. Screw ................ (X2) x2

(Note) 2. Socket ............... (Y2) x4

1. Screw ................ (B1) x8 8-1

2. Screw ................ (C2) x6

2. Screw ................ (D2) x4

3. Socket ............... (D3) x6

3. Screw ................ (X3) x5

3. Flat Wire............ (Y3) x2

FIGURE

Note:

After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.

CD Changer

Mechanism

Front Side

CP-RW5000

STEP REMOVAL

1 Woofer/Tweeter/ 1. Net................... (A1) x1 10-3

Sub Woofer 2. Front Panel ..... (A2) x1

PROCEDURE

3. Screw .............. (A3) x4 10-4

4. Ring ................. (A4) x1

5. Catching holder(A5) x2

6. Screw .............. (A6) x2

7. Cover............... (A7) x1

8. Screw .............. (A8) x2

9. Screw .............. (A9) x4 10-5

10. Cover............. (A10) x10

(A1)x1

(A2)x1

Driver should
be pried away
from Speaker Box.

Screw Driver

FIGURE

(X2)x1

ø3x10mm

Bottom Side

(X3)x3

ø3x10mm

(X2)x1

ø3x10mm

(Y1)x4

ø3x10mm

(Y2)x1

CD PWB

(Z1)x4

ø2.6x10mm

(X3)x2

ø3x10mm

Figure 10-1

(Y2)x2

Main Chassis

(Y3)x1

(Y3)x1

(Y2)x1

CD Changer

Mechanism

CD PWB

(X1)x1

(A5)x2

(A6)x2
ø3x10mm

Speaker Box

(A7)x1

(A3)x4
ø4x16mm

Figure 10-3

Speaker Box

(A8)x2
ø3x10mm

(A4)x1

Figure 10-4

Speaker Box

Bottom Side

Tweeter

Woofer

Top Side

Sub Woofer

(A10)x1

CD Mechanism

Figure 10-2

(A9)x4
ø4x20mm

Rear Side

Figure 10-5

– 10 –

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 4 and 8 of the disassembly method to
remove the tape mechanism.

How to remove the record/playback and erase
heads (See Fig. 11-1)

1. Carefully remove the record/playback head and erase head
screws (A1) x 2 pcs.

How to remove the pinch roller (See Fig. 11-2)

1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (B1) x1 pc., in the
direction of the arrow <B>.

Note:

When installing the pinch roller, pay attention to the spring
mounting position.

Erase
Head

(A1)x1
Ø2 x 9mm

Pinch Roller
(B1)x1

(A1)x1
Ø2 x 5mm

Figure 11-1

Pull

<B>

Figure 11-2

CD-CH1000

Record/Playback
Head

Pinch
Roller
Pawl

Pull

<A>

How to remove the belt (See Fig. 11-3)

1. Remove the motor.

2. Remove the main belt (C1) x 1 pc., from the motor side.

3. Remove the FF/REW belt (C2) x 1 pc.

How to remove the motor (See Fig. 11-4)

1. Remove the belt.

2. Remove the screws (D1) x 2 pcs., to remove the motor.

(D1)x2
Ø 2.6 x 5mm

FF/REW Belt
(C2)x1

Motor

Main Belt
(C1)x1

Figure 11-3

Motor

– 11 –

Figure 11-4

CD-CH1000

Main Cam Motor

Tray Motor

CD PWB

(1)Front Top Plate

(2)Changer Box,
Left

(2)Changer Box,
Right

(3)Disc Tray,1~6

CD Changer Mechanism

(B1)x4

ø3x10mm

(B2)x4

ø2.6x4mm

FRONT PANEL SECTION

Perform steps 1 to 4 of the disassembly method to remove the
front panel.

How to remove the control panel motor
(See Fig. 12-1)

1. Remove the control panel.

2. Remove the screws (E1) x 6 pcs., to remove the CD changer
door panel.

3. Remove the screws (F1) x 2 pcs., to remove the control
panel motor.

CD MECHANISM SECTION

Perform steps 1 to 7 of the disassembly method to remove the
CD mechanism. (See page 10.)

How to Remove the pickup (See Fig. 12-2.)

1. Remove the screws (A1)x 2 pcs., to remove shaft (A2)x 1
pc.

2. Remove stop washer (A3)x 1 pc., to remove gear (A4)x 1 pc.

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 remove to protect the optical pickup
from electrostatic damage.

CD Changer
Door Panel

Control Panel

Control
Panel Motor

(E1)x2
ø2.6x10mm

Stop Washer
(A3) x1

Pickup

CD
Mechanism

Gear Box A

Figure 12-1

(A1) x1
ø2.6 x6mm

(E1)x1
ø2.6x10mm

Gear Box B

CD Changer
Door Panel

Motor PWB

(A1) x1
ø2.6 x6mm

Gear Box A

Control
Panel Motor

(E1)x3
ø2.6x10mm

(F1)x2
ø2x5mm

Gear
(A4) x1

Shaft
(A2) x1

CD CHANGER MECHANISM SECTION

Perform steps 1 to 5 of the disassembly method to remove the
CD changer mechanism. (See page 10.)

How to Remove the tray motor/main cam motor
(See Fig. 12-3.)

1. Remove the screws (B1)x 4 pcs., to remove the CD PWB.

2. Remove the (1)front top plate, (2)changer box, left/right and
(3)disc trays 1~6. After that, disassemble as shown in the
figure.

3. Remove the screws (B2)x 4 pcs.

4. Remove the tray motor and main cam motor.

Note:

The parts of (1), (2) and (3) correspond to the drawing Nos.
117, 102, 103 and 108 to 113 of the CD change mechanism
disassembly drawing.
Remove the screws of 117, 102 and 103, and the parts of (1),
(2) and (3) will be ready for removal and the screws of the tray
motor and main cam motor will be visible.

Figure 12-2

Figure 12-3

– 12 –

CD-CH1000

CD CHANGER MECHANISM MAIN BASE PARTS ASSEMBLING/ADJUSTING
PROCEDURE

Work content

1. Motor assembly (X 2) mounting (screw x 4) 101/129 Fig.14

2. MT idle gear mounting (screw x 1) 125 Fig.14

3. MT system gear assembly 123/124/126/127 Fig.14

4. STB/tray drive system gear and others assembling/ 137/138/145/146 (153)/147/148 Fig.14
mounting (screw X 3)

5. Tray big gear assembly 131 Fig.14 Gear positioning

6. T.M SW PWB mounting (screw x 3) Fig.15

7. STB holder assembling 103 Fig.14

8. STB drive gear L/R assembly mounting (screw x 2) 111 (110)/112 (110) Fig.14

9. Tray joint gear R/tray drive gear R assembling 134/136 Fig.15 Gear positioning

10. Tray gear A/B assembling 132/133 Fig.15 Gear positioning

11. Lift gear B/C assembling 143/144 Fig.16 Gear positioning

12. MT idler gear F assembling, mode big gear 128/142 Fig.16
mounting (screw x 1)

13. Change box R mounting (screw x 4) 104 Fig.16

14. Lift gear A assembling 142 Fig.16 Gear positioning

15. Change box L assembly mounting (screw x 4) 102/130/135 Fig.17

16. Lift cam assembling (shaft inserting) 144 Fig.17 Gear positioning

17. STB holder height adjusting Fig.18 Check/adjustment

18. Top plate F/disc OB LEV. mounting (screw x 6) 180 Fig.18

19. Trays 1 - 6 assembling 191/192/193/194/195/196 Fig.19

20. Top plate R mounting (screw x 6) -

Applied part No.

Assembly fig. No.

Remarks

No.

101 MAIN BASE
102 CHANCE BOX L
103 STB HOLDER
104 CHANGE BOX R

110 STB DRIVE GEAR A
111 STB DRIVE GEAR L
112 STB DRIVE GEAR R
120 STABILIZER FH

123 MT IDLER GEAR A
124 MT IDLER GEAR B
125 MT IDLER GEAR C
126 MT IDLER GEAR D
127 MT IDLER GEAR E
128 MT IDLER GEAR F
129 MOTOR GEAR
130 TRAY DRIVE GEAR F
131 TRAY BIG GEAR
132 TRAY GEAR A
133 TRAY GEAR B
134 TRAY DRIVE GEAR R
135 TRAY JOINT GEAR F
136 TRAY JOINT GEAR R
137 TRAY GEAR C
138 TRAY IDLER GEAR

Part name

CD CHANGER MECHANISM PARTS LIST

Part nameNo.

140 LIFT CAM
141 MODE BIG GEAR
142 LIFT GEAR A
143 LIFT GEAR B
144 LIFT GEAR C
145 STB GEAR A
146 STB GEAR B
147 STB GEAR C
148 STB GEAR D

150 LIFT LEVER
151 TRAY LOCK LEVER
152 DISC OB LEVER
153 STB GEAR ANG.

180 TOP PLATE F
181 TOP PLATE R

191 TRAY T1
192 TRAY T2
193 TRAY T3
194 TRAY T4
195 TRAY T5
196 TRAY T6

– 13 –

CD-CH1000

STB DRIVE GEAR R

STB DRIVE GEAR A

STB GEAR ANG.

STB GEAR B

STB GEAR C

110

STB DRIVE GEAR A

(ASSY)

153

146

147

112

110

STB GEAR A

145

148
STB GEAR D

126

103
STB HOLDER

129

127

123

125

124

123

101
MAIN BASE

129

Mark position

STB GEAR C

147

STB DRIVE GEAR L

111

(ASSY)

138
TRAY IDLER GEAR

137
TRAY GEAR C

131
TRAY BIG GEAR

After assembly TRAY BIG GEAR, turn it in the arrow direction.

TRAY BIG GEAR ASSEMBLING POSITION

111(/112) (110)
STB DRIVE GEAR L(/R)

(ASSY)

146
STB GEAR B

STB GEAR ANG.

153

STB GEAR A

145

138
TRAY IDLER GEAR

137
TRAY GEAR C

Figure 14

– 14 –

131
TRAY BIG GEAR

CD-CH1000

146

147

110

111

Direct the recess part
(trapezoidal side) of the axis
135 in this direction.

145

129

126

123

125

127

138

134
TRAY DRIVE GEAR R

136
TRAY JOINT GEAR R

124

137

129

123

131

M T SW PWB

Scale: 2 magnifications

Mark position

* This position becomes the
reference (stock) position
of the tray.

132
TRAY GEAR A

The hole must align.

It must not rotate in contact
with the peripheral (hatched)
part of 131.

133
TRAY GEAR B

132

Scale: 2 magnifications

*2

TRAY BIG GEAR SET POSITION

*1: To position the axis part of 136, engage it with 138.
*2: When it is aligned as described in *1, the hatched part

*1

(low gear-height part of gear) will be positioned in this position.
Note: After positioning the tray big gear in the set position, engage these gears.

134
TRAY DRIVE GEAR R

136
TRAY JOINT GEAR R

TRAY GEAR B

133

133

132
TRAY GEAR A

The hole must align.

After assembling 132,
assemble 133.

Figure 15

– 15 –

CD-CH1000

MT IDLER GEAR F

128

142

LIFT GEAR A

Mark position

(Assemble the mode big gear in this position.)

104
CHANGE BOX R

Note
To assemble the mode

big gear, incline it,
bring it into contact with
the circumference and
put the center hole into
position since the
hatched part of the main
base is overlapped with
the circumference.

132

110

153

146

147

111

Scale: 2 magnifications

(A)

145

(B)

137

134

136

138

141
MODE BIG GEAR

143

LIFT GEAR B

MODE BIG GEAR
LIFT GEAR A/B/C
ASSEMBLING POSITION

<Assembling method of lift gear>

After setting up the mode big gear in the
shown position, engage it with the STB gear A
(gear on the lower side) at the position (A),
and assemble them, turning it in the arrow direction
into the position (B). (The short tooth directs toward the
center of the mode big gear.)

142
LIFT GEAR A

133

144
LIFT GEAR C

Direct the short tooth
toward the center.

Scale: 2 magnifications

141
MODE BIG GEAR

LIFT GEAR B

Figure 16

– 16 –

143

144
LIFT GEAR C

37°

CD-CH1000

128

145

142

141

143 144

Scale: 2 magnifications

LIFT GEAR A

146

110

147

111

TRAY JOINT GEAR F
(CHANGE BOX L ASS'Y) ASSEMBLING POSITION
LIFT CAM

Assembling procedure

1. Turn the mode big gear approx. 37 degrees in the arrow direction.

2. Assemble the change box L ass'y.
Note: At this time, the tray joint gear F must be located in the position shown in figure.
Moreover, the gear must be engaged securely.

3. After assembly, return the mode big gear to the initial position.

4. Assemble the lift cam.
Note: At this time, the lift cam must be located in the position shown in figure.

140

LIFT CAM

Mark position

132

133

130
TRAY DRIVE GEAR F

102

CHANGE BOX L
Direct the recess part (trapezoidal side)
of the axis 135 in this direction.

135
TRAY JOINT GEAR F

*1

140
LIFT CAM

*2

130
TRAY DRIVE GEAR F

135
TRAY JOINT GEAR F

*1: To position the axis part
of 135, engage it with 133.

*2: When it is aligned as
described in *1, the hatched part
(low gear-height part of gear)

will be positioned in this position.
Since this gear engagement is not
visually checked, verify that it does
not float when the gear box L is installed.

Scale: 2 magnifications

Figure 17

– 17 –

135
TRAY JOINT GEAR F

During assembly, make the
O part visible in this direction.

Note: Among 4 ribs on the
circumference, one rib alone
is provided with O.

130
TRAY DRIVE GEAR F

CD-CH1000

180
TOP PLATE F

Mark position

146

110

When the height of
STB holder is low,

(Increase the clearance.)

Bend this part.

Scale: 2 magnifications

LIFT GEAR A

145

147

111

When the height of
STB holder is high,

(Decrease the clearance.)

142

141

STB HOLDER HEIGHT ADJUSTING METHOD

Adjusting procedure

1. Turn the mode big gear approx. 37 degrees in the arrow direction.

2. Viewing from the front side of the mechanism, verify that the guide ribs
(CHANGE BOX L/R and STB HOLDER)of tray are as tall as each other.

3. If they are not, bend the lever for adjustment. (Refer to the details.)

240
OS LEVER

Bend this part to adjust the height of the STB holder.

Details

Note: Also apply the same adjustment on the R side.

Height of the rib

143

132

133

130

135

140

144

180
TOP PLATE F

140

Figure 18

– 18 –

130

135

142

LIFT GEAR A

Mark position

Be sure to assemble the tray into this position.

191~196
TRAY1~TRAY6

Insert it along the guide of
the change box.

132

CD-CH1000

145

146

110

147

111

Tray installing method: (After adjusting the height of the STB holder)

1. Turn the mode big gear to the mark position to lower the STB holder to the bottom area.

2. From the front side, install the tray. (Securely insert it to the lock position.)

141

143

144

140

140

133

135

130

TRAY No.1~6

Rear surface: Stamped.

Note: During insertion, don't mistake No.

TRAY 6

TRAY 5

TRAY 4

Rear side

TRAY 3

TRAY 2

TRAY 1

130

135

Figure 19

Measure to be taken when a disc cannot be removed due to a mechanism trouble

First, remove the mechanism unit section from the set, and check for the state of the disc.
(Remove the top plate R if necessary.)
<State of the disc>
(1) When the disc is in the normal PLAY (chucking) position -> Try to eject the disc by turning the mode big gear/tray big gear

manually.
* At this time, be sure to adjust the tray's position (height).
(2) When the disc is in the normal STOCK position -> Try to eject the disc by turning the tray big gear manually.
* At this time, be sure to adjust the tray's position (height).
(3) When the disc is not in the normal position -> The tray or disc is not in the normal position. (The tray or disc may catch

somewhere.)

Remove the TOP PLATE F/DISC OB lever.
Unlock the tray lock lever and pull out the tray which is not caught.
Move the caught tray or disc and remove the disc.

In case of (1) and (2), the mechanism is normal (defective circuit parts, etc.). However, it may stop somewhere.
This is the reason why you should try to turn the tray big gear first.
In case of (3), either of the big gears does not turn.

– 19 –

CD-CH1000

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter

Play: TW-2412 Over 80 g

• Torque Check

Torque Meter

Play: TW-2111 30 to 60 g. cm
Fast forward: TW-2231 60 to 120 g.cm
Rewind: TW-2231 60 to 120 g.cm

• Tape Speed

Test Tape

MTT-111 Variable 3,000 ±90 Hz Speaker

Adjusting

Point

resistor in terminal
motor.

TAPE MECHANISM

Variable
Resistor
in motor

Specified Value

Specified Value

Specified

Value

Instrument

Connection

TUNER SECTION

fL: Low-range frequency
fH: High-range frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Frequency

AM IF 450 kHz 1,720 kHz T351 *1

AM Band — 530 kHz (fL): T306 *2

Coverage 1.1 ± 0.1 V
AM 990 kHz 990 kHz T302 *1

Tracking

*1. Input: Antenna Output: Speaker Terminal
*2. Input: Antenna Output: TP301

• FM RF

Signal generator: 1 kHz, 75 kHz dev., FM modulated

Test Stage

FM Band — 87.50 MHz (fL): T311 *1

Coverage 1.3 ± 50mV

FM RF 98.00 MHz 98.0 MHz L312 *2

*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker Terminal

Frequency Display

Frequency Frequency

Display

(10~30 dB)

Setting/

Adjusting

Parts

Setting/

Adjusting

Parts

Instrument

Connection

Instrument

Connection

Tape motor

Figure 20-1 ADJUSTMENT POINT

CNP303

FM/AM

ANTENNA

SOCKET

3
2
1

CNP303

AM

GND

FM

T302

BF301

1

L312

FM RF

AM
Tracking

IC301

T312

FM IF

AM Band
Coverage fL

T306

9

FM Band
Coverage fL

R345

• FM Mute Level (FM ST MODE)

Signal generator: 1 kHz, 40 kHz dev., FM modulated

Frequency

98.00 MHz 98.00 MHz VR351*1 Input:CNP303
(26 dBµV) Output: Speaker

Display

Adjusting

Parts

Instrument

Connection

Terminal

*1. Adjust so that an output signal appears.

MAIN PWB

15

13

T311

FM Mute
Level

VR351

AM IF

24

1

1

BI960

IC303

12

T351

CF352

TP301

IC302

Figure 20-2 ADJUSTMENT POINTS

– 20 –

CD-CH1000

TEST MODE

Outline

While the unit is turned off, press the POWER key while holding down the VOLUME-DOWN and PANEL OP/CL keys to enter
the test mode selection mode. Then, the unit is started, the panel is opened, and the microcomputer's version/destination/span
is displayed. If the following data is entered from the keyboard while in the test mode selection mode, the unit directly enters
the specified test mode. This operation is applied to the main unit's keys only.

Character display

Item Type Auxiliary display 1 2 3 4 5 6 7 8 : 9 10 Auxiliary display Note
Version•Destination V * • * Left adjust in the first line

Number

:

Span

Example: V1. 1_W:_9

In the destination display, a destination code (H/W/U/J) is displayed. For the span display, "9" means 9 kHz/50 kHz, and "10"
means 10/100 kHz. All pictures will disappear except the characters.

By pressing the specific key, you can enter the test mode whose functions are as follows:

Menu display Shortcut Key Model

System INITIAL CD1 PLAY ALL Shipping status setting

SOFT_RESET CD2 PLAY ALL Soft rest
CD CD_TEST CD1 EJECT ALL CD test
Tuner TUN_PRESET CD4 EJECT ALL Tuner test frequency preset

TUNER_TEST CD5 EJECT ALL Tuner test

Outline of Test Mode

Name Description

1 Shipping status setting Sets up the unit for shipping.
2 Soft set setting Initializes the unit.
3 CD test Performs tests such as the CD mechanism test, hardware test,

and constant setting test.

4 Tuner test Presets the test frequency.

frequency preset

5 Tuner preset clear setting Clears all presets.

Destination

Shipping status setting test mode

Purpose: To Set up the unit for shipping.
Function: To check the unit for a CD disc, and initialize all functions.
Operation: While checking for a CD disc, the test name (INITIAL) is displayed.

The initial operation for a CD disc is performed. In this operation, the unit is checked for a CD disc.
If a CD disc is found in the unit during the initial operation, "CD* OPEN" is displayed, the tray is opened (only for the
disc found first), and the unit is turned on via the CD function normally.
If no CD disc is found, the CD mechanism is placed in the chucking status.

After the unit is checked for discs, all settings are initialized, "FINISH" is displayed as in the sample display, and data entry is
prohibited including data to turn on or off the unit.

To exit the test mode

The unit returns to the normal operation through reset entry (hard).

Table Character display for test mode 1

Character display

Item Type Auxiliary display 1 2 3 4 5 6 7 8 : 9 10 Auxiliary display Note
Test mode name I N I T I A L
CD disc inserted
Set-Up Complete Function F I N I S H

In the destination display, a destination code is displayed. For the span display, "9" means 9 kHz/50 kHz, and "10" means 10/
100 kHz.

Operation

CD* OP E N

– 21 –

CD-CH1000

2. Soft reset

Purpose: To initialize the unit.
Function: To initialize all functions.
Operation: "ALL CLEAR" is displayed, all functions are initialized, and the unit is turned on.

To exit the test mode
When the initialization through soft reset is complete, the unit is turned on.

Table Character display for test mode 2

Character display

Item Type Auxiliary display 1 2 3 4 5 6 7 8 : 9 10 Auxiliary display Note
Reset operation
display

3. CD test mode (If this test mode is not activated, refer to CD troubleshooting on page 54.)

In the CD test mode, each step can be performed even if the LID-SW is off. However, if you cannot obtain a focus in step
3 or if other kind of error handling starts, you cannot proceed to the following steps. In error handling, press the POWER key
to exit the test mode, or press the STOP key to prohibit operations other than returning to step 1.

(1) Step 1 mode

In the CD test mode, the following display appears, CD initialization is performed, and you are prompted for data.
Reset operation display / Operation

Operation

ALL CL E A R

"CD_TEST"
After lighting up for one second

"T1___________0:00"

The keys you can press here and the resulting operations are as follows:

"POWER"........... The test mode is turned off, the power is turned off, and the unit is placed in the normal standby mode.

"FWD" ................ While holding down this key, the pickup moves outward after returning to the innermost track.

"REV" ................. While holding down this key, the pickup moves inward after returning to the innermost track.

"PLAY" ............... Jumps to step 2.

"STOP"............... Cancelled.

"TAPE REC" ...... Jumps to step 5.

* While the pickup is moving to the innermost track in the initialization, none of the keys except POWER is accepted. When PU-

IN SW ON cannot be detected in ten seconds, the unit stops the slide motor and shows the following error code. Then, you
can press the POWER key to exit the test mode, or the STOP key to return to step 1. You cannot perform other operations.

"E--CD01"

(2) Step 2 mode

When the "PLAY" key is pressed in the above mode, the laser is turned on. At this time, another operation must not be

performed.

Display "T2___________0:00"

The keys you can press here and the resulting operations are as follows:

"POWER" ........... The test mode is turned off, the power is turned off, and the unit is placed in the normal standby mode.

"FWD"................. While holding down this key, the pickup is moved outward.

"REV".................. While holding down this key, the pickup is moved inward.

"PLAY"................ Jumps to step 2.

"STOP" ............... Returns to step 1.

"TAPE REC"....... Jumps to step 5.

– 22 –

CD-CH1000

(3) Step 3 mode

Performs focus search and turns on the focus servo.
Focus search is repeated until it is brought into focus.

Display "T3___________0:00"
The keys you can press here and the resulting operations are as follows:

"POWER" ........... The test mode is turned off, the power is turned off, and the unit is placed in the normal standby mode.

"FF/FWD" ........... While holding down this key, the pickup is moved outward.

"REW/REV" ........ While holding down this key, the pickup is moved inward.

"PLAY"................ Jumping to step 4 when a focus is obtained. Otherwise, data entry is prohibited.

"STOP" ............... Returns to step 1.

"TAPE REC"....... Jumps to step 5.

* You should return to step 1 if it is out of focus after bringing it into focus.

(4) Step 4 mode

Rotate a disc.

Displayed string: "T4___________0:00"

The clock display should always be "0:00".
The keys you can press here and the resulting operations are as follows:

"POWER" ........... The test mode is turned off, the power is turned off, and the unit is placed in the normal standby mode.

"FF/FWD" ........... While holding down this key, the pickup is moved outward.

"REW/REV" ........ While holding down this key, the pickup is moved inward.

"PLAY"................ Jumps to step 5.

"STOP" ............... Returns to step 1.

"TAPE REC"....... Jumps to step 5.

* You should return to step 1 if it is out of focus.

(5) Step 5 mode

Start playback. When the pickup reaches the outermost track, it does not stop. The LCD screen shows the replay time elapsed
as in the normal CD playback.

Display "T5___________0:00"

The keys you can press here and the resulting operations are as follows:

"POWER" ........... The test mode is turned off, the power is turned off, and the unit is placed in the normal standby mode.

"FWD"................. While holding down this key, the pickup is moved outward.

"REV".................. While holding down this key, the pickup is moved inward.

"PLAY"................ Canceled.

"STOP" ............... Returns to step 1.

* You should return to step 1 if it is out of focus.

Notes:

• In the test mode, TOC IL is not performed.

• Only the keys for adjusting the volume are accepted except the keys described

4. Tuner test frequency preset

Purpose: To preset a test frequency for an in-factory test.
Function: To preset each preset number to the band and frequency shown in Table 24 based on the initial setting for the

destination.

Operation: To preset the band and frequency shown in the table below and turn the unit on with the following setting.

Function Tuner
Band FM monaural
Tuning mode Preset call selection
Call preset number Preset number 1 frequency
Band's last preset channel See Table 24
X-BASS Off
Preset equalizer FLAT

For other functions, the value which was set when the unit was turned off last time is valid (last state).

To exit the test mode
After the frequency is preset and the set-up is done, the unit is turned on and normal operations start.

– 23 –

CD-CH1000

Table 24. TEST-TuSet preset frequencies

BAND

U.S.A.CH

1 % FM 87.5 MHz
2 FM108.0 MHz
3 FM FM 90.0 MHz
4 FM106.0 MHz
5 FM 98.0 MHz

6 % AM 530 kHz
7 AM1720 kHz
8 AM AM 600 kHz
9 AM1400 kHz
10 AM 990 kHz

11-40

Extension cable

Type

1. 33 Pin extension QCNWN6931AFZZ
flat cable, 500mm

Part No.

Unused channels are indicated with "_".
'%' indicates the last channel for each band.
All FM bands are preset to FM monaural.

CNP1

33

33

1

1

33Pin extension flat cable
QCNWN6931AFZZ

33

1

CNP901

1

33

CD PWB-C

MAIN PWB-A

Figure 24

ERROR MESSAGE LIST

CD error messages

Errors

Messages

Pickup mechanism error E-CD01 Slide motor operation error (PU-IN SW detection NG)
Tray error E-CD20 Tray open/close operation error
Changer mechanism error E-CD10 Changer mechanism operation error

TUNER error messages

Errors

Messages

Relation to RDS WEAK SIG When switching to an EON station,
EON reception impossible it cannot be received due to weak signal.

PLL UN LOCK Frequency Reception error or PLL control error

indicator
flashing

Remarks

Remarks

TAPE error messages

Errors

Messages

You tried to record on a tape 'PROTECTED'
removing the recording
prevention tabs.

TAPE mechanism error E-TA01 Mechanism initialize abnormal end

– 24 –

Remarks