Technics SA-HT340-GC Service Manual

ORDER NO.MD0605178C3

DVD Home Theater Sound System

SA-HT340GC SA-HT340GCS SA-HT340GS

Colour

(S).......................Silver Type

Specifications

lGeneral

Power Source:

Power consumption: 90 W

Dimensions (W×H×D):

Mass:

lAmplifier section

RMS Output Power: Dolby Digital Mode

lTotal RMS Dolby Digital

mode Power:

At 1kHz and total harmonic of 10%

lFront: 55 W/ Channel (5Ω)

lCenter: 55 W/ Channel (5Ω)

lSurround: 55 W/ Channel (5Ω)

At 100Hz and total harmonic of 10%

lActive subwoofers: 55 W/ Channel (5Ω)

PMPO Output Power: 2800W

DIN Output Power: Dolby Digital Mode:

lTotal DIN Dolby Digital mode Power:

At 1kHz and total harmonic of 1%

lFront: 25 W/ Channel (5Ω)

lCenter: 25 W/ Channel (5Ω)

lSurround: 25 W/ Channel (5Ω)

At 100Hz and total harmonic of 1%

C 110V-240V, 50/ 60Hz

430×60×342 mm

3kg

330 W

150 W

lSubwoofer: 25 W/ Channel (5Ω)

lFM tuner section (FM)

Preset Memory: FM 15 stations

AM/MW 15 stations

Frequency Range:

Sensitivity: 1.8µV (IHF)

S/N 26dB 1.4µV

Antenna Terminals:

lAM tuner section (AM/MW)

Frequency Range:

AM Sensitivity S/N 20dB at 999kHz:

lMic jack:

Sensitivity: 0.7mV (1.2kΩ)

Terminal: Mono 6.3mm jack (1 system)

lDisc section

Discs played (8 cm or 12 cm):

(1) DVD [DVD-Video, DivX(*6,7)]

(2) DVD-RAM [DVD-VR, MP3(*2,7), JPEG(*4,7), MPEG4(*5,7),

DivX(*6,7)]

(3) DVD-R [DVD-Video, DVD-VR, MP3(*2,7), JPEG(*4,7),

MPEG4(*5,7), DivX(*6,7)]

(4) DVD-R DL [DVD-Video, DVD-VR]

87.5-108.00MHz

(50kHz step)

75Ω (unbalanced)

522-1629kHz (9kHz step)

520-1630kHz (10kHz step)

560µV/m

SA-HT340GC / SA-HT340G CS / SA-HT340GS

(5) DVD-RW [DVD-Video, DVD-VR, MP3(*2,7), JPEG(*4,7),

MPEG4(*5,7), DivX(*6,7)]

(6) +R/RW [Video]

(7) +R DL [Video]

(8) CD, CD-R/RW [CD-DA, Video CD, SVCD(*1), MP3(*2,7),

WMA(*3,7), JPEG(*4,7), MPEG4(*5,7), DivX (*6,7), HighMAT Level 2 (Audio and Image)]

*1 Conforming to IEC62107

*2 MPEG-1 Layer 3, MPEG-2 Layer 3

*3 Windows Media Audio Ver.9.0 L3

lNot compatible with Multiple Bit Rate (MBR)

*4 Exif Ver 2.1 JPEG Baseline files

lPicture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:0:0, 4:2:0, 4:2:2, 4:4:4). Extremely long and narrow pictures may not be displayed.

*5 MPEG4 data recorded with Panasonic SD multi cameras or

DVD video recorders.

lConforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/G.726 audio system.

*6 Plays all versions of DivX® video (including DivX® 6) with

standard playback of DivX® media files. Certified to the DivX Home Theater Profile.

lGMC (Global Motion Compensation) is not supported.

*7 The total combined maximum number of recognizable audio,

picture and video contents and groups: 4000 audio, picture and video contents and 400 groups.

Pick up:

Wavelength:

lCD: 785nm

lDVD: 662nm

Laser power:

lCD: CLASS 1M

lDVD: CLASS 1

Audio output (DISC):

Number of channels: 5.1 ch (FL, FR, C, SL, SR,

SW)

Audio performance:

Frequency response:

DVD (linear audio): 4 Hz-22 kHz (48 kHz sampling)

4 Hz-44 kHz (96 kHz sampling)

CD-Audio:

4 Hz-20 kHz

S/N ratio:

CD-Audio: 105 dB

Dynamic range:

DVD (linear audio): 95 dB

CD-Audio:

95 dB

Total harmonic distortion:

CD-Audio:

0.005 %

lVideo section

ideo system:

Signal system: PAL 625/50, PAL 525/60,

NTSC

Composite video output:

Output level: 1 Vp-p (75 Ω)

Terminal: Pin jack (1 system)

S-video output:

output level: 1 Vp-p (75 Ω)

C output level: PAL; 0.3Vp-p (75Ω )

NTSC; 0.286 Vp-p (75 Ω)

Terminal S terminal (1 system)

Component video output: [NTSC: 480p/480i, PAL:576p/576i]

output level: 1.7 Vp-p (75 Ω )

PBoutput level: 0.7 Vp-p (75 Ω )

PRoutput level: 0.7 Vp-p (75 Ω )

Terminal: Pin jack (Y: green, PB: blue,

: red) (1 system)

Power consumption in standby mode:

approx 1W

Note:

1. Specifications are subject to change without notice.

Mass and dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum analyzer.

Solder:

This model uses lead free solder (PbF).

Mechanism:

This model uses DL2SU (Single tray) mechanism.

Power supply:

This model uses Switching Mode Power Supply (SMPS) Module for power-up unit.

Refer to the original service manual for *1, *2, *3, *4.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

CONTENTS

Page Page

1 Safety Precautions 6

1.1. GENERAL GUIDELINES

1.2. Before Repair and Adjustment (Using SMPS)

1.3. Protection Circuitry

1.4. Caution for AC Cord (For GS only)

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

3 Precaution of Laser Diode

4 About Lead Free Solder (PbF)

4.1. Service caution based on legal restrictions

5 Handling Precautions for Traverse Unit

5.1. Cautions to Be Taken in Handling the Optical Pickup Unit

5.2. Grounding for electrostatic breakdown prevention

6 Accessories

7 Operation Procedures

7.1. Remote Control Keys Operation

7.2. Main Unit Keys Operation

7.3. Disc information

7.4. About DivX VOD Content

8 Self-Diagnosis and special mode setting

8.1. Service Mode Summary Table

8.2. Service Mode Table

8.3. DVD Self Diagnostic Function-Error Code

8.4. Sales Demonstration Lock Function

8.5. Service Precautions

9 Assembling and Disassembling

9.1. Disassembly Flow Chart

9.2. Main Components and P.C.B. Locations

9.3. Disassembly of Top Cabinet

9.4. Disassembly of the DVD Lid (When taking out disc

manually)

9.5. Disassembly of Front Panel Assembly

9.6. Disassembly of FL P.C.B., Mic P.C.B. & Volume P.C.B.

9.7. Disassembly of DVD Mechanism Unit

9.8. Disassembly of DVD Module P.C.B.

9.9. Disassembly of Rear panel

9.10. Disassembly of SMPS Module P.C.B.

9.11. Disassembly of Main P.C.B. & Tuner Extent P.C.B.

9.12. Disassembly of Digital Amp IC (IC5100/IC5200/IC5300)

10 Service Position

10.1. Servicing position of the DVD Module P.C.B.

10.2. Servicing position of the Main P.C.B.

10.3. Servicing position of the SMPS Module P.C.B.

11 Assembly and disassembly of Mechanism Unit

11.1. Disassembly Procedure

12 Measurements and Adjustments

12.1. Service Tools and Equipment

12.2. Important points in adjustment

12.3. Storing and handling of test discs

12.4. Optical adjustment

13 Abbreviati ons

14 Voltage and Waveform Chart

14.1. DVD Module P.C.B.

14.2. Main P.C.B.

14.3. FL P.C.B., Mic P.C.B. & Tray Loading P.C.B.

14.4. SMPS Module P.C.B.

14.5. Waveform Chart

15 Illustration of IC's, Transistors and Diodes

16 Wiring Connection Diagram

17 Block Diagram

18 Schematic Notes

19 Schematic Diagram

19.1. (A) DVD Module (DV3.2) Circuit

19.2. (B) Main, FL, Volume & Mic Circuit

19.3. (C) Tray Loading & Tuner Extent Circuit

20 Printed Circuit Board

20.1. (A) DVD Module P.C.B.

20.2. (B) Main P.C.B.

20.3. (C) FL, Volume, Mic, Tray Loading & Tuner Extent P.C.B.

21 Basic Troubleshooting Guide

21.1. Basic Troubleshooting Guide for Traverse Unit (DVD

Module P.C.B.)

21.2. Troubleshooting Guide for Power section (Power circuit)

22 Overall Block (HT340)

22.1. HT340 DVD Unit Block

22.2. HT340 Block (Analog Signal : DVD 5.1ch Play Back

Mode)

22.3. HT340 Block (Analog Signal : 2ch Analog Input Mode)

22.4. HT340 Power Supply Block

22.5. HT340 Power (Main) Block

23 Terminal Function of ICs

23.1. IC2018 (C2CBYY000194): System Control

Microprocessor IC

24 Exploded Views

24.1. Cabinet Parts Location

24.2. Packaging

25 Replacement Parts List

25.1. Component Parts List

SA-HT340GC / SA-HT340G CS / SA-HT340GS

1 Safety Precautions

1.1. GENERAL GUIDELINES

1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.

1.1.1. LEAKAGE CURRENT COLD CHECK

1. Unplug the AC cord and connec t a jumper between the two prongs on the plug.

2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1MΩ and 5.2MΩ . When the exposed metal does not have a return path to the chassis, the reading must be

Figure 1

1.1.2. LEAKAGE CURRENT HOT CHECK (See Figure 1.)

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.

2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitors, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.

4. Check each exposed metallic part, and measure the voltage at each point.

5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.

6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer.

1.2. Before Repair and Adjustment (Using SMPS)

This model uses Switching Mode Power Supply (SMPS) Module to provide the neccessary voltages for the unit.

DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.

After repairs are completed, restore power gradually using a variac, to avoid overcurrent.

Current consumption at AC 100/ 110V, 50/ 60 Hz in NO SIGNAL mode volume minimal should be ~ 650 mA.

Current consumption at AC 230V~240V, 50 Hz in NO SIGNAL mode volume minimal should be ~ 650 mA.

1.3. Protection Circuitry

The protection circuitry may have operated if either of the following conditions are noticed:

· No sound is heard when the power is turned on.

· Sound stops during a performance.

The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are

“shorted”, or if speake r systems with an impedance less than the indicated rated impedance of the amplifi er are used.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

If this occurs, follow the procedure outlines below:

1. Turn off the power.

2. Determine the cause of the problem and correct it.

3. Turn on the power once again after one minute.

Note:

When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

1.4. Caution for AC Cord (For GS only)

SA-HT340GC / SA-HT340G CS / SA-HT340GS

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electro static discharge (ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficie nt to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installe d.

Caution

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to damage an ES device).

3 Precaution of Laser Diode

CAUTION :

This product utilizers a class 1 laser. Invisible laser radiation is emitted from the optical pick up lens.

When the unit is turned on:

Wavelength : 658nm/780nm

Maximum output radiation power from pick up : 100µW/VDE

Laser radiation from pick up unit is safety level, but be sure the followings:

1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.

2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.

3. Do not look at the focus lens using optical instruments.

4. Recommend not to look at pick up lens for a long time.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

4 About Lead Free Solder (PbF)

4.1. Service caution based on legal restrictions

4.1.1. General description about Lead Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that of the normal solder.

Definition of PCB Lead Free Solder being used

The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder. (See right figure)

Service caution for repair work using Lead Free Solder (PbF)

· The lead free solder has to be used when repairing the equipment for which the lead free solder is used.

(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

· To put lead free solder, it should be well molten and mixed with the original lead free solder.

· Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

· Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt

the lead free solder.

· Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30

degrees C (662±86°F).

Recommended Lead Free Solder (Service Parts Route.)

· The following 3 types of lead free solder are available through the service parts route.

RFKZ03D01K-----------(0.3mm 100g Reel)

RFKZ06D01K-----------(0.6mm 100g Reel)

RFKZ10D01K-----------(1.0mm 100g Reel)

Note

* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

SA-HT340GC / SA-HT340G CS / SA-HT340GS

5 Handling Precautions for Traverse Unit

The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be taken avoid caution to electrostatic breakdown when servicing and handling the laser diode.

5.1. Cautions to Be Taken in Handling the Optical Pickup Unit

The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body. Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.

1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.

2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed should be short-circuited with a short pin or a clip.

3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.

4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible cable, cut off the antistatic FPC.

5.2. Grounding for electrostatic breakdown prevention

Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electricity in the working environment. Proceed servicing works under the working environment where grounding works is completed.

5.2.1. Worktable grounding

1. Put a conduc tive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.

5.2.2. Human body grounding

1. Use the anti-static wrist strap to discharge the static electricity form your body.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

6 Accessories

SA-HT340GC / SA-HT340G CS / SA-HT340GS

Remote control

AM loop antenna

FM indoor antenna

AC cord

(For GS only)

AC cord

(For GCS/GC)

Video cable

Speaker label

SA-HT340GC / SA-HT340G CS / SA-HT340GS

7 Operation Procedures

7.1. Remote Control Keys Operation

< >

7.2. Main Unit Keys Operation

Disc playback

SA-HT340GC / SA-HT340G CS / SA-HT340GS

OPENCLOSE

AC IN

MEMOR Y

SELECTOR

TUNING

VOLUME

playback

Disc playback

SA-HT340GC / SA-HT340G CS / SA-HT340GS

7.3. Disc information

7.3.1. DISC playability (Media)

7.3.2. File Extension Type Support (WMA/MP3/JPEG/MPEG4/DivX)

Tips for making data discs

When there a re more th an eight g roups , the eigh th group o nwards w ill be di splayed on one ver tic al line in t he menu

screen. There may be differences in the display order on the menu screen and computer sc reen. This unit cannot play les recorded using packet write.

DVD-RAM

Discs must conform to UDF 2.0.

DVD-R/RW

Discs must conform to UDF bridge (UDF 1.02/ISO9660).

This unit does not support multi-session. Only the default session is played.

CD-R/RW

Discs must conform to ISO9660 level 1 or 2 (except for extended formats). This un i t su p p o rts mul t i- s e s si o n b ut i f t he r e ar e ma ny se s s i on s i t t a ke s mo re t i me f o r pl ay t o st a rt. Keep th e n um b e r of

sessions to a minimum to avoid this.

Naming folders and files

SA-HT340GC / SA-HT340G CS / SA-HT340GS

Files are treated as contents and folders are treated as groups on this unit.

At the time of recording, pre x folder and le names. This should be with numbers that have

fi fi

Example:

root

an equal number of digits, and should be done in the order you want to play them (this may not work at times). Files must have the extension ( see below).

(Extension: “.WMA” or “.wma”)

Compatible compression rate: between 48 kbps and 320 kbps. You cannot play WMA les that are copy protected.

This unit does not support Multiple Bit Rate (MBR).

(Extension: “.MP3” or “.mp3”)

Compatible compression rate: between 32 kbps and 320 kbps. This unit does not support ID3 tags. Compatible sampling rates: – DVD-RAM, DVD-R/RW: 11.02, 12, 22.05, 24, 44.1 and 48 kHz – CD-R/RW: 8, 11.02, 12, 16, 22.05, 24, 32, 44.1 and 48 kHz

(Extension: “.JPG”, “.jpg”, “.JPEG” or “.jpeg”)

JPEG les taken on a digital camera that conform to DCF Standard (Design rule for Camera File system) Version 1.0 are

displayed. Files that have been altered, edited or saved with computer picture editing software may not be displayed. This unit cannot display moving pictures, MOTION JPEG and other such formats, and still pictures other than JPEG

(Example: TIFF), or play pictures with attached audio.

(Extension: “.ASF” or “.asf”)

You can play MPEG4 data [ conforming to S D VIDEO spec i c ations (ASF stand ard)/MPEG4 (S imple Pro le) video

system/G.726 audio system] recorded with Panasonic SD multi cameras or DVD video recorders with this unit. The recording date may differ from that of the actual date.

(Extension: “.DIVX”, “.divx”, “.AVI” or “.avi”)

You can play all vers ions of DivX

system] with standard playback of DivX® media les. Functions added with DivX Ultra are not supported.

video (including DivX®6) [Di vX video system/ MP3, Dolby Digit al or MPEG audio

fi GMC (Global Motion Compensation) is not supported. DivX les greater than 2 GB or have no index may not be played properly on this unit.

fi This unit supports all resolutions up to maximum of 720 x 480 (NTSC)/720 x 576 (PAL). You can select up to eight types of audio and subtitles on this unit.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

7.4. About DivX VOD Content

About DivX VOD content

DivX Video-on-Demand (VOD) content is encr ypted for copyright protection. In order to play DivX VOD content on this unit, you rst need to register the unit.

Follow th e online instru ctions ffior purchasing DivX VOD conten t to enter the un it’s regist ration c ode and reg ister the unit. For more information about DivX VOD, visit www.divx.com/vod.

Display the unit’s registration code

( Refer to OI page 23, “DivX Registration” in “Others” tab)

8 alphanumeric characters

We recommend that you make a note of this code for

future reference.

After playing DivX VOD content for the

another registration code is then displayed in “DivX Registration”. Do not use this registration code to purchase DivX VOD content. If you use this code to purchase DivX VOD content, and then play the content on this unit, you will no longer be able to play any content that you purchased using the previous code.

rst time,

If you purchase DivX VOD content using a

registration code different from this unit’s code, you will not be able to play this content. (“Authorization Error” is displayed.)

Regarding DivX content that can only be

played a set number of times

Some DivX VOD content can only be played a set number of times. When you play this content, the remaining number of plays is displayed. You cannot play this content when the number of remaining plays is zero. (“Rented Movie Expired” or “Rental Expired” is displayed.)

When playing this content The number of remaining plays is reduced by one if – you press [ ] or press and hold [–SETUP]. – you press [ , STOP]. (Press [ , PAUSE] to pause

play.)

– you press [, ] (skip) or [, ] (slow/search)

etc. and arrive at another content or the start of the content being played.

Resume ( OI page 15, Stop) and Marker ( OI page 20,

Play Menu) functions do not work.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

8 Self-Diagnosis and special mode setting

8.1. Service Mode Summary Table

The service modes can be activated by pressing various button combination on the player and remote control unit.

Below is the summary of major checking:

Player buttons Remote control unit buttons Application Note

STOP 0 Error code display (Refer to the section,

5 Jitter checking (Refer to the section

6 Region display and mode (Refer to the section 7 Micro-processor firmware version check 8 DVD module firmware version check.

Initialization of the player (factory setting is restored.) Used after replacement of micro-computer, FLASH ROM IC, EEPROM and HDMI module.

ENTER DVD module reset (During initialisation)

FUNCTIONS DVD laser drive current check (Refer to the item “8.2.4.

3 CD laser drive current check

PAUSE Writing of laser drive current value after replacement of optical

pickup (Do use this function only when optical pickup is replaced.)

“8.3 DVD Self Diagnostic Function-Error Code”).

“8.2.1. Service Mode Table 1” for more information).

“8.2.2. Service Mode Table 2” for more information).

Optical Pick-up SelfDiagnosis”).

8.2. Service Mode Table

By pressing various button combin ations on the player and remote control unit can activate the various service modes for checking.

Special Note:

Due to the limitations of the no. characters that can be shown on FL Display, the “FL Display” button on the remote control uni is used to show the following page. (Display 1/Display 2).

SA-HT340GC / SA-HT340G CS / SA-HT340GS

8.2.1. Service Mode Table 1

Mode Name

Jitter check

Error code

check

Initial setting of laser drive

current

DVD laser

drive current

measurement

ADSC internal

RAM data

check

CD laser drive

current

measurement

Item

Description

Jitter check Jitter rate is measured and displayed. Measurement is repeatedly done in the cycle of one second. Read error counter starts from zero upon mode setting. When target block data failed to be read out, the counter advances by one increment. When the failure is caused by minor error, it may be corrected when retried to enable successful reading. In this case, the counter advances by one. When the error persists even after retry, the counter may jump by two or more.

Error code check The latest error code stored in the EEPROM IC is displayed.

Initial setting of laser drive current. Initial current value for each of DVD laser and CD laser is separately saved in the EEPROM IC.

DVD laser drive current measurement

·DVD laser drive current is measured and the result is displayed together with the initial value stored in the EEPROM IC. After the measurement, DVD laser emission is kept on. It is turned off when POWER key is switched off. (It is also turned off when POWER button on the player is switched off.)

ADSC internal RAM data check

·ADSC internal RAM data is read out and displayed.

CD laser drive current measurement CD laser drive current is measured and the result is displayed together with the initial value stored in the EEPROM IC. After the measurement, CD laser emission is kept on. It is turned off when POWER key is switched off. (It is also turned off when POWER button on the player is switched off.)

FL Display

Jitter rate

Jitter check mode

Jitter rate is shown in decimal notation to one place of decimal. Focus drive value is shown in hexadecimal notation.

Error code (play_err) is expressed in the following convention. Error code = 0 x DAXX is expressed: DVDnn UXX Error code = 0 x DBXX is expressed: DVDnn HXX Error code = 0 x DXXX is expressed: DVDnn FXXX Error code = 0 x 0000 is expressed: DVDnn F--* "xx" denotes the error code

Laser current measurement mode

The value denotes the current in decimal notation. The above example shows the initial current is 34mA and 28mA for DVD laser and CD laser respectively when the laser is switched on.

DVD laser current measurement mode

The value denotes the current in decimal notation. The above example shows the initial current is 34mA and the measured value is 32mA.

Address

The value is shown in hexadecimal notation. The above example shows the data in ADSC address OFAh is 6901h.

The value denotes the current in decimal notation. The above example shows the initial current is 28mA and the measured value is 26mA.

RAM data for specified address

CD laser current measurement mode

Key Operation

Front Key

In STOP (no disc) mode, press STOP button on the player, and "5" button on

the remote control unit. Press STOP or OPEN button to exit. Press "FL Display" on remote control unit for next page (FL Display).

In STOP (no disc) mode, press STOP button on the player, and "0" button on the remote control unit. * With pointing of cursor up and down on display. Cancelled automatically 5 seconds later. To exit, press [POWER] button on main unit or remote control.

In STOP (no disc) mode,

press STOP button on the

player, and PAUSE button

on the remote control unit.

Cancelled automatically 5 seconds later. Press "FL Display" on remote control unit for next page (FL Display) on values of laser drive current.

In STOP (no disc) mode, press STOP button on the player, and FUNCTIONS button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" on remote control unit for next page (FL Display) on values of dvd drive current.

In STOP (no disc) mode, press STOP button on the player, and "1" button on the remote control unit.

Press STOP or PLAY button.

In STOP (no disc) mode, press STOP button on the player, and "3" button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" on remote control unit for next page. (FL Display)

8.2.2. Service Mode Table 2

SA-HT340GC / SA-HT340G CS / SA-HT340GS

Micro-processor firmware version display & EEPROM checksum display.

Initialization

Region display

Item

DescriptionMode Name

Micro-processor firmware version display & EEPROM checksum display. EEPROM checksum is only available due to existence of EEPROM IC. (NO: NO EEPROM IC) If EEPROM IC is present, the checksum value will be displayed. It displays as "NG" if the EEPROM IC installed is not working properly.

Initialization User settings are cancelled and player is initialized to factory setting.

Region display & mode

(GC/GS)

(GCS)

FL Display

N: noPAL / P: PAL

Region No.

Existence of EEPROM

Panel controller jumper information

N: NTSC / 6: PAL60

Key Operation

Front Key

In STOP (no disc) mode, press STOP button on the player, and "7" button on the remote control unit. Cancelled automatically 5 seconds later. Press "FL Display" button on remote control unit for next page. (FL Display)

In STOP (no disc) mode, press STOP button on the player , and button on the remote control unit. Cancelled automatically 5 seconds later.

In STOP (no disc) mode, press STOP button on the player, and "6" button on the remote control unit. Cancelled automatically 5 seconds later.

DVD module firmware version display

Communication

error display

DVD Module

Reset

DVD module firmware version is displayed on the FL Display. The firmware version can be updated using recovery disc.

Displays frequency of communication errors between system control IC and mechanism control IC during DVD module.

To reset DVD Module. This process is used when the DVD module or flash ROM IC is replaced with a new one.

(GC/GS)

Region

(GCS)

Destination System controller generation

System controller version

In STOP (no disc) mode, press STOP button on the player, and "8" button on the remote control unit. Cancelled automatically 5 seconds later.

In STOP (no disc) mode, press STOP button on the player, and "MENU" button on the remote control unit. Cancelled automatically 5 seconds later.

While in initialization mode, press & hold STOP button on player, follow by "ENTER" button on the remote control unit. Cancelled automatically 5 seconds later.

SA-HT340GC / SA-HT340G CS / SA-HT340GS

8.2.3. Service Mode Table 3

Mode Name

Timer 1 check

Timer 1 reset

Timer 2 check

Timer 2 reset

Item

Description

Timer 1 check Laser operation timer is measured separately for DVD laser and CD laser.

Press "FL Display" button for next page of FL Display

Timer 1 reset Laser operation timer of both DVD laser and CD laser is reset all at once.

Timer 2 check Spindle motor operation timer

Press "FL Display" button for next page of FL Display

Timer 2 reset Spindle motor operation timer Press "FL Display" button for next page of FL Display

FL Display

Shown to the left is DVD laser time, and to the right is CD laser time. Time is shown in 4 digits of decimal notation in a unit of 10 hours. "0000" will follow "9999".

Shown to the left is DVD laser time, and to the right is CD laser time. It will clear to "0000" upon reset.

Time is shown in 5 digits of decimal notation in a unit of 10 hours. "00000" will follow "99999".

Time is shown in 5 digits of decimal notation in a unit of 10 hours. It will be cleared to "00000" upon activating this.

Key Operation

Front Key

In STOP (no disc) mode, press STOP button on the player, and " " button on the remote control unit. Cancelled automatically 5 seconds later.

While displaying Timer 1 data, press STOP button on the player, and " " button on the remote control unit. Cancelled automatically 5 seconds later.

In STOP (no disc) mode, press STOP button on the player, and " " button on the remote control unit. Cancelled automatically 5 seconds later.

While displaying Timer 2 data, press STOP button on the player, and " " button on the remote control unit. Cancelled automatically 5 seconds later.

8.2.4. Optical Pick-up Self-Diagnosis

The optical pickup self-diagnosis function and tilt adjustment check function have been included in this unit. When repairing, use the following procedure for effective self-diagnosis and tilt adjustment. Be sure to use the self-diagnosis function before replacing the optical pickup when "NO DISC" is display ed. As a guideline, you should replace the optical pickup when the value of the laser drive current is more than 55.

Note:

Press the power button to turn on the power, and check the value within three minutes before the unit warms up. (Otherwise, the result will be incorrect.)

SA-HT340GC / SA-HT340G CS / SA-HT340GS

8.3. DVD Self Diagnostic Function-Error Code

8.3.1. Error Code Table 1

Error

Code

U11 Focus servo error Focus coil NG (OPU unit abnormal) Press [ n STOP] on main

H01 Tray loading error /

H02 Spindle servo error, DSC

H03 Traverse motor error (Traverse motor, IC8251) Press [ n STOP] on main

H04 Tracking servo error Tracking coil NG (OPU unit abmormal) Press [ n STOP] on main

H05 Seek timeout error Timeout of unit when seeking time is

H15 Disc tray open detection

Diagnosis Contents Description of error Automatic FL Display Remarks

unit for next error.

abnormality

disc motor error

switch (S9001) failure

The tray is not able to open Press [ n STOP] on main

(Spindle servo, DSC (IC8251) Spindle motor, CLV servo error)

reached

The disc tray cannot be opened: it closes spontaneously

unit for next error

Press [ n STOP] on main unit for next error

unit for next error

Press [ n STOP] on main unit for next error

H16 Disc tray close detection

switch (S9001) failure

F61 Power digital amp IC op &

DC output voltage abnormal.

F76 Power digital amp IC op &

DC output voltage abnormal.

F500 DSC error DSC (IC8251) stops in the occurrence of

F501 DSC not Ready error DSC-system computer communication

F502 DSC Time out error Similar as F500 Press [ n STOP] on main

F503 DSC communication

Failure

F504 Abnormal adjusting DSC

data slice offset

The disc tray cannot be closed: it opens spontaneously

Upon power-on PCONT=High, DCDET=Low

Speaker Jack shorted or amp circuit Press [ n STOP] on main

servo error (startup, focus error, etc.)

error (Communication failure caused by idling of DSC)

Communication error (result error occurred although communication command was sent)

Press [ n STOP] on main unit for next error

unit for next error

Press [ n STOP] on main unit for next error

unit for next error

Press [ n STOP] on main unit for next error

F505 DSC Attention error Similar as F500 Press [ n STOP] on main

unit for next error

8.3.2. Error Code Table 2

SA-HT340GC / SA-HT340G CS / SA-HT340GS

Error

Code

F506 Invalid media Disc is flipped over, TOC unreadable,

F600 Access failure to

F601 Indeterminate sector ID

F602 Access failure to LEAD-IN

F603 Access failure to KEYDET

F610 ODC abnormality No permission for command execution Press [ n STOP] on main

F611 No CRC OK for a specific

Diagnosis Contents Description of error Automatic FL Display Remarks

Press [ n STOP] on main unit for next error

unit for next error

Press [ n STOP] on main unit for next error

management information caused by demodulation error

requested

caused by demodulation error

time (CD)

incompatible disc media

Operation stopped because navigation data is not accessible caused by the demodulation defect

Operation stopped caused by the request to access abnormal ID data

LEAD IN data unreadable Press [ n STOP] on main

Access failure to CSS data of disc Press [ n STOP] on main

Access failure to seek address in CD series

F612 No CRC OK for a specific

time (DVD)

F620 Laser safeguard: high

temperature condition

F621 Laser safeguard: circuit

failure condition

F103 Illegal highlight Position Big possibility of disc specification

F4FF Force initialize failure (time

out)

F700 MBX overflow When replying message to disc manager Press [ n STOP] on main

F701 Message command does

not end

F702 Message command

changes

Access failure to ID data in DVD series Press [ n STOP] on main

High temperature of the laser guide unit (OPU unit)

Circuitry failure of the laser guide unit (OPU unit)

violation during highlight display

Timeout when force initialization fails Press [ n STOP] on main

Next message is sent before replying to disc manager

Message is changed before it is sent as a reply to disc manager

unit for next error

Press [ n STOP] on main unit for next error

unit for next error

Press [ n STOP] on main unit for next error

SA-HT340GC / SA-HT340G CS / SA-HT340GS

8.3.3. Error Code Table 3

Error

Code

F880 Task number is not

F890 Sending message when

F891 Message couldn’t be sent

F893 FLASH ROM IC problem FLASH ROM IC installed is not operating

F894 EEPROM abnormality EEPROM IC installed is not operating in

F895 Region setting abnormality Firm version agreement check for factory

F896 No existence model Firm version agreement check for factory

Diagnosis Contents Description of error Automatic FL Display Remarks

appropriate

message is being sent to AV task

to AV task

Message coming from a non-existing task

Sending message to AV task Press [ n STOP] on main

Begin sending message to AV task Press [ n STOP] on main

properly (Neccessary replacement of FLASH ROM IC) or firmware problem

normal condition (EEPROM contains neccessary data)

preset setting failure prevention. Check region setting & re-initialize

preset setting failure prevention

Press [ n STOP] on main unit for next error

unit for next error

Press [ n STOP] on main unit for next error

F897 Initialize is not completed Initialize completion check for factory

F898 Disagreement of hardware

and software

F8A0 Message command is not

appropriate

preset setting failure prevention

Unsuitable combination of AV DECORDER, SDRAM and FLASH ROM (firmware)

Begin sending message to AV task Press [ n STOP] on main

Press [ n STOP] on main unit for next error

unit for next error

Note:

An error code will be canceled if a power supply is turned OFF.

*1: CPPM is the copy guard function beforehand written in the disk for protection of copyrights.

*2: CEC is the consumer electronic control used for high-level user control of HDMI-connected devices.

*3: HDCP is the specification developed to control digital audio & video contents transmission for DVI or HDMI connections.

8.4. Sales Demonstration Lock Function

This function prevents discs from being lost when the unit is used for sales demonstrations by disabling the disc eject function. "LOCKED" is displayed on the unit, and ordinary operation is disabled.

8.4.1. Setting

· Prohibiting removal of disc

1. Select the DVD/CD function.

2. Press and hold down the “___LOCKED_” appears when the function is activated.)

Note:

OPEN/CLOSE

, DISC CHECK and DISC CHANGE buttons are invalid and the player display s “___LOCKED_” while

the lock function mode is entered.

· Prohibiting operation of selector and disk

1. Select the DVD/CD function.

button and the power button on the player for at least three seconds. (The message,

SA-HT340GC / SA-HT340G CS / SA-HT340GS

2. Press and hold down the button and the power button on the player for at least three seconds. (The message, “___LOCKED_” appears when the function is activated.)

Note:

The following buttons are invalid and the player display s “___LOCKED_” while the lock function mode is entered.

Player , , , SELECTOR, , , VOLUME KNOB, DISC CHECK, DISC CHANGE, DISC1-DISC5

Remote

controller unit

SLEEP, REPEAT, 0~9, , RETURN, TOP MENU, , , , , , , POSITION MEMORY, TUNER/BAND, D.MIX, CH SELECT/ TEST, SET UP/ MUTING, DISPLAY, GROUP, TV, VCR/ AUX, QUICK REPLAY, SUBTITLE , FL DISPLAY, CH & VOLUME

8.4.2. Cancellation

The lock can be cancelled by the same procedure as used in setting. ("UNLOCK" is display ed on cancellation. Disconnecting the power cable from power outlet does not cancel the lock.)

8.5. Service Precautions

8.5.1. Recovery after the DVD player is repaired

· W hen the FLASH ROM IC or HDMI module P.C.B. is replaced, carry out the recovery processing to optimize the drive.

Playback the recovery disk to process the recovery automatically.

· Recovery disc (Product number: RFKZD03R005) [SPG]

· Performing recovery process

1. Load the recovery disc RFKZD03R005 on to the player and run it.

2. Recovery is performed automatically. When it is finished, a message appears on the screen.

3. Remove the recovery disc.

4. Turn off the power.

5. Initialize the player.

8.5.2. Firmware version-up of the DVD player

· The firmware of the DVD player may be renewed to improve the quality including operability and playab ility to the substandard

discs.processing to optimize the drive.

The recovery disc has also firmware version-up.

· After version-up, recovery processing is executed automatically .

· Part number of the recovery disc for version-up will be noticed when it is supplied.

· Updating firmware

1. Load the recovery disc on to the player and run it.

2. Firmware version of the player is automatically checked. Appropriate message appears whenever necessary.

3. Using remote controller´s cursor key, select whether version updating is to be done or not. (Selection of Yes/No)

4. a. If Yes is selected, version updating is performed.

b. If No is selected, only recovery is performed.

5. a. When updating is finished, remove the disc according to the message appearing on the screen.

b. Remove the disc according to the message appea ring on the screen.

6. Turn off the power.

Note:

If the AC power supply is shut out during version-up due to a power failure, the version-up is improperly carried out.

In such a case, replace the FLASH ROM IC and carry out the version-up again.

8.5.3. DVD Module Reset

· W hen after replacing Flash Rom IC or the DVD Module P.C.B., FL displays error code “ DVD F897”. This means the unit is not

initialized properly and the following process needs to be carry out.

· Procedures:

1. Press

2. FL display show “INIT”

3. While still pressing “STOP” button on main unit, press “ENTER” on remote control. (To reset)

4. FL will display “RESET” before FL display will change to TOC reading again.

5. Power off unit. Unplug the AC cord.

6. Power on the unit. It should be no problem. If problem persist check on the DVD module P.C.B. or FLASH ROM IC.

on remote control while pressing “STOP” button on main unit. (To enter into initialization mode)

SA-HT340GC / SA-HT340G CS / SA-HT340GS

9 Assembling and Disassembling

“ATTENTION SERVICER”

Be carefu l when disassembling and servicing.

Some chassis components may have sharp edges.

Special Note:

1. This section describes the disassembly procedures for all the major printed circuit boards and main components.

2. Before the disassembly process was carried out, do take special note that all safety precautions are to be carried out.

(Ensure that no AC power supply is connected during disassemblin g.)

3. For assembly after operation checks or replacement, reverse the respective procedures.

Special reassembly procedures are described only when required.

4. The Switch Regulator IC may have high temperature after prolonged use.

Use caution when removing the top cabinet and avoid touching heat sinks located in the unit.

5. Select items from the following index when checks or replacement are required.

· Disassembly of Top Cabinet

· Disassembly of DVD Lid (When taking out disc manually)

· Disassembly of Front Panel

· Disassembly of FL P.C.B., Mic P.C.B. & Volume P.C.B.

· Disassembly of Mechanism Unit

· Disassembly of DVD Module P.C.B.

· Disassembly of Rear panel

· Disassembly of SMPS Module P.C.B.

· Disassembly of Main P.C.B. & Tuner Extent P.C.B.

· Disassembly of Digital Amp IC (IC5100/IC5200/IC5300)

lSMPS Module P.C.B. (SMPS) Replacement

1. This model uses SMPS Module to provide the necessary voltages for the unit.

2. It is advisable to replace the SMPS Module once upon detecting of non-working conditions. Do not attempt to repair

or replace it by components.

3. Non-working conditions include:

lWith AC supply but no supply voltages after checking at CN2 and/or CN3 respec tively.

lBroken fuse. (Substitute compatible part for fuse: K5D502BNA005)

lWire connection problem.

lNon-working parts in SMPS Module P.C.B. (Check components)

9.1. Disassembly Flow Chart

SA-HT340GC / SA-HT340G CS / SA-HT340GS

9.2. Main Components and P.C.B. Locations

SA-HT340GC / SA-HT340G CS / SA-HT340GS

9.3. Disassembly of Top Cabinet

Step 1 Remove 4 screws.

Step 2 Remove 3 screws. (Rear view)

Step 3 Lift up and remove the top cabinet.

9.4. Disassembly of the DVD Lid (When taking out disc manually)

Step 1 Detach the gear for drawing out tray from the

mechanism unit. Inserts a screw driver into the gear. (The gear jig)

Step 2 Insert the gear jig into the tray open/ close hole.

Step 3 Turn the gear jig counterclockwise to open the tray.

Note : Do not use force to push the tray backwards as it can

damage the mechanism unit.

Step 4 Turn the gear jig clockwise to return tray.

Step 5 Release the tabs and remove DVD lid.

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