Panasonic CT-32SX31UE user manual

User manual for the device Panasonic CT-32SX31UE

Device: Panasonic CT-32SX31UE
Category: CRT Television
Manufacturer: Panasonic
Size: 4.5 MB
Added : 1/18/2014
Number of pages: 31
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Abstracts of contents
Summary of the content on the page No. 1

ORDER NO. MTNC010524C1
B5
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.
“WARNING! This Service Manual is

Summary of the content on the page No. 2

Important Safety Notice Special components are used in this television set which are important for safety. These parts are identified on the schematic diagram by the symbol and printed in BOLD TYPE on the replacement part list. It is essential that these critical parts are replaced with the manufacturer’s specified replacement part to prevent X-ray radiation, shock, fire or other hazards. Do not modify the original design without the manufacturer’s permission. Safety Precautions General Guideli

Summary of the content on the page No. 3

Important Safety Notice . . . . . . . . . . . . . . . . . . 2 Instructional Flow Chart for Serviceman Mode . . . . . . . . . . . . . . . . . . . 24 Safety Precautions . . . . . . . . . . . . . . . . . 2 Service Adjustments General Guidelines. . . . . . . . . . . . . . . . . 2 (Electronic Controls). . . . . . . . . . . . . . . . . 27 Leakage Current Cold Check . . . . . . . . . 2 X-ray Radiation. . . . . . . . . . . . . . . . . . . . 2 Sub-Contrast Adjustment . . . . . . . . . . . 27 Horizontal O

Summary of the content on the page No. 4

Service Notes Note: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless Chip Component How to Replace Flat-IC - Required Tools - (surface mount) Chip components must be replaced with identical chips • Soldering iron • De-solder braids due to critical foil track spacing. There are n

Summary of the content on the page No. 5

Service Notes (Continued) IMPORTANT: To protect against possible damage to Preparation the solid state devices due to arcing or static 1. Connect Receiver to AC 120 Volts. Do not turn ON. discharge, make certain that all ground wires and CTR 2. Connect HIGH VOLTAGE meter to 2nd anode DAG wire are securely connected. (H.V. button). Note: Use cold ground( ) for negative lead. CAUTION: The power supply circuit is above earth 3. Connect the ammeter serial from the flyback anode ground and the chassi

Summary of the content on the page No. 6

Receiver Feature Table FEATURE\MODEL CT-32SX31E/UE/CE CT-36SX31E/UE/CE Chassis NA8ML Tunning system 96K # of channels 181 Menu language Eng/Span/Fr Closed Caption X V-Chip (USA/CANADA) X 2RF X Remote Model # EUR511500 Picture tube AMEC Comb Filter 3 DIG VM X V/A norm X Color Temp X MTS/SAP/DBX X BASS/BL/TRE Control X AI Sound X Surround X SPATIALIZER/BBE BBE Built-in audio power 10W/CH (10%) # of speakers 2 A/V in (rear/front) 3(2/1) S-VHS Input (rear/front) 1/1 Component Input 1 (Y,Pb,Pr) Audio

Summary of the content on the page No. 7

Location of Controls (Receiver) Front A/V Jacks VOLUME CHANNEL ACTIO TV N /VIDEO POWER Controls Inside Remote Control Sensor front door 2 3 4 5 1 Figure 3. Location of Controls (Receiver). Quick Reference Control Operation Quick Reference Control Operation 1 Power Button - Press to turn ON or OFF. Volume Buttons - Press to adjust Sound Level, or to adjust Audio Menus, Video 2 Menus, and select operating features when menus are displayed Channel Buttons - Press to select programmed chann

Summary of the content on the page No. 8

Location of Controls (Remote) MULTI Button POWER Button Programmable button that can Press to turn ON and OFF. operate up to seven (7) functions at MUTE Button once Press to mute sound. TV/VIDEO Button A second press resumes sound. Press to select TV or Video input. Press also to access and delete Closed Caption display. CH (channel) Buttons VCR, DVD, LD/CD, AUX, TV, CBL, Press to select channels. DBS, RCVR Use with volume buttons to navigate in menus. Component function buttons DBS EXIT, DBS

Summary of the content on the page No. 9

Disassembly for Service To release screen GND cables from L-Board L11 & L12 Back Cover connectors, insert a wire in both sides of connector and Remove all the screws marked with an arrow( ) pull upwards the cable, then remove the wire from the back of the Receiver. (See Fig. 6) Note: Screw configuration, type, and number Insert wire of screws vary depending on the Pull cable upwards model of the Receiver serviced and the application; various models are covered in this Manual. Use same hardwa

Summary of the content on the page No. 10

Disassembly for Service (Continued) Note: To remove the four brackets holding the degauss coil from the corners of Note: Reuse all the clampers and mounting the CRT, first remove the CRT from brackets from the degaussing coil and the cabinet, then remove the Brackets screen, and when remounting the by pressing the tab on the bracket and degaussing coil assure that is not pull upwards. These Brackets are touching the speakers, this can be included in the Degauss Coil Kit, for done by placing some

Summary of the content on the page No. 11

Back Cover Removal 4 screws at top edge 1 screw by antenna jacks 1 screw 1 screw 1 screw at lower 1 screw 1 screw at lower right corner left corner 1 screw Figure 8. Back Cover Removal - 11 -

Summary of the content on the page No. 12

D751 + 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. Otherwise, use COLD ground ( ) — Tuner shield. L826 Q804 A-BOARD D-BOARD Q002 L824 + - IC001 IC881 IC882 IC883 C840 IC002 L008 T801 IC101 Q801 IC2301 IC1801 T T U U N C3023 IC3001 N E - E R Q55

Summary of the content on the page No. 13

Purity and Convergence Procedure Adjustment is necessary only if the CRT or the Vertical Raster Shift Adjustment (Only for deflection yoke is replaced or if the setting was Models with Purity/Convergence Assembly with 4 disturbed. The complete procedure consists of: Pairs of Rings). 1. Vertical Raster Shift Adjustment. (Only for Models Apply a green pattern with a horizontal line, adjust the with Purity/Convergence Assembly with 4 Pairs Deflection Yoke so that has no tilt, then secure it. of R

Summary of the content on the page No. 14

Initial Center Static Convergence Final Convergence Procedure (see Fig.17 Connect a dot/cross hatch generator to the Receiver through Fig. 19): and tune in a signal. Observe misconvergence at Note: Vertical size and focus adjustments must be center of the screen only. completed prior to performing the convergence Adjust the R&B pole magnets; by separating tabs and adjustment. Connect a dot pattern generator to the rotating to converge blue with red. Receiver. The Brightness level should not be h

Summary of the content on the page No. 15

YH Adjustment (VR2 for Vertical dynamic Permalloy Convergence Corrector Strip convergence) (Part No. 0FMK014ZZ) 1. Apply a crosshatch pattern. 2. Adjust contrast and brightness customer controls This strip is used in some sets to match the yoke and CRT for optimum convergence. If the yoke or CRT is to obtain a correct picture. replaced, the strip may not be required. 3. With a driver Adjust VR2 (located in deflection yoke First converge the set without the strip and observe board Fig. 19) to o

Summary of the content on the page No. 16

As the yoke is tilted G vertically, the rasters R B produced by the outside guns rotate in opposite directions. Figure 17. Vertical Yoke Movement Raster produced from one of the outside electron beams Raster from the other side electron beam RG B Static convergence magnets are set for center convergence As the yoke is tilted horizontally, one raster gets larger while the other gets smaller Figure 18. Horizontal Yoke Movement For Adjustment 2 Poles(Purity) 2 Poles(VRS Adj) of DY (YHC/YV/XV) Dyn

Summary of the content on the page No. 17

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 Adju

Summary of the content on the page No. 18

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 the available Service Adjustments each address before level of the selected Service (a in Fig. 20). modifying anything. It is Adjustment (b in Fig. 20). easy to erroneously adjust the wrong item. Default Sub-Data Adjus

Summary of the content on the page No. 19

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 the available Service Adjustments each address before level of the selected Service (a in Fig. 20). modifying anything. It is Adjustment (b in Fig. 20). easy to erroneously adjust the wrong item. Default Geometry Adjust

Summary of the content on the page No. 20

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 the available Service Adjustments each address before level of the selected Service (a in Fig. 20). modifying anything. It is Adjustment (b in Fig. 20). easy to erroneously adjust the wrong item. Default PIP Adjustment


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