SHARP XL-1500W Service Manual

XL-1500W

SERVICE MANUAL

No. S6242XL1500W/

COMP ACT AUDIO SYSTEM

MODEL XL-1500W

XL-1500W Compact Audio System consisting of XL-1500W
(main unit) and CP-XL1500H (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................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 10

ADJUSTMENT................................................................................................................................................................ 11

TEST MODE ................................................................................................................................................................... 12

NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 19

TYPES OF TRANSISTOR AND LED.............................................................................................................................. 19

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 20

BLOCK DIAGRAM .......................................................................................................................................................... 21

SCHEMATIC DIAGRAM ................................................................................................................................................. 24

WIRING SIDE OF P.W.BOARD...................................................................................................................................... 32

TROUBLESHOOTING .................................................................................................................................................... 36

FUNCTION TABLE OF IC .............................................................................................................................................. 42

LCD SEGMENT .............................................................................................................................................................. 44

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-1500W

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.

Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

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

QACCA0002SJ00

QACCB0003SJ00

QACCE0002SJZZ

QACCL0002SJ00

– 2 –

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

30 W

Dimensio ns

Width: 226 mm (8-15/16")
Height: 145 mm (5-3/4")
Depth: 292 mm (11-1/2")

Weight

3.3 kg (7.3 lbs.)

Output power

MPO: 30 W (15 W + 15 W) (10 % T.H.D.)
RMS: 20 W (10 W + 10 W ) (10 % T.H.D.)

Output terminals

Speakers: 8 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
Tweeter
10 cm (4") Woofer

Maximum input
power

20 W

Rated input power

10 W

Impedance

8 ohms

Dimensions

Width: 146 mm (5-3/4")
Height: 267 mm (10-9/16")
Depth: 186 mm (7-3/8")

Weight

1.5 kg (3.3 lbs.)/each

TO THE OPERATION MANUAL.

SPECIFICATIONS

XL-1500W

– 3 –

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

XL-1500W

NAMES OF PARTS

Front panel

■

6

8

1

9

11

12

10

2
3
4

3

1

2

5
6

7

4

5

1.CD Compartment

2.CD Open/Close Button

3.On/Stand-by Button

4.Function Selector Button

5.Bass/Treble Selector Button

6.Memory/Set Button

7.Clear Button

8.CD Stop, Tuning Down Button

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

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

11.Volume Up and Down Buttons

12.CD Play or Pause, Tuning Up Button

Display

■

1.Timer Play Indic a tor

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

8

7

9

Rear panel

■

1
2
3

4

6
7

8

5

9

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

1

1.CD Digital Output Socket

2.Headphone Socket

3.AM Aerial Terminal

4.Aerial Earth Terminal

5.FM 75 Ohms Aerial Socket

6.Video/Auxil iary (Audio Signal) Input Sockets

7.Speaker Terminals

8.AC Power Input Socket

9.AC Voltage Selector

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:

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

Left speaker

Right speaker

2

3

4

– 4 –

10

XL-1500W

Remote control

■

1
2

3
4

5
6

7
8

9

11
12

13
14

15
16

17
18

19

20

24 25

26 27

21
22

23

Remote Control Transmitter

1.

On/Stand-by Button

2.

CD Button

3.

Tuner Button

4.

5.Timer Button

6.Clock Button

Memory Button

7.

8.Dimmer Button

9.Surround Button

Volume Up and Down Buttons

10.

Video/Auxiliary Button

11.

Band Selector Button

12.

Clear Button

13.

14.Sleep Button

15.Random/Repeat Button

CD Open/Close Button

16.

Tuner Preset Up Button

17.

CD Track Down Button

18.

CD Fast Reverse, Tuning Down Button

19.

CD Play Button

20.

CD Track Up Button

21.

CD Fast Forw ard, Tuning Up Button

22.

CD Pause Button

23.

CD Stop Button

24.

Tuner Preset Down Button

25.

Bass Up and Down Buttons

26.

Treble Up and Down Buttons

27.

Buttons with " " mark in the illustration can be operated on the re­mote control only.

– 5 –

XL-1500W

OPERATION MANUAL

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.

1

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

2

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.

3

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

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

4

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.)

●

To confirm the time display when the p ower is on :

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

Note:

The "0:00" or 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. If the time display is
flashing, step 2 (for selecting the 24-hour or 12-hour display) will be
skipped.

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

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

Remote control

Battery installation

■

1 Remove the battery cover.
2 Insert the supplied batteries according to the direction indi-

cated in the battery compartment.

When inserting or removing the batteries, push them towards the

battery terminals.

3 Replace the cover.

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 is not to be used for long periods
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.

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 belo w:

Press the ON/STAND-BY button. Does the power turn on? Now, you
can enjoy the music.

Remote sensor

0.2 m - 6 m
(8" - 20')

– 6 –

System connections

XL-1500W

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 socket. 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.

Wall socket

1

2

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 sup plied. Use of a
power lead other than the one supplied may cause an elec­tric shock or fire.

AC Plug Adapt or

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 ).

Note for users in Australia and New Zealand:

An AC plug adaptor is not supplied if the lead has an Australian
Standard plug.

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:
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

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.

– 7 –

Cover,Rear Panel

Top Cabinet

(B1) x1
ø3 x10mm

(A1) x2
ø3 x10mm

(B1) x1
ø3 x10mm

(B1) x1
ø3 x6mm

(C2) x4
ø3 x10mm

Bottom Cabinet

(A1) x2
ø3 x10mm

Cover,
Rear Panel

TOP Cabinet

(A2) x8

(A2) x1

,

Hook
(C3) x4

(C1) x5
ø3 x6mm

Bottom Cabinet

Chassis

Bottom
Cabinet

Chassis

1

2

XL-1500W

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.

STEP

REMOVAL

1 Top Cabinet 1. Screw .................. (A1) x4 8-1,2

2 Cover,Rear panel 1. Screw .................. (B1) x3 8-1

3 Chassis 1. Screw .................. (C1) x5 8-3

4 Tuner PWB 1. Screw .................. (D1) x1 9-1

5 Terminal PWB 1. Screw .................. (E1) x2 9-1

6 Rear Panel 1. Screw .................. (F1) x1 9-1

7 Main PWB 1. Screw .................. (G1) x6 9-1

8 CD PWB 1. Flat Cable............ (H1) x1 9-2

9 CD Mechanism 1. Screw .................. (J1) x4 9-2

10 LED PWB 1. Screw .................. (K1) x2 9-2

11 Switch PWB 1. Hook.................... (L1) x2 9-3

12 Display PWB 1. Screw .................. (M1) x6 9-3

13 Gear Box 1. Hook .................... (N1) x3 9-3

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

FIGURE

2. Socket ................. (A2) x9 8-2

2. Screw .................. (C2) x4 8-1

3. Hook .................... (C3) x4 8-3

2. Socket ................. (D2) x1

2. Socket ................. (E2) x1

2. Screw .................. (G2) x2

3. Socket ................. (G3) x2

2. Socket ................. (H2) x2

3. Screw .................. (H3) x4

2. Socket ................. (L2) x1

2. Socket ................. (M2) x1

Figure 8-1

Figure 8-2

Figure 8-3

– 8 –

(G1) x6

Display PWB

CD
Mechanism

Top Cabinet

Holder PWB

CD PWB

LED PWB

Holder,
Indicator Panel,CD

(J1) x4
ø2.5 x10mm

(H1) x1

(H2) x1

(H2) x1

(H3) x4
ø2.5 x10mm

(K1) x2
ø2.5 x10mm

,

,

( A3 ) x4
ø3.5 x12mm

Tweeter

Net Frame
( A1 ) x1

Front Panel
( A2 ) x1

Woofer

Screwdriver

ø3 x8mm

(E2) x1

(G3) x2

(G2) x2
ø3 x10mm

(E1) x2
ø3 x10mm

Terminal PWB

Rear Panel

(F1) x1
ø3 x6mm

(D1) x1
ø3 x10mm

XL-1500W

Main PWB

Switch
PWB

Switch

Pull

Hook
(L1) x2

Hook
(L1) x2

Switch
PWB

Pull

(L2) x1

Figure 9-1

Gear Box

Chassis

Gear Box

Pull

Hook
(N1) x3

Hook
(N1) x3

Top Cabinet

Pull

(D2) x1

Tuner PWB

(M2) x1

(M1) x6
ø2.5 x10mm

Display PWB

Figure 9-2

Figure 9-3

STEP REMOVAL

1 Speaker 1. Net Frame ........... (A1) x1 9-4

PROCEDURE

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

3. Screw .................. (A3) x4

FIGURE

Figure 9-4

– 9 –

XL-1500W

REMOVING AND REINSTALLING THE MAIN PARTS

How to remove the CD lid (See Fig. 10-1.)

Perform steps 1 to 13 of the disassembly method to remove

the gear box. (See page 8,9)

1. Remove the screws (A1) x 2 pcs., to remove the CD lid
motor.

2. Remove the hooks (A2) x 3 pcs., to remove the worm wheel.

Caution:

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

Hook
(A2) x3

Worm Wheel

(A1) x2
ø2 x3mm

CD MECHANISM SECTION (See Fig. 10-2.)

Perform steps 1 to 9 of the disassembly method to remove the
CD mechanism. (See page 8,9)

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 unit.

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.

(A1) x4

CD Lid Motor

Figure 10-1

Mechanism Cover

(A2) x2
ø2.6 x6mm

CD Mechanism

Shaft
(A3) x1

Gear
(A5) x1

– 10 –

Stop Washer
(A4) x1

Pickup unit

Figure 10-2

ADJUSTMENT

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

• 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 6 522 kHz
2 108.00 MHz 7 1,620 kHz
3 98.00 MHz 8 990 kHz
4 90.00 MHz 9 603 kHz
5 106.00 MHz 10 1,404 kHz

Frequency Display

FM

Preset No.

Setting/

Adjusting

Parts

Instrument

Connection

AM

XL-1500W

• 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

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 2.2 V ± 0.7 V TP301
108 MHz 108 MHz 7.3 V ± 1.0 V TP301

Display

Adjusting

Parts

Check Point Instrument

Instrument

Connection

Terminal

Connection

ANTENNA
TERMINAL

TP301

SO301

OHMS

20

IC302

FM

75

FM Mute
Level

TUNER PWB-B1

GND

FE301

VR351

T351

AM IF

AM

T302

AM
Tracking fL

T306

AM Band
Coverage fL

IC303

Figure 11 ADJUSTMENT POINTS

– 11 –

XL-1500W

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 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/STAND-BY on with remote control
buttons, test modes are not obtained.

[Ordinary test mode]

1. CD Test Mode (TEST 1).....................................BASS/TREBLE + STOP

2. Tuner Test Mode (TEST 2).................................BASS/TREBLE + VOL+

3. Electronic Volume Test Mode (TEST 3)............. BASS/TREBLE + VOL–

4. Timer Test Mode (TEST 4).................................MEMORY/SET + STOP

5. LCD Test Mode (TEST 5)...................................MEMORY/SET + VOL–

6. Electric CD Lid Aging Test Mode (TEST 8)........ MEMORY/SET + VOL+

[Self-diagnosis Test Mode]

1. Button input diagnosis test mode (TEST6).…....MEMORY/SET + PLAY

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/STAND­BY 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.

"ON/STAND-BY"......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

* 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.

– 12 –

XL-1500W

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.

"ON/STAND-BY" .....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.

"ON/STAND-BY" .....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.

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.

"ON/STAND-BY" .....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.

– 13 –

XL-1500W

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.

"ON/STAND-BY"......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 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.

"ON/STAND-BY"......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.

– 14 –

XL-1500W

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.

"ON/STAND-BY"......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-1500W

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.

• 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.

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

CH

1 FM 87.50 MHz
2 FM108.00 MHz
3 FM FM 98.00 MHz
4 STEREO FM 90.00 MHz
5 FM106.00 MHz

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

BAND

FM

BAND

6 AM 522 kHz
7 AM1620 kHz
8 AM AM 990 kHz
9 AM 603 kHz
10 AM1404 kHz

AMCH

CH

16-25
26 FM106.00 MHz

27 FM 90.00 MHz
28 FM FM 98.00 MHz
29 MONO FM108.00 MHz
30 FM 87.50 MHz

BAND

FM

– 16 –

XL-1500W

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(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.

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

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

– 17 –