Error codes, self diagnostic function, Power supply and Deflection circuit diagram - Sony Trinitron TV - KV-SW292M
KV-SW292M50 RM-GA002 India SCC-V06T-AKV-SW292M50 RM-GA002 Thailand SCC-V39F-A
KV-SW292M61 RM-GA002 GE SCC-V44C-A
KV-SW292M80 RM-GA002 India SCC-V06S-A
KV-SW292N60 RM-GA002 Philippines SCC-V41C-A
SMPS and Deflection schematics [Click on the schematics to magnify]
A-Board
Processor and Audio
RGB and Beam landing correction
SELF
DIAGNOSTIC FUNCTION
The units in
this manual contain a self-diagnostic function. If an error occurs, the STANDBY
Indicator will automatically begin to flash.
The number of times the STANDBY Indicator flashes translates to a probable source of the problem.If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
The number of times the STANDBY Indicator flashes translates to a probable source of the problem.If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
DIAGNOSTIC
TEST INDICATORS
When an error occurs, the STANDBY Indicator will flash a number of times to indicate the possible cause of the problem. If there is more than one error, the Indicator will identify the first of the problem areas. Result for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.
When an error occurs, the STANDBY Indicator will flash a number of times to indicate the possible cause of the problem. If there is more than one error, the Indicator will identify the first of the problem areas. Result for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.
[+B over current OCP] Occurs when an over current on the +B(135V) line is detected by pin 97 of IC001 (A board). If the voltage of pin 97 of IC001 (A board) is more than 4V, the unit will automatically go to standby.
[V-PROTECT] Occurs when an absence of the vertical deflection pulse is detected by pin 116 of IC001 (A board).
[IK AKB] If the RGB levels* do not balance within 15 sec after the power is turned on, this error will be detected by IC001 (A board). TV will stay on, but there will be 5 times LED blinking.
Power supply not good (+5V) for video processor: Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due to improper power supply to IC001. TV cuts off high voltage power of anode CRT. No picture will be detected. eg: IC602, IC604 go faulty.
