Self-Diagnostic Function - Sony KDF-37H1000 Service Manual

The units in this manual contain a self-diagnostic function. If an error occurs, the POWER/STANDBY will automatically begin to fl ash. The number of
times the LED fl ashes translates to a probable source of the problem. A defi nition of the POWER/STANDBY fl ash indicators is listed in the instruction
manual for the user's knowledge and reference. If an error symptom is diffi cult to reproduced use the Remote Commander to display the record that is
stored at the internal NVM to specify the cause of the failure.
Diagnostic Test Indicators
When an error occurs, the POWER/STANDBY will fl ash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the POWER/STANDBY will identify the fi rst of the problem areas. If the errors occur simultaneously, the one that corresponds to the fewest
fl ashes is identifi ed fi rst.
Results for all of the following diagnostic items are displayed on screen. (No error has occurred if the screen displays a "0".)
Number of times
LED indicator
flashes
1
2
3
4
5
6
7
8
9
DISPLAY OF POWER/STANDBY OR LAMP LED FLASH COUNT
Flashes red for Lamp error
- 4 Flash is not used for self-diagnosis
- Example
Diagnosis
LowB Error
Lamp Cover
KDF-37H1000

SELF-DIAGNOSTIC FUNCTION

Diagnosis Item
Lamp Error
OVP
LowB Error
Not Used in this model
HV Detect
Lamp Cover/ Lamp Position
Temp Error
Audio Error
Fan Error
TIMER
Number of times LED Flashes
3 times
6 times
LED ON : 0.3sec
LED OFF : 0.3sec
Probable Cause
Lamp not seated properly
(Note: The lamp LED will flash red when
this error occurs, not the Power LED)
10.5V is high on B Board
10.5V is low on B Board
Ballast is not working
The Lamp cover is not closed securely.
High Temperature or sensor connection
DC error on U Board
Fan is not working properly
TIMER LAMP POWER
LAMP POWER
LED OFF
3.0sec
LED OFF
3.0sec
Self Diagnosis
Supported model
Screen
Flashes red for all except Lamp error
KDF-37H1000
8