Toshiba
50A60, 50A50 55A60
service manual
DEF/POWER Board PB9451
Parts list
Circuit Block Diagram
SIGNAL/CON Board PB9450
Recall Power Timer TV/VIDEO
Replacement of the CRT
Self Diagnostic Function
Accessories
Mechanical Disassembly
Adjustment Procedure
B Focus Adjustment
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DEF/POWER BOARD PB9451
BOTTOM (FOIL) SIDE
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Page 39
Page 41
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Page 39
Page 41
Contents
50A60, 50A50
Table of Contents
General Adjustments Safety Instructions
RAY Radiation Precaution
Safety Precaution
Product Safety Notice
CRT Assembly Replacement and Mounting
Leakage will Occur
Servicing Precautions
Adjusting Procedure in Replacing CRT
Picture Tube Components Adjustment
B Focus Adjustment
Tilt Adjustment
Centering Adjustment
Location of Screen and Focus VR’S
Screen VR Focus VR
Replacement of the CRT
Replacement of High Voltage Cable
Service Mode
Entering to Service Mode
Displaying the Adjustment Menu
KEY Function in the Service Mode
Selecting the Adjusting Items
Adjusting the Data
Exit from Service Mode
Self Diagnostic Function
Electrical Adjustment
Adjustment Procedure
Height
HIT
Width
WID
Convergence Adjustment
KEY Function Convergence Adjustment
Centering Adjustment
Picture Position Adjustment
CRT Replacement
Replacing Convergence Unit
HOW to Clean Lens and Mirror
HOW to Clean Screen
Screen and Mirror Alignments
Assembling Front Screen
Circuit Checks
High Voltage Check
Anode Voltage Measuring Method
FS Circuit Check
Specific Informations Setting & Adjusting Data
Safety Instructions
Service Mode Adjusting Items and Data in the Service Mode
Circuit Checks
Power Volume T S Exit Demo Menu
TV/VIDEO
Reset
Recall Power Timer TV/VIDEO
Light
Mute
Programming Channel Memory
TV/CABLE function
Circuit Block Diagram
Mechanical Disassembly
Capacitors
Chassis Replacement Parts List
OMF
Specific Informations General Adjustments
Specific Informations General Adjustments
Specific Informations General Adjustments
Resistors
Specific Informations General Adjustments
Specific Informations General Adjustments
Specific Informations General Adjustments
Specific Informations General Adjustments
Specific Informations General Adjustments
Coils & Transformers
Semiconductors
TFB3086AD
IC, MC14053BFEL
Miscellaneous
Picture Tube
PC Board Assemblies
Tuner
Accessories
Cabinet Parts
SIGNAL/CON Board PB9450
Bottom Foil Side
DEF/POWER Board PB9451
BACK/AV Board PB9452
DIGI-CONV Board PB9453
DIGI-COMB Board PB9398
Drive Board PB9454-1
Drive Board PB9454-3
Drive Board PB9454-2
FRONT-IN Board PB9454-9
FRONT-CONV Board PB9454-5
REM Board PB9454-10
SVM Board PB9454-6 FRONT-CON Board PB9454-8
Terminal View of Transistors
Memo
Specifications Representative 50A60
Toshiba Corporation
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