Panasonic SA-XR55E Bedienungsanleitung

nAMPLIFIER SECTION

Power output (at AC 230-240 V)

DIN 1 kHz (T.H.D. 1 %) 2 x 100 W (6 Ω)

20 Hz-20 kHz continuous power

output both channels driven

2x80W(6Ω)

Total harmonic distortion

rated power at 20 Hz-20 kHz 0.09 % (6 Ω)

Power bandwidth

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

(6 Ω,0.9%)

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

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 6-16 Ω

A and B 6-16 Ω

BI-WIRE 6-16 Ω

Center 6-16 Ω

Surround (L/R) 6-16 Ω

Surround Back (L/R) 6-16 Ω

Frequency response

CD, TAPE, TV, DVD, DVD RECORDER,

VCR1, VCR2

4 Hz-88 kHz, ±3 dB

DVD 6CH 4 Hz-44 kHz, ±3 dB

Input sensitivity and impedance

CD, TAPE, TV, DVD/DVD 6CH, DVD

RECORDER, VCR1, VCR2

200 mV/22 kΩ

rights reserved. Unauthorized copying and

distribution is a violation of law.

SA-XR55E

SA-XR55EB

SA-XR55EG

Colour

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

(K)...............Black Type (E/EG only)

S/N at rated power (6 Ω

ΩΩ

Ω)

CD, TV, DVD, DVD RECORDER

(Digital Input)

90 dB

(IHF, A: 103 dB)

Tone controls

BASS 50 Hz, +10 to -10 dB

TREBLE 20kHz,+10to-10dB

Output voltage

TAPE, DVD RECORDER 200 mV

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

Channel separation 55 dB

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

nFM TUNER SECTION

Frequency range 87.50-108.00 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

Total harmonic distortion

MONO 0.2%

STEREO 0.3%

S/N

MONO 60 dB

STEREO 58 dB

Frequency response

AV Control Receiver

Specification

ORDER NO. MD0505214C2

20 Hz-15 kHz +1 dB, -2 dB

Alternate channel selectivity

±400 kHz 65 dB

Capture ratio 1.5 dB

Image rejection at 98 MHz 40 dB

IF rejection at 98 MHz 70 dB

Spurious response rejection at 98 MHz 70 dB

AM suppression 50 dB

Stereo separation

1 kHz 40 dB

Carrier leak

19 kHz -30 dB

38 kHz -50 dB

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

Limiting point 1.2 µV

Bandwidth

IF amplifier 180 kHz

FM demodulator 1000 kHz

Antenna terminal 75 Ω(unbalanced)

nAM TUNER SECTION

Frequency range 522-1611 kHz

(9 kHz step)

530-1620 kHz

(10 kHz step)

Sensitivity 20 µV, 330 µV/m

Selectivity (at 999 kHz) 55 dB

IF rejection (at 999 kHz) 50 dB

1 SAFETY PRECAUTIONS 4

1.1. GENERAL GUIDELINES 4

2 Caution for AC Mains Lead 5

3 Before Repair and Adjustment 6

4 Protection Circuitry 6

5 Handling the Lead-free Solder 6

5.1. About lead free solder (PbF) 6

6 Accessories 7

7 Operating Instructions 8

7.1. Main Unit 8

7.2. Remote Control 9

7.3. Home Theater Connections 10

7.4. Other Connections 15

8 Disassembly and Main Component Replacement Procedures

and Operational Check 18

8.1. Disassembly flow chart 18

nVIDEO 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, DVD, DVD

RECORDER

Output TV MONITOR

Component Video

Input TV, DVD, DVD

RECORDER

Output TV MONITOR

nGENERAL

Power supply AC 230-240 V, 50 Hz

Power consumption 135 W

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

394 mm

Mass 4.6 kg

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.

8.2. P.C.B. Positions 19

8.3. Disassembly of Top Cabinet. 19

8.4. Checking for the DSP P.C.B. (Side A/B) and Main P.C.B.

(Side A). 20

8.5. Disassembly and Checking of Main P.C.B. (Side B) 21

8.6. Disassembly of Tuner Pack and Tuner Extent P.C.B. 21

8.7. Disassembly and Checking of Speaker P.C.B. 22

8.8. Disassembly and Checking of Component Video P.C.B.

8.9. Disassembly and Checking of Video & Optical P.C.B. 23

8.10. Disassembly of Rear Panel 23

8.11. Disassembly and Checking of Input P.C.B. 24

8.12. Disassembly of Front Panel 25

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

P.C.B. and Headphone P.C.B. 26

8.14. Disassembly and Checking of Power P.C.B. 27

9 Self Diagnosis Display Function 28

CONTENTS

Page Page

SA-XR55E / SA-XR55EB / SA-XR55EG

9.1. Automatically Displayed Error Codes 28

9.2. Display Details 28

9.3. Returning to Normal Display 28

9.4. Overload/Shutdown Detection intenal Condition 28

9.5. Overload/Thermal Detection Display 28

9.6. Activating Self Diagnosis Function (Servicing Mode) 28

9.7. Analog 6.1 CH Output Check Method 29

9.8. Returning to Normal Display 29

9.9. Activating Self Diagnosis Function (Doctor Mode) 29

10 Voltage Measurement and Waveform Chart 31

10.1. Voltage Measurement 31

10.2. Waveform Chart 38

11 Block Diagram 40

12 Notes of Schematic Diagram 52

13 Schematic Diagram 53

13.1. DSP Circuit 53

13.2. Main Circuit 58

13.3. Input Circuit &Tuner Extent Circuit 76

13.4. Panel Circuit 81

13.5. Speaker Circuit, Headphone Circuit & Volume Circuit 83

13.6. Power Circuit 84

13.7. Video & Optical Circuit 88

13.8. Component Video Circuit 91

14 Printed Circuit Board 92

14.1. DSP P.C.B. (Side A & B) 92

14.2. Main P.C.B. (Side A & B) 94

14.3. Input P.C.B. 98

14.4. Tuner Extent P.C.B., Panel P.C.B. & Headphone P.C.B.

100

14.5. Volume P.C.B. & Speaker P.C.B. 102

14.6. Power P.C.B. 103

14.7. Video & Optical P.C.B. & Component Video P.C.B. 104

15 Wiring Connection Diagram 106

16 Type Illustration of ICｴs, Transistors and Diodes 108

17 Terminal Function of ICs 109

17.1. IC6801 (C2BBGF000669): Microprocessor 109

18 Parts Location and Replacement Parts List 110

18.1. Cabinet Parts Location 111

18.2. Electrical Parts List 114

18.3. Packing Materials & Accessories Parts List 130

18.4. Packaging 130

SA-XR55E / SA-XR55EB / SA-XR55EG

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, make 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 connect 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 1MΩand 5.2Ω.

When the exposed metal does not have a return path to the chassis, the reading must be .

Fig. 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.

SA-XR55E / SA-XR55EB / SA-XR55EG

2 Caution for AC Mains Lead

SA-XR55E / SA-XR55EB / SA-XR55EG

3 Before Repair and Adjustment

Disconnect AC power, discharge Power Supply Capacitors C707, C717, C718 and C924 through a 10 Ω, 10 W 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 should be ~400 mA.

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 impedance 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.

5 Handling the Lead-free Solder

5.1. 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).

When 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.

SA-XR55E / SA-XR55EB / SA-XR55EG

6 Accessories

Note : Refer to Packaging Materials & Accessories Part List (Section 18.3) for part number.

Remote control

AC cord (For EB

only)

AC cord (For E/EG

only)

FM indoor

antenna

AM loop antenna

Antenna

plug

adaptor

(For EB

only)

SA-XR55E / SA-XR55EB / SA-XR55EG

7.1. Main Unit

7 Operating Instructions

SA-XR55E / SA-XR55EB / SA-XR55EG

7.2. Remote Control

SA-XR55E / SA-XR55EB / SA-XR55EG

7.3. Home Theater Connections

7.3.1. TV and DVD Player

SA-XR55E / SA-XR55EB / SA-XR55EG

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