Panasonic SAXR-700-EG Service manual

AV Control Receiver

SA-XR700EG

Colour

(S)... Silver Type

ORDER NO. MD0608274CE

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 channels driven

Total harmonic distortion

rated power at 20 Hz-20 kHz

Power bandwidth

both channels driven, -3 dB

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

DIN 1kHz (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 4to16Ω

A and B 6to16Ω

BI-WIRE 4to16Ω

Center 6to16Ω

Surround (L/R) 6to16Ω

Surround Back (L/R) 6to16Ω

Frequency response

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

DVD 6CH 4Hzto44kHz,±3dB

2 x 145 W (4 Ω)

2x80W(6Ω)

0.09 % (6 Ω)

4Hzto88kHz

(6 Ω,0.9%)

4Hzto88kHz,±3dB

Input sensitivity and impedance

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

S/N at rated power (6 ΩΩΩΩ)

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

Tone controls

BASS

TREBLE 20kHz,+10to-10dB

Channel balance (250 Hz-6.3 kHz) ±1 dB

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)

(Output) 1

n FM TUNER SECTION

Frequency range 87.5 to 108.00 MHz

Sensitivity

S/N 30 dB 1.5 µV/75 Ω

S/N 26 dB 1.3 µV/75 Ω

S/N 20 dB 1.2 µV/75 Ω

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

IHF 46 dB stereo quieting sensitivity 22 µV/75 Ω

200 mV/22 kΩ

90 dB

(IHF, A: 103dB)

50 Hz, +10 to -10 dB

SA-XR700EG

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, -2dB

Alternate channel selectivity ±400 kHz, 65 dB

Capture ratio 1.5 dB

Image rejection at 98 MHz

IF rejection at 98 MHz 70 dB

Spurious response rejection at 98 MHz

AM suppression 50 dB

Stereo separation 1kHz,40dB

Carrier leak 19 kHz, -30 dB

38 kHz, -50 dB

Channel balance (250 Hz-6.3 kHz) ±1.5 dB

Limiting point

Bandwidth

IF amplifier 180 kHz

FM demodulator

Antenna terminal 75 Ω (unbalanced)

n AM TUNER SECTION

Frequency range

522 to 1611 kHz (9 kHz steps)

530 to 1620 kHz (10 kHz steps)

Sensitivity 20 µV, 330 µV/m

Selectivity (at 999 kHz) 55 dB

40 dB

70 dB

1.2 µV

1000 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 TV/STB, BD/DVD

PLAYER, DVD

RECORDER, AUX

Output

Component Video

Input

Output

n GENERAL

Power supply

Power consumption 140 W

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

Mass

Power consumption in standby mode: 0.9 W

Power consumption in HDMI off mode: 0.45 W

Notes:

1. Specifications are subject to change without notice.

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

TV MONITOR

TV/STB,

DVD RECORDER

TV MONITOR

AC 230 to 240 V, 50

390 mm

Approx 5.3 kg

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 Service caution based on legal restrictions

3.1. General description about Lead Free Solder (PbF)

4 Accessories

5 Operating Instructions Procedures

5.1. Remote Control Operation

5.2. Main Unit Operation

5.3. Main Unit Connections

6 Self Diagnosis Display Function

6.1. Automatically Displayed Error Codes

6.2. Display Details

6.3. Overload/Shutdown Detection intenal Condition

6.4. Overload/Thermal Detection Display

6.5. Activating Self Diagnosis Function (Servicing Mode)

6.6. Returning to Normal Display

6.7. Activating Self Diagnosis Function (Doctor Mode)

7 HDMI Checking Method

7.1. What is HDMI?

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

SA-XR700EG

8 Assembling and Disassembling 30

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., Headphone P.C.B., Selector P.C.B. and Front

Jack 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

13.6. PANEL CIRCUIT

13.7. SPEAKER CIRCUIT

13.8. TUNER EXTENT CIRCUIT, HEADPHONE CIRCUIT,

VOLUME CIRCUIT and SELECTOR CIRCUIT

13.9. POWER CIRCUIT

13.10. HDMI CIRCUIT

13.11. VIDEO & OPTICAL CIRCUIT

13.12. FRONT JACK 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, VOLUME P.C.B, SELECTOR P.C.B and FRONT

JACK P.C.B

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

14.6. POWER P.C.B

14.7. HDMI P.C.B

15 Illustration of IC's, Transistors and Diodes

16 Terminal Function of IC's

16.1. IC6801 (C2CBKJ000204) IC MICROPROCESSOR

16.2. IC6901 (C2CBKJ000205) IC SUB MICRO-P

17 Exploded Views

17.1. Cabinet Parts Location

17.2. Packaging

18 Replacement Parts List

100

104

106

107

108

110

111

112

113

114

117

118

121

123

125

SA-XR700EG

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-XR700EG

1.3. Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C707, C717, C718, C725 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 - 240 V, 50 Hz in NO SIGNAL mode (at volume minimun) should be 200 ~ 600 mA.

SA-XR700EG

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-XR700EG

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-XR700EG

3 Service caution based on legal restrictions

3.1. 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-XR700EG

4 Accessories

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

Remote

control

AC cord

(For the United

Kingdom and

Republic of

Ireland)

FM antenna

wire

AM loop antenna

Calibration MIC

ANT Adapter (For the

United

Kingdom

and

Republic

of Ireland)

5 Operating Instructions Procedures

5.1. Remote Control Operation

SA-XR700EG

5.2. Main Unit Operation

5.3. Main Unit Connections

5.3.1. Video & Audio Terminals

SA-XR700EG

5.3.2. S-Video & Audio Terminals

5.3.3. Component & Audio Terminals

SA-XR700EG

5.3.4. Other Connections

SA-XR700EG

5.3.5. For Speakers

SA-XR700EG

5.3.6. For FM/AM antennas

SA-XR700EG

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. 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 ----H H H High Temp Refer to ´THERMAL PROTECTION´ 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

6.4. 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 .

6.5. 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.

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

SA-XR700EG

Fig. 6.2

3. When the [SPEAKER A] button is pressed, the current program filing numbe r [M042 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 [S026 0000] appears. The **** digit indicates the ROM checksum used for ROM collection, and if the unit is not loaded with ROM, "NO" appears.

To confirm the HDMI µP software version : When [SURROUND] button is pressed, [H005] is displayed.

6.6. Returning to Normal Display

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

6.7. 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 “93.4MHz” 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-XR700EG

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, All Led are displayed -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/STB STEREO Analog -18dB/0dB

TV/AV BD/DVD STEREO Analog -18dB/0dB

LEVEL DVR STEREO Analog -18dB/0dB

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

OFF TV/STB STEREO Digital (OPT 1) -48dB/0dB SFC MOVIE BD/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/R T) is changed.

-18dB/0dB

SA-XR700EG

Fig. 6.4

7 HDMI Checking Method

1. Connection of HDMI system

SA-XR700EG

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-XR700EG

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

technology and is fully backward compatible with PCs and display s 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-XR700EG

7.3. Advanced Digital Sound

7.4. Easy to Use

SA-XR700EG

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.

· 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-XR700EG

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.

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., Headphone P.C.B., Selector P.C.B. and Front Jack P.C.B..

· Insert wire & Wire dressing

+ 115 hidden pages