Panasonic SA-HT995EE User manual

lGeneral
Power Source:
A
C 230V, 50Hz
Power consumption: 120 W
Dimensions (W×H×D): 430×60×354 mm
Mass: 3.35kg
lAmplifier section
RMS Output Power: Dolby Digital Mode
lTotal RMS Dolby Digital
mode Power: 1000 W
At 1kHz and total harmonic of 10%
lFront: 125 W/ Channel (3Ω)
lCenter: 250 W/ Channel (6Ω)
lSurround: 65 W/ Channel (4Ω)
At 100Hz and total harmonic of 10%
lSubwoofer: 250 W/ Channel (6Ω)
DIN Output Power: Dolby Digital Mode:
lTotal DIN Dolby Digital mode Power:
470 W
At 1kHz and total harmonic of 1%
lFront: 80 W/ Channel (3Ω)
lCenter: 75 W/ Channel (6Ω)
©2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT995EE
Colour
(S).......................Silver Type
lSurround: 80 W/ Channel (3Ω)
At 100Hz and total harmonic of 1%
lSubwoofer: 75 W/ Channel (6Ω)
lPreset Memory: FM 15 stations
AM/MW 15 stations
lFrequency Modulation (FM)
Frequency Range: 87.50-108.00MHz
(50kHz step)
Sensitivity: 2.5µV (IHF)
S/N 26dB 2.2µV
Antenna Terminals: 75Ω(unbalanced)
lAmplitude Modulation (AM/MW)
Frequency Range: 522-1629kHz (9kHz step)
AM Sensitivity S/N 20dB at
999kHz: 560µV/m
lDigital audio input:
Optical digital input: Optical terminal (1 system)
Sampling frequency: 32kHz, 44.1kHz, 48kHz
lPhone Jack:
Terminal: Stereo 3.5 mm jack
lMic Jack:
DVD Home Theater Sound System
Specifications
ORDER NO.MD0607242CE

Sensitivity: 0.7mV (1.2kΩ)
Terminal: Mono 6.3 mm jack (1 system)
lFront M. Port:
Sensitivity: 100mV (15kΩ)
Terminal: Stereo 3.5 mm jack
lDisc section
Discs played (8 cm or 12 cm):
(1) DVD [DVD-Video, DVD-Audio, DivX(*1,2)]
(2) DVD-RAM [DVD-VR, MP3(*2,6), JPEG(*2,3), MPEG4(*2,4),
DivX(*1,2)]
(3) DVD-R [DVD-Video, DVD-VR, MP3(*2,6), JPEG(*2,3),
MPEG4(*2,4), DivX(*1,2)]
(4) DVD-R DL [DVD-Video, DVD-VR]
(5) DVD-RW [DVD-Video, DVD-VR, MP3(*2,6), JPEG(*2,3),
MPEG4(*2,4), DivX(*1,2)]
(6) +R/+RW [Video]
(7) +R DL [Video]
(8) CD, CD-R/RW [CD-DA, Video CD, SVCD(*5), MP3(*2,6),
WMA(*2,7), JPEG(*2,3), MPEG4(*2,4), DivX (*1,2), HighMAT
Level 2 (Audio and Image)]
*1 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.
*2 The total combined maximum number of recognizable audio,
picture and video contents and groups: 4000 audio, picture
and video contents and 400 groups.
*3 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 or 4:4:4).
Extremely long and narrow pictures may not be displayed.
*4 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.
*5 Conforming to IEC62107
*6 MPEG-1 Layer 3, MPEG-2 Layer 3
*7 Windows Media Audio Ver.9.0 L3
lNot compatible with Multiple Bit Rate (MBR)
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)
DVD-Audio: 4 Hz-88 kHz (192 kHz
sampling)
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 %
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)
Scart 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)
Scart jack (1 system)
Component video output (NTSC: 480p/480i, PAL: 576p/576i):
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)
RGB video output:
R output level: 0.7 Vp-p (75 Ω)
G output level: 0.7 Vp-p (75 Ω)
B output level: 0.7 Vp-p (75 Ω)
Terminal: Scart jack (1 system)
HDMI AV output: 19 pin type A connector, HDMI
Ver.1.2a (EDID Ver.1.3)
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 DL2SU (Single tray) mechanism.
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SA-HT995EE

Refer to the original service manual for *1, *2, *3, *4.
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SA-HT995EE

1 Safety Precautions 6
1.1. GENERAL GUIDELINES 6
1.2. Before Repair and Adjustment 6
1.3. Protection Circuitry 6
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 7
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-HT995) 14
7.3. Use of HDAVI Control 15
7.4. Using of Music Port 16
7.5. Disc Information 17
7.6. About DivX VOD Content 19
7.7. Audio & Video Connections 20
8 New Features 21
8.1. About HDMI 21
9 Self-Diagnosis and special mode setting 23
9.1. Service Mode Summary Table 23
9.2. Service Mode Table 23
9.3. DVD Self Diagnostic Function-Error Code 28
9.4. Sales Demonstration Lock Function 30
9.5. Service Precautions 31
10 Assembling and Disassembling 32
10.1. Disassembly Flow Chart 33
10.2. Main Components and P.C.B. Locations 34
10.3. Disassembly of Top Cabinet 35
10.4. Disassembly of the DVD Lid (When taking out disc
manually) 35
10.5. Disassembly of Front Panel Assembly 36
10.6. Disassembly of Music Port P.C.B, Mic P.C.B., FL P.C.B.
& Top Button P.C.B. 36
10.7. Disassembly of Scart P.C.B. 37
10.8. Disassembly of Karaoke P.C.B. 37
10.9. Disassembly of DVD Mechanism Unit 37
10.10. Disassembly of Relay P.C.B. 38
10.11. Disassembly of Rear panel 38
10.12. Disassembly of HDMI Module P.C.B. 38
10.13. Disassembly of Main P.C.B., AC-Inlet P.C.B. & Tuner
Extent P.C.B. 38
10.14. Disassembly of Digital Amp IC (IC5000) 39
10.15. Disassembly of Digital Amp IC (IC5400) 39
10.16. Disassembly of Regulator Diodes & Transistor 40
10.17. Disassembly of Switch Regulator IC & Diode
(IC5701/D5702) 40
11 Service Position 42
11.1. Servicing position of the HDMI Module P.C.B. 42
11.2. Servicing position of the Main P.C.B. 42
12 Assembly and disassembly of Mechanism Unit 43
12.1. Disassembly Procedure 43
13 Measurements and Adjustments 49
13.1. Service Tools and Equipment 49
13.2. Important points in adjustment 49
13.3. Storing and handling of test discs 49
13.4. Optical adjustment 50
14 Abbreviations 51
15 Voltage and Waveform Chart 53
15.1. HDMI Module P.C.B. 53
15.2. Main/Power P.C.B. 55
15.3. FL P.C.B., Scart P.C.B., Mic P.C.B. & Tray Loading P.C.B.
57
15.4. Waveform Chart 58
16 Illustration of IC's, Transistors and Diodes 60
17 Wiring Connection Diagram 61
18 Block Diagram 63
19 Schematic Diagram Notes 71
20 Schematic Diagram 73
20.1. (A) Optical Pickup Unit & HDMI Circuit 73
20.2. (B) Main Circuit 80
20.3. (C) Power & AC-Inlet Circuit 85
20.4. (D) FL, Top Button, Tuner Extent, Music Port, Tray
Loading, Mic, Relay, Scart & Karaoke Circuit 89
21 Printed Circuit Board 93
21.1. (A) HDMI Module P.C.B. 93
21.2. (B) Main/Power P.C.B. 94
CONTENTS
Page Page
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21.3. (C) Tuner Extent, AC-Inlet, FL, Music Port, Tray Loading &
Top button P.C.B. 95
21.4. (D) Mic, Relay, Scart & Karaoke P.C.B. 96
22 Basic Troubleshooting Guide 97
22.1. Basic Troubleshooting Guide for Traverse Unit (HDMI
Module P.C.B) 97
22.2. Basic Troubleshooting Guide for HDMI AV output 98
23 Overall Block (HT995) 99
23.1. HT995 DVD Unit Block 100
23.2. HT995 Block (Analog Signal : DVD 5.1ch Play Back
Mode) 101
23.3. HT995 Block (Analog Signal : 2ch Analog Input Mode)
102
23.4. HT995 Power Supply Block 103
23.5. HT995 Power Block (SMPS) 104
24 Terminal Function of ICs 105
24.1. IC2018 (C2CBYY000294): IC System Control 105
25 Exploded Views 106
25.1. Cabinet Parts Location 106
25.2. Packaging 108
26 Replacement Parts List 109
26.1. Component Parts List 110
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SA-HT995EE

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 C5701, C5706, C5714, C5736 & C5737 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 V, 50 Hz in NO SIGNAL mode (at volume minimum) should be ~ 900 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-HT995EE

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-HT995EE

3 Precaution of Laser Diode
CAUTION :
This product utilizers a Class 1 / Class 1M laser. Invisible laser radiation is emitted from the optical pick up lens.
When the unit is turned on:
Wavelength : 662nm/785nm
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-HT995EE

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-HT995EE

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-HT995EE