Panasonic-SAHT56P-htss-sm 电路图 维修手册.pdf

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1、IAMPLIFIER SECTION RMS output power of each channel driven 10% total harmonic distortion 1 kHz front CH 125 W per channel (3 ) 1 kHz surround CH 125 W per channel (3 ) 1 kHz center CH 250 W per channel (6 ) 100 Hz subwoofer CH 250 W per channel (6 ) Total RMS output power1000 W Rated minimum sine wa

2、ve RMS power output 1% total harmonic distortion (Dolby Digital mode) 120 Hz to 20 kHz Front CH 53 W per channel (3 ) 120 Hz to 20 kHz Surround CH 53 W per channel (3 ) 120 Hz to 20 kHz Center CH 133 W per channel (6 ) 45 Hz to 120 Hz Subwoofer CH 141 W per channel (6 ) Total FTC Output Power486 W R

3、ated minimum sine wave RMS power output 1% total harmonic distortion (Stereo mode) 120 Hz to 20 kHz Front CH PanasonicCorporation2008.Unauthorized copying and distribution is a violation of law. SA-HT56P Colour (K).Black Type 52 W per channel (3 ) 45 Hz to 150 Hz Subwoofer CH 141 W per channel (6 )

4、Total FTC Output Power245 W Total harmonic distortion half power at 1 kHz (Front CH)0.5% (3 ) Input sensitivity DVD-P,TV,BD/DVR450 mV, IHF66 S/N at rated power DVD-P,TV,BD/DVR 80 dB Input impedance DVD-P,TV,BD/DVR 47 k Tone controls BASS50 Hz, +6 dB to -6 dB TREBLE20 kHz, +6 dB to -6 dB Digital inpu

5、t/output HDMI Input2 HDMI Output1 OPTICAL digital input2 COAXIAL digital input1 Analog input/output Analog audio input3 IOPERATING CONDITION Home Theater Audio System Specification ORDER NO. MD0810001CE A6 RadioFans.CN 收音机爱 好者资料库 Operating temperature range0C to +40C (+32F to +104F) Operating humidi

6、ty range20% to 80% RH (no condensation) IFM TUNER SECTION Frequency range 87.9 MHz to 107.9 MHz Sensitivity11.2 dBf (2 V), IHF58 Total Harmonic distortion MONO0.3% STEREO0.4% S/N MONO64 dB STEREO63 dB Antenna terminal75 (unbalanced) IAM TUNER SECTION Frequency range 530 kHz to 1710 kHz IGENERAL Powe

7、r supply AC 120 V, 60 Hz 1 Safety Precautions 3 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 6 3 Handling the Lead free Solder 7 4 Operation Procedures 8 5 Self Diagnosis and Special Mode Setting 12 6 HDMI Checking Method 17 7 Assembling and Disassemblin

8、g 19 8 Service Positions 43 9 Voltage Measurement 50 Power consumption125 W Dimensions (W H D)430 mm x 105 mm x 388 mm (16 15/16” x 4 1/8” x 15 9/32”) Weight4 kg (8.8 lb.) Power consumption in standby mode: HDMI On:0.7 W HDMI Off:0.3 W Notes: 1. Specifications are subject to change without notice. 2

9、. Total harmonic distortion is measured by the digital spectrum analyzer. ISYSTEM 10 Wiring Connection Diagram 61 11 Block Diagram 63 12 Notes of Schematic Diagram 73 13 Schematic Diagram 75 14 Printed Circuit Board Diagram 91 15 Illustrations of ICs, Transistors & Diodes 99 16 Terminal Functions of

10、 Integrated Circuits 100 17 Exploded Views 101 18 Replacement Parts List 103 CONTENTS Page Page 2 SA-HT56P RadioFans.CN 收音机爱 好者资料库 (This “Safety Precaution” is applied only in U.S.A.) 1.1.2. Leakage Current Hot Check 1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the origina

11、l lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 3. After servicing, check for leakage cur

12、rent checks to prevent from being exposed to shock hazards. 1. Before servicing, unplug the power cord to prevent an electric shock. 2. When replacing parts, use only manufacturers recommended components for safety. 3. Check the condition of the power cord. Replace if wear or damage is evident. 4. A

13、fter servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc. 5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the customer from being exposed to a shock hazard. 1.1.1. Leakage C

14、urrent Cold Check 1. Unplug the AC cord and connect a jumper between the two prongs on the plug. 2. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwheads, connectors, control shafts, etc. When the expos

15、ed metallic part has a return path to the chassis, the reading should be between 1M and 5.2. When the exposed metal does not have a return path to the chassis, the reading must be. 1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2. Connect a 1.5k,

16、 10 watts resistor, in parallel with a 0.15F 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 expo

17、sed 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,

18、leakage current must not exceed 1/2 milliamp. should the measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is returned to the customer. Fig. 1 3 SA-HT56P RadioFans.CN 收音机爱 好者资料库 1.2. Before Repair a

19、nd Adjustment Disconnect AC power, discharge Power Supply Capacitors C701, C703, C704, C706, C714 & C732 through a 10 , 1W 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 g

20、radually using a variac, to avoid overcurrent. Current consumption at AC 120 V, 60Hz in NO SIGNAL mode should be 200 800 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 s

21、tops 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

22、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. Safety Pa

23、rt Information Safety Parts List: There are special components used in this equipment which are important for safety.These parts are marked byin the Schematic Diagrams & Replacement Parts List. It is essential that these critical parts should be replaced with manufacturers specified parts to prevent

24、 shock, fire or other hazards. Do not modify the original design without permission of manufacturer. Table 1 Reference No.Part No.Part Name & DescriptionRemarks 10RGRX0069-AREAR PANELM 22RKMV0052-KTOP CABINETM A2K2CB2CB00021AC CORDM PCB7REPV0149C-PSMPS P.C.BM (RTL) PCB9REPV0149C-PAC INLET P.C.BM (RT

25、L) DZ701ERZV10V511CSZENERM L701J0MBA0000013LINE FILTERM L702ELF22V035BLINE FILTERM L703ELF22V035BLINE FILTERM T701ETS42AD4S4ADMAIN SW TRANSFORMERM T721ETS25AD1P6AGBACKUP SWITCHING TRANSFORMER M T800ETS28AU3G9ACSUB-SWITCHING TRANSM PC701B3PBA0000402PHOTO COUPLERM PC721B3PBA0000402PHOTO COUPLERM RY721

26、K6B1AEA00003POWER RELAYM F1K5D802APA008FUSEM FP1K5G401A00008FUSE PROTECTORM IP701K5H302100004PROTECTORM TH701D4CAA5R10001THERMISTORM TH702D4CC11040013THERMISTORM P701K2AB2B000007AC INLETM C701ECQU2A334MLA0.33uFM C703F1BAF10200201000pFM C704F1BAF10200201000pFM C706ECQU2A104MLC0.1uFM C714F1BAF10200201

27、000pFM C732F1BAF10200201000pFM 4 SA-HT56P 1.5. Caution for fuse replacement 5 SA-HT56P 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electro

28、statically 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. Immed

29、iately before handling any semiconductor component or semiconductor-equiped 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 app

30、lying power to the unit under test. 2. After removing an electrical assembly equiped with ES devices, place the assembly on a conductive surface such as aluminium foil, to prevent electrostatic charge build up or exposure of the assembly. 3. Use only a grounded-tip soldering iron to solder or unsold

31、er ES devices. 4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can generate electrical charge to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES dev

32、ices. 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, aluminium foil or comparable conductive material). 7. Immediately be

33、fore 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. Minim

34、ize body 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). 6 SA-HT56P 3 Handling the Lead

35、 free Solder 3.1. 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 t

36、in (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 (86F) more than that of the normal solder. Definition of PCB Lead Free Solder being used T

37、he 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. (Definitio

38、n: 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 sol

39、der 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 35030 degrees C (66286F). Recommended Lead Free Solder (Service Parts Route.) The fo

40、llowing 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% 7 SA-HT56P 4 Oper

41、ation Procedures 4.1. Remote control operation 8 SA-HT56P 4.2. Main unit operation 9 SA-HT56P 4.3. Basic operations 4.4. Main unit connection 4.4.1. Speaker setup 10 SA-HT56P 4.4.2. Home Theater Connections 11 SA-HT56P 5 Self Diagnosis and Special Mode Setting This unit is equipped with features of

42、self-diagnostic & special mode setting for checking the functions & reliability. 5.1. Service Mode Summary Table Player buttonsApplicationNote Entering into Doctor Mode(Refer to the section “5.2. Doctor & Service Mode (Special Mode Setting)” for more information.) Entering into Service Mode(Refer to

43、 the section “5.2. Doctor & Service Mode (Special Mode Setting)” for more information.) The service mode can be activated by pressing various button combination on the main unit and remote control unit. Below is the summary for the various modes for checking: 12 SA-HT56P 5.2. Doctor & Service Mode (

44、Special Mode setting) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

45、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? MHz ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? MHz MHz MHz MHz MHz TUNEDMONOS