Panasonic SA-HT340GC User manual

lGeneral
Power Source:
A
C 110V-240V, 50/ 60Hz
Power consumption: 90 W
Dimensions (W×H×D): 430×60×342 mm
Mass: 3kg
lAmplifier section
RMS Output Power: Dolby Digital Mode
lTotal RMS Dolby Digital
mode Power: 330 W
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:
150 W
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%
©2006 Panasonic AVC Networks Singapore Pte.
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT340GC
SA-HT340GCS
SA-HT340GS
Colour
(S).......................Silver Type
lSubwoofer: 25 W/ Channel (5Ω)
lFM tuner section (FM)
Preset Memory: FM 15 stations
AM/MW 15 stations
Frequency Range: 87.5-108.00MHz
(50kHz step)
Sensitivity: 1.8µV (IHF)
S/N 26dB 1.4µV
Antenna Terminals: 75Ω(unbalanced)
lAM tuner section (AM/MW)
Frequency Range: 522-1629kHz (9kHz step)
520-1630kHz (10kHz step)
AM Sensitivity S/N 20dB at
999kHz: 560µV/m
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]
DVD Home Theater Sound System
Specifications
ORDER NO.MD0605178C3

(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
V
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:
Y
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]
Y
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,
PR: 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.
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SA-HT340GC / SA-HT340GCS / SA-HT340GS

1 Safety Precautions 6
1.1. GENERAL GUIDELINES 6
1.2. Before Repair and Adjustment (Using SMPS) 6
1.3. Protection Circuitry 6
1.4. Caution for AC Cord (For GS only) 7
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 8
3 Precaution of Laser Diode 9
4 About Lead Free Solder (PbF) 10
4.1. Service caution based on legal restrictions 10
5 Handling Precautions for Traverse Unit 11
5.1. Cautions to Be Taken in Handling the Optical Pickup Unit
11
5.2. Grounding for electrostatic breakdown prevention 11
6 Accessories 13
7 Operation Procedures 14
7.1. Remote Control Keys Operation 14
7.2. Main Unit Keys Operation 15
7.3. Disc information 16
7.4. About DivX VOD Content 18
8 Self-Diagnosis and special mode setting 19
8.1. Service Mode Summary Table 19
8.2. Service Mode Table 19
8.3. DVD Self Diagnostic Function-Error Code 24
8.4. Sales Demonstration Lock Function 26
8.5. Service Precautions 27
9 Assembling and Disassembling 28
9.1. Disassembly Flow Chart 29
9.2. Main Components and P.C.B. Locations 29
9.3. Disassembly of Top Cabinet 30
9.4. Disassembly of the DVD Lid (When taking out disc
manually) 30
9.5. Disassembly of Front Panel Assembly 31
9.6. Disassembly of FL P.C.B., Mic P.C.B. & Volume P.C.B.
31
9.7. Disassembly of DVD Mechanism Unit 32
9.8. Disassembly of DVD Module P.C.B. 32
9.9. Disassembly of Rear panel 33
9.10. Disassembly of SMPS Module P.C.B. 33
9.11. Disassembly of Main P.C.B. & Tuner Extent P.C.B. 33
9.12. Disassembly of Digital Amp IC (IC5100/IC5200/IC5300)
34
10 Service Position 35
10.1. Servicing position of the DVD Module P.C.B. 35
10.2. Servicing position of the Main P.C.B. 35
10.3. Servicing position of the SMPS Module P.C.B. 35
11 Assembly and disassembly of Mechanism Unit 36
11.1. Disassembly Procedure 36
12 Measurements and Adjustments 42
12.1. Service Tools and Equipment 42
12.2. Important points in adjustment 42
12.3. Storing and handling of test discs 42
12.4. Optical adjustment 43
13 Abbreviations 44
14 Voltage and Waveform Chart 46
14.1. DVD Module P.C.B. 46
14.2. Main P.C.B. 47
14.3. FL P.C.B., Mic P.C.B. & Tray Loading P.C.B. 48
14.4. SMPS Module P.C.B. 48
14.5. Waveform Chart 49
15 Illustration of IC's, Transistors and Diodes 51
16 Wiring Connection Diagram 52
17 Block Diagram 54
18 Schematic Notes 60
19 Schematic Diagram 62
19.1. (A) DVD Module (DV3.2) Circuit 62
19.2. (B) Main, FL, Volume & Mic Circuit 66
19.3. (C) Tray Loading & Tuner Extent Circuit 72
20 Printed Circuit Board 74
20.1. (A) DVD Module P.C.B. 74
20.2. (B) Main P.C.B. 75
20.3. (C) FL, Volume, Mic, Tray Loading & Tuner Extent P.C.B.
76
21 Basic Troubleshooting Guide 78
21.1. Basic Troubleshooting Guide for Traverse Unit (DVD
Module P.C.B.) 78
21.2. Troubleshooting Guide for Power section (Power circuit)
78
22 Overall Block (HT340) 79
22.1. HT340 DVD Unit Block 80
22.2. HT340 Block (Analog Signal : DVD 5.1ch Play Back
Mode) 81
22.3. HT340 Block (Analog Signal : 2ch Analog Input Mode) 82
22.4. HT340 Power Supply Block 83
22.5. HT340 Power (Main) Block 84
23 Terminal Function of ICs 85
23.1. IC2018 (C2CBYY000194): System Control
Microprocessor IC 85
24 Exploded Views 86
24.1. Cabinet Parts Location 86
24.2. Packaging 88
25 Replacement Parts List 89
25.1. Component Parts List 90
CONTENTS
Page Page
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SA-HT340GC / SA-HT340GCS / 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 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 5.2MΩ.
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 speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
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SA-HT340GC / SA-HT340GCS / 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)
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SA-HT340GC / SA-HT340GCS / 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 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, 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 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).
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SA-HT340GC / SA-HT340GCS / SA-HT340GS

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.
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SA-HT340GC / SA-HT340GCS / 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%
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SA-HT340GC / SA-HT340GCS / SA-HT340GS