Panasonic SA-HT441WP User manual

lGeneral
Power Source:
A
C 120V, 60Hz
Power consumption: 125 W
Dimensions (W×H×D): 430×70×439.2 mm
(16-15/16”×2-3/4”×17-19/64”)
Mass: 4.7 kg (10.36Ibs)
lAmplifier section
RMS Output Power: Dolby Digital Mode
lTotal RMS Dolby Digital
mode Power: 850 W
At 1kHz and total harmonic of 10%
lFront: 110 W/ Channel (3Ω)
lCenter: 225 W/ Channel (6Ω)
lSurround: 90 W/ Channel (4Ω)
At 100Hz and total harmonic of 10%
lSubwoofer: 225 W/ Channel (6Ω)
FTC Output Power: Dolby Digital Mode
lTotal FTC Dolby Digital mode Power:
360 W
At 120Hz-20kHz and total harmonic of 1%
lFront: 40 W/ Channel (3Ω)
lCenter: 75 W/ Channel (6Ω)
lSurround: 70 W/ Channel (4Ω)
©2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT441WP
Colour
(S).......................Silver Type
At 45Hz-120Hz and total harmonic of 1%
lSubwoofer: 65 W/ Channel (6Ω)
lPreset Memory: FM 15 stations
AM/MW 15 stations
lFrequency Modulation (FM)
Frequency Range: 87.9-107.9MHz
(200kHz step)
87.5-108.0MHz
(100kHz step)
Sensitivity: 2.5µV (IHF)
S/N 26dB 2.2µV
Antenna Terminals: 75Ω(unbalanced)
lAmplitude Modulation (AM/MW)
Frequency Range: 520-1710kHz (10kHz step)
AM Sensitivity S/N 20dB at
1000kHz: 560µV/m
lPhone Jack:
Terminal: Stereo 3.5 mm (1/8”) jack
lMusic Port (Front):
Sensitivity: 100mV (4.7kΩ)
Terminal: Stereo 3.5 mm (1/8”) jack
lDisc section
Discs played [8 cm (3”) or 12 cm (5”)]:
DVD Home Theater Sound System
Specifications
ORDER NO.MD0607235CE
A6

(1) DVD [DVD-Video, DVD-Audio]
(2) DVD-RAM [DVD-VR, JPEG(*4,5)]
(3) DVD-R [DVD-Video]
(4) DVD-RW [DVD-Video]
(5) +R/+RW [Video]
(6) CD, CD-R/RW [CD-DA, Video CD, SVCD(*1), MP3(*2,5),
WMA(*3,5), JPEG(*4,5), 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 Class 2A
.lNot compatible with Multiple Bit Rate (MBR)
*4 Exif Ver 2.1 JPEG Baseline files
lPicture resolution: between 320 x 240 and 6144 x 4096
pixels (Sub sampling is 4:2:2 or 4:2:0). Extremely long and
narrow pictures may not be displayed.
*5 The total combined maximum number of recognizable audio
and picture contents and groups: 4000 audio and picture
contents and 400 groups.
Pick up:
Wavelength:
lCD: 785nm
lDVD: 662nm
Laser power:
lCD: CLASS I
lDVD: CLASS II
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)
DVD-Audio: 4 Hz-88 kHz (192 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: 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: NTSC; 0.286 Vp-p (75 Ω)
Terminal S terminal (1 system)
Component video output (480p/480i):
Y
output level: 1 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 0.5W
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 RC1 (Rotary tray) mechanism.
Refer to original service manual for *1, *2, *3, *4, *5, *6 .
This model is equipped with features of wireless surround
(SH-HT441W) & XM satellite radio.
2
SA-HT441WP

1 Safety Precautions 5
1.1. GENERAL GUIDELINES 5
1.2. Before Repair and Adjustment 5
1.3. Protection Circuitry 6
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
3 Precaution of Laser Diode 8
4 About Lead Free Solder (PbF) 9
4.1. Service caution based on legal restrictions 9
5 Handling Precautions for Traverse Unit 10
5.1. Cautions to Be Taken in Handling the Optical Pickup Unit
10
5.2. Grounding for electrostatic breakdown prevention 10
6 Accessories 12
7 Operation Procedures 13
7.1. Remote Control Key Buttons Operations 13
7.2. Main Unit Key Buttons Operations (SA-HT441W) 14
7.3. Using of Music Port 15
7.4. Wireless Surround Connections/Operations 16
7.5. XM Satellite Radio 17
7.6. Disc information 18
8 New Features 20
8.1. Using of Wireless Surround Sound 20
8.2. Using the XMｮSatellite Radio 22
9 Self-Diagnosis and special mode setting 24
9.1. Service Mode Summary Table 24
9.2. Service Mode Table 24
9.3. DVD Self Diagnostic Function-Error Code 29
9.4. Sales Demonstration Lock Function 31
9.5. Service Precautions 32
10 Assembling and Disassembling 33
10.1. Disassembly Flow Chart 34
10.2. Main Components and P.C.B. Locations 35
10.3. Disassembly of the Top Cabinet 36
10.4. Disassembly of the Front Panel 36
10.5. Disassembly of the Tray Assembly 36
10.6. Disassembly of the Rear Panel 37
10.7. Disassembly of the Mechanism Base 37
CONTENTS
Page Page
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SA-HT441WP

10.8. Disassembly of the FL & Head Phone P.C.B. 37
10.9. Disassembly of the XM Module P.C.B. 38
10.10. Disassembly of the Main P.C.B. 38
10.11. Disassembly of the AC-Inlet, Power & Sub Power P.C.B 38
10.12. Disassembly of Digital Amp IC (IC5000) 39
10.13. Disassembly of the Digital Amp IC (IC5400) 39
10.14. Disassembly of Regulator Diodes & Transistor 40
10.15. Disassembly of Switch Regulator IC & Diode
(IC5701/D5702) 40
10.16. Disassembly of the Tray Base Guide (L) and Tray Base
Guide (R) 41
10.17. Disassembly of the Rotary Tray 41
10.18. Disassembly of the Traverse Unit 42
10.19. Assembly of Tray Assembly 45
11 Service Fixture and Tools 46
12 Service Positions 46
12.1. Checking & Repair Main P.C.B., Power P.C.B., FL and
Head phone P.C.B. 46
12.2. Checking & Repair DVD Module P.C.B 46
12.3. Checking & Repair XM Module P.C.B 47
13 Measurements and Adjustments 48
13.1. Service Tools and Equipment 48
13.2. Important points in adjustment 48
13.3. Storing and handling of test discs 48
13.4. Optical adjustment 49
14 Abbreviations 50
15 Voltage and Waveform Chart 52
15.1. DVD Module P.C.B. 52
15.2. Main P.C.B. 53
15.3. Power P.C.B. 54
15.4. FL P.C.B. 54
15.5. Loading P.C.B., Tray Motor P.C.B., Sensor P.C.B. 55
15.6. XM Module P.C.B. 55
15.7. Waveform Chart 56
16 Illustration of IC's, Transistors and Diodes 57
17 Wiring Connection Diagram 59
18 Block Diagram 61
19 Schematic Diagram Notes 69
20 Schematic Diagram 71
20.1. (A) Optical Pickup Unit & DVD Module Circuit 71
20.2. (B) Main Circuit 76
20.3. (C) Power, AC-inlet & Sub Panel Circuit 80
20.4. (D) FL, Headphone Circuit 85
20.5. (E) Loading Motor, Tray Motor, Sensor & XM Module
Circuit 86
21 Printed Circuit Board 89
21.1. (A) DVD Module P.C.B. 89
21.2. (B) Main, AC-Inlet, Sub-power P.C.B. 90
21.3. (C) Power P.C.B. 91
21.4. (D) FL, Headphone, Loading motor, Tray motor, Sensor &
XM Module P.C.B. 92
22 Basic Troubleshooting Guide 93
22.1. Basic Troubleshooting Guide for DVD Module 93
22.2. Basic Troubleshooting Guide for Traverse Unit 95
23 Overall Block for HT441W 96
23.1. HT441W DVD Unit Block 97
23.2. HT441W Block (Analog Signal : DVD 5.1ch Play Back
Mode) 98
23.3. HT441W Block (Analog Signal : 2ch Analog Input Mode)
99
23.4. HT441W Power Supply Block 100
23.5. HT441W Power Block (SMPS) 101
24 Terminal Function of ICs 102
24.1. IC2001 (MNBCP49KAF1): Micro-processor IC 102
25 Explode Views 103
25.1. Cabinet Parts Location 103
25.2. Packaging 106
26 Replacement Parts List 107
26.1. Component Parts List 108
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SA-HT441WP

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
Disconnect AC power, discharge Power Supply Capacitors C4891, C5701, C5706, C5714, C5736, C5737 through a 10 Ω,10W
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 120 V, 60 Hz in NO SIGNAL mode (at volume minimal) should be ~ 900 mA.
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SA-HT441WP

1.2.1. Caution for fuse replacement
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.
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.
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-HT441WP

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SA-HT441WP

3 Precaution of Laser Diode
CAUTION:
This unit utilizes a class 1 laser.
Invisible laser radiation is emitted from the optical pickup lens.
Wavelength: 662nm(DVD)/785nm(CD).
Maximum output radiation power from pickup: 100µW/VDE
When the unit is turned on:
1. Do not look directly into the pick up lens.
2. Do not use optical instruments to look at the pick up lens.
3. Do not adjust the preset variable resistor on the pickup lens.
4. Do not disassemble the optical pick up unit.
5. If the optical pick up is replaced, use the manufacturer’s specified replacement pick up only.
6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous
radiation exposure.
8
SA-HT441WP

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-HT441WP

5 Handling Precautions for Traverse Unit
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode.
5.1. Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed should
be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexible
cable, cut off the antistatic FPC.
5.2. Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static
electricity in the working environment. Proceed servicing works under the working environment where grounding works is
completed.
5.2.1. Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
5.2.2. Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
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SA-HT441WP