Panasonic SC-HT870 Manual de usuario

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Service Manual

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ORDER NO.MD0403138C2

DVD Home Theater Sound System

●SA-HT870E

SA-HT870EB

SA-HT870EG

Colour

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

Specifications

• General

Power Source:

For (E, EG) areas: AC 230 V, 50 Hz

For (EB) area: AC 230-240 V, 50 Hz

Power consumption: 25 W

Dimensions (W× H× D): 430× 68× 359.2 mm

Mass: 3.2 kg

• Amplifier section

RMS Output Power: Dolby Digital Mode

• Total RMS Dolby Digital

mode Power:

1000 W

At 1kHz and total harmonic of 10%

• Front: 170 W/ Channel (6Ω)

• Center: 260 W/ Channel (4Ω)

• Surround: 70 W/ Channel (4Ω)

At 100Hz and total harmonic of 10%

• Active subwoofers: 260 W/ Channel (4Ω)

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DIN Output Power: Dolby Digital Mode:

• Total DIN Dolby Digital mode Power:

750 W

At 1kHz and total harmonic of 1%

• Front: 140 W/ Channel (6Ω)

• Center: 180 W/ Channel (4Ω)

• Surround: 55 W/ Channel (4Ω)

At 100Hz and total harmonic of 1%

• Subwoofer: 180 W/ Channel (4Ω)

• FM tuner section

Frequency Range: 87.5-108.0MHz

(50kHz in step)

Sensitivity: 2μV (IHF)

S/ N 26dB 2μV

Antenna Terminal: 75Ω(non balance)

• AM tuner section (AM/ MW)

Frequency Range: 522-1629kHz (9kHz in step)

520-1630kHz (10kHz in step)

AM Sensitivity S/ N 20dB at 999kHz:

560μV/ m

Phone Jack:

Terminal: Stereo 3.5mm jack

• Disc section

Discs played [8 cm or 12 cm]:

(1) DVD-RAM (DVD-VR compatible, JPEG formatted discs)

(2) DVD-Audio

(3) DVD-Video

(4) DVD-R (DVD-Video compatible)

(5) CD-Audio (CD-DA)

(6) Video CD

(7) SVCD (Conforming to IEC62107)

(8) CD-R/ CD-RW (CD-DA, Video-CD, SVCD, MP3, WMA, JPEG formatted discs)

(9) MP3/ WMA

• Maximum number of recognizable audio and picture contents and groups:

4000 audio and picture contents and 400 groups

• Compatible compression rate:

MP3: between 32 kbps and 320 kbps

WMA: between 48 kbps and 320 kbps

(10) JPEG

• Exif Ver 2.1 JPEG Baseline files

• Picture resolution: between 320 x 240 and 6144 x 4096 pixels (sub sampling is 4:2:2 or 4:2:0)

(11) HighMAT Level 2 (Audio and lmage)

Pick up:

Source of light beam: Semiconductor Laser

Wavelength:

• CD: 785nm

• DVD: 662nm

Audio output (DISC):

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

Audio performance (measured at LINE OUT terminal):

Frequency response:

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

4 Hz-44 kHz (96 kHz sampling)

DVD-Audio: 4 Hz-88 kHz (192 kHz sampling)

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CD-Audio: 4 Hz-20 kHz

S/ N ratio:

CD-Audio: 95 dB

Dynamic range:

DVD (linear audio): 95 dB

CD-Audio: 93 dB

Total harmonic distortion:

CD-Audio: 0.005%

• Video section

Video system:

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

Composite video output:

Output level: 1 Vp-p (75Ω)

Terminal: Pin jack (1 system)

S-video output:

Y output level: 1 Vp-p (75Ω)

C output level: PAL; 0.3Vp-p (75Ω)

NTSC; 0.286 Vp-p (75Ω)

Terminal S terminal (1 system)

Component video output (480P/ 480I):

Y output level: 1 Vp-p (75Ω)

P B output level: 0.7 Vp-p (75Ω)

P R output level: 0.7 Vp-p (75Ω)

Terminal: Pin jack (Y: green, P B : blue, P R : red) (1 system)

Power consumption in standby mode:

approx 0.7W

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).

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1 Use of Active Subwoofer

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1.1 Checking Player when Active Subwoofer is not used

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1.1 Checking Player when Active Subwoofer is not used

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1. This unit uses the active subwoofer to supply the power of the component, and the active subwoofer should be connected to the component to check operational conditions of the

component.

2. If the active subwoofer is not available due to repair of the unit, use the following equipment.

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Jig product number: RFKZ0182 (110V, 127V, 220V, 230V-240V for overseas domestic use)

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2 Safety Precautions

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2.1 GENERAL GUIDELINES

2.1.1 LEAKAGE CURRENT COLD CHECK

2.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1 .)

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2.1 GENERAL GUIDELINES

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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.

2.1.1 LEAKAGE CURRENT COLD CHECK

2.1.2 LEAKAGE CURRENT HOT CHECK (See Figure 1 .)

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2.1.1 LEAKAGE CURRENT COLD CHECK

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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 thechassis,the reading should be between

1MΩand 5.2MΩ.

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

Figure 1

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