Sony XL3000 Service Manual

XL-3000/3000C

SERVICE MANUAL

No. S4122XL3000U/

COMP ACT AUDIO SYSTEM

MODEL XL-3000

XL-3000 Compact Audio System consisting of XL-3000 (main unit) and CP-XL3000U (speaker system).

MODEL XL-3000C

XL-3000C Compact Audio System consisting of XL-3000C (main unit) and CP-XL3000U (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.

CONTENTS

Page

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

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

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

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

DISASSEMBLY................................................................................................................................................................. 7

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................... 9

ADJUSTMENT................................................................................................................................................................ 10

TEST MODE ................................................................................................................................................................... 11

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 20

TYPES OF TRANSISTOR AND LED.............................................................................................................................. 20

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 21

BLOCK DIAGRAM .......................................................................................................................................................... 22

SCHEMATIC DIAGRAM ................................................................................................................................................. 26

WIRING SIDE OF P.W.BOARD...................................................................................................................................... 34

TROUBLESHOOTING .................................................................................................................................................... 38

FUNCTION TABLE OF IC .............................................................................................................................................. 44

LCD SEGMENT .............................................................................................................................................................. 53

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

SHARP CORPORATION

– 1 –

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

XL-3000/3000C

TO EXPOSED METAL PARTS

CONNECT TO KNOWN EARTH GROUND

TEST PROBE

0.15 µ F

1.5k ohms

10W

VTVM

AC SCALE

■

General

■

Amplifier

■

CD player

■

Tuner

■

Speaker

Power source

AC 120 V, 60 Hz

Power consumption

45 W

Dimensions

Width: 9-1/16" (230 mm) Height: 5-1/16" (128 mm) Depth: 11-9/16" (293 mm)

Weight

6.6 lbs. (3.0 kg)

Ou (For U.S.A)

(For CANADA)

tput power

Output power

16 wat

RMS: 40W (20W + 20W) (10% T.H.D.)

ts minimum RMS per channel into 6 ohms from 100 Hz to 20 kHz, 10% total harmonic distortion

Output terminals

Speakers: 6 ohms Headphones: 16 - 50 ohms (recommended:

32 ohms) CD digital output (optical) Subwoofer (Audio signal): 500 mV/47 ko-

hms

Input terminals

Video/Auxiliary (audio signal): 500 mV/47 kohms

Type

Compact disc player

Signal readout

Non-contact, 3-beam semiconductor laser pickup

D/A converter

1-bit D/A converter

Frequency response

20 - 20,000 Hz

Dynamic range

90 dB (1 kHz)

Frequency range

FM: 87.5 - 108 MHz AM: 530 - 1,720 kHz

Type

2-way type speaker system

2" (5 cm) Tweeter

4" (10 cm) Woofer

Maximum input power

40 W

Rated input power

20 W

Impedance

6 ohms

Dimensions

Width: 5-9/16" (140 mm) Height: 11-3/8" (288 mm) Depth: 7-3/8" (187 mm)

Weight

4.9 lbs. (2.2 kg)/each

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.

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 for this model are subject to change without prior notice

SPECIFICATIONS

– 2 –

NAMES OF PARTS

■

Front panel

1.CD Compartment

2.Volume Up and Down Butto ns

3.Power Button

4.Function Selector Button

5.Memory/Set Button

6.Bass/Treble Selector Button

7.CD Play or Pause, Tuning Up Button

8.CD Stop, Tuning Down Button

9.CD Track Down or Fast Reverse, Tuner Preset Down Button

10.CD Open/Close Button

11.CD Track Up or Fast Forward, Tuner Preset Up Button

■

Display

1.Timer Play Indicator

2.Sleep Indicator

3.CD Random Play Indicator

4.Memory Indicator

5.FM Stereo Mode Indicator

6.CD Play Indicator

7.CD Repeat Play Indicator

8.FM Stereo Receiving Indicator

9.Surround Indicator

2 3 4

7 8 9

10 11

■

Rear panel

1.Headphone Jack

2.AM Antenna Terminal

3.Antenna Earth Terminal

4.FM 75 Ohms Antenna Jack

5.CD Digital Output Jack

6.Subwoofer Output Jack

7.Video/Auxiliary (Audio Signal) Input Jacks

8.Speaker Terminals

9.AC Power Input Jack

3 4

5 6

7 8 9

XL-3000/3000C

– 3 –

XL-3000/3000C

■

Speaker system

1.Tweeter

2.Woofer

3.Bass Reflex Duct

4.Speaker Terminals

Speaker grilles are removable:

Make sure nothing comes into contact with the speaker diaphragms when you remove the speaker grilles.

Placing the speaker system: Left speaker Right speaker

There is no distinction between the right and the left speakers.

Notes:

●

The speakers are magnetically shield. Therefore, they do not affect the display even if you use them near the TV. However, some color variation may occur, depending on the type of TV used.

If color variation occurs...

Turn off the TV (from the power switch). After 15 - 30 minutes, turn the TV on again.

If the color variation is still present...

Move the speakers further away from the TV.

●

If any kind of magnet or an electromagnet is placed too close to the TV and the system, irregular colors may appear on the TV screen.

■

Remote control

Remote Control Transmitter

Power Button

CD Button

Tuner Button

5.Timer Button

6.Clock Button

Memory Button

8.Dimmer Button

9.Surround Button

10.

Volume Up and Down Buttons

11.

Video/Auxiliary Button

12.

Band Selector Button

13.Clear Button

14.Sleep Button

15.Random/Repeat Button

16.

CD Open/Close Button

17.

Tuner Preset Up Button

18.

CD Track Down Button

19.

CD Fast Reverse, Tuning Down Button

20.

CD Play Button

21.

CD Track Up Button

22.

CD Fast Forward, Tuning Up Button

23.

CD Pause Button

24.

CD Stop Button

25.

Tuner Preset Down Button

26.

Bass Up and Down Buttons

27.

Treble Up and Down Buttons

Buttons with " " mark in the illustration can be operated on the re-

mote control only.

Other buttons can be operated both on the main unit and the re-

mote control.

1 2

3 4

5 6

7 8

11 12

13 14

15 16

21 22

18 19

24 25

26 27

– 4 –

OPERATION MANUAL

Setting the Clock

This may be operated only with the remote control. In this example, the clock is set for the 12-hour (AM 12:00) display.

To confirm the time display when the power is on:

Press the CLOCK button. The time display will appear for about 5 seconds.

Note:

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

To readjust the clock:

Perform "Setting the Clock" from the beginning.

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

Press the CLOCK but ton and within 3 seco nds, press the MEMORY button.

Within 1 minute , press the PRESET ( or ) button to select 12-hour or 24-hour display and then press the

MEMORY button.

"AM 12:00" The 12-hour display will appear. (AM 12:00 - PM 11:59) "0:00" The 24-hour display will appear.

(0:00 - 23:59)

Note that this can only be set when the unit is first installed or it has been reset.

Within 1 minute, press the PRESET ( or ) butto n to adjust the hour and then press the MEMOR Y butto n.

●

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

Within 1 minute, press the PRESET ( or ) butto n to adjust the minutes and then press the MEMORY button.

●

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

●

The clock starts from "0" second. (Seconds are not displayed.)

1 Clear all the programmed contents. 2 Perform "Setting the Clock" from the beginning.

Remote Control

■

Test of the remote control

Check the remote control after checking all connections have been correctly. 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

■

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:

Caution:

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

1 Set the unit to the stand-by mode and turn the power on

again.

2 If the unit is not restored in step 1, unplug and plug in the

unit, and then turn the power on.

3 If neither step 1 nor 2 restores the unit, do the following:

Press the POWER button to enter the power stand-by mode. Unplug the AC power cord from the AC INPUT jack on the unit. While pressing down the MEMORY/SET button and the button, plug the AC power cord into the AC INPUT jack on the unit.

AC INPUT

XL-3000/3000C

– 5 –

XL-3000/3000C

Press the POWER button to turn the power on.

Pulse el botón POWER para conectar la alimentación.

Listening to a CD

Audición de un disco CD

5" (12 cm)

12 cm

3" (8 cm)

8 cm

Turn on your system

Conexión de la alimentación de su sistema

Total number of tracks

Número total de pistas

Total playing time

Tiempo total de reproducción

Press the FUNCTION button until “CD STOP” or “NO DISC” appears on the display.

Pulse el botón FUNCTION hasta que “CD STOP” o “NO DISC”

aparezca en el visualizador.

Press the

7 7

7 button to open

the CD compartment.

Pulse el botón

7 7

para abrir el

compartimiento del CD.

Place a CD on the spindle, label side up.

Ponga un CD sobre el eje, con la cara de la etiqueta arriba.

Press the

7 7

7 button to close

the CD compartment.

Pulse el botón

7 7

para cerrar

el compartimiento del CD.

Press the

J J

J button to start

playback from track 1.

Pulse el botón J para iniciar la reproducción desde la pista 1.

FM stereo mode indicator

Indicador del modo de FM en estéreo

FM stereo receiving indicator

Indicador de recepción de FM en estéreo

Press the FUNCTION button until “FM” or “AM” appears on the display.

Pulse el botón FUNCTION hasta que “FM” o “AM” aparezca en el visualizador.

Press the TUNING (

X or

button to tune in to the desired station. When the TUNING 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 (X o

) para sintonizar la emisora deseada. Cuando se pulse el botón TUNING 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 FUNCTION button to display the “ST” indicator.

● “

j” will appear when an FM

broadcast is in stereo.

Para recibir una transmisión de FM en estéreo: Pulse el botón FUNCTION para visualizar el indicador “ST”.

●

“j” aparecerá cuando una difusión de FM sea en estéreo.

Listening to the radio

Audición de la radio

Accessories

Accesorios

AC power cord × 1

Cable de alimentación de CA × 1

FM antenna × 1

Antena de FM × 1

Battery installation of remote control

Instalación de las pilas del controlador remoto

Use 2 “AAA” size batteries (UM-4, R03, HP-16 or similar).

Use dos pilas del tamaño “AAA” (UM-4, R03, HP-16 o equivalentes).

Remove the battery

123

cover.

Extraiga la cubierta de las pilas.

Remote control × 1

Controlador remoto × 1

Insert the batteries as shown.

Inserte las pilas como se muestra.

System connections

Conexiones del sistema

MD recorder

To the optical line input jack

FM antenna

Antena de FM

Para la toma de entrada de línea óptica

AM loop antenna

Antena de cuadro de AM

Right speaker

Altavoz derecho

Headphones

Auriculares

Grabadora de MD

Connection cable for digital recording (not supplied)

Cable de conexión para grabación digital (no suministrado)

Right speaker

Altavoz derecho

White line

Línea blanca

Black

Negro

To the line output jack

A la toma de salida de línea

VCR, DVD, etc.

Videograbadora, DVD, etc.

AM loop antenna × 1

Antena de cuadro de AM × 1

Speaker wire × 2

Cable del altavoz × 2

Batteries are not included.

Las pilas no están incluidas.

Replace the cover.

Vuelva a colocar la cubierta.

Speaker with a built-in

amplifier

Altavoz con amplificador incorporado

RCA cord (not supplied)

Cable RCA (no suministrado)

AC outlet (AC 120 V, 60 Hz)

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

Left speaker

Altavoz izquierdo

Left speaker

Altavoz izquierdo

– 6 –

DISASSEMBLY

Bottom Cabinet

(B1) x2 ø2.5 x8mm

(B4) x2

(B4) x4

(B3) x1

Main PWB

(A3) x1 ø3 x8mm

Lug

Hook (B2) x3

HOOK (B2) x2

(B4) x1

CD Mechanism

Hook

Slide

Top Cabinet

Bottom Cabinet

Power PWB

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 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.

(A1) x2 ø3 x10mm

Rear Panel

(A1) x3 ø3 x10mm

Top Cabinet

(A3) x3 ø3 x10mm

(A2) x3

XL-3000/3000C

STEP REMOVAL

Rear Panel/Terminal PWB

2 Top Cabinet 1. Screw ..................(B1) x2 7-2

3 Tuner PWB 1. Screw ..................(C1) x2 8-1

4 Power PWB 1. Socket ................. (D1) x1 8-1

5 Main PWB 1. Socket .................(E1) x1 8-1

6 Display PWB 1. Screw ..................(F1) x4 8-2

7 CD Mechanism 1. Screw ..................(G1) x4 8-2

8 Gear Box 1. Screw .................. (H1) x1 8-2

9 LED PWB 1. Screw ..................(J1) x1 8-2

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.

PROCEDURE

1. Screw ..................(A1) x7 7-1

2. Socket .................(A2) x3

3. Screw ..................(A3) x4 7-1,2

2. Hook .................... (B2) x5

3. Flat Cable............ (B3) x1

4. Socket .................(B4) x7

2. Socket .................(C2) x1

2. Hook .................... (D2) x1

2. Screw ..................(E2) x8

2. Hook .................... (F2) x4

2. Holder.................. (H2) x1

3. Lever ...................(H3) x1

4. Screw ..................(H4) x2

5. Lever ...................(H5) x1

FIGURE

(A1) x2 ø3 x10mm

Figure 7-1

Rear Panel

Terminal PWB

Figure 7-2

– 7 –

XL-3000/3000C

(G1) x4 ø2.5 x10mm

(H1) x1 ø3 x8mm

(H2) x1

(H5) x1

(H4) x2 ø2.5 x10mm

(J1) x1 ø2.5 x10mm

(F1) x4 ø2.5 x10mm

Hook (F2) x4

Display PWB

LED PWB

Switch PWB

Gear Box

CD Mechanism

Bracket

Top Cabinet

Holder PWB

(H3) x1

Power PWB

(E2) x7 ø3 x8mm

Hook (D2) x1

Main PWB

(E1) x1

Holder PWB

(E2) x1 ø3 x14mm

Figure 8-1

(D1) x1

(C1) x1 ø3 x8mm

Tuner PWB

(C2) x1

(C1) x1 ø3 x6mm

(C2) x1

Tuner PWB

Main PWB

Bottom Cabinet

Front Panel ( A2 ) x1

Net Frame ( A1 ) x1

( A3 ) x2 ø4 x12mm

( A3 ) x4 ø4 x12mm

Figure 8-3

Tweeter

Woofer

Screwdriver

STEP REMOVAL

1 Speaker 1. Net Frame ........... (A1) x1 8-3

– 8 –

Figure 8-2

PROCEDURE

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

3. Screw ..................(A3) x6

FIGURE

REMOVING AND REINSTALLING THE MAIN PARTS

(A1) x1 ø2.5 x10mm

(A1) x3 ø2.5 x12mm

(A2) x1

(A3) x1

(A4) x2 ø2 x5mm

Switch PWB

CD Lid Motor

Pickup unit

(A2) x2 ø2.6 x6mm

(A1) x4

CD Mechanism

Shaft (A3) x1

Gear (A5) x1

Stop Washer (A4) x1

Mechanism Cover

How to remove the CD lid (See Fig. 9-1.)

Perform steps 1,2 and 8 of the disassembly method to remove

the gear box.(See page 7,8)

1. Remove the switch PWB.

2. Remove the screws (A1) x 4 pcs., to remove the gear box lid.

3. Remove the gears (A2) x 1 pc. and (A3) x 1 pc.

4. Remove the screws (A4) x 2 pcs., to remove the motor.

Caution:

Be careful so that the gear is not damaged. (The damage gear emits noise during searching.)

XL-3000/3000C

CD MECHANISM SECTION (See Fig. 9-2.)

Perform steps 1,2 and 7 of the disassembly method to remove the CD mechanism.

1. Remove the mechanism cover, paying attention to the pawls (A1)x 4 pcs.

2. Remove the screws (A2) x 2 pcs., to remove the shaft (A3) x 1 pc.

3. Remove the stop washer (A4) x 1 pc., to remove the gear

(A5) x 1 pc.

4. 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 pretect the optical pickup from electrostatic damage.

Figure 9-1

Figure 9-2

– 9 –

XL-3000/3000C

FM IF 10.7 MHz 98.0 MHz T304(Turn Input: Pin 1 of

the core of IC301 T304 fully counterclockwise.)

Test

Stage

Frequency Frequency

Display

Setting/

Adjusting

Parts

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 1,620 kHz T351 *1

AM Band — 522 kHz (fL): T306 *2

Coverage 1.1 ± 0.1 V AM 990 kHz 990 kHz (fL): T302 *1

Tracking

*1. Input: Antenna, Output: Speaker Terminal *2. Input: Input is not connected, Output: TP301

• FM RF

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

Test Stage

FM Band — 87.5 MHz (fL): L303 *1

Coverage 3.4 ± 0.1 V FM RF 98.00 MHz 98.0 MHz L302 *2

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

Frequency Display

Frequency

(10~30 db)

SO301

ANTENNA

OHMS

TERMINAL

Frequency

Display

Setting/

Adjusting

Parts

Setting/

Adjusting

Parts

Instrument

Connection

Instrument

Connection

TUNER PWB-A2

GND

ADJUSTMENT

• FM Mute Level

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

Frequency

98.00 MHz 98.00 MHz VR351*1 Input: SO301 (30 dBµV) Output: Speaker

*1. Adjust so that an output signal appears.

• FM Detection

Signal generator: 10.7 MHz, FM sweep generator

• Setting the Test Mode

Keeping the FF/FWD button and MEMORY/SET button pressed, turn on POWER. Then, the frequency is initially set in the memory as shown in Table. Call it with the VOLUME UP/ DOWN button to use it for adjustment and check of tuner circuit.

Preset No. FM

1 87.5 MHz 6 530 kHz 2 108.0 MHz 7 1,720 kHz 3 98.0 MHz 8 990 kHz 4 90.0 MHz 9 600 kHz 5 106.0 MHz 10 1,400 kHz

Display

Adjusting

Parts

Preset No.

Instrument

Connection

Terminal

TP301

IC302

FM OSC.

FM Band Coverage fL

IC301

L303

T304 FM IF

VR351

FM Mute Level

T351

AM IF

Figure 10-1 ADJUSTMENT POINTS

IC303

L302

T306

AM Band Coverage fL

FM ANT. FM RF

T302

AM Tracking fL

– 10 –

XL-3000/3000C

TEST MODE

The test mode applied to this microcomputer has three modes, namely the ordinary test mode for adjustment or measurement, the aging test mode, and the self-diagnosis test mode for self-judgment in case of final product inspection.

1. Turning on the test mode

For obtaining each test mode, press the POWER button, while keeping pressing the following two buttons in the ordinary standby mode (power off ). In this case, the main unit buttons are valid. When turning the POWER on with remote control buttons, test modes are not obtained.

[Ordinary test mode]

1. CD Test Mode (TEST 1).................................... REW/PRESET DOWN + VOLUME UP

2. Tuner Test Mode (TEST 2).................................REW/PRESET DOWN + CD PLAY

3. Electronic Volume Test Mode (TEST 3)............. REW/PRESET DOWN + FF/PRESET UP

4. Timer Test Mode (TEST 4)................................. FUNCTION + VOLUME UP

5. LCD Test Mode (TEST 5)................................... FUNCTION + FF/PRESET UP

6. Electric CD Lid Aging Test Mode (TEST 8)........ FUNCTION + CD PLAY

[Self-diagnosis Test Mode]

1. Button input diagnosis test mode (TEST6)........

Processes are different depending on destinations at initial settings.

2. CD Test Mode (TEST 1)

In the CD test mode the operation of each step is possible even if the LID-SW is off. If focus cannot be taken in step 3 or any error is processed, it is impossible to proceed to the next step. During error processing, end the test mode by pressing the POWER button or return to the step 1 by pressing the CD STOP button. Any other operations are inhibited.

1. Step 1 Mode

When the CD test mode is obtained, the following display lights up. Then CD initialization operation flow proceeds up to CD STB off to wait for the following buttons to be pressed.

FUNCTION + VOLUME

One second after display lights up

Press the following buttons in this state to obtain the operations specified below.

"POWER".................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD".................After the pickup returns to the innermost periphery, it slides toward the outer periphery while this button

is pressed.

"REW/REV"..............After the pickup returns to the innermost periphery, it slides toward the inner periphery while this button

is pressed. If PICKUP IN is on, input is invalid.

"PLAY" .....................Shift to step 2

"STOP".....................Invalid

"FUNCTION"............Shift to step 5

– 11 –

XL-3000/3000C

* In case of initialization, the pickup is moved toward the inner periphery. Any buttons other than "POWER" button are not

accepted until the shift of pickup to the inner periphery is completed at this time. If PICKUP IN SW ON cannot be detected within 10 seconds, the slide motor stops, and the following error display appears. Press the POWER button to end the test mode, or press the CD STOP button to return to step 1. Any other operations are inhibited.

2. Step 2 Mode

Press the "CD PLAY" button in this mode to transmit the laser lighting command LDON (8400) and turn on the laser. Any other operations are not performed in this case.

Press the following buttons in this state to obtain the operations specified below.

"POWER" ................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD" ................The pickup slides toward the outer periphery while this button is pressed.

"REW/REV" .............The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is

invalid.

"PLAY".....................Shift to step 3

"STOP" ....................Return to step 1

"FUNCTION" ...........Shift to step 5

3. Step 3 Mode

While the laser keeps lighting, CD initialization operation flow proceeds up to 'CLV servo ON' to wait for the following buttons to be pressed.(Focus servo turned on for focus search) The focus search is repeated to take focus.

Press the following buttons in this state to obtain the operations specified below.

"POWER" ................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD" ................The pickup slides toward the outer periphery while this button is pressed.

"REW/REV" .............The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is

invalid.

"PLAY"..................... If focus has been taken, shift to step 4 is executed. If not, acceptance is inhibited.

"STOP" ....................Return to step 1

"FUNCTION" ...........Shift to step 5

*If the focus is not received after it has been taken, the process returns to step 1.

– 12 –

XL-3000/3000C

4. Step 4 Mode

The CLV servo ON command (8600) is transmitted to wait for the following buttons to be pressed. (The disc is rotated for CLV lock.)

The time display always indicates "0:00".

Press the following buttons in this state to obtain the operations specified below.

"POWER" ................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD" ................The pickup slides toward the outer periphery while this button is pressed.

"REW/REV" .............The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is

invalid.

"PLAY".....................Shift to step 5

"STOP" ....................Return to step 1

"FUNCTION" ...........Shift to step 5

*If the focus is not received, the process returns to step 1.

5. Step 5 Mode

When the CD initialization operation flow is completed, the mute is turned off, and playback is started. Even if playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback passage time as in case of ordinary CD playback.

Press the following buttons in this state to obtain the operations specified below.

"POWER".................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD".................The pickup slides toward the outer periphery while this button is pressed.

"REW/REV"..............The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is

invalid.

"PLAY" ..................... Invalid

"STOP".....................Return to step 1

"FUNCTION" ...........Shift to step 6

"MEMORY"..............Shift to step 7

*If the is not received, the process returns to step 1.

Other cautions

• TOC IL is not available for this test mode.

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XL-3000/3000C

6. Step 6 Mode

Press the FUNCTION button during step 5 operation to set EC/FC bit to "H" by PROSET command (9188 transmission) and to monitor BUS2 (QDRE) during idle mode. The number of errors for 1 frame (1 sub-code block in IC data) is read by read command SRC6 during "H". The number of errors accumulated in 750 frames for 10 seconds is displayed on LCD. During the display, music signal is played back.

Press the following buttons in this state to obtain the operations specified below.

"POWER".................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD".................The pickup slides toward the outer periphery while this button is pressed.

"REW/REV"..............The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is

invalid.

"PLAY" ..................... Invalid

"STOP".....................Return to step 1

"FUNCTION" ...........Shift to step 5

"MEMORY"..............Shift to step 7

Press FF/PRESET UP or REW/PRESET DOWN button to slide the pickup. The number of errors accumulated up to that time is cleared and addition is restarted after shift. *If the focus is not received, the process returns to step 1.

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XL-3000/3000C

7. Step 7 Mode

Press "MEMORY" key during step 6 operation to display automatically adjusted values on LCD in the order as below. Item names are displayed by left alignment, and adjusted values by right alignment in hexadecimal numbers. Operations other than display are as same as those for step 5.

a) "Fb" is displayed on the left of LCD. FTBAST command (D480) is transmitted to designate focus balance adjusting

register. Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. After waiting 2 seconds, operation is shifted to (b).

b) "FG" is displayed on the left of LCD. FTBAST command (D481) is transmitted to designate focus gain adjusting register.

Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. The upper two bits, which are invalid, are displayed as "00". After waiting two seconds, operation is shifted to (c).

c) "Tb" is displayed on the left of LCD. FTBAST command (D482) is transmitted to designate tracking balance adjusting

register. Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. After waiting 2 seconds, operation is shifted to (d).

d) "TG" is displayed on the left of LCD. FTBAST command (D483) is transmitted to designate tracking gain adjusting register.

Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. The upper two bits, which are invalid, are displayed as "00". After waiting 2 seconds, operation is shifted to (e).

e) "FO" is displayed on the left of LCD. FTBAST command (D484) is transmitted to designate focus offset adjusting register.

Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. After waiting 2 seconds, operation is shifted to (f).

f) "TO" is displayed on the left of LCD. FTBAST command (D485) is transmitted to designate tracking offset adjusting

register. Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. After waiting 2 seconds, operation is shifted to (g).

g) "FF" is displayed on the left of LCD. FTBAST command (D486) is transmitted to designate RF amplitude adjusting register.

Then data read by read command SRC2 (2) are displayed in hexadecimal numbers. After waiting 2 seconds, operation is shifted to (a).

Press the following buttons in this state to obtain the operations specified below.

"POWER".................Test mode and power turned off to shift to the ordinary standby mode.

"FF/FWD".................The pickup slides toward the outer periphery while this button is pressed.

"REW/REV"..............The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is

invalid.

"PLAY" .....................Invalid

"STOP"..................... Return to step 1

"FUNCTION" ...........Shift to step 6

"MEMORY"..............Shift to step 5

*If the focus is not received, the process returns to step 1.

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XL-3000/3000C

3. Tuner Test Mode (TEST 2)

1. Outline of tuner (radio) test mode

The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH. When

adjusting the tuner section in the production line, adjusting personnel are not required to set frequency.

2. Details of tuner test mode

Press the "REW/PRESET DOWN" and "CD PLAY" buttons in POWER OFF state and turn on the power by the use of

"POWER" button to preset and store frequency for adjustment and measurement of destination specified by the AREA terminal in the preset memory CH. However, Ordinary 1 and Ordinary 2 are stored in the destinations (selected by SPAN

switching operation) when the test mode is obtained. ("FF " + "MEMORY/SET" KEY SPAN CHANGE) (As for frequencies to be preset and stored for each destination, refer to item 3.) The tuner test mode is started from preset No.1. The operations of test mode are identical with the ordinary operations of TUNER function. FUNCTION switching is invalid.

It is necessary to discard the content of preset memory when the tuner test mode is ended; be sure to write "0000" or "1111" bits in the memory to be checked for judging memory error at initial setting and to initialize memory.

When the tuner test mode is obtained, the following display lights for one second.

• The TUNER TEST2 mode is obtained with >> + MEMORY + POWER. ->Turn off AC in the TEST2 mode to restore the initial state.

Turn off POWER to protect the memory of TEST2 mode. Turn off POWER again to obtain the ordinary operation while the data is stored in the memory (besides TUNER).

If AC OFF state is maintained in this state for about 1/2 day, start is executed in the initial state.

• To clear the whole memory, insert the AC cord, pressing MEMORY + CD PLAY.

3. Preset frequencies for various destinations (random preset memory)

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

• The slant line sections of the table store no memory.

BAND

6 AM 530 kHz 7 AM1,720 kHz 8 AM AM 990 kHz 9 AM 600 kHz 10 AM1,400 kHz

AMCH

16-25 26 FM106.0 MHz

27 FM 90.0 MHz 28 FM FM 98.0 MHz 29 MONO FM108.0 MHz 30 FM 87.5 MHz

BAND

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XL-3000/3000C

4. Electronic volume Test Mode (TEST 3)

When this test mode is obtained, the following display lights for one second.

In this mode, volume is -14 dB (STEP28), BASS/TREBLE is set to 0 (0 dB) and SURROUND mode to OFF, and start-up function to CD, respectively. The button operations in the test mode are the same as those of ordinary operation except volume UP/ DOWN.

(1) The display is the same as that of ordinary operation except test mode setting. (2) Unlike the ordinary state, the volume is controlled with the volume UP/DOWN button in accordance with the following three

steps.

Volume- ∞ (STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0 (STEP 30)

(3) BASS/TREBLE and SURROUND are switched when button is pressed..

5. Timer test Mode (TEST 4)

When this test mode is obtained, the following display lights for one second.

Set the current time and timer time according to the following procedure to reproduce the timer.

1.Set the current time to 1:00, the timer to ON time 1:05, the function to CD, and volume to STEP 12, respectively. One minute is counted as one second, and the timer is reproduced. The fade-in (when playback is started) is executed at a rate of one step for 1 sec. After completion of fade-in, the fade-out is executed at a rate of one step for 1 sec (WAIT 1 sec inserted).

After completion of fade-out, the power is turned off (after WAIT 1 sec), and the mode is shifted to the standby. The display during operation is the same as that of ordinary timer operation.

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XL-3000/3000C

6. LCD Test Mode (TEST 5)

When the LCD test mode is obtained, all the LCD segments are lighted. Then pressing the "PLAY" button switches display as below.

Lighting of all segments Lighting of odd segments Lighting of even segments

7. Key input diagnosis Test Mode (TEST 6)

When the test mode is obtained, the following is displayed.

This test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode, it is checked whether the "POWER" button was pressed after all the buttons shown below were pressed. If the result is OK, OK is displayed. If any one of keys was not pressed, an error is displayed. In both cases of OK termination or error termination, the mode is shifted to the standby mode if the "POWER" button is pressed subsequently.

All models using this type of microcomputer are not always provided with the same buttons. Since the buttons used are different depending on models, types of buttons to be used are determined by whether SURROUND, and an electric lid are available at the initial setting by MODEL port.

The order of buttons to be pressed is not determined. Accordingly, it is checked whether all buttons have been pressed.

1. PU-IN buttons: REW/PRESET DOWN + CD STOP Since this model is provided with SURROUND (HAVE OR NOT), and electric CD lid, the following 10 buttons are detected as all buttons. PLAY, BASS/TREBLE, FUNCTION, VOLUME UP/DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/CLOSE The OK/NG display of test result is as follows.

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XL-3000/3000C

8. Electric CD lid Aging Test Mode (TEST 8) (Only for model with electric CD lid)

Outline OPEN/CLOSE operations of electric CD lid are repeated. The number of repeated times and time period are monitored. If the lid does not move to the regular position after the specified time, operation is stopped. When an error is detected by [CLID_PRO] during CLOSE, operation is also stopped.

a. POWER ON for function AUX

CD lid position is checked.

CLOSE position: Operation proceeds to the next process. Position other than CLOSE: After the lid moves to CLOSE, operation proceeds to the next process.

b. CD lid operation started

OPEN operation

WAIT 1 second CLOSE operation WAIT 1 second

c. Operations above are repeated.

Specified monitoring time

OPEN operation: 5 seconds CLOSE operation: 5 seconds

d. Display

OPEN>CLOSE is counted as 1. I to 59999 are counted; if the count is over 59999, display is returned to 0 to repeat counting.

Display when the lid does not move to the regular position after the specified time (Ex: Defective operation occurring in the middle of 1538.)

Highlight display of stop when an error is detected by [CLID-PRO] (Ex: Defective operation occurring in the middle of 1538.)

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XL-3000/3000C

NOTES ON SCHEMA TIC DIAGRAM

• Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.

• Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression “capacitance/withstand voltage” is used. (CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type (P.P.): Polypropylene type

• Schematic diagram and Wiring Side of P.W.Board for this model are subject to change for improvement without prior notice.

REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION

NSW801 PICKUP IN ON—OFF SW709 POWER ON—OFF SW710 CD LID OPEN/CLOSE ON—OFF SW711 FF/PRESET UP ON—OFF SW712 CD PLAY/PAUSE/TUNING UP ON—OFF SW713 VOLUME UP ON—OFF SW718 VOLUME DOWN ON—OFF

• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.

1. In the tuner section,

( ) : AM mode

: FM stereo mode

2. In the CD section, the CD is stopped.

• Parts marked with “ ” ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

SW721 BASS/TREBLE ON—OFF SW722 MEMORY SET ON—OFF SW725 CD STOP/TUNING DOWN ON—OFF SW726 REW/PRESET DOWN ON—OFF SW727 FUNCTION ON—OFF SW802 CD LID ON—OFF

FRONT

VIEW

ECB

(S)(G)(D) (1) (2) (3)

2SB562 C 2SC535 C 2SK246 GR KRA102 M KRC102 M KRC104 M KRC107 M KTA1266 GR KTC3199 GR KTC3200 GR

FRONT

VIEW

BCE

2SD2012 Y

Figure 20 TYPES OF TRANSISTOR AND LED

DB5306X

FRONT VIEW

1 2 3

SVC348S KDV147B

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