Read Sony KE-50XBR900 (serv.man3) Service Manual online
KE-50XBR900(UC)
5
DIAGNOSIS
(Reliability Self Diagnostic Display Specifications for MEDIA RECEIVER)
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.
*The flash period is based on the reliability standard.
Repair part
•
FAN
•
FAN CONNECTOR
•
SET 11V LINE
•
SET 5V LINE
DP board
•
Q1612, Q1613, Q1614
Panel Display Unit
The abnormal conditions are indicated by the following LED flashes.
Flash Count Error Display Name Error Description
Oprating Detection
Port
4
Fan Error
Error detected for
Detects Low when fan
IC6200 pin #2
fan in Media
function normally.
Receiver box.
Detects High when Fan stops
abnormally
abnormally
8
Digtal OVP
OVP for DD Con- Detects High when normal.
IC5210 pin #49
verter on DP board Detects Low when abnormal.
9
Panel Error
Panel malfunction Detects during communication
detected with
detected with
panel.
*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.
*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”
Powering down”
every about 0.3s
about 3s
• Timing of LED blink (example of 4 times blink)
ON
OFF
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