Panasonic SA-HT740P Service Manual

Dvd home theater sound system
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Subject : F61 Countermeasure Summary
Please file and use this supplement manual together with the service manual for
Model No.SA-HT740PPC-S, Order No. MD0512491C1
Model No.SA-HT740PX-S, Order No. MD0605181A3
Model No.SA-HT743PPC-S, Order No. MD0603063A1
Model No.SA-HT940PPC-S, Order No. MD0603057C1
CONTENTS
DVD Home Theater Sound System
SA-HT740P
SA-HT740PC
SA-HT740PX
SA-HT743P
SA-HT743PC
SA-HT940P
SA-HT940PC
Colour
(S) .... Silver Type
Page
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© 2007 Matsushita Electric Industrial Co., Ltd. All
rights
distribution is a violation of law.
ORDER NO. MD0702028SE
reserved.
Unauthorized
copying
A6
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and

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Table of Contents
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Summary of Contents for Panasonic SA-HT740P

  • Page 1: Table Of Contents

    4.3. Assembly of DHIC 3 Location of Replacement & Removal Parts 5 Schematic Diagram 3.1. Location and Replacement of Resistors (R5041, R5042 & 5.1. Power Circuit (SA-HT740P/PC) R5072) 5.2. Power (Damp) Circuit (SA-HT740PX) 3.2. Location and Replacement of Capacitor (C5718) 5.3.
  • Page 2 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 6.1. Power P.C.B. (SA-HT740P/PC) 7.1. SA-HT740P/PC-S 6.2. Power P.C.B. (SA-HT743P/PC) 7.2. SA-HT740PX-S 6.3. Power P.C.B. (SA-HT940P/PC) 7.3. SA-HT743P/PC-S & SA-HT940P/PC-S 7 Replacement Parts List...
  • Page 3: Background

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 1 Background This technical document illustrates the checking procedures when upon detecting the error code of “F61”. After the unit is switched on, front display shows “F61”, and then unit shuts down. One possible problem is the DHIC located on the main unit (Power P.C.B) is not operating in good condition or damage.
  • Page 4: Service Parts Replacement

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 2 Service Parts Replacement · Models applicable : SA-HT740P/PC-S, SA-HT740PX-S, SA-HT743P/PC-S and SA-HT940P/PC-S · Remedy: Replace the IC, and then apply a fresh coat of heat sink compound before mounting the heat sink on the IC. DHIC (IC5001)
  • Page 5: Location Of Replacement & Removal Parts

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 3 Location of Replacement & Removal Parts This section includes the location of the parts for changes of improvement. 3.1. Location and Replacement of Resistors (R5041, R5042 & R5072) 3.2.
  • Page 6: Location And Removal Of Capacitors (C5027 & C5028)

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 3.3. Location and Removal of Capacitors (C5027 & C5028) 3.4. Reduce Length of Speaker Wire Strip...
  • Page 7: Assembling And Disassembling Of Dhic

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 4 Assembling and Disassembling of DHIC “ATTENTION SERVICER” Some chassis components may be have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
  • Page 8: Disassembly Of Dhic

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 4.2. Disassembly of DHIC 4.2.1. Removal of Top Cabinet Step 1 : Remove 3 screws on Rear Panel. Step 3 : Remove Top Cabinet as arrow shown.
  • Page 9 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 3 : Push and hold the Open Lock Gear and then push the Tray Assembly as arrows shown. 4.2.3. Removal of Front Panel · Follow the (Step 1) - (Step 3) of item 4.2.1.
  • Page 10 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 2 : Detach the FFC (CN5702). Step 2 : Disconnect the connector (CN2013) and detach the FFC (CN5707 and CN5705) then remove the Front Panel as arrow shown.
  • Page 11 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC · Follow the (Step 1) - (Step 2) of item 4.2.3. · Follow the (Step 1) - (Step 3) of item 4.2.4. · Follow the (Step 1) - (Step 3) of item 4.2.5.
  • Page 12: Assembly Of Dhic

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 4.3. Assembly of DHIC 4.3.1. Assembly of Main P.C.B. Step 5 : Insert the lead clamper (2 pieces) through the hole as arrows shown to hold the wires.
  • Page 13 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 9 : Fix the Rear Panel as arrow shown. Step 13 : Positioned the Tray Assembly at the tray guide (L). Step 10 : Fix 9 screws.
  • Page 14 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 15 : Ensure the Front Panel is properly located and fully catched. Step 14 : Push and hold the Open Lock Gear and then push the Tray Assembly as arrows shown.
  • Page 15 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 17 : Push and hold the Close Lock Gear and then push the Tray Assembly as arrows shown. Step 19 : Push and hold the Open Loack Gear and then push the Tray Assembly as arrows shown.
  • Page 16 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 21 : Fix 4 screws on L/R side of Top Cabinet. Step 22 : Fix 3 screws on Rear Panel.
  • Page 17: Schematic Diagram

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5 Schematic Diagram 5.1. Power Circuit (SA-HT740P/PC) SCHEMATIC DIAGRAM-12 POWER CIRCUIT : MAIN SIGNAL LINE :+B SIGNAL LINE :-B SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD...
  • Page 18: Power (Damp) Circuit (Sa-Ht740Px)

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5.2. Power (Damp) Circuit (SA-HT740PX) SCHEMATIC DIAGRAM-13 POWER(DAMP) CIRCUIT :+B SIGNAL LINE :-B SIGNAL LINE : MAIN SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD -30_VDD IC5001...
  • Page 19: Power Circuit (Sa-Ht743P/Pc)

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5.3. Power Circuit (SA-HT743P/PC) SCHEMATIC DIAGRAM-12 POWER CIRCUIT : MAIN SIGNAL LINE :+B SIGNAL LINE :-B SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD -30_VDD IC5001 RSN704D65-P...
  • Page 20: Power (Damp) Circuit (Sa-Ht940P/Pc)

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5.4. Power (Damp) Circuit (SA-HT940P/PC) SCHEMATIC DIAGRAM-12 POWER(DAMP) CIRCUIT : MAIN SIGNAL LINE :+B SIGNAL LINE :-B SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD -30_VDD IC5001...
  • Page 21: Printed Circuit Board

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 6 Printed Circuit Board 6.1. Power P.C.B. (SA-HT740P/PC) POWER P.C.B. (REPX0511A) IC5702 C5712 Q5701 PC5701 R5766 CN5714 R5793 Q5002 R5709 R5708 D5708 R5797 TO FAN D5706 R5740...
  • Page 22 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 6.2. Power P.C.B. (SA-HT743P/PC) POWER P.C.B. (REPX0511A) IC5702 PC5701 CN5714 C5712 Q5701 R5766 R5709 R5793 Q5002 R5708 TO FAN D5708 R5797 D5706 R5740 CN5711 C5702 C5761 ZJ5702...
  • Page 23 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 6.3. Power P.C.B. (SA-HT940P/PC) POWER P.C.B. (REPX0540A) IC5702 PC5701 CN5714 C5712 Q5701 R5793 R5766 R5709 Q5002 R5708 TO FAN D5708 R5797 D5706 R5740 CN5711 C5702 C5761 ZJ5702...
  • Page 24 SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC...
  • Page 25: Replacement Parts List

    SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 7 Replacement Parts List Below is the parts change information: 7.1. SA-HT740P/PC-S Model No. Ref. No. Original Part No. New Part No. Notes Part Name & Description...

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