Sharp Dx-sx1h User manual

DX-SX1H

– 1 –

• In the interests of user-safety the set should be restored to its

original condition and only parts identical to those specified be

used.

SERVICE MANUAL

SHARP CORPORATION

No. S6053DXSX1H//

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

CONTENTS Page

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

IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 3

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

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

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

DISASSEMBLY.................................................................................................................................................................. 6

REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 8

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

BLOCK DIAGRAM ........................................................................................................................................................... 12

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 18

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 41

TYPES OF TRANSISTOR AND DIODE .......................................................................................................................... 41

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

WIRING OF PRIMARILY SUPPLY LEADS (FOR U.K. ONLY)........................................................................................ 66

PARTS GUIDE/EXPLODED VIEW/PACKING METHOD (FOR U. K. ONLY)

DX-SX1H

MODEL

SACD PLAYER

DX-SX1H

– 2 –

SAFETY PRECAUTION FOR

SERVICE MANUAL

Precaution to be taken when replacing and servicing the

Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output

forthismodelisspecifiedtobelowerthanClassIRequirements.

However, 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

outerthanthelead-inposition,theLaserwilllightforseveral

seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit and

replacementservicepartshavealreadybeenadjustedprior

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 -Useofcontrolsoradjustments,orperformance

of procedures other than those specified herein may result

in hazardous radiation exposure.

(For U.K.)

(Except for U.K.)

LASER KLASSE 1

LUOKAN 1 LASERLAITE

KLASS 1 LASERAPPARAT

VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA

KUIN TÄSSÄ KÄYTTÖOHJEESSA MAI NI TULLA

TAVALLA SAATTAA ALTI STAA KÄYTTÄJÄN

TURVALLI SUUSLUOKAN 1 YLITTÄVÄLLE

NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.

VARNING - OM APPARATEN ANVÄNDS PÅ AN-

NAT SÄTT ÄN I DENNA BRUKSANVI SNI NG

SPECI FI CERAS. KAN ANVÄNDAREN UT-

SÄTTAS FÖR OSYNLIG LASERSTRÅLNING,

SOM ÖVERSKRIDER GRÄNSEN FÖR LASER-

KLASS 1.

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO

BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA

EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

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.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE

INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

Laser Diode Properties

Material: GaAIAs

Wavelength: 780 nm/650 nm

Emission Duration: continuous

Laser Output: max. 0.7 mW

DX-SX1H

– 3 –

Specifications for this model are subject to change without

prior notice.

SPECIFICATIONS

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

TO THE OPERATION MANUAL.

IMPORTANT SERVICE NOTES (FOR U.K. ONLY)

Beforereturningtheunit to thecustomerafter completion ofa

repairoradjustmentitisnecessaryforthefollowingwithstand

voltage test to be applied to ensure the unit is safe for the

customer to use.

Setting of Withstanding Voltage Tester and set.

Set name set value

Withstanding Voltage Tester

Test voltage 2,120 VPEAK

1,500 VRMS

Set time 60 secs

Set current (Cutoff current) 4 mA

Unit

Judgment

OK: The “GOOD” lamp lights.

NG: The “NG” lamp lights and the buzzer sounds.

SHORT-CIRCUIT

AC POWER

SUPPLY CORD

CONNECT THE PROBE

TO GND OF CHASSIS

SCREW

PROBE

UNIT

WITHSTANDING

VOLTAGE TESTER

OUT

Channel: Stereo 2 channels

Frequency range: 2 Hz - 100 kHz

(Super Audio CD)

Frequency 2 Hz - 50 kHz

response: (Super Audio CD)

2 Hz - 20 kHz

(CD)

Total harmonic

distortion: 0.0012 % (1 kHz, 2 V)

Dynamic range: 105 dB or more

(Super Audio CD)

Wow and flutter: Unmeasurable (less than

±0.001 % W. peak)

Output terminals: 1-bit digital output terminal

x 1

RCA coaxial digital output

x 1

Square type optical digital

output x 1

RCA analog output

(FIXED) x 1

RCA analog output (VARI-

ABLE) x 1

Headphone jack [3.5 mm

(1/8”)] x 1

Other terminals: AC input x 1

Power source:

Power

consumption:

Dimensions: Width; 300 mm (11 - 13/16”)

Height; 66 mm (2 - 5/8”)

Depth; 382 mm (15 - 1/16”)

Weight: Approx. 5.8 kg (12.79 lbs.)

230 V, 50 Hz

16 W

DX-SX1H

– 4 –

NAMES OF PARTS

1 Power Button

Turns the player on or off.

2 Headphone Jack

Use headphones of 16 - 50 ohms (32 ohms

recommended) impedance with a 3.5 mm (1/

8”) diameter stereo mini plug.

Volume can be adjusted using the volume

buttons on the remote control.

3 Remote Control Sensor

4 Disc Tray

5 SACD/CD Selector Button

Used to set the mode to “SACD” or “CD” on

a hybrid disc.

789

1256

Main unit

Indicators

789

12564

10 12

7 Remaining Time Indicator

8 Program Indicator

9 Random Play Indicator

10 Repeat Indicator

11 Single Track Repeat Indicator

12 All Tracks Repeat Indicator

6 Track Up/Down Buttons

Locates the beginning of tracks. Press and

hold down during playback for fast forward

or fast reverse.

7 Open/Close Button

Opens or closes the disc tray.

8 Stop Button

Stops the disc.

9 Pause Button

Stops the disc temporarily.

10 Play Button

Plays the disc.

1 SACD Indicator

2 Pause Indicator

3 Play Indicator

4 SACD/CD Indicators

5 Track Number Indicator

6 Total Time Indicator

1 Direct Selection Buttons

Used to select tracks directly.

2 Program Button

Used to change the order of tracks.

3 Clear Button

Clears the programmed tracks.

4 SACD/CD Selector Button

Used to set the mode to “SACD” or “CD” on

a hybrid disc.

5 Stop Button

Stops the disc.

6 Fast Forward/Fast Reverse But-

tons

Pressand hold down during playback for fast

forward or fast reverse.

7 Open/Close Button

Opens or closes the disc tray.

Remote control

310

8 Time Display Button

Displays playing time and remaining time

of each track, and total remaining time of

the disc.

9 Playback Mode Selector Button

Used to set the playback mode to “normal

playback”, “all tracks repeat play”, “single

track repeat play”, or “random play”.

10 Play Button

Plays the disc.

11 Pause Button

Stops the disc temporarily.

12 Track Up/Down Buttons

Used to locate the beginning of tracks.

13 Volume Buttons

Control the headphone output and the line

output(VARIABLE) levels at the same time.

DX-SX1H

– 5 –

OPERATION MANUAL

NAMES AND CONNECTIONS

Connecting to SHARP’s 1 bit amplifier

Connect the amplifier to both the 1-bit signal output and the line output terminals (FIXED).

SM-SX1

SM-SX1H

SM-SX1W

This player

Connect plugs securely to each terminal to prevent noise generation.

Turn off the power of each piece of equipment before making any connection.

Before installation

Protectors are applied to all four feet.

Remove them before installation.

Protector

It is recommended to attach the three sup-

plied pads as shown below because this

player is supported at three points.

The pads prevent slippage or damaging the

rack.

Pad

Middle foot

at the back

1-bit signal output terminal

Connect to SHARP’s 1 bit amplifier using the

supplied 1-bit signal cable.

1-bit signals of Super Audio CDs can be

sent using SHARP’s 1 bit amplifier only.

Line output terminals

Connect to an amplifier using RCA cords.

[VARIABLE]

The line output and the headphone output

levels can be changed at the same time us-

ing the volume buttons on the remote con-

trol.

[FIXED]

The output level is unchangeable.

CUSTOM/STANDARD selector

(analog output only)

This switch is ordinarily set to “STAN-

DARD”.

Set to “CUSTOM” when you connect the

player to SHARP’s 1 bit amplifier.

Use the point of a ball point

pen (or the like) to switch.

Conventionalamplifiersand speakers arede-

signed to meet the audible range. If the vol-

ume or tone level of your amplifier is turned

up too high during playback, noise may be

generated or the protection circuit may be

activated.

Set this switch, according to the amplifier to

be connected, to prevent the above prob-

lems.

Setting to “CUSTOM” on an ordinary am-

plifier can cause noise or damage your

amplifier and speakers.

This switch does not affect the signals

sent from the 1-bit signal output terminal

and the digital output terminals.

Digital output terminals

Only signals of conventional CDs are sent

from the digital output terminals.

1-bit signals of Super Audio CDs are not

sent.

[Digital (OPTICAL) output terminal]

Connect equipment using a square type op-

tical digital cable.

[Digital (COAXIAL) output terminal]

Connectequipmentusing RCA coaxialcable.

REMOTE CONTROL

Usable range

Approx.

15°

Remote control sensor

Approx. 20 cm - 6 m (8'' - 20')

Approx.

15°

Use the remote control within the range

shown to the left.

Do not expose the remote control sensor to

direct sunlight, as this may cause improper

operation.

Do not attach anything, such as a sticker, to

the remote control sensor.

The remote control may not work.

Replacing batteries for the remote control

The battery life is approximately 1 year when

used normally.

Replace the batteries if the operating distance

is reduced.

DX-SX1H

– 6 –

Figure 6-4

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 theyneed to

beremovedwhendisassemblingtheunit.Afterservicing

theunit, be sure to rearrange the leads where theywere

before disassembling.

4. Take sufficient care on static electricity of integrated

circuits and other circuits when servicing.

Figure 6-2

Figure 6-1

Figure 6-3

1 Top Panel 1. Screw .................. (A1) x5 6-1

2 Main PWB 1. Screw .................. (B1) x10 6-1

2. Socket ................. (B2) x6

3 Power PWB 1. Screw .................. (C1) x6 6-1

2. Socket ................. (C2) x5

SACD Mechanism/

1. Screw .................. (D1) x7 6-2, 6-3

Front Panel 2. Screw .................. (D2) x8

3. Remove the tray cover.

4. Socket ................. (D3) x1

5 Power Switch/ 1. Screw ..................(E1) x5 6-4

Headphones PWB

2. Socket ................. (E2) x2

6 Display PWB 1. Screw .................. (F1) x7 7-1

7 CD Servo/ 1. Screw .................. (G1) x7 7-2

Pickup Sensor/ 2. Socket ................. (G2) x3

Mode Switch PWB

3. Flat Cable ........... (G3) x2

Tray Sensor PWB

1. Screw .................. (H1) x9 7-3

REMOVAL PROCEDURE

STEP FIGURE

(B1)x3

ø3x8mm

(B1)x2

ø3x8mm

(B1)x2

ø3x8mm

(B1)x3

ø3x8mm (C1)x2

ø3x8mm

Top Panel

(A1)x5

ø4x7mm

(C1)x2

(B2)x2

(C1)x4

ø3x8mm

(C2)x1

Power

PWB

(C2)x1

Main PWB

(D1)x2

ø2.6x8mm

(D1)x3

ø3x8mm Bottom

Panel

(D1)x1

ø2.6x6mm

(D1)x1

ø2.6x6mm

(D2)x4

ø3x8mm

(D2)x2

ø3x8mm

(D2)x2

ø3x8mm

Front

Panel

(D3)x1

SACD

Mechanism

(E1)x3

ø3x8mm

(E1)x2

ø4x8mm (E2)x2

Power Switch

PWB

Headphones

PWB

DX-SX1H

– 7 –

Figure 7-2

Figure 7-1

Figure 7-3

(F1)x2

ø2x5mm

(F1)x5

ø2.6x8mm

Display PWB

(G1)x1

ø1.7x3mm

(G1)x4

ø3x6mm

(G1)x2

ø2x5mm

(G3)x1

(G2)x1

(G2)x2

CD Servo PWB

Pickup

Sensor PWB

Mode Switch

PWB

(H1)x4

ø2.6x6mm

(H1)x1

ø2.6x6mm

(H1)x2

ø2x5mm

(H1)x2

ø2.6x6mm

Top Plate

Tray Ass'y

Tray Sensor

PWB

DX-SX1H

– 8 –

REMOVING AND REINSTALLING THE MAIN PARTS

SACD MECHANISM SECTION

Perform steps 1, 4, 7 and 8 of the disassembly method to

remove the SACD mechanism.

How to remove the loading motor (See Fig. 8-1.)

1. Remove the lift lever.

2.Removethescrews(A1)x4pcs.,toremovethegearcover.

3. Remove the screws (A2) x 2 pcs., to remove the loading

motor.

Figure 8-1

(A2) x2

ø1.7x2mm

(A1) x4

ø2x5mm

Gear Cover

Motor

Lift Cover

(Adjusting the SACD mechanism completed products)

It is necessary to position the spindle motor, the sub-shaft

(mechanism),andthepickuptoplayanonstandardizedSACD

disc. If the pickup or motor is replaced at the service division,

theseadjustmentscannotbeperformedbecauseofthefacility

and measuring equipment matters.

The SACD mechanism completed products are adjusted for

the above reasons.

After installing:

After installing the SACD mechanism completed product,

remove the two solders shown below.

Figure 8-2

Remove these two solders after installing

the SACD mechanism completed product.

• The two solders are used to eliminate static electricity before installing the SACD mechanism completed product.

DX-SX1H

– 9 –

Adjusting the tension of the timing belt

Remove the gear unit and connect the ammeter to the DC

power as shown in Fig. 9-1.

DC Power

3.5V

Motor Gear

Unit

Connector Ampere

Meter

Figure 9-1

Ifmeasurementoftheloadingmotorcurrentispossible,move

the motor in the direction of the arrow so as to obtain 40 - 50

mA, and fix the motor with screws (A1) x 2 pcs.

(A1) x1

ø1.7x2mm

(A1) x1

ø1.7x2mm

Timing Belt Shaft

Motor

Pully Ass'y

Drive

Pulley

Figure 9-2

DX-SX1H

– 10 –

ADJUSTMENT

TEST MODE

Description of the test mode

1. How to enter the test mode

In the no disc mode and the tray eject mode, press the SACD/CD button and the track down button more than two seconds.

Display: F 0 _ _ 0 0 0 0 0

2. Entering a desired test mode

Version check

Press the SACD button to enter this mode.

Display: 1 0 _ 9 0 9 2 8

Year/Month/Day Program date

Mechanism test

Press the STOP button to enter this mode.

(In case of the no disc mode, eject the tray.)

Display: 2 0 _ 0 0 0 0 0

Dynamic test

Press the PAUSE button to enter this mode.

(In case of the no disc mode, eject the tray.)

Display: 3 0 _ 0 0 0 0 0

FIP test

Press the PLAY button to enter this mode

Display: All lamps lit up.

Press the PLAY button again to return to the initial test mode

Display: F 0 _ 0 0 0 0 0

3. Version check mode

Program date

Display: 1 0 _ 9 0 9 2 8

Year/Month/Day

Model number (Press the PLAY button in the step

Display: 1 0 _ 0 0 0 1 0

Model number

Version (Press the PLAY button in the step

Display: 1 0 _ A 0 0 0 1

Version number

Then press the PLAY button to return to the initial test mode.

Display: F 0 _ 0 0 0 0 0

4. Mechanism test

(In case of the no disc mode, eject the tray.)

Display: 2 0 _ 0 0 0 0 0

Tray mechanism aging mode (Press the OPEN/CLOSE button in the step

Display 2 1 _ 0 0 0 0 5

Number of times of aging

Sled motor aging mode (Press the PLAY button in the step

Display: 2 2 _ 0 0 0 0 5

Number of times of aging

5. Dynamic test

(In case of the no disc mode, eject the tray.)

Display: 3 0 _ 0 0 0 0 0

Tray load (Press the OPEN/CLOSE button in the step

Display: 3 0 _ 0 0 0 0 0

Laser test mode (Press the STOP button in the step

Display: 3 1 _ 0 0 0 0 0 (Check the slide feed.)

Step execution mode (Press the PAUSE button in the step

Display: 3 2 _ 0 0 0 0 0

Continuous playback mode (Press the PLAY button in the step

Display: 3 3 _ 0 0 0 0 0

DX-SX1H

– 11 –

6. Laser test mode

Enter the laser test mode from the dynamic test mode.

Display: 3 1 _ 0 0 0 0 0

CD laser lit up (Press the STOP button in the step

Display: 3 1 1 0 0 0 0 0

SACD laser lit up (Press the PAUSE button in the step

Display: 3 1 2 0 0 0 0 0

Laser test mode completed (Press the PLAY button in the step

Display: F 0 _ 0 0 0 0 0

7. Step test mode

Enter the step test mode from the dynamic test mode.

Display: 3 2 _ 0 0 0 0 0

Slide feed (Press the SKIP+ or - button to feed the slide by a given quantity.)

Display: 3 2 _ 1 0 0 0 0