Sony KE-50XBR900 - 50" Xbr Plasma Wega™ Integrated Television Service Manual page 6

DIAGNOSIS
(Reliability Self Diagnostic Display Specifications for MEDIA RECEIVER)
The abnormal conditions are indicated by the following LED flashes.
Flash Count Error Display Name Error Description
4 Fan Error
8 Digtal OVP
9 Panel Error
1) *Operation count is based on WDT.
*For flashes, the Power/Standby LED flashes in red.
*The flash period is based on the reliability standard.
*A failure part can be expected by the number of times of blink of LED.
*When two failures occur, the failure item generated previously is detected.
*When failure occurs simultaneously, an item with little number of times of blink is detected.
*In other than "Fan Error", the unit is in standby state and blink LED at intervals of regulation.
In "Fan Error", the unit is in a standby state after display for 1 minute about the message of "Fan problem –
Powering down"
• Timing of LED blink (example of 4 times blink)
ON
OFF
every about 0.3s
Oprating Detection
Error detected for Detects Low when fan
fan in Media function normally.
Receiver box. Detects High when Fan stops
abnormally
OVP for DD Con- Detects High when normal.
verter on DP board Detects Low when abnormal.
Panel malfunction Detects during communication
detected with panel.
about 3s
Port Repair part
FAN
IC6200 pin #2
FAN CONNECTOR
SET 11V LINE
SET 5V LINE
IC5210 pin #49 DP board
Q1612, Q1613, Q1614
Panel Display Unit
KE-50XBR900(UC) 5