CONTENTS SAFETY PRECAUTIONS................................2 SERVICE HINTS ..................................3 ADJUSTMENT PROCEDURE AND FACTORY SETTINGS .....................4 WAVEFORM PATTERN TABLE ...............................5 ALIGNMENT SETTINGS................................6 BLOCK DIAGRAMS ..................................7 PARTS LOCATION .................................13 REPLACEMENT PARTS LIST ..............................14 SCHEMATIC DIAGRAMS ...............................38 CONDUCTOR VIEWS................................49 SAFETY PRECAUTIONS GENERAL GUIDE LINES It is advisable to insert an isolation transformer in the X-RADIATION WARNING a.c.
SERVICE HINTS How to remove the rear cover 1. Remove the 10 screws as shown in Fig.2. SCREWS SCREWS Fig.2. LOCATION OF CONTROLS DP-Board G-Board DG-Board L-Board DF-Board Focus L-Board H-Board Screen U-Board HA-Board A-Board H-Board D-Board Z-Board Fig.3.
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HOW TO MOVE THE CHASSIS INTO SERVICE POSITION Remove the 3 screws (B) and (C) shown in Fig.5. / Fig.6., and remove the 2 speakers from the cabinet. Affix the support strap supplied in the service pack (TZS1EK002) using a back cover screw, into the top right-hand cabinet rib (A) shown in Fig.4.
To get into Self-Check mode press the down (-/v) button on the customer controls at the front of the TV set, at the same time pressing the STATUS button on the remote control, and the screen will show: - Factory use only O.K. Sum : **** O.K. TX-28PB50 TX-32PB50/PB50N TX-36PB50/PB50N O.K. OPTION 1 : O.K. OPTION 2 : O.K. OPTION 3 : O.K.
WAVEFORM PATTERN TABLE Note: All waveforms have been taken using a standard colour bar pattern. Video Out Luminance In Vert Drive IC3001 Pin 56 IC1315 Pin 37 A44 Pin 24 10mS 64µS 32µS VFLB H - Drive Vert Out IC451 Pin 6 A3 Pin 10 IC451 Pin 3 32µS...
ALIGNMENT SETTINGS (The figures below are nominal and used for representative purposes only.) Set the Bass to maximum position, set the Treble to minimum position, press the down button (- / v) on the customer controls at the front of the TV and at the same time press the INDEX button on the remote control, this will place the TV into the Service Mode.
PARTS LOCATION NOTE: The numbers on the exploded view below refer to the mechanical section of the Replacement Parts List. DF BOARD ONLY USED ON 32” & 36” MODELS.
REPLACEMENT PARTS LIST Important Safety Notice Components Identified by mark have special characteristics important for safety. * When replacing any of these components, use only manufacturers specified parts. In case of ordering these spare parts, please always add the complete Model-Type number to your order.
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Cct Ref Parts Number Description Cct Ref Parts Number Description IC2706 PQ1CG21H2RZ REGULATOR D805 MA2240-BLFS DIODE IC2707 AN7808LB 8V REGULATOR D809 MA2082-ALFS DIODE IC2708 SI-8090K POWER SUPPLY D811 MA2082-ALFS DIODE IC2709 PQ1CG21H2RZ REGULATOR D819 ERA22-04V3 DIODE IC3001 CXA2069Q-TL SWITCHING D820 ERA22-04V3 DIODE IC3002...
SCHEMATIC DIAGRAMS FOR MODELS TX-28PB50 TX-32PB50/PB50N TX-36PB50/PB50N (EURO-7 CHASSIS) IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturer's specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise.