Panasonic SAPT660 - DVD HOME THEATER SOUND SYSTEM Technical Manual Download Page 1

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Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85

Outline
Wireless
Mech
Pwr Supply
Protection
Audio

Home Theater Products Repair

Panasonic Service and Technology Company

SA-PT660
SA-PT760 / 954 / 956
SA-PT960
SH-FX65, 67, FX85

(wireless)

For 2008-9 models:

Technical Guide

National Training

Sample Model SC-PT760 Home Theater System

Contents

Hints / Layout / Reset

Wireless Section

Power On Sequence

5 Disc Mechanism (

CR-14)

Operation

Alignment

Troubleshooting

Laser replacement

Power Supply,

Protection Troubleshooting

(F61 or F76 Error Code)

No Audio (main unit)

SA-

PT7

Herb Chin

Summary of Contents for SAPT660 - DVD HOME THEATER SOUND SYSTEM

Page 1: ...SA PT960 SH FX65 67 FX85 wireless For 2008 9 models Technical Guide National Training Sample Model SC PT760 Home Theater System Contents Hints Layout Reset 4 Wireless Section 8 Power On Sequence 14 5 Disc Mechanism CR 14 o Operation 15 o Alignment 16 o Troubleshooting 21 o Laser replacement 25 Power Supply 31 Protection Troubleshooting F61 or F76 Error Code 34 No Audio main unit 39 SA PT760 Herb C...

Page 2: ... for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in s...

Page 3: ...sting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio ...

Page 4: ...he recovery disc and reset the unit see IV at left III Troubleshooting by cable Removal Cable Removed Display Symptom 1 Large 50 pin DVD cable CN2001 off Hello Aux last input Close change error Fan on No AM FM mode No audio Unit remains on Vol level changes w knob but no audio 2 2 rear mech cables off fp8531 fp8251 Hello Din Fan on Mech motor buzzes display skips DVD when press Sel button No audio...

Page 5: ...Slide 5 Models SA PT660 SA PT760 SA PT960 SA PT1060 SH FX67 85 Outline Wireless Mech Pwr Supply Protection Audio PT760 Layout 1 Top Level ...

Page 6: ...Slide 6 Models SA PT660 SA PT760 SA PT960 SA PT1060 SH FX67 85 Outline Wireless Mech Pwr Supply Protection Audio PT760 Layout Bottom Level ...

Page 7: ...sting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio ...

Page 8: ...spks optional FX67 or FX85 SA PT760 wireless rear spks SA PT960 wireless rear spks more pwr SH FX65 67 max range 49 ID set button back Receiver Transmitter card Wireless rear receiver Optional for the PT660 Transmitter card REPX 0644b Receiver card REPX 0645b Need a manual for the wireless portions of the above units Try a model below SH FX65 takes spk wires SH FX67 takes spk plug ...

Page 9: ... the button is pressed 3 Go to slide 7 to check the transmitter card Sw 5V voltage at the main board CN2003 or at the card socket itself CN6301 1 The RF connection is OK No audio is the problem Replace the transmitter card if hot damaged when plugged in while the unit was powered on 2 Go to slide 6 and follow steps 7 to turn on S Music mode surround music This makes the rear surround speaker sound...

Page 10: ...unit s display hold down the front panel FF button and the remote s 3 Button 4 Indicators a W1 W2 will blink on the main unit s display if the transmitter card is inserted b P icon will be displayed when the pairing process is started 5 Mating While the P is present press the rear receiver recessed ID Set button 6 Indicator The W1 W2 will stop blinking proving an RF match has been made 7 Audio Tes...

Page 11: ...2 8 Notes 1 Measure the voltages at the CN2003 main board with the Transmitter card Bd plugged in 2 Channel 2 audio is present with a surround sound DVD or if the S Music is turned ON See the previous slide step 7 for access S Music 3 Channel 1 audio is only present when its 2nd room accessory transmitter card is plugged in Otherwise channel 1 is muted 4 Data is only present when the T card is in ...

Page 12: ...ction Audio Wireless Troubleshooting Information 2 2 Receiver part Use this diagram to Receiver card is getting power CN1100 pin 5 Receiver card is outputting Audio CN1100 pin 2 Receiver card is not muting the audio CN1100 pin 10 Transmitter card REPX 0644b Receiver card REPX 0645b SH FX67 receiver amp ...

Page 13: ...esting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio...

Page 14: ... checks Top Home mech switches to ID tray 1 SW3 Q3 0Vdc tray 1 loaded in the laser 6 If tray 1 is not in the laser compartment default the mech will load tray 1 in Not tray 1 moves to stock center position Q1 UD sensor 0Vdc to stop rear traverse motor Elevator moves laser assembly up to tray 1 level SW 3 0Vdc at top level to stop the stock elevator motor tray 1 Tray 1 is pulled into the laser asse...

Page 15: ...on TRV motor c Display Change d Laser assembly lowers to tray 5 location Stocker motor e TRV motor pulls tray 5 into the laser assembly f TRV motor clamps the disc if any g TRV motor moves the sled away from home position to begin disc readout for play All Trays out Close Open button is pressed a Laser drops down unclamps and tray returns to middle stock location TRV motor b Stocker motor continue...

Page 16: ...r is made after the traverse assembly elevators to the desired tray level The following occurs in the rear traverse assembly 2 The traverse motor uses arms to pull the tray into gear 331 Pictures in the fourth slide 4 4 3 SW4 opens fp 8251 to tell the micro the tray is in 4 The traverse motor continues to turn bringing the tray in then clamps the disc 5 SW5 opens fp 8251 at clamp end and sled move...

Page 17: ...ss Mech Pwr Supply Protection Audio 5 Disc Mechanism Assembly Transfer Alignment Trays Out 2 4 Preparing the Traverse unit for docking 1 Trays Out laser down 2 Rotate the black gears so the white slider and laser are forward as shown Next page is a close up picture Rear Figure 2 ...

Page 18: ...e other end of the 336 slide plate to engage gear 331 5 Rotate the 331 gear cw so the plastic arm of the sub plate points past the triangle cutout all the way left as shown This is the elevator position 6 The rear Traverse portion of the mech is ready for docking with the front tray assembly 7 Optional At the middle tray area fig 4 you may manually rotate the stocking motor gear so the black gear ...

Page 19: ...lever slips under tray 1 Fig 8 333 lever pulls tray 1 into gear 331 on the other side not shown Gear 331 grabs the tray teeth and pulls the tray into the laser assembly rear Lever 333 Laser area Stock area III Trays moved from the middle stock area must be transferred to the laser area Tray transfer is made after the traverse assembly elevators to the desired tray level The traverse motor uses arm...

Page 20: ...esting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio...

Page 21: ...net plate Access Cover removal to view the mechanism 1 Left fig 9 Push down on the 2 plastic catches and slide the top plastic cover rearwards to unlock 2 Lift up the top plastic cover about for clearance and slide out toward the front to unhook the 2 tray stop arms 3 Right fig 10 Remove the spindle magnet plate by pulling in on the 2 plastic catches then lift the plate up and out up out ...

Page 22: ...hen they turn on they ground out the micro input lines proving each sensor is OK Procedure 1a Note the position of the tray in the jammed mechanism pictured left 1b Unplug the ribbon cable from socket CN2011 2 Measure the voltage at each of the CN2011 socket pins The voltages should be identical to the ones listed on the next page Default Tray 1 loaded Defect All or some trays Out Defect Trays 2 5...

Page 23: ...voltages at the same CN2011 connector to the corresponding column in the chart below cable inserted Pictures are on the previous page If any of the voltages do not agree with the chart below the corresponding sensor Q1 5 Sw3 4 is bad If the voltages all agree the mechanical assembly is defective or out of alignment Replace the assembly or do the prev transfer alignment CN2011 Connector Voltage CN2...

Page 24: ...esting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio...

Page 25: ... position is shown at left for understanding only B Unplug the 3 cables and Remove the mechanism C Turn the mech over Go to the next page Panasonic CR 14 Mechanism Default Position no discs If the mechanism is replaced The TRV laser assembly is transplanted to the new mechanism Mech p n RD DDC026 S Traverse Laser p n RD DDtx002 V front back Fig 14 Mech p n RD DDC026 S Traverse Laser p n RD DDtx002...

Page 26: ... 5 Removed from play position D Removing the Laser assembly from the bottom in play position 1 Locate the bottom of 335 TRV slide plate and move the catch up as shown 2 Slide 336 sub slide plate to the right as shown until the grooves in the slot are revealed permitting the traverse assembly to lift out 3 Go to the next page back front 336 335 Fig 15 ...

Page 27: ...FX67 85 Outline Wireless Mech Pwr Supply Protection Audio Removing the Laser assembly 3 Lift up the TRV assembly in the direction of the two arrows shown Go to the next page front back 5 Disc Mechanism Laser Replacement 3 5 Removed from play position Fig 16 ...

Page 28: ...dio 5 Disc Mechanism Laser Replacement 4 5 Installation Reinstalling the Laser assembly 4 Before dropping the laser assembly into the TRV assembly observe the two areas A B outlined 5 During the insertion mate the pin of the laser slider A to the mechanism s corresponding groove B Go to the next page B A Fig 17 ...

Page 29: ...io 5 Disc Mechanism Laser Replacement 5 5 Installation Reinstalling the Laser assembly 6 Drop the laser assembly in 7 Slide the lever to the left as shown in arrow 2 8 Make sure the catch is back down 9 Finished Turn the mechanism over and connect the mech s 3 ribbon cables to the remainder of the unit 4 Fig 18 ...

Page 30: ...ns Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 General Operation 15 Concept Alignment 16 Failure Mech or circuitry Access 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Pr...

Page 31: ...Reg circuit IC5801 Q5802 Lower than 30V Lower than 1 5V Output Stage IC5701 T5701 D5702 Higher than 30V Higher than 1 5V Output Stage IC5701 T5701 D5702 Higher than 30V Lower than 1 5V Reg circuit IC5801 Q5802 Dividing a PS problem to the output or regulation stage with 2 voltages Plug In Power ON Sequence 1 Press Power ON 2 Fan turns on Starts Noisy 3 Hello is displayed 4 Last Mode used is displa...

Page 32: ...Slide 32 Models SA PT660 SA PT760 SA PT960 SA PT1060 SH FX67 85 Outline Wireless Mech Pwr Supply Protection Audio Power Supply Circuit ...

Page 33: ...esting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio...

Page 34: ...Slide 34 Models SA PT660 SA PT760 SA PT960 SA PT1060 SH FX67 85 Outline Wireless Mech Pwr Supply Protection Audio PT760 Protection Troubleshooting Concept ...

Page 35: ...Slide 35 Models SA PT660 SA PT760 SA PT960 SA PT1060 SH FX67 85 Outline Wireless Mech Pwr Supply Protection Audio PT760 Protection Circuit ...

Page 36: ...oard The problem is on the D Amp board if the unit remains powered on no F61 error code with CN5050 unplugged disconnected Go to A 3 Isolate the problem to the SMPS board The problem is on the SMPS board if the unit remains powered on no F61 error code with CN5802 pin 4 removed from the plug and the connector plugged back into the socket with wire 4 missing Go to B next page F76 Error Code 1 On th...

Page 37: ... fan 18V CN5500 pin1 Missing Trace it to its source using the simplified PS diagrams 3 If the voltages are all present replace TH5860 Q5861 2 and QR5802 C Power Board 1 Resolder CN2008 pin 21 or reconnect jumper w2866 removed previously 2 Unplug 50 pin ribbon cable at main board CN2001 and power on the unit No more F76 error code Replace the DVD module 3 If F76 still appears replace Q2921 Q2922 an...

Page 38: ...esting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio...

Page 39: ...Slide 39 Models SA PT660 SA PT760 SA PT960 SA PT1060 SH FX67 85 Outline Wireless Mech Pwr Supply Protection Audio Audio Processing Concepts ...

Page 40: ...Output background sine wave at 1 4Vp p 375kHz Duty cycle 50 Average spk DC voltage 0Vdc Same output with or without speakers Normal RF waveform at the speaker terminals even when there is no sound Typical voice waveform at the speaker terminals There is a constant 1 4Vp p minimum signal with the digital PAM audio PAM Pulse Amplitude Modulation Units with a digital power output IC always outputs a ...

Page 41: ...gram info to select S Music then scope the audio at CN2003 pins 3 Hum Unplug CN5050 and power the unit on a Hum still present Damp board problem The board s gnd should not touch the chassis b Hum gone SMPS or Main board problem Main transformer T5701 if lightning damage 4 Mute Causes a Headphone plugged in instructs the micro to mute the spk output ck sw at CN2007 pin 11 b Unplug the tuner from th...

Page 42: ...esting Paring Trans Rec 10 Transmitter Receiver Repair Info 11 Power ON Power On Sequence 14 Mechanism stacked 5 Disc model CR 14 Operation 15 Alignment 16 Troubleshooting 21 Laser Replacement removal install 25 Power Supply PS Block with isolation strategy 31 PS Circuit with ref voltages 32 Protection Protection Concept F61 F76 codes 34 Protection Circuitry 35 Protection Repair Procedure 36 Audio...

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