Sharp XL-3000V User Manual

XL-3000V

SERVICE MANUAL

No. S8149XL3000V/

VIDEO CD COMPACT AUDIO SYSTEM

MODEL XL-3000V

XL-3000V Video CD Compact Audio System consisting of XL­3000V (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.

NTSC/PAL

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 ................................................................................................................................................................... 16

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

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

BLOCK DIAGRAM .......................................................................................................................................................... 20

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

WIRING SIDE OF P.W.BOARD...................................................................................................................................... 36

WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 41

TROUBLESHOOTING .................................................................................................................................................... 42

FUNCTION TABLE OF IC .............................................................................................................................................. 48

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

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-3000V

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.

CAUTION Laser Diode Properties

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

●

This Video CD 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.

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

QACCE0001SJZZ

QPLGA0250AFZZ

QACCA0001SJ00

QACCB0001SJ00

QPLGA0253AFZZ

– 2 –

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

SPECIFICATIONS

General

■

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

consumption
Dimensions Width: 230 mm (9-1/16")

Weight 3.3 kg (7.3 lbs.)

Amplifier

■

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

Output terminals Speakers: 6 ohms

Input terminals Video/Auxiliary (audio signal): 500 mV/47

Video CD

■

Video output
format

56 W

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

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

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

CD digital output (optical)
Video out: 1 Vp-p (75 ohms)

kohms

PAL/NTSC

XL-3000V

CD player

■

Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser

D/A converter 1-bit D/A converter
Frequency

response
Dynamic range 90 dB (1 kHz)

Tuner

■

Frequency range FM: 88 - 108 MHz

Speaker

■

Type 2-way type speaker system
5 cm (2") Tweeter

Maximum input
power

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

Weight 2.3 kg (5.1 lbs.)/each

pickup

20 - 20,000 Hz

AM: 531 - 1,602 kHz

10 cm (4") Woofer
40 W

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

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

– 3 –

XL-3000V

NAMES OF PARTS

Front panel

■

6

7

1

8

10
11

9

2
3

5

4

6

1

2

4

3

5

1.Disc Compartment

2.Volume Up and Down Buttons

3.On/Stand-by Butt on

4.Function Selector Button

5.Memory/Set Button

6.Bass/Treble Selector Button

7.Video CD/CD Play or Pause,
Tuning Up Button

8.Video CD Stop or Return, CD Stop,
Tuning Down Button

9.Video CD Skip or Previous, CD Track Down,
Tuner Preset Down Butto n

10.Disc Compartment Cover Open/Close Button

11.Video CD Skip or Next, CD Track Up,
Tuner Preset Up Button

Display

■

1.Timer Play Indicator

2.Sleep Indicator

3.Video CD/CD Random Play Indicator

4.Memory Indicator

5.FM Stereo Mode Indicator

6.Video CD/CD Play Indicator

7.Video CD/CD Repeat Play Indicator

8.FM Stereo Receiving Indicator

9.Surround Indicator

8
9

7

Rear panel

■

1

6

2
3
4

5

7

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

8

9
10
11

1.CD Digital Output Socket

2.AM Aerial Terminal

3.Aerial Earth Terminal

4.FM 75 Ohms Aerial Socket

5.Headphone Socket

6.Video Output Socket

7.Cooling Fan

8.Video/Auxiliary (Audio Signal) Input Sockets

9.AC Voltage Selector

10.AC Power Input Socket

11.Speaker Terminals

Speaker system

■

1.Tweeter

2.Woofer

3.Bass Reflex Duct

4.Speaker Terminals

1

2

3

4

– 4 –

1
2

3
4

5
6

7
8

11
12

13
14
15
16
17

19
20

21

22

23

24
25

26 27

18

9

10

28
29

30
31

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.

32

33
34
35

Remote control

■

1.Remote Control Transmitter

2.On/Stand-by Button

3.Video CD/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. Video CD TV Type Button

13.Band Selector Button

14.Video CD/CD Clear Button

15.Sleep Button

16.Random/Repeat Button

17.Disc Compartment Cover Open/Close Button

18.Audio Mode Button

19.Tuner Preset Up Button

20.Video CD Skip or Previous, CD Track Down Button

21.Video CD/CD Fast Reverse, Tuning Down Button

22.Video CD/CD Play Button

23.Video CD Skip or Next, CD Track Up Button

24.Video CD/CD Fast Forward, Tuning Up Button

25.Video CD/CD Pause Button

26.Video CD Stop or Return, CD Stop Button

27.Tuner Preset Down Button

28.Bass Up and Down Buttons

29.Video CD/CD Direct Search Buttons

30. Video C D In tro Button

31.Video CD Track Digest Button

32.Treble Up and Down Buttons

33. Video CD Playback Control Auto/Off Button

34.Video CD/CD Display Button

35.Video CD Time Search Button

XL-3000V

– 5 –

XL-3000V

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 the previous operation, unplug and

plug in the unit, and then turn the power on.

Note:

If neither operation above restores the unit, clear all the memory by
resetting it.

■

Clearing all the memory (reset)

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

mode.

2 Unplug the AC power lead from the AC INPUT socket on the

unit.

3 Whilst pressing down the MEMORY/SET button and the but-

ton, plug the AC power lead into the AC INPUT socket on the
unit.

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.

AC INPUT

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.

OPERATION MANUAL

3

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".

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 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:

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 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.

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 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.

– 6 –

System Connecti on s

Right speaker

AM loop aerial

FM aerial

Left speaker

XL-3000V

MD recorder

not supplied

TV

Right speaker

Black wire
with white dots

Black wire

Left speaker

System Connections (continued)

Placing the speaker system

■

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

Left speaker Right speaker

Speaker grilles are removable:

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

To a wall socket

TV/monitor connection

■

If the TV/monitor has a video input, connect it to VIDEO OUT socket
on the rear of the unit.

TV

To video
input socket

Video cable

Notes:

●

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

If colour variation occurs...

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

If the colour 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 colours may appear on the TV
screen.

Note:

If the TV/monitor does not have a video input, the VIDEO OUT
socket on the unit should be connected to a VCR with a video input,
which in turn should be connected to the TV/monitor through the T V
ANTENNA/CABLE input. (Be sure to turn on the VCR, and set the
VCR's input mode to "auxiliary".)

– 7 –

XL-3000V

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 socket. If necessary, adjust
the selector to correspond to the AC power voltage used in your
area.

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

- 240 V AC).

Connecting the AC po wer 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 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 ).

System Connections (continued)

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:

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.

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

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.

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

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.

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.

– 8 –

Listening to a CD

XL-3000V

1

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

2

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

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

3

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

4

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.

5

Press the (OPEN/
CLOSE) button to

close the disc com­partment.

6

Press the ( ) button to start playback fr om tr ack 1.

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

To interrupt playback:
Main unit operation:

Press the button.
To resume playback from the same point, press the button again.

Remote control operation:

Press the button.
To resume playback from the same point, press the button.

To stop playback:

Press the button.

To remove the CD:

Whilst in the stop mode, press the (OPEN/CLOSE) button.
Press the disc eject button and remove the CD.

Total number of

racks

t

Total playing time

Listening to the Radio

FM stereo mode indicator

FM stereo receiving indicator

1

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

2

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".

3

Press the TUN ING ( or ) button 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.

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.

– 9 –

XL-3000V

(B1) x2
ø2.5 x8mm

(B4) x2

(B6) x1

(B4) x4

(B3) x1

(B3) x1

Main PWB

(A3) x1
ø3 x10mm

Lug

Hook
(B2) x3

HooK
(B2) x2

(B4) x1

CD Mechanism

Hook

Up

Slide

Top Cabinet

Top Cabinet

Bottom Cabinet

Bottom Cabinet

(B4) x1

Power
PWB

Video PWB

(B4) x1

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) x3
ø3 x12mm

(A4) x2
ø3 x8mm

Rear Panel

(A2) x4

Terminal PWB

STEP REMOVAL

1 Rear Panel/ 1. Screw .................. (A1) x7 10-1

Terminal PWB/ 2. Socket ................. (A2) x4

Fan Motor 3. Screw .................. (A3) x4

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

Video PWB 2. Hook .................... (B2) x5

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

4 Power PWB 1. Socket ................. (D1) x2 11-1

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

6 Display PWB 1. Screw .................. (F1) x4 11-2

7 CD Mechanism 1. Screw .................. (G1) x4 11-2

8 Gear Box 1. Screw .................. (H1) x1 11-2

9 LED PWB 1. Screw .................. (J1) x1 11-2

PROCEDURE

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

3. Flat Cable............ (B3) x2

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

5. Screw .................. (B5) x3 11-1

6. Socket ................. (B6) x1 10-2

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) x3

5. Lever ................... (H5) 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-3000V

( A3 ) x2
ø4 x12mm

( A3 ) x4
ø4 x12mm

Tweeter

Woofer

Net Frame
( A1 ) x1

Front Panel
( A2 ) x1

Screwdriver

(B5) x3
ø3 x6mm

Video
PWB

Bracket

Power PWB

(E2) x7
ø3 x8mm

Hook
(D2) x1

Bracket

Main PWB

Tuner PWB

(D1) x2

(C1) x1
ø3 x8mm

Holder

PWB

(E1) x1

(C2) x1

Tuner PWB

Main PWB

Bottom Cabinet

(C1) x1
ø3 x6mm

Washer

(E2) x1
ø3 x14mm

(H1) x1
ø3 x8mm

(J1) x1
ø2.5 x10mm

(H3) x1

Switch
PWB

(H4) x1
ø2.5 x8mm

(H2) x1

LED PWB

CD Mechanism

Gear Box

Bracket

(H4) x2
ø2.5 x10mm

(H5) x1

Shield
Cover

Display PWB

Figure 11-2

Figure 11-1

(G1) x2
ø2.5 x10mm

Top Cabinet

Holder PWB
(G1) x2

ø2.5 x10mm

Holder PWB

(F1) x4
ø2.5 x10mm

Hook
(F2) x4

STEP

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

REMOVAL

PROCEDURE

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

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

FIGURE

Figure 11-3

– 11 –

XL-3000V

(A1) x1
ø2.5 x10mm

(A1) x2
ø2.5 x12mm

(A1) x1
ø2.5 x14mm

(A2) x1

(A3) x1

(A4) x2
ø2 x5mm

Switch PWB

CD Lid Motor

Gear Box Lid

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:

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

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

AM

GND

FM

75

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

20

TUNER PWB-A2

1

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-3000V

• 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/PRESET UP 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

FM

Adjusting

Parts

Check Point Instrument

Preset No.

Instrument

Connection

Terminal

Connection

AM

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

Figure 13-1 ADJUSTMENT POINTS

– 13 –

XL-3000V

Color bar signal
waveform

100 100

88.5
75

70

75

41.5

33.5

5

0

-13.5

-25 -25

100 IRE

(0.714V)

(1V)

(0.286V)

140 IRE

Horizontal
sync signal

40 IRE

40 IRE

Color Burst

20

-20

-40

Blue

Red

Green

Magenta

Cyan

Yellow

Gray

(59.94Hz/NTSC)

IH

CD SECTION

Since this CD system incorporates the following automatic
adjustment function, when the pickup is replaced, it is not
necessary to readjust it.

VIDEO CD SECTION

A-BEX
TEST VIDEO CD

••

• Measurement of oscillation frequency

••

Disc Adjusting

CD Stop TC100V 27.00000 MHz1 of R163V and

••

• Checking of video output signal

••

Point

Model No.

Instrument

Connection

± 160 Hz

Checking of color bar

Disc

Track 2 Video output terminal Chroma Peak Level

Adjusting Point

TVD-581
TVD-581A

Specified Value

2

of C183V

Instrument

Connection

100 ± 15 IRE

SET

Video Output Terminal

Video Input Terminal

TV

Figure 14-3 Checking of video output signal

VIDEO PWB-D

1 PCLK2X

IC14V

X1V

R163V

C183V

TC100V

IC15V

2 GND

Figure 14-1 ADJUSTMENT POINTS

SET

VIideo Output Terminal

Yellow

Gray

Figure 14-4

Green

Cyan

Blue

Red

Magenta

75 ohms

Figure 14-2 Measurement of oscillation frequency

GND

Vectorscope
Waveform monitor

or oscilloscope

TV monitor

Figure 14-5

– 14 –

Checking of vector scope waveform

YL

MG

CY

G

75%

B

R-Y

-Q

-I

[NTSC] [PAL]

I

Q

YL

R

R

75%

B-Y

MG

B

CY

cy

G

mg

U

V

g

yl

b

Checking SettingDisc Checking

Item

Track 2 VIDEO OUT Set the phase of Phase check

color burst signal ± 10°
(B) to 180°-360°
line.

( Check that the setting is within the illustrated range.)

XL-3000V

Checking the black-and-white level

Checking Checking ItemDisc

Track 16 VIDEO OUT Output level

100% Luminance

100IRE

100 ± 10 IRE

40IRE

40IRE

Horizontal Interval
reference signal

100% WHITE LEVEL

Figure 15-2

Figure 15-1

– 15 –

XL-3000V

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. Tuner Test Mode (TEST 2)

.......................REW/PRESET DOWN + CD PLAY

2. Electronic Volume Test Mode (TEST 3)

.......................REW/PRESET DOWN + FF/PRESET UP

3. Timer Test Mode (TEST 4)

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

4. LCD Test Mode (TEST 5)

.......................FUNCTION + FF/PRESET UP

5. 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. 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.

• 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 90.20 MHz
5 FM106.00 MHz

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

CH

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

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

BAND

BAND

BAND

>>

->

FM

AMCH

FM

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.

– 16 –

XL-3000V

3. 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)

<->

<->

5. 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.

4. 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.

– 17 –

XL-3000V

6. 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.

7. 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.)

– 18 –

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-3000V

• 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 MEMORY/SET ON—OFF
SW722 BASS/TREBLE 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
2SC1740 SR
2SD1858 R2
KRA102 M
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1268 GR
KTC3199 GR
KTC3200 GR

FRONT

VIEW

BCE

2SD2012 Y

Figure 19 TYPES OF TRANSISTOR AND LED

DB5306X

FRONT
VIEW

1 2 3

SVC348S
KDV147C

– 19 –

XL-3000V

N

B

U

N

3

Q804
Q805

Q804
Q805

FROM

DISPLAY PWB

CNP702

+B4

CLID_SW

CLID_UP

CLID_PRO

CLID_DW

FAN_DEC

9

1

5

23

AMP_DEC

Q802

3

45678910

CD_STB

DIMMER

6

2

LIGHT

8

7

1

FAN

IC805

CD LID

TA7291S

MOTOR DRIVER

Q901 Q902

Q908 Q907

Q908

Q908

LED PWB

M_GND

+B4

M_GND

+B8

SWITCH PWB

SW802
CD LID

OPEN/CLOSE

M801

CD LID

OPEN/CLOSE

MOTOR

M

+B4

+B7

GND

OPO

VO2-

VO2+

PO1-

PO1+

VO3-

VO3+

VIN3

16 17 18 19 21 22 23 24 25 26 27 28

VIN2

5V

8

9910111213

6

5

7

TRB

GND

VCC

MUTE

VCC

+B5

REG O

BIAS

VG4

VG1

VIN4

VG2

VG3

CD_6R2V

Q861

1234

VIN1

VO1-

VO1+

VO4+

VO4-

GND

IC804
MM1469XH
FOCUS/TRACKING/
SPIN/SLED DRIVER

+B5

M_GND

+

NM802
SPINDLE

M

MOTOR

–

SP+
SP–
SP+

+

M

–

NSW801
PICKUP IN

NM801
SLED
MOTOR

SL–
PU-IN
GND

CD MOTOR PWB

FO
TR

FROM

VIDEO PWB

1 2 3 4 5 6

L–CH

A_GND

A_GND

R–CH

VDAC

SO401
VIDEO

OUT

VIDEO/AUX

INPUT

M802
FAN

MOTOR

M

CNP807

DIGITAL

+5V

+B2

J801

OUT

7 8

D_GND

+8V

1
2

1
2

1
2
3

11 10 9

CNP307

SD

+B1

R-CH

L-CH

CNP810

TERMI

PW

T

DO

FM ST

CL

1
2
3
4
5
6

TO

7
8

VIDEO PWB

9
10
11
12

CNS801

/RST
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
PU_IN

LRCK
BCK
DATA

X801

16.93MHz

+B7

5355

FMO

DMO

100

/RST

90

BUS0
BUS1

91

BUS2

92

BUS3

93

BUCK

96

/CCE

97

5

LRCK
BCK

7

AOUT

8

SERVO/SIGNAL CONTROL

XI

78

XO

79

14

VDD

23

VDD

39

AVDD

62

VDD

76

VDD

80

XVDD

94

VDD

AVSS

IC802

TC9462F

VSS

VSS

VSS

TESIOO

TESIN

TESI01

6152436 63 71 72 73 74 77 95 81 86

VSS

M_GND

+B2

DOUT

57

SEL

56

2VREF

TEBC

52

RFGC

51
50

VREF

TRO

49
48

FOO

47

TEZI

46

TEI

TSIN

45
44

SBAD

43

FEI

RFRP

42

RFCT

40

RFI

38
34

VCOREV

33

PVREV

LPFO

32

LPFN

31
30

TMAX

28

PDO

P2VREF

25

XVSS

VSS

PXI

A_GND D_GND

DVSR

DVSL

13

SBAD

14

FEO

15

FEN

16

VRO

17

RFRP

18

RFIS

19

RFGO

20

RFGC

21

AGCI

22

RFO

23

GND

24

RFN

D_GND

TA2109F

SERVO PRE AMP.

IC801

TEO
TEN

2VRO

TEB

SEL

LDO

MDI
TN1

TPI
FPI
FNI

VCC

12
11
10

9
8
7
6
5
4
3
2
1

+B7

E
F
B
A

C

+B7

SWITCHING

Q801

+B7

PICKUP U

FOCUS COIL

TRACKING COIL

LD

MON

1/2V

5V

Figure 20 BLOCK DIAGRAM (1/6)

– 20 –

XL-3000V

TO

TUNER PWB

1 10 9 8 7 6 5 4 3 2 1

DI

CL

CE

DO

A_12V

FM ST

D_GND

+B6

TUN L

TUN R

+B7

MINAL

WB

IC682

KIA7805API

3

VOLTAGE

REGULATOR

2

UNIT

IL

IL

VOLTAGE

REGULATOR

FROM

DISPLAY PWB

1 2 3 4 5 6

SD

DO

A_GND

STEREO

+B1

1

Q610

Q607

CD_6R2V

+B5

CD +B

+B3

+B4

1
2

+B8

CNP652

+B6

5V

A_12V

MAIN PWB

FROM

DISPLAY PWB

7 8 9 10

DI

CL

CE

CD +B

A_24V

VOLTAGE

REGULATOR

Q904

M_12V

Q903

REGULATOR

P_STB

P_MUTE

+B3

D651~D654

D657~D660

VOLTAGE

A_24V

A_GND

Q606

Q605

Q603
Q604

D_GND

MUTE

Q601
Q602

13 12 11

5V

CNP703

+B8

–B

D_GND

Q608

Q609

F651

T3.15A L 250V

F652

T3.15A L 250V

F653

T1.6A L 250V

VOLTAGE

SURROUND
ON/OFF

SURROUND

AUX R
TUN R

CD R

14

15

16

17
CD L
TUN L

IC401

AUX L

LC75342M

FUNCTION/VOLUME

EQUALIZER

IN2

+VCC

IN1

L-CH

CNP801

1
2
3
4
5

REGULATOR

PRE

15 13 12 11 10 9 8 7 6 4 1

R-CH

+B

1
2
3
4
5

4

USWD_5R6V

3
2

D_GND

1

FROM

DISPLAY PWB

CNP707

F654

T.F 2A,250V

POWER PWB-B

Q203

11

13 12

19

20

18

STK40202

POWER AMP.

+VCC

–B

Q102

Q101
Q104

IC681

KIA7805API
VOLTAGE

REGULATOR

3

D688

P_CONT

10

9

21

22

IC601

–VCC

1

2

1N4004

AC 110/127/220/

230~240V, 50/60Hz

R-CH IN

R-CH OUT

76

5

Q201

4

3

L-CH IN

R-CH OUT

8

24

23

L-CH OUT

Q103

TF

TRANSFORMER

D681~D684

7

4 3 2 1

6

5

VSS

NC

26

25

27 28

–VCC

PRE

T651
POWER
(MAIN)

Q681

–VE2

+VE2

–VE1

+VE1

R-CH

L-CH

VOLTAGE

REGULATOR

T681

POWER

TRANSFORMER

(SUB)

AC POWER SUPPLY CORD

+B6
A_12V

8

IC201

1

3 5 5 7 7 9 9

1

3

RLY601

SO655
AC INPUT

SOCKET

KIA4558P

SURROUND CONTROL

110V

127V

SW651

VOLTAGE
SELECTOR

12

L-CH OUT

CE

DI

LOGIC

VDD

29

30

CL

A_12V

+B6

GND

CNP651

Q683

AC 110/127/220/

230~240V, 50/60Hz

SO601

SPEAKER TERMINAL

+

L-CH

R-CH

+

J601
HEADPHONES

3
2
1
4
5
9
10

220V

230~240V

Figure 21 BLOCK DIAGRAM (2/6)

– 21 –

XL-3000V

FM DET

8

MUTE

6

3

AM

GND

FM

75ohms

SO301
ANTENNA
TERMINAL

BAD PASS
FILTER

BF301

2

1

3

AM
Tracking fL

+5V

1

L302

FM ANT.

FM RF

T302

T306

AM Band
Coverage fL

IC301

TA7358AP

FM FRONT END

2

4

56 7 9

3

T304

FM +B

VD303

FM +B

FM IF

L303

FM OSC.

FM Band
Coverage fL

VD301

8

FM +B

VT

VD302

FM IF

CF303

Q302

Q306

+5V

TP301

FM MUTE

LEVEL

VR351

FM IF

CF302

X352

4.5MHz

23 22 21 20 19 1824

OUT

AM OSC

AM MIX

IN

FM IF

IC302

LC72131

AM OSC

OUT

IN

IN

AM RF

FM AFC

REG

AM IF

AM IF

CF352

T351

+5V

22 21 20 19 18 17 1

VSS

AOUT

X OUT

X IN

VSM

AM IF

IN

CEDICL

CUT

AM LOW

GND

AIN

PLL(TUNER)

OUT

FM/AM

SD

DO

X

45

STEREO
7654321

+5V

PD

VDD

FM

765431

CNS707CNS652

1

2

TO

3

4

POWER PWB

1

TO

2

MAIN PWB

DISPLAY PWB

CNW707

D_GND

1

P_CONT

2

USWD_5R6V

3

LAMP PWB

LMP701

GND

SW711~713
SW718
SW721,722
SW725~727

SW709
SW710

RESET

Q701

Q702
Q703

X701

8MHz

X702

32.768kHz

RX701

REMOTE
SENSOR

VLC3

5
6

VLC2
VLC1

7
8

VDD
OSC2

9

OSC1

10
11

VSS
XI

12

XO

13
14

MMOD

15

VREF–
VREF+

24
16

CLID_SW

17

KEY1

18

KEY2

P–CONT

47

Q707

SWITCHING

LCD701

LCD DISPLAY

38541

1

4

COM3

COM0

SYSTEM MICROCOMPUTER/

RESET

Q708

SWITCHING

Q706

FL DRIVER

SYS_STOP

POWER

REMOCON

3837

39 46 49 5032

Q709

100

67

SEG0

IC701

IX0038SJ

DI

A_24V

SEG33

CLDOCE

34272625

5V

SURR

P–STB

P–MUTE

454443

CD+B

CLID_PRO

AMP_DEC

MOT_DEC

CLID_OUT

STEREO

SD

CLID_DW

CLID_UP

FAN

CD_STB

LIGHT

DIMMER

VD_DI

VD_DO

ACK

BUSY

STB

B-LIGHT

Figure 22 BLOCK DIAGRAM (3/6)

– 22 –