Sharp XL-3000-W Service manual

XL-3000W

SERVICE MANUAL

No. S5132XL3000W/

COMP ACT AUDIO SYSTEM

MODEL XL-3000W

XL-3000W Compact Audio System consisting of XL-3000W (main unit) and CP-XL3000H (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

SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2

VOLTAGE SELECTION.................................................................................................................................................... 2

AC POWER CORD AND PLUG ADAPTOR ..................................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................ 3

NAMES OF PARTS .......................................................................................................................................................... 4

OPERATION MANUAL..................................................................................................................................................... 6

DISASSEMBLY............................................................................................................................................................... 10

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 12

ADJUSTMENT................................................................................................................................................................ 13

TEST MODE ................................................................................................................................................................... 14

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 21

TYPES OF TRANSISTOR AND LED.............................................................................................................................. 21

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

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

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

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 39

TROUBLESHOOTING .................................................................................................................................................... 40

FUNCTION TABLE OF IC .............................................................................................................................................. 46

LCD SEGMENT .............................................................................................................................................................. 55

PARTS GUIDE/EXPLODED VIEW

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-3000W

CAUTION Laser

Material:

Diode Properties

Material: GaAIAs

Wavelength: 780 nm Emission Duration: continuous Laser Output: max. 0.6 mW

●

This Compact Audio System is classified as a CLASS 1 LASER product.

●

The CLASS 1 LASER PRODUCT label is located on the rear cover.

●

Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

As the laser beam used in this compact disc player is harmful to

the eyes, do not attempt to disassemble the cabinet. Refer servicing to qualified personnel only.

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE. ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT INSTRUMENT.

SAFETY PRECAUTION FOR SERVICE MANUAL

This product is classified as a CLASS 1 LASER PRODUCT.

Precaution to be taken when replacing and servicing the Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output is less than Class 1 but the laser component is capable of emitting radiation exceeding the limit for Class1. Therefore it is important that the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.

(1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than

the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens. (2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping. (3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup. (4) Under no circumstances look directly into the Pickup Lens at any time. (5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in

hazardous radiation exposure.

VOLTAGE SELECTION

Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage as follows, Turn the selector with a screwdriver unit the appropriate voltage number appears in the window (110 V,127 V, 220 V or 230 V - 240 V AC).

AC POWER CORD AND PLUG ADAPTOR

QACCA0001SJ00

QACCB0001SJ00

QPLGA0250AFZZ QPLGA0253AFZZ

– 2 –

QACCE0001SJZZ

QACCL0002AW00

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

■

General

■

Amplifier

■

CD player

■

Tuner

■

Speaker

Power source AC 110, 127, 220, 230 - 240 V, 50/60 Hz Power

consumption

48 W

Dimensio ns Width: 230 mm (9-1/16")

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

Weight 3.2 kg (7.1 lbs.)

Output power MPO: 60 W (30 W + 30 W) (10 % T.H.D.)

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

Output terminals Speakers: 6 ohms

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

CD digital output (optical)

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: 88 - 108 MHz

AM: 531 - 1,602 kHz

Type 2-way type speaker system

5 cm (2") Tweeter 10 cm (4") Woofer

Maximum input power

40 W

Rated input power 20 W Impedance 6 ohms Dimensions Width: 140 mm (5-9/16")

Height: 288 mm (11-3/8") Depth: 187 mm (7-3/8")

Weight 2.0 kg (4.4 lbs.)/each

TO THE OPERATION MANUAL.

SPECIFICATIONS

XL-3000W

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

– 3 –

XL-3000W

■

Front panel

1.CD Compartment

2.Volume Up and Down Buttons

3.On/Stand-by 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 Indicato r

2 3 4

7 8 9

10 11

■

Rear panel

1.CD Digital Output Socket

2.Cooling Fan

3.Headphone Socket

4.AM Aerial Terminal

5.Aerial Earth Terminal

6.FM 75 Ohms Aerial Socket

7.Video/Auxiliary (Audio Signal) Input Sockets

8.AC Voltage Selector

9.AC Power Input Socket

10.Speaker Terminals

■

Speaker system

1.Tweeter

2.Woofer

3.Bass Reflex Duct

4.Speaker Terminals

Placing the speaker system:

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

5 6

9 10

The rating label is located on the bottom of the unit.

Speaker grilles are removable:

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

Left speaker Right speaker

NAMES OF PARTS

– 4 –

XL-3000W

■

Remote control

1.Remote Control Transmitter

2.On/Stand-by Button

3.CD Button

4.Tuner Button

5.Timer Button

6.Clock Button

7.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 remote control only. Other buttons can be operated both on the main unit and the remote control.

1 2

3 4

5 6

7 8

11 12

13 14

15 16

21 22

18 19

24 25

26 27

– 5 –

XL-3000W

Setting the Clock

This may be operated only with the remote control. In this example, the clock is set for the 24-hour (0:00) 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 24-hour or 12-hour display:

Press the CLOCK button and within 3 seconds, pres s the MEMORY button.

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

MEMORY button.

"0:00" The 24-hour display will appear.

(0:00 - 23:59) "AM 12:00" The 12-hour display will appear. (AM 12:00 - PM 11:59) Note that this can only be set when the unit is first installed or it

has been reset.

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

●

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

Within 1 minute, press the PRESET ( or ) button 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

■

Battery installation

Precautions for battery use:

●

Replace all old batteries with new ones at the same time.

●

Do not mix old and new batteries.

●

Remove the batteries if the unit will not be used for long per iods of time. This will prevent potential damage due to battery leakage.

Caution:

●

Do not use rechargeable batteries (nickel-cadmium battery, etc.)

●

Installing the batteries incorrectly may cause the unit to malfunction.

Notes concerning use:

●

Replace the batteries if the operating distance is reduced or if the operation becomes erratic. Purchase 2 "AAA" size batteries (UM4, R03, HP-16 or similar).

●

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.

1 Remove the battery cover. 2 Insert the batteries according to the direction indicated in

the battery compartment.

When inserting or removing the batteries, push them towards the

battery terminals.

3 Replace the cover.

Troubleshooting

■

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 programme.

●

After the above operation, interval span setting for AM will be returned to 9 kHz (50 kHz for FM) automatically.

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 ON/STAND-BY button to enter the power stand-by mode. Unplug the AC power lead from the AC INPUT socket on the unit. Whilst pressing down the MEMORY/SET button and the button, plug the AC power lead into the AC INPUT socket on the unit.

AC INPUT

OPERATION MANUAL

– 6 –

XL-3000W

System Connections (continued)

■

Setting the AC voltage selector

Check the setting of the AC voltage selector located on the rear panel before plugging the unit into a wall soc ket. If necessary, adjust the selector to correspond to the AC power voltage used in your area.

Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127 V, 220 V or 230 V

- 240 V AC).

■

Connecting the AC power lead

After checking all the connections have been made correctly, connect the AC power lead to the AC power input socket, then into the wall socket.

Notes:

●

Unplug the AC power lead from the wall socket if the unit will not be in use for a prolonged period of time.

●

Never use a power lead other than the one supplied. Use of a power lead other than the one supplied may cause an electric shock or fire.

AC Plug Adaptor

In areas (or countries) where a wall socket as shown in illustration is used, connect the unit using the AC plug adaptor supplied with the unit, as illustrated. The AC plug adaptor is not included in areas where the wall socket and AC power plug can be directly connected (see illustration ).

Wall socket

System Connecti on s

Right speaker

Left speaker

FM aerial

AM loop aerial

VCR, DVD, etc.

MD recorder

not supplied

Right speaker

Left speaker

Black

White line

To a wall socket

– 7 –

XL-3000W

■

Setting the AM/FM interval

The International Telecommunication Union ( ITU) has established that member countries should maintain either a 10 kHz or 9 kHz interval between broadcasting frequencies of AM stations and 100 kHz or 50 kHz for FM stations. The illustration shows the 50/9 kHz zones (regions 1 and 3), and the 100/10 kHz zone (region 2).

This product is not equipped with a span selector. However, it will be adjusted to a 9 kHz AM (50 kHz FM) interval when shipped from the factory. Before using the unit, be sure to set it to the AM/FM tuning interval (span) used in your area.

To check the tuning span currently selected:

T o change from a 9 kHz AM (50 kHz FM) interval to a 10 kHz AM (100 kHz FM) interval:

To return to a 9 kHz AM (50 kHz FM) interval:

Caution:

●

When the unit is left for a few hours after the span has been switched and the AC power lead disconnected, the AM span will be automatically returned to 9 kHz (FM span to 50 kHz). If this happens, set the span again.

●

When the span is switched, all the memorised stations will be cancelled.

1 Press the ON/STAND-BY button to turn the power on. 2 Press the FUNCTION button until "AM" appears on the display.

●

If "AM 531 kHz" is displayed, it means that AM stations have been adjusted for a 9 kHz span and FM stations for 50 kHz span. If "AM 530 kHz" is displayed, AM stations have been adjusted for a 10 kHz span and FM stations for 100 kHz span.

1 Press the ON/STAND-BY button to enter the stand-by mode. 2 Hold down the button and the MEMORY/SET button for at

least 4 seconds. Release the buttons when "AM SP 10 kHz" and "FM SP 100 kHz" are displayed alternately.

●

The clock display will reappear.

1 Press the ON/STAND-BY button to enter the stand-by mode. 2 Hold down the button and the MEMORY/SET button for at

least 4 seconds. Release the buttons when "AM SP 9 kHz" and "FM SP 50 kHz" are displayed alternately.

●

The clock display will reappear.

System Connections (continued)

– 8 –

XL-3000W

Listening to a CD

Press the ON/STA N D-BY button to turn the power on.

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

When operating with the remote control, press the CD button.

Press the (OPEN/CLOSE) button to open the CD compartment.

Place a CD on the spindle, label si de up .

Be sure to place 8 cm (3") disc in the middle of a disc holder.

Press the (OPEN/ CLOSE) button to

close the CD compartment.

Total number of tracks

Total playing time

Press the ( ) button to start playbac k fr om tr ac k 1.

When the last track on the disc has finished playing, the CD player will stop automatically.

12 cm (5")

8 cm (3")

Listening to the Radio

To receive an FM stereo transmission:

Press the FUNCTION (BAND) button to display the "ST" indicator.

●

" " will appear when an FM broadcast is in stereo.

●

If the FM reception is weak, press the FUNCTION (BAND) button to extinguish the "ST" indicator. The reception changes to monaural, and the sound becomes clearer.

After use:

Press the ON/STAND-BY button to enter the power stand-by mode.

FM stereo mode indicator

FM stereo receiving indicator

Press the ON/STA N D-BY button to turn the power on.

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

When operating with the remote control, press the TUNER button, and then the BAND button to select "FM" or "AM".

Press the TUN ING ( or ) bu tt on to tune in to the desired station.

Manual tuning:

Press the TUNING button as many times as required to tune in to the desired station.

Auto tuning:

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.

Notes:

●

This can be operated by pressing the TUN. ( or ) button on the remote control.

●

When radio interference occurs, auto scan tuning may stop automatically at that point.

●

Auto scan tuning will skip weak signal stations.

●

To stop the auto tuning, press the TUNING button again.

– 9 –

XL-3000W

(B1) x2 ø2.5 x8mm

(B4) x2

(B4) x5

(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

(B4) x1

Power PWB

Fan PWB

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 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

(A1) x2 ø3 x10mm

Figure 10-1

Fan Motor

(A3) x2 ø3 x10mm

(A4) x2 ø3 x8mm

Rear Panel

(A2) x4

Terminal PWB

STEP REMOVAL

Rear Panel/Terminal PWB/

Fan Motor 2. Socket ................. (A2) x4

2 Top Cabinet 1. Screw .................. (B1) x2 10-2

3 Tuner PWB 1. Screw .................. (C1) x2 11-1

4 Power PWB 1. Socket ................. (D1) x1 11-1

5 Fan PWB 1. Socket ................. (E1) x1 11-1

6 Main PWB 1. Socket ................. (F1) x1 11-1

7 Display PWB 1. Screw .................. (G1) x4 11-2

8 CD Mechanism 1. Screw .................. (H1) x4 11-2

9 Gear Box 1. Screw .................. (J1) x1 11-2

10 LED PWB 1. Screw .................. (K1) x1 11-2

PROCEDURE

1. Screw .................. (A1) x7 10-1

3. Screw .................. (A3) x3

4. Screw .................. (A4) x2 10-1

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

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

4. Socket ................. (B4) x9

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

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

2. Screw .................. (E2) x2

2. Screw .................. (F2) x8

2. Hook .................... (G2) x4

2. Holder.................. (J2) x1

3. Lever ................... (J3) x1

4. Screw .................. (J4) x3

5. Lever ................... (J5) x1

FIGURE

10-1,2

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.

Figure 10-2

– 10 –

XL-3000W

(H1) x4 ø2.5 x10mm

(J1) x1 ø3 x8mm

(J2) x1

(J5) x1

(J4) x2 ø2.5 x10mm

(G1) x4 ø2.5 x10mm

Hook (G2) x4

Display PWB

LED PWB

Gear Box

CD Mechanism

Top Cabinet

Holder PWB

(J3) x1

(K1) x1 ø2.5 x10mm

Bracket

(J4) x1 ø3 x8mm

Switch PWB

Power PWB

(E1) x1

(E2) x2 ø3 x6mm

Fan

PWB

Bracket

(F2) x7 ø3 x8mm

Hook

(D2) x1

Bracket

Main PWB

(F1) x1

Holder PWB

Figure 11-1

(D1) x1

(C1) x1 ø3 x8mm

(F2) x1 ø3 x14mm

Tuner PWB

Bottom Cabinet

(C1) x1 ø3 x6mm

(C2) x1

Tuner PWB

Main PWB

Net Frame ( A1 ) x1

Front Panel ( A2 ) x1

( A3 ) x2 ø4 x12mm

( A3 ) x4 ø4 x12mm

Figure 11-3

Tweeter

Woofer

Screwdriver

STEP REMOVAL

1 Speaker 1. Net Frame ........... (A1) x1 11-3

– 11 –

Figure 11-2

PROCEDURE

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

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

FIGURE

XL-3000W

(A1) x1 ø2.5 x10mm

(A1) x3 ø2.5 x12mm

(A2) x1

(A3) x1

(A4) x2 ø2 x5mm

Switch PWB

CD Lid Motor

REMOVING AND REINSTALLING THE MAIN PARTS

How to remove the CD lid (See Fig. 12-1.)

Perform steps 1,2 and 8 of the disassembly method to remove the gear box. (See page 10,11)

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.)

CD MECHANISM SECTION (See Fig. 12-2.)

Perform steps 1,2 and 7 of the disassembly method to remove the CD mechanism. (See page 10,11)

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:

(A1) x4

Figure 12-1

Mechanism Cover

(A2) x2 ø2.6 x6mm

CD Mechanism

Shaft (A3) x1

Gear (A5) x1

Stop Washer (A4) x1

Pickup unit

Figure 12-2

– 12 –

ADJUSTMENT

GND

OHMS

ANTENNA TERMINAL

SO301

T302

IC301

T306

T304

IC303

T351

L303

L302

VR351

TP301

FM Mute Level

AM Band Coverage fL

FM Band Coverage fL

AM Tracking fL

AM IF

FM IF

FM OSC.

FM ANT. FM RF

IC302

TUNER PWB-A2

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 1,602 kHz T351 *1

AM Band — 531 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 Detection

Signal generator: 10.7 MHz, FM sweep generator

Test

Stage

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

• FM RF

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

FM Band — 87.50 MHz (fL): L303 *1

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

Frequency Display

Frequency Frequency

Frequency

(10~30 db)

Display

Frequency

Display

Setting/

Adjusting

Parts

Setting/

Adjusting

Parts

the core of IC301 T304 fully counterclockwise.)

Setting/

Adjusting

Parts

Instrument

Connection

Instrument

Connection

Instrument

Connection

XL-3000W

• FM Mute Level

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

Frequency

98.00 MHz 98.00 MHz VR351*1 Input: SO301 (25±1 dBµV) Output: Speaker

Display

*1. Adjust so that an output signal appears.

• Check FM VT

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

Frequency

87.5 MHz 87.5 MHz 3.4 V ± 0.1 V TP301 108 MHz 108 MHz 7.8 V ± 1.0 V TP301

Display

• Setting the Test Mode

Keeping the FF/FWD button and MEMORY/SET button pressed, turn on ON/STAND-BY. 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.

1 87.50 MHz 6 531 kHz 2 108.00 MHz 7 1,602 kHz 3 98.00 MHz 8 990 kHz 4 90.20 MHz 9 612 kHz 5 106.00 MHz 10 1,404 kHz

Adjusting

Parts

Check Point Instrument

Preset No.

Instrument

Connection

Terminal

Connection

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

Figure 13-1 ADJUSTMENT POINTS

– 13 –

XL-3000W

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 selfjudgment in case of final product inspection.

1. Turning on the test mode

For obtaining each test mode, press the ON/STAND-BY button, while keeping pressing the following two buttons in the ordinary stand-by mode (power off ). In this case, the main unit buttons are valid. When turning the ON/STANDBY 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)

.......................FUNCTION + VOLUME

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 ON/STAND-BY 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.

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

– 14 –

* In case of initialization, the pickup is moved toward the

inner periphery. Any buttons other than "ON/STAND-BY" 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 ON/STAND-BY button to end the test mode, or press the CD STOP button to return to step 1. Any other operations are inhibited.

XL-3000W

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

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.

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.

– 15 –

XL-3000W

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.

6. Step 6 Mode

Press the FUNCTION button during step 5 operation to set EC/FC bit to "H" by PRESET 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.

– 16 –

XL-3000W

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.

– 17 –

XL-3000W

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 "ON/STAND-BY" 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.

" + "MEMORY/SET" KEY SPAN CHANGE)

("FF (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.

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

1 FM 87.50 MHz 2 FM108.00 MHz 3 FM FM 98.00 MHz 4 STEREO FM 90.20 MHz 5 FM106.00 MHz

6 AM 531 kHz 7 AM1602 kHz 8 AM AM 990 kHz 9 AM 612 kHz 10 AM1404 kHz

16-25 26 FM106.00 MHz

27 FM 90.20 MHz 28 FM FM 98.00 MHz 29 MONO FM108.00 MHz 30 FM 87.50 MHz

BAND

AMCH

• The TUNER TEST2 mode is obtained with

+ MEMORY + ON/STAND-BY.

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.

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

– 18 –

XL-3000W

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 startup 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-

Volume-14 dB (STEP 23) Volume-0 (STEP 30)

∞ (STEP 0)

<->

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

(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 fadeout 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.

– 19 –

XL-3000W

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 "ON/STAND-BY" 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 "ON/STAND-BY" 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 RDS, 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), RDS (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.

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.)

– 20 –

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

1538.)

NOTES ON SCHEMA TIC DIAGRAM

XL-3000W

• 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 SW651 VOLTAGE SELECTOR 110V SW709 ON/STAND-BY 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

• 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.

SW718 VOLUME DOWN ON—OFF 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 KTA1268 GR KTC3199 GR KTC3200 GR

FRONT

VIEW

BCE

2SD2012 Y

Figure 21 TYPES OF TRANSISTOR AND LED

DB5306X

FRONT VIEW

1 2 3

SVC348S KDV147C

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