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Panasonic CT-32SX31E Service Manual

Na8ml series
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Service Manual

This Service manual is issued as a service guide for the models of the NA8ML family listed above. Included in this
manual are a set of schematic, block diagrams, functional descriptions, alignment procedures, disassembly
procedures and a complete parts list.
"WARNING! This Service Manual is designed for experienced repair technicians only and is not designed 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 Manual by anyone else could result in serious injury or death."
The service technician is required to read and follow the "Safety Precautions" and "Important Safety Notice" in this Main Manual.
Models
CT-32SX31E
CT-32SX31UE
CT-32SX31CE
CT-36SX31E
CT-36SX31UE
CT-36SX31CE
Copyright 2001 by Matsushita Electric Corporation of
America. All rights reserved. Unauthorized copying
and distribution is a violation of law.
®
ORDER NO. MTNC010524C1
B5
Color Television
Main Manual
(NA8ML)
Panasonic
Chassis
BP371
BP371
BP371
BP372
BP372
BP372

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Summary of Contents for Panasonic CT-32SX31E

  • Page 1: Service Manual

    ORDER NO. MTNC010524C1 Service Manual Color Television Main Manual (NA8ML) Panasonic Models Chassis CT-32SX31E BP371 CT-32SX31UE BP371 CT-32SX31CE BP371 CT-36SX31E BP372 CT-36SX31UE BP372 CT-36SX31CE BP372 This Service manual is issued as a service guide for the models of the NA8ML family listed above. Included in this manual are a set of schematic, block diagrams, functional descriptions, alignment procedures, disassembly procedures and a complete parts list.

  • Page 2: Chassis Service Adjustment Procedures

    Chassis Service Adjustment Procedures All service adjustments are factory preset and should not require adjustment unless controls and/or associated components are replaced. Note: Connect the (-) lead of the voltmeter to the appropriate ground. Use heat sink when the HOT ground symbol ( ) is used.

  • Page 3: Serviceman Mode (Electronic Controls)

    Serviceman Mode (Electronic Controls) This Receiver has electronic technology using the I²C Bus Concept. It performs as a control function and it replaces many mechanical controls. Instead of adjusting mechanical controls individually, many of the control functions are now performed by using “On Screen Display Menu”. (The Serviceman Adjustment Mode.) Note: It is suggested that the technician reads all the way through and understand the following procedure for Entering/Exiting the Serviceman Adjustment Mode;...
  • Page 4 Press the Power Button on the Remote Control to select the Serviceman Adjustment . For Adjustments: 1.Press Channel Up/Down on the Note: Write Down the original 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the each address...
  • Page 5 Press the Power Button on the Remote Control to select the Serviceman Adjustment For Adjustments: 1.Press Channel Up/Down on the Note: Write Down the original 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the each address...
  • Page 6 Press the Power Button on the Remote Control to select the Serviceman Adjustment For Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the the available Service Adjustments each...
  • Page 7 Press the Power Button on the Remote Control to select the Serviceman Adjustment Adjustments: 1.Press Channel Up/Down on the Note: Write Down the original 2.Press Volume Up/Down on the value set (b in Fig. 20 ) for Remote Control to select one of Remote Control to adjust the the available Service Adjustments each...
  • Page 8 Press the Power Button on the Remote Control to select the Serviceman Adjustment For Adjustments: Note: Write Down the original 1.Press Channel Up/Down on the 2.Press Volume Up/Down on the Remote Control to select one of value set (b in Fig. 20 ) for Remote Control to adjust the the available Service Adjustments each...
  • Page 9 To Check Purity: Press the Recall Button on the Remote Control when in Serviceman Mode (red “CHK” is displayed) to enter the Purity Field Check Mode. NORMAL SCREEN Press Recall again to select desired field. BLUE GREEN WHITE SCREEN SCREEN SCREEN SCREEN Figure 21.

  • Page 10: Instructional Flow Chart For Serviceman Mode

    Instructional Flow Chart for Serviceman Mode IMPORTANT NOTE: Always Exit the Serviceman Mode Following Adjustments. NORMAL MODE Momentarily short FA1 to FA2 AGING MODE • Yellow “CHK” appears in upper left corner of screen. WHITE • Volume Up/Down operate rapidly. SCREEN •...
  • Page 11 Instructional Flow Chart for Serviceman Mode - Continued CUT-OFF ADJUSTMENTS. C ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL POWER (ON REMOTE) PINCUSHION ADJUSTMENTS. D ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? IMPORTANT NOTE:...
  • Page 12 Instructional Flow Chart for Serviceman Mode - Continued PIP ADJUSTMENTS. P ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST VOL VOL THE LEVEL POWER (ON REMOTE) OPTIONS ADJUSTMENTS. S ITEMS. ON REMOTE CONTROL TO Adj. SELECT ADJUSTMENT needed? ON REMOTE TO ADJUST...

  • Page 13: Service Adjustments (Electronic Controls)

    Service Adjustments (Electronic Controls) Sub-Contrast Adjustment Serviceman DAC Adjustment (B02, B03) This adjustment is factory set. Do not adjust unless repairs are made to associated circuit, the CRT Board or when the CRT is replaced. Preparation: 3 IRE 1. Apply a Black-White pattern. 2.

  • Page 14: Color Temperature Adjustment (B/W Tracking)

    Procedure: 4. Observe the oscilloscope waveform at Horizontal 1. Connect the oscilloscope to TPY1. rate and adjust the Serviceman Mode Sub-Bright 2. Apply a color bar signal in main and PIP (PIP on). DAC (B02) level until a scanning period of 3.
  • Page 15 Service Adjustments (Electronic Controls, cont.) Horizontal Centering (D00) H-Size Adjustment (D0D) This Adjustment helps to center the picture horizontally Preparation: 1. Apply a Monoscope pattern Preparation: Procedure: Connect a monoscope pattern signal. 1. Adjust “D0D” DATA so that width “A” and “B” Procedure: ±...
  • Page 16 V-Correction Adjustment (D02) Stereo Separation Adjustment (M01 & M02) Preparation: 1. Apply a Crosshatch pattern. Preparation: 2. Adjust (D01) so that V-Size is regular size. 1. Connect an RF signal generator to the RF antenna 3. If b-a<-1.5mm (in top and bottom), increase (D02) input.

  • Page 17: Clock Adjustment (S07)

    Service Adjustments (Electronic Controls, cont.) Clock Adjustment (S07) 3. Calculate based following formula: Preparation: Connect the frequency counter to TPS1 (IC001 pin 13 Hz pin-13) and cold ground ( S 07 – 873.90625 Note: Frequency Counter probe capacitance should be 8pF or less. Figure 38.
  • Page 18 L- Board Schematic, Layout & Voltages - Diagrama Eléctrico, Diagrama Impreso y Voltajes Tarjeta-L ALL MODELS L-Board Voltages - Voltajes Placa-L IDENTIFICACIÓN DE TERMINALES CHIP TRANSISTOR PARA TRANSISTORES EN CHIP LEAD DESIGNATION IC3801 Q3802 Q951 Q952 Q953 ..1.90 0.00 5.40 1.40...
  • Page 19 ALL MODELS A-Board Schematic, Left Portion - Diagrama Eléctrico de la Tarjeta-A, Sección Izquierda - 54 -...
  • Page 20 A-Board Schematic, Right Portion - Diagrama Eléctrico de la Tarjeta-A, Sección Derecha ALL MODELS IMPORTANT SAFETY NOTICE THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL FEATURES THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS DESIGNATED WITH A THE SCHEMATIC.
  • Page 21 A-Board Voltages - Voltajes Tarjeta- A ALL MODELS IC001 IC101 Q002 Q009 Q014 Q1801 Q1802 IC2201 IC2451 IC451 ..0.00 ..2.10 ..4.10 ..3.30 5.60 0.20 0.80...
  • Page 22 ALL MODELS D-Board Schematic - Diagrama Eléctrico Tarjeta-D - 58 -...
  • Page 23 ALL MODELS G-Board Schematic - Diagrama Eléctrico Tarjeta-G - 60 -...
  • Page 24 ALL MODELS A-Board Waveforms - Formas de Onda de la Tarjeta-A NOTA DE SEGURIDAD 3.57MHz LOS DIAGRAMAS ELÉCTRICOS INCLUYEN CARACTERÍSTICAS ESPECIALES MUY IMPORTANTES PARA LA PROTECCIÓN CONTRA RAYOS-X, QUEMADURAS DESCARGAS ELÉCTRICAS. CUANDO SE DE SERVICIO ES IMPORTANTE X’TAL 5.36V p-p 1.11V p-p 1.00V p-p USAR PARA REEMPLAZO DE COMPONENTES CRITICOS,...

  • Page 25: Parts List Abbreviations Guide

    PARTS LIST ABBREVIATIONS GUIDE RESISTOR TYPE TOLERANCE Carbon ± 1% Fuse ± 5% Metal Oxide ± 10% Solid ± 20% Wire Wound ± 2% RES, C 270-J-1/4 CAPACITOR TYPE TOLERANCE Ceramic ± 0.25pF Electrolytic ± 0.5pF Polyester ± 1pF Styrol ±...

  • Page 26: Replacement Parts List

    REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C330 ECA1AM101B...
  • Page 27 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION CAP,M .21UF-J-200V...
  • Page 28 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C1558 ECQB1H104JM3 CAP,P .1UF-J-50V...
  • Page 29 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C2463 ECEA1CN100UB...
  • Page 30 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION D510 MA4082MTA...
  • Page 31 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION IC451 LA78045...
  • Page 32 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION Q402 2SD601ARTX...
  • Page 33 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R043 ERJ6GEYJ103V...
  • Page 34 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R562 ERDS2TJ473T...
  • Page 35 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R965 ERDS2TJ563T...
  • Page 36 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R2207 ERJ6GEYJ102V...
  • Page 37 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R4336 ERJ6GEYJ680V...
  • Page 38 REPLACEMENT PARTS LIST Model: CT-32SX31E/UE/CE & CT-36SX31E/UE/CE. Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION ASSY, CABINET BACK Rubber sheet(1),Double Insul.
  • Page 39 ® Printed in USA K01052223PL0531 - 64 -...

This manual is also suitable for:

Ct-36sx31eCt-32sx31ceCt-32sx31ueCt-36sx31ueCt-36sx31ce

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