Toshiba
50A50 55A60, 50A60
service manual
SIGNAL/CON Board PB9450, Bottom Foil Side
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
Page 39
SIGNAL/CON BOARD PB9450
BOTTOM (FOIL) SIDE
– 41 –
– 42 –
Page 38
Page 40
Image 39
Page 38
Page 40
Contents
50A60, 50A50
Table of Contents
Product Safety Notice
General Adjustments Safety Instructions
RAY Radiation Precaution
Safety Precaution
Leakage will Occur
CRT Assembly Replacement and Mounting
Adjusting Procedure in Replacing CRT
Servicing Precautions
Centering Adjustment
Picture Tube Components Adjustment
B Focus Adjustment
Tilt Adjustment
Screen VR Focus VR
Location of Screen and Focus VR’S
Replacement of High Voltage Cable
Replacement of the CRT
KEY Function in the Service Mode
Service Mode
Entering to Service Mode
Displaying the Adjustment Menu
Self Diagnostic Function
Selecting the Adjusting Items
Adjusting the Data
Exit from Service Mode
Adjustment Procedure
Electrical Adjustment
WID
Height
HIT
Width
Picture Position Adjustment
Convergence Adjustment
KEY Function Convergence Adjustment
Centering Adjustment
Replacing Convergence Unit
CRT Replacement
Assembling Front Screen
HOW to Clean Lens and Mirror
HOW to Clean Screen
Screen and Mirror Alignments
FS Circuit Check
Circuit Checks
High Voltage Check
Anode Voltage Measuring Method
Circuit Checks
Specific Informations Setting & Adjusting Data
Safety Instructions
Service Mode Adjusting Items and Data in the Service Mode
TV/VIDEO
Power Volume T S Exit Demo Menu
Mute
Reset
Recall Power Timer TV/VIDEO
Light
TV/CABLE function
Programming Channel Memory
Circuit Block Diagram
Mechanical Disassembly
Chassis Replacement Parts List
Capacitors
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
TFB3086AD
Semiconductors
IC, MC14053BFEL
Miscellaneous
PC Board Assemblies
Picture Tube
Tuner
Cabinet Parts
Accessories
Bottom Foil Side
SIGNAL/CON Board PB9450
DEF/POWER Board PB9451
BACK/AV Board PB9452
DIGI-COMB Board PB9398
DIGI-CONV Board PB9453
Drive Board PB9454-3
Drive Board PB9454-1
Drive Board PB9454-2
FRONT-CONV Board PB9454-5
FRONT-IN Board PB9454-9
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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