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Panasonic TX-37LX75Y-IRAN Service Manual

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Specifications
Power Source :
Power Consumption
Average Use
Standby condition
Display panel
Aspect Ratio
Visible screen size
(No. of pixels)
Sound
Speaker
Audio Output
Headphones
TX-37LX75Y-IRAN
LH60 Chassis
AC SINGLE 220V, 50 Hz
177W
1W
16:9
819.6 mm (w) × 460.8 mm (H)
1,049,088(1,366 (W) × 768 (H))
12cm x 6 cm × 2 pcs, 4 Ω
20 W (10 W + 10 W), 10% THD
M3 (3.5 mm) Jack × 1
ORDER NO. MTV0701557CE
WIDE LCD TV
© 2007 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
Unauthorized
distribution is a violation of law.
copying
and

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Summary of Contents for Panasonic TX-37LX75Y-IRAN

  • Page 1 ORDER NO. MTV0701557CE WIDE LCD TV TX-37LX75Y-IRAN LH60 Chassis Specifications Power Source : AC SINGLE 220V, 50 Hz Power Consumption Average Use 177W Standby condition Display panel Aspect Ratio 16:9 Visible screen size 819.6 mm (w) × 460.8 mm (H) (No.
  • Page 2 TX-37LX75Y-IRAN Receiving System / Band name Aerial - Rear VHF / UHF Operation Conditions Temperature : 0 °C - 40 °C Humidity : 20% -- 80% RH (non-condensing) Connection Terminals : AUDIO L-R RCA PIN Type × 2 0.5 V[rms] 1.0 V[p-p] (75 Ω...

  • Page 3: Table Of Contents

    TX-37LX75Y-IRAN CONTENTS Page Page 1 Safety Precautions 8.4. Hotel Mode Adjustment 1.1. General Guidelines 9 Adjustment 1.2. Touch-Current Check 9.1. Voltage chart of A Board 2 Prevention of Electro Static Discharge (ESD) to 9.2. Voltage chart of AP board Electrostatically Sensitive (ES) Devices 9.3.

  • Page 4: Safety Precautions

    TX-37LX75Y-IRAN 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.

  • Page 5: Prevention Of Electro Static Discharge (Esd) To Electrostatically Sensitive (Es) Devices

    TX-37LX75Y-IRAN 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"...

  • Page 6: About Lead Free Solder (Pbf)

    TX-37LX75Y-IRAN 3 About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).

  • Page 7: Self Check Function

    TX-37LX75Y-IRAN 4 Self Check Function 4.1. Self Check 1. Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set. 2. To get into the Self -Check mode press the Down button on the customer controls at the front of the set, at the same time pressing the MENU button on the remote control, and the screen will show : 3.
  • Page 8 TX-37LX75Y-IRAN...

  • Page 9: Chassis Board Layout

    TX-37LX75Y-IRAN 5 Chassis Board Layout...

  • Page 10: Location Of Lead Wiring

    TX-37LX75Y-IRAN 6 Location of Lead Wiring 6.1. Wire Dressing 6.2. Wire Dressing and connections...

  • Page 11: Disassembly For Service

    TX-37LX75Y-IRAN 7 Disassembly for Service 7.1. AC CODE INSTALLATION...

  • Page 12: Bracket Installation

    TX-37LX75Y-IRAN 7.2. BRACKET INSTALLATION...

  • Page 13: Installation Pedestal

    TX-37LX75Y-IRAN 7.3. Installation Pedestal...

  • Page 14: Emi

    TX-37LX75Y-IRAN 7.4.

  • Page 15: Vesa Plate Installation

    TX-37LX75Y-IRAN 7.5. VESA PLATE INSTALLATION...

  • Page 16: Lcd Panel Assy Installation

    TX-37LX75Y-IRAN 7.6. LCD PANEL ASSY INSTALLATION...

  • Page 17: Service Mode Adjustment

    TX-37LX75Y-IRAN 8 Service Mode Adjustment Set channel 99 than press set timer 30min, press recall button (remote) and - button LCD panel. 8.1. SERVICE 1 1. Press Red button (remote) for adjustment below. 8.2. SERVICE 2 1. Select CEC CHECK mode in service 1 than press HOLD button (REMOTE) to enter service 2.
  • Page 18 TX-37LX75Y-IRAN...

  • Page 19: Adjustment

    TX-37LX75Y-IRAN 9 Adjustment 9.1. Voltage chart of A Board 9.2. Voltage chart of AP board...

  • Page 20: Dvco Adjustment

    TX-37LX75Y-IRAN 9.3. DVCO adjustment...

  • Page 21: Conductor Views

    TX-37LX75Y-IRAN 10 Conductor Views 10.1. A-Board A-BOARD (A SIDE) TNP4G399 Parts Location A-BOARD IC IC IC4006 IC1804 IC1805 IC5003 IC5004 IC5005 IC1102 IC4004 IC4001 IC4005 IC1803 IC3860 IC2005 IC2001...
  • Page 22 TX-37LX75Y-IRAN 10.2. A-Board A-BOARD (B SIDE) TNP4G399 Parts Location A-BOARD IC5002 IC5001 IC4003...

  • Page 23: Schematic Diagram

    TX-37LX75Y-IRAN 11 Schematic Diagram 11.1. Schematic Diagram Notes...

  • Page 24: A Board

    TX-37LX75Y-IRAN 11.2. A Board 11.2.1. A Board (1 / 10) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...
  • Page 25 TX-37LX75Y-IRAN 11.2.2. A Board (2 / 10) <1A> <1B> <2A> <3A> <4A> <2B> <5A> <3B> <4B> <5B> <6A> <7A> <6B> <8A> <7B> <9A> <8B>...
  • Page 26 TX-37LX75Y-IRAN 11.2.3. A Board (3 / 10) <1B> <1C> <2C> <3C> <2B> <3B> <4B> <4C> <5C> <5B> <6C> <6B> <7C> <7B> <8C> <8B> <9C>...
  • Page 27 TX-37LX75Y-IRAN 11.2.4. A Board (4 / 10) <1C> <1D> <2C> <2D> <3C> <3D> <4C> <5C> <4D> <6C> <7C> <5D> <8C> <6D> <9C> <7D>...
  • Page 28 TX-37LX75Y-IRAN 11.2.5. A Board (5 / 10) <1D> <1E> <2D> <2E> <3D> <3E> <4E> <4D> <5E> <5D> <6D> <6E> <7D> <7E>...
  • Page 29 TX-37LX75Y-IRAN 11.2.6. A Board (6 / 10) <1E> <1F> <2E> <2F> <3E> <3F> <4E> <5E> <4F> <5F> <6F> <6E> <7E> <7F>...
  • Page 30 TX-37LX75Y-IRAN 11.2.7. A Board (7 / 10) <1F> <1G> <2F> <2G> <3G> <3F> <4G> <4F> <5F> <6F> <5G> <6G> <7F> <7G>...
  • Page 31 TX-37LX75Y-IRAN 11.2.8. A Board (8 / 10) <1G> <1H> <2G> <2H> <3G> <3H> <4G> <4H> <5H> <6H> <5G> <7H> <6G> <7G> <8H>...
  • Page 32 TX-37LX75Y-IRAN 11.2.9. A Board (9 / 10) <1H> <1I> <2H> <2I> <3H> <3I> <4I> <4H> <5I> <5H> <6I> <6H> <7I> <7H> <8I> <8H> <9I>...
  • Page 33 TX-37LX75Y-IRAN 11.2.10. A Board (10 / 10) <1I> <2I> <3I> <4I> <5I> <6I> <7I> <8I> <9I>...

  • Page 34: Ap Board

    TX-37LX75Y-IRAN 11.3. AP Board 11.3.1. AP Board (1 / 4) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...
  • Page 35 TX-37LX75Y-IRAN 11.3.2. AP Board (2 / 4) <1A> <1B> <2A> <2B> <3A> <3B> <4B> <4A> <5B> <5A> <6A> <7A> <6B> <8A> <9A> <7B>...
  • Page 36 TX-37LX75Y-IRAN 11.3.3. AP Board (3 / 4) <1B> <1C> <2B> <2C> <3B> <3C> <4B> <4C> <5B> <5C> <6B> <6C> <7B> <7C>...
  • Page 37 TX-37LX75Y-IRAN 11.3.4. AP Board (4 / 4) <1C> <2C> <3C> <4C> <5C> <6C> <7C>...

  • Page 38: Board

    TX-37LX75Y-IRAN 11.4. V Board 11.4.1. V Board (1 / 2) <1A> <2A> <3A> <4A>...
  • Page 39 TX-37LX75Y-IRAN 11.4.2. V Board (2 / 2) <1A> <2A> <3A> <4A>...

  • Page 40: G Board

    TX-37LX75Y-IRAN 11.5. G Board 11.5.1. G Board (1 / 2) <1A> <2A> <3A> <4A> <5A>...
  • Page 41 TX-37LX75Y-IRAN 11.5.2. G Board (2 / 2) <1A> <2A> <3A> <4A> <5A>...

  • Page 42: P Board

    TX-37LX75Y-IRAN 11.6. P Board 11.6.1. P Board (1 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...
  • Page 43 TX-37LX75Y-IRAN 11.6.2. P Board (2 / 2) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...

  • Page 44: K Board

    TX-37LX75Y-IRAN 11.7. K Board 11.7.1. K Board (1 / 1)

  • Page 45: Parts Location & Mechanical Replacement Parts List

    TX-37LX75Y-IRAN 12 Parts Location & Mechanical Replacement Parts List 12.1. Parts Location...

  • Page 46: Packing Exploded View

    TX-37LX75Y-IRAN 13 Packing Exploded View 13.1. BOTTOM PACKING CASE INSTALLATION...

  • Page 47: Top Packing Case Installation

    TX-37LX75Y-IRAN 13.2. TOP PACKING CASE INSTALLATION...

  • Page 48: Packing

    TX-37LX75Y-IRAN 13.3. Packing...

  • Page 49: Replacement Parts List

    TX-37LX75Y-IRAN 14 Replacement Parts List...

  • Page 50: Electrical Replacement Parts List

    TX-37LX75Y-IRAN 14.1. Electrical Replacement Parts List Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks K0RB00500021 CONTROL PANEL ASSY C2103 ECJ2FB1E105K C 1UF, K, 25V K2CQ2YY00003 AC CORD C2106 ECJ2FB1E105K C 1UF, K, 25V...
  • Page 51 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C4015 ECJ1VB1C104K C 0.1UF, K, 16V C4097 F1G1A1040006 C 0.1UF, 10V C4016 ECJ1VB1C104K C 0.1UF, K, 16V C4098 ECJ1VB1H102K C 1000PF, K, 50V...
  • Page 52 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C5032 ECJ1VB1C104K C 0.1UF, K, 16V C924 ECJ1VB1H104K C 0.1UF, K, 50V C5033 F1G1A1040006 C 0.1UF, 10V C926 ECJ1VB1H104K C 0.1UF, K, 50V...
  • Page 53 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D3008 MAZ81400ML DIODE D802 B0FBAT000014 DIODE D3009 MAZ81400ML DIODE D803 ERZV10V621CS VARISTOR D3013 MAZ81400ML DIODE D810 B0HBSM000053 DIODE D3014 MAZ81400ML DIODE D820 B0AACK000004...
  • Page 54 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L4001 J0JHC0000078 BEAD CORE Q3003 2SC584500L TRANSISTOR L4002 J0JHC0000078 BEAD CORE Q3005 2SC584500L TRANSISTOR L4003 J0JHC0000078 BEAD CORE Q3006 2SC584500L TRANSISTOR L4004 J0JHC0000078...
  • Page 55 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R1176 ERJ3GEYJ101 M 100OHM,J,1/16W R2310 ERJ3GEYJ222 M 2.2KOHM,J,1/16W R1177 ERJ3GEYJ101 M 100OHM,J,1/16W R2313 ERJ2GEJ104X F 100KOHM,J,1/16W R1236 ERJ3GEYJ103 M 10KOHM,J,1/16W R2314 ERJ2GEJ105X F 1MOHM,J,1/16W...
  • Page 56 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R3200 ERJ3GEYJ103 M 10KOHM,J,1/16W R4019 ERJ3GEYJ473 M 47KOHM,J,1/16W R3201 ERJ3GEYJ473 M 47KOHM,J,1/16W R4020 ERJ3GEYJ103 M 10KOHM,J,1/16W R3203 ERJ3GEYJ103 M 10KOHM,J,1/16W R4021 ERJ3GEYJ103 M 10KOHM,J,1/16W...
  • Page 57 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R4130 ERJ3GEY0R00 M 0OHM,J,1/16W R4254 ERJ3GEYJ103 M 10KOHM,J,1/16W R4131 ERJ3GEYJ221 M 220OHM,J,1/16W R4255 ERJ3GEYJ104 M 100KOHM,J,1/16W R4132 ERJ3GEYJ221 M 220OHM,J,1/16W R4256 ERJ3GEY0R00 M 0OHM,J,1/16W...
  • Page 58 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R5032 ERJ3GEYJ103 M 10KOHM,J,1/16W R802 ERG2SJW473E M 47KOHM,J, 2W R5035 ERJ3GEYJ472 M 4.7KOHM,J,1/16W R803 D0AW825JA001 C 8.2MOHM,J, 1/16W R5036 ERJ3GEYJ472 M 4.7KOHM,J,1/16W R804...
  • Page 59 TX-37LX75Y-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R952 ERJ3GEYJ103 M 10KOHM,J,1/16W K1KB19AA0032 CONNECTOR R953 ERJ3GEYJ473 M 47KOHM,J,1/16W K1KB15AA0032 CONNECTOR R954 ERJ3GEYJ102 M 1KOHM,J,1/16W PC841 B3PAA0000261 PHOTO COUPLER R956 ERJ3GEYJ473 M 47KOHM,J,1/16W...

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