Canon KV-2199XDK service manual SELF-DIAGNOSTIC Circuit, +BÊovercurrentÊ»OCP¼

Page 7

KV-2199XDK

RM-952

6.SELF-DIAGNOSTIC CIRCUIT

 

 

 

 

IC301

 

IC001

 

 

 

 

 

 

IC003

 

 

Y/CHROMA JUNGLE

 

SYSTEM

 

 

 

 

 

 

MEMORY

FROM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

IK-IN

 

 

 

IO-8DAT

45

 

 

 

5 B-DAT

CRT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FROM

 

 

 

MP/

 

 

 

O-LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[+B] Q604 C

 

18

 

 

 

51

 

 

 

 

 

 

PROTECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDA 35

 

46 IO-SDAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[V]Q509/507

[+BÊovercurrentÊ»OCP¼]

Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON

 

and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven

 

verticals in a period, the unit will automatically turn off.

[VerticalÊdeflectionÊstopped]

Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001

 

shut down the power supply.

[VerticalÊdeflectionÊovercurrent]

Occurs when an overcurrent on V drive line is detected by Q507. Power supply will be

 

shut down when detect this by IC001.

[WhiteÊbalanceÊfailure]

If the RGB levels* do not balance or become low level within 5 seconds, this error will be

 

detected by IC301. TV will stay on, but there will be no picture.

 

* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)

– 7 –

Image 7
Contents Trinitron Color TV KV-2199XDK SpecificationsSET-UP Adjustments Table of ContentsDiagrams DisassemblyDiagnostic Test Indicators Self Diagnostic FunctionStopping the STANDBY/TIMER Flash Display of STANDBY/TIMER Light Flash CountHandling of SELF-DIAGNOSTIC Screen Display SELF-DIAGNOSTIC Screen Display+BÊovercurrentÊ»OCP¼ SELF-DIAGNOSTIC CircuitConnect the antenna Getting StartedInsert the batteries Into the remote Connecting optional componentsPreset the channels automatically Connecting video equipment using the ò Monitor output jacksPresetting channels automatically Presetting channelsSecuring the TV Skipping program numbers Presetting channels manuallyAdditional tasks Watching the TVChanging the on-screen display language Selecting the picture and sound modes Setting the Wake Up timerSetting the Sleep timer Customizing the picture and soundViewing your favorite channels Changing the favorite channel settingSelecting a favorite channel Self-diagnosis function Blocking the channelsTroubleshooting TroubleshootingFront panel Identifying parts and controlsRM-952 Remote Control Rear Cover Removal Bracket Removal Chassis Assy Removal Service PositionTerminal Bracket Removal Replacement of PartsDegauss Coil Removal Picture Tube Removal ∙ Removal of ANODE-CAP ∙ Removing ProceduresBeam Landing Section SET-UP AdjustmentsHorizontal and Vertical Static Convergence ConvergenceYCH TLV G2 Screen and White Balance Adjustments Focus AdjustmentAudio Block DiagramCircuit Boards Location Frame Schematic DiagramSecam Schematic Diagrams and Printed Wiring BoardsBoard Waveforms Power SUPPLY,HV Schematic Diagram of A2/2 board Board Printed Wiring BoardVM1 Cispr C3 Board Waveforms Printed Wiring BoardsTransistor SemiconductorsChassis Exploded ViewSection Electrical Parts List Description 1KV Diode 10ELS2N-TB5 Inductor 10MMH Carbon CMT,MELF Switch VM1 Sony