Panasonic SAXR-57-E, SAXR-57-EB, SAXR-57-EG Service manual

AV Control Receiver

SA-XR57E SA-XR57EB SA-XR57EG

Colour

(S)... Silver Type

ORDER NO. MD0603092C2

Specification

n AMPLIFIER SECTION

Power output (at AC 230-240 V)

DIN 1 kHz (T.H.D. 1 %)

20 Hz-20 kHz continuous power output both channel driven

Total harmonic distortion

rated power at 20 Hz-20 kHz

Power bandwidth

both channels driven, -3 dB 4 Hz-88 kHz

Power output each channel driven (at AC 230-240V)

DIN 1 kHz (T.H.D. 1 %)

Front (L/R) 100 W (6 Ω )

Center 100 W (6 Ω )

Surround (L/R) 100 W (6 Ω )

Surround Back (L/R) 100 W (6 Ω )

Load impedance

Front (L/R)

AorB

A and B 6to16Ω

BI-WIRE 6to16Ω

Center 6to16Ω

Surround (L/R) 6to16Ω

Surround Back (L/R) 6to16Ω

Frequency response

CD, DVD, DVD RECORDER, VCR, TV/STB, AUX

2 x 100 W (6 Ω)

2x80W(6Ω)

0.09 % (6 Ω)

(6 Ω,0.9%)

4Hzto88kHz,±3dB

6to16Ω

DVD 6CH 4Hzto44kHz,±3dB

Input sensitivity and impedance

CD, DVD/DVD 6CH, DVD RECORDER, VCR, TV/STB, AUX

S/N at rated power (6 ΩΩΩΩ)

CD, TV/STB, DVD, DVD RECORDER (Digital Input)

Tone controls

BASS 50 Hz, +10 to -10 dB

TREBLE 20kHz,+10to-10dB

Channel balance (250 Hz-6.3 kHz)

Channel separation 55 dB

Subwoofer frequency response (-6 dB) 7 Hz to 200 Hz

Digital input

(Optical) 2

(Coaxial) 2

HDMI (version 1.2a)

(Input) 1

(Output)

n FM TUNER SECTION

Frequency range 87.50 to 108.00 MHz

Sensitivity

S/N 30 dB 1.5 µV / 75Ω

S/N 26 dB 1.3 µV / 75Ω

S/N 20 dB 1.2 µV / 75Ω

IHF usable sensitivity (IHF,58) 1.5 µV / 75Ω

200 mV / 22 kΩ

90 dB

(IHF, A: 103 dB)

±1 dB

SA-XR57E / SA-XR57EB / SA-XR57EG

IHF 46 dB stereo quieting sensitivity 22 µV / 75Ω

Total harmonic distortion

MONO 0.2%

STEREO 0.3%

S/N

MONO 60 dB

STEREO 58 dB

Frequency response 20 Hz to 15 kHz,

+1 dB, -2 dB

Alternate channel selectivity ±400 kHz, 65 dB

Capture ratio

Image rejection at 98 MHz 40 dB

IF rejection at 98 MHz

Spurious respone rejection at 98 MHz 70 dB

AM suppression 50 dB

Stereo separation 40 dB

Carrier leak

Channel balance (250 Hz-6.3 kHz)

Limiting point

Bandwidth

IF amplifier

FM demodulator 1000 kHz

Antenna terminal 75 Ω (unbalanced)

19 kHz, -30 dB

38 kHz, -50 dB

1.5 dB

70 dB

±1.5 dB

1.2 µV

180 kHz

IF rejection (at 999 kHz) 50 dB

n VIDEO SECTION

Output voltage at 1 V input (unbalanced) 1±0.1 Vp-p

Maximum input voltage 1.5 Vp-p

Input/output impedance 75 Ω (unbalanced)

S-Video

Input DVD, DVD Recorder,

TV/STB

Output TV MONITOR

Component Video

Input DVD Recorder,

TV/STB

Output TV MONITOR

n GENERAL

Power supply

Power consumption 140 W

Dimensions (W × H × D) 430 mm × 107.5 mm ×

Mass 4.7 kg

Power consumption in standby mode:

Power consumption in HDMI off mode:

AC 230 to 240 V, 50

390 mm

0.9 W

0.35 W

n AM TUNER SECTION

Frequency range

Sensitivity

Selectivity (at 999 kHz) 55 dB

522 to 1611 kHz

(9 kHz steps)

530 to 1620 kHz

(10 kHz steps)

20 µV, 330 µV/m

Notes:

1. Specifications are subject to change without notice.

Mass and dimensions are approximate.

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

CONTENTS

Page Page

1 Safety Precautions

1.1. GENERAL GUIDELINES

1.2. Caution for AC Cord

1.3. Before Repair and Adjustment

1.4. Protection Circuitry

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

3 Handling the Lead-free Solder

3.1. About lead free solder (PbF)

4 Accessories

5 Operating Instructions Procedures

5.1. Remote Control Operation

5.2. Main Unit Operation

5.3. Home Theater connections

5.4. Connecting other equipment

6 Self Diagnosis Display Function

6.1. Automatically Displayed Error Codes

6.2. Display Details

6.3. Returning to Normal Display

6.4. Overload/Shutdown Detection intenal Condition

6.5. Overload/Thermal Detection Display

6.6. Activating Self Diagnosis Function (Servicing Mode)

6.7. Analog 6.1 CH Output Check Method

6.8. Returning to Normal Display

6.9. Activating Self Diagnosis Function (Doctor Mode)

7 HDMI Checking Method

SA-XR57E / SA-XR57EB / SA-XR57EG

7.1. What is HDMI? 24

7.2. Advanced Digital Pictures

7.3. Advanced Digital Sound

7.4. Easy to Use

7.5. HDMI Compatible Products

7.6. Main features and benefits

7.7. Other features and benefits

8 Assembling and Disassembling

8.1. Caution

8.2. Disassembly flow chart

8.3. Main Parts Location Diagram

8.4. Disassembly of Top Cabinet

8.5. Disassembly and Checking the DSP P.C.B. (Side A/B)

and Main P.C.B. (Side A)

8.6. Disassembly of Tuner Pack and Tuner Extent P.C.B.

8.7. Disassembly and Checking of Speaker P.C.B.

8.8. Disassembly and Checking of HDMI P.C.B. (Side A/B)

8.9. Disassembly Support Bar

8.10. Disassembly and Checking of Video & Optical P.C.B.

8.11. Disassembly of Rear Panel

8.12. Disassembly and Checking of Input P.C.B.

8.13. Disassembly and Checking of Main P.C.B. (Side B)

8.14. Disassembly and Checking of Power P.C.B.

8.15. Disassembly of Front Panel

8.16. Disassembly and Checking of Panel P.C.B., Volume

P.C.B. and Headphone P.C.B.

8.17. Insert wire & Wire dressing

9 Voltage Measurement & Waveform Chart

9.1. Voltage Measurement

9.2. Waveform Chart

10 Wiring Connection Diagram

11 Block Diagram

12 Notes of Schematic Diagram

13 Schematic Diagram

13.1. DSP CIRCUIT

13.2. MAIN (DIG1) CIRCUIT

13.3. MAIN (DIG2) CIRCUIT

13.4. MAIN (DIG3) CIRCUIT

13.5. INPUT CIRCUIT and TUNER EXTENT CIRCUIT

13.6. PANEL CIRCUIT

13.7. SPEAKER CIRCUIT

13.8. HEADPHONE CIRCUIT, VOLUME CIRCUIT and POWER

CIRCUIT

13.9. HDMI CIRCUIT

13.10. VIDEO & OPTICAL CIRCUIT

14 Printed Circuit Board Diagrams

14.1. DSP P.C.B

14.2. MAIN P.C.B

14.3. INPUT P.C.B

14.4. TUNER EXTENT P.C.B, SPEAKER P.C.B, HEADPHONE

P.C.B and VOLUME P.C.B

14.5. HDMI P.C.B

14.6. PANEL P.C.B and VIDEO & OPTICAL P.C.B

14.7. POWER P.C.B

15 Illustration of IC's, Transistors and Diodes

16 Terminal Function of IC's

16.1. IC6801 (C2BBGF000833) IC MICROPROCESSOR

16.2. IC6901 (C2CBJG000721) IC SUB MICRO-P

17 Exploded Views

17.1. Cabinet Parts Location

17.2. Packaging

18 Replacement Parts List

100

101

102

104

105

107

108

111

113

115

SA-XR57E / SA-XR57EB / SA-XR57EG

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, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

3. After servicing, check for leakage current checks to prevent 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. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabine t 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 5.2Ω. 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 transfo rmer for this check.

2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitors, between each expose d 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 expose d 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. should the measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is returned to the customer.

1.2. Caution for AC Cord

SA-XR57E / SA-XR57EB / SA-XR57EG

1.3. Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C707, C717, C718 and C924 through a 10Ω, 1W resistor to ground.

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 230 to 240V, 50 Hz in NO SIGNAL mode (volume min) should be 200 ~ 600 mA.

1.4. 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 speaker systems with an impedance less than the indicated rated impeda nce of the amplifier are used.

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.

SA-XR57E / SA-XR57EB / SA-XR57EG

2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by 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-equiped assembly, drain off any ESD on your body by touchin g 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 equiped with ES devices, place the assembly on a conductive surface such as aluminium foil, to prevent electrostatic charge build up 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 to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient 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, aluminium 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 installed.

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).

SA-XR57E / SA-XR57EB / SA-XR57EG

3 Handling the Lead-free Solder

3.1. About lead free solder (PbF)

Distinction of PbF P.C.B.:

P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.

Caution:

· Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please

use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).

· Pb free solder will tend to splash when heated too high (about 1100°F/600°C).

· W hen soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the

soldering points with the Pb free solder until it melts enough.

4 Accessories

Note : Refer to Packing Materials & Accessories Parts List (Section 18) for the part number.

Remote control

AC cord (For

E/EG)

SA-XR57E / SA-XR57EB / SA-XR57EG

AC cord (For EB)

FM antenna wire

AM loop antenna

Antenna

plug

adapter

(For EB)

SA-XR57E / SA-XR57EB / SA-XR57EG

5 Operating Instructions Procedures

5.1. Remote Control Operation

5.2. Main Unit Operation

5.3. Home Theater connections

SA-XR57E / SA-XR57EB / SA-XR57EG

5.4. Connecting other equipment

SA-XR57E / SA-XR57EB / SA-XR57EG

6 Self Diagnosis Display Function

This unit is equipped with the self diagnosis display function, which alarms faulty operation with error code. Use this function during servicing.

6.1. Automatically Displayed Error Codes

An error code automatically appears on the display (LCD) when faulty operation is detected. Refer to Fig. 6.1.

Fig. 6.1

6.2. Display Details

Refer to the following table.

LCD display Symptom Cause and Remedy OVERLOAD Speaker short, amplifier failure Speaker short and failure in power

Humidity protection activated

F70 Communication error between sub micro-

processor and its peripheral LSI

F76 When the power is turned on, the unit

power automatically turns off; the power cannot be turned on.

amplifier, pre-amplifier circuits. Check for faulty parts and replace with new parts if necessary.

Failure sub-micro processor and its peripherals LSI. Check for faulty parts and replace with new parts if necessary.

Failure in the power circuit system of the unit. This may happen when the direct current electricity is supplied to speaker terminals. Check for the above and replace with new parts if necessary.

6.3. Returning to Normal Display

Press the POWER button on the unit to exit the function. The power is turned off.

6.4. Overload/Shutdown Detection intenal Condition

It detects OVERLOAD, POWER MALFUNCTION with [THRM_DET], [SHORT_DET] and [DC_DET] input port. It detects the following condition depending on the input of the port as below table.

(H: DC ± 5V / L: DC ± 0V)

PROT Detection of malfunction Display and operation

SHORT_DET THRM_DET DC_DET

H L H Normal -----

L L H Speaker Short, Malfunction of Amplifier [OVERLOAD] / POWER OFF L H H Detection of THERMAL PROTECTION

- - L Detection of POWER MALFUNCTION [ _ _ _ F76 _ _ _ ] / POWER OFF

6.5. Overload/Thermal Detection Display

When overload is detected, automatic POWER OFF will occur. But if any key on the remote control other than the [POWER] key is pressed before that (including the [HELP] key), the scroll display will show [SWITCH_OFF_POWER]. Then, 1 second after display of message, [OVERLOAD] will be shown on the scroll display .

6.6. Activating Self Diagnosis Function (Servicing Mode)

This mode can be used during servicing.

1. Plug the AC adapte r to the power source. Press and hold down the [ENTER] button and the [SPEAKERS A] button, and then press the [POWER] button at the same time.

SA-XR57E / SA-XR57EB / SA-XR57EG

2. The message, [SERVICE] appears on the display for three seconds, and then it will display the following. Refer to Fig. 6.2.

Fig. 6.2

3. When the [SPEAKER A] button is pressed, the current program filing number [M023 NO] appears. The *** digit indicates the ROM checksum used for ROM collection, and if the unit is not loaded with ROM, "NO" appears.

When the [SPEAKER B] button is pressed, the sub micro computer program filing number [S018 NO] appears. The *** digit indicates the ROM checksum used for ROM collection, and if the unit is not loaded with ROM, "NO" appears.

6.7. Analog 6.1 CH Output Check Method

When the [SUBWOOFER] button on the remote controller, the function is switched to "Input Inspection Mode", which output analog input signals at L channel of VCR analog input to all channels.

6.8. Returning to Normal Display

Press the [POWER] button on the unit to exit the function. The power is turned off.

6.9. Activating Self Diagnosis Function (Doctor Mode)

This mode can be used during servicing.

1. Plug the AC adapter to the power source. Press and hold down the [MENU-SETUP, RETURN] button and the [SPEAKERS A] button, and then press the [POWER] button at the same time.

2. Initialize all the setting and set the frequency “99.7MHz” to Tuner.

The message, “_DOCTOR_” appears on the display for three seconds, and then it will display the following. Refer to Fig. 6.3.

SA-XR57E / SA-XR57EB / SA-XR57EG

Fig. 6.3

3. Doctor mode function at some remote control codes as below table.

Remote Control Test Mode Function and settings

Selector Sound Mode other settings Vol/Tone CH 1 TUNER STEREO Frequency : FM min -48dB/0dB CH 2 TUNER STEREO Frequency : FM max -48dB/0dB CH 3 TUNER STEREO FM 98.3MHz -18dB/0dB CH 4 TUNER STEREO Frequency : AM min -48dB/0dB CH 5 TUNER STEREO Frequency : AM max -48dB/0dB CH 6 TUNER STEREO AM 765kHz (9kHz/step) -18dB/0dB CH 7 TUNER STEREO AM 770kHz (10kHz/step) -18dB/0dB CH 8 If the input selector is TUNER, auto tuning function is started to upward on current frequency. CH 9 If the input selector is TUNER, auto tuning function is started to downward on current frequency. CH 0 All indicators of FL are displayed. All LED are off. Refer to Fig. 6.4.

Note : After this setting, only ‘POWER’ button or ‘Checker Command’ code by the remote control can be entered.

CH UP Check Main µP software version.

CH DOWN Check µP software version and HDMI µP software version are displayed at each time pressing.

SUBWOOFER VCR (Analog) - All CH Output Mode -18dB/0dB

MUTING DVD 6CH - - -18dB/0dB

PLIIx CD STEREO Analog -18dB/0dB

NEO:6 TV STEREO Analog -18dB/0dB

TV/VIDEO DVD STEREO Analog -18dB/0dB

LEVEL DVR STEREO Analog -18dB/0dB

EFFECT CD STEREO Digital (COAX 2) -48dB/0dB

OFF TV STEREO Digital (OPT 1) -48dB/0dB SFC MOVIE DVD STEREO Digital (COAX 1) -48dB/0dB SFC MUSIC DVR STEREO Digital (OPT 2) -48dB/0dB

TEST No change SURROUND Scan the test noise output channel with 500ms

intervals

-/L CD STEREO Balance is set to leftmost -18dB/0dB

+/R CD STEREO Balance is set to rightmost -18dB/0dB

DIMMER If the input selector is TUNER in E2 mode. Display Mode (PS/PTY) is changed.

-18dB/0dB

Fig. 6.4

7 HDMI Checking Method

1. Connection of HDMI system

SA-XR57E / SA-XR57EB / SA-XR57 EG

2. Check of HDMI Sound

a. Using the [DVD AUDIO TEST DISC V-612] and DVD-VIDEO disc with Dolby Digital signal.

b. [DVD AUDIO TEST DISC V-612] - Track No. 92 (96kHz, 5.1ch). Track No. 40 (Zero) Check the Level and Noise, output from

L / C / R / SL / SR / SW / speaker or pin.

c. [DVD AUDIO TEST DISC V-612] - Track No. 7 (192kHz, 2ch)

if this source can be reproduced, it is OK.

3. Check of HDMI Picture

a. The picture quality of TV is checked by watching that using [DVD TEST DISK S-20] or DVD disc with the colour bar signal.

b. [DVD TEST DISK S-20] - Track No. 2 (Flag of the rising sun)

[Colour bar disc] - Colour bar signal.

c. Make on DVD Setup Picture

Comfirmed that there are neither distortion nor a noise on the screen.

· If it is a picture quality equal when DVD was connected directly to TV, it is OK

SA-XR57E / SA-XR57EB / SA-XR57 EG

1. Connect directly DVD player to TV.

2. Connect DVD player to set then connect it to TV.

3. Do the comparison for (1) and (2) if same, it is OK.

7.1. What is HDMI?

The High-Definition Multimedia Interface (HDMI) is rapidly emerging as the connection standard for HDTV. Developed by Sony, Hitachi, Thomson (RCA), Philips, Matsushita (Panasonic), Toshiba and Silicon Image as the digital interface standard for the consumer electronics market, HDMI combines high-definitio n video and multi-channel audio in a single digital interface to provide crystal-clear digital quality over a single cable. One cable for audio and video dramatically simplifies home theate r system installation and eliminates the cable mess behind entertainment system components. HDMI offers significant advantages over analog A/V connections, including the ability to transmit uncompressed digital video and audio content. Hollywood studios and cable and satellite operators support HDMI.

HDMI is based on Silicon Image´s TMDS

ｮ

technology and is fully backward compatible with PCs and displays incorporating the Digital Visual Interface (DVI) standard, which was also pioneered by Silicon Image. Because it was designed specifically for consumer electronics applications, HDMI offers additional consumer enhancements. Content comes in a variety of sizes, resolutions and formats, and HDMI systems will automatically configure to display content in the most effectiv e format. In addition, with a point and click, HDMI´s integrated remote capability automatically configures the home theater system on deman d, turning on or off the components necessary to view a DVD, listen to a CD or watch cable or satellite TV.

7.2. Advanced Digital Pictures

SA-XR57E / SA-XR57EB / SA-XR57 EG

7.3. Advanced Digital Sound

7.4. Easy to Use

SA-XR57E / SA-XR57EB / SA-XR57 EG

7.5. HDMI Compatible Products

7.6. Main features and benefits

· All digital provides the highest quality —

HDMI is the only interface in consum er electronics that can carry both uncompressed high-definition video and uncompressed multi-channel audio in all HD formats, including 720p, 1080i and even upcoming 1080p.

· A single cable connection means no more cable mess —

Since HDMI carries all digital video and audio channels, there is only one cable to connect any HDMI-enabled source device to a display.

7.7. Other features and benefits

· Automatic format adjustment matches content to preferred viewing format —

HDMI systems can automatically configure to display content in its most effectiv e format. If cable TV content jumps from 16:9 format to standard 4:3, an HDMI-enabled TV will automatically adjust to match the ideal format.

SA-XR57E / SA-XR57EB / SA-XR57 EG

· Integrated remote provides simple control of your system —

HDMI allows CE manufacture rs to build intelligence into their devices so that one remote click can configure your entire HDMIenabled system to turn certain components on or off depending on the specific components that are required.

· PC Compatibility enables viewing of your PC data on your HDTV —

HDMI-enabled devices are backwards compatible with the broad array of DVI-based PCs so that you can display gaming or entertainment content on your HDTV.

SA-XR57E / SA-XR57EB / SA-XR57 EG

8 Assembling and Disassembling

8.1. Caution

“ATTENTION SERVICER”

Some chassis components may be have sharp edges. Be careful when disassembling and servicing.

1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main

components.

2. For reassembly after operation checks or replacement, reverse the respective procedures.

Special reassembly procedures are described only when required.

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

Warning:

This product uses a laser diode. Refer to “Precaution of Laser Diode”.

ACHTUNG:

Die Lasereinheit nicht zerlegen.

Die Lasereinheit darf nur gegen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden.

Below is the list of disassembly sections

· Disasse mbly of Top Cabinet

· Disasse mbly and Checking the DSP P.C.B. (Side A/B) and Main P.C.B. (Side A)

· Disasse mbly of Tuner Pack and Tuner Extent P.C.B.

· Disasse mbly and Checking of Speaker P.C.B.

· Disasse mbly and Checking of HDMI P.C.B. (Side A/B)

· Disasse mbly Support Bar

· Disasse mbly and Checking of Video & Optical P.C.B.

· Disasse mbly of Rear Panel

· Disasse mbly and Checking of Input P.C.B.

· Disasse mbly and Checking of Main P.C.B. (Side B)

· Disasse mbly and Checking of Power P.C.B.

· Disasse mbly of Front Panel

· Disasse mbly and Checking of Panel P.C.B., Volume P.C.B. and Headphone P.C.B.

· Insert wire & Wire dressing

SA-XR57E / SA-XR57EB / SA-XR57 EG

8.2. Disassembly flow chart

The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing.

To assemble the unit, reverse the steps shown in the chart below.

SA-XR57E / SA-XR57EB / SA-XR57 EG

8.3. Main Parts Location Diagram

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