Self Diagnosis - Sony KDL-40Z5500 Service Manual

The identification of errors within the EX2L chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the
event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous flash-
ing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device
number will be displayed through the LED (Series of flashes which must be counted).
LED Error Codes and Countermeasures
B n i l k n i g i t m e s
2
5
6
7
8
10
1 2
13
1 4
EX2L SELF DIAGNOSTIC SOFTWARE
E r r r o
DC_DET
DC_ALERT
BACKLIGHT
INTERNAL TEMP
A UDIO
DIGITAL FE/DE
HFR
BALANCER
- T C O N
C o u t n
Replace either/both z Power board
(G6NS (40"), Power Unit (G7NS)
(46"/52")
z BA board
Replace BA board.
z D1N(40"/46"), D2N(40"/46"),
Replace either/all
D3N(52"), D4N(52")
z BA board
z Panel
z Power Board
(G6NS (40"), Power Unit (G7NS)
(46"/52"))
z BA board
Replace
z Power board
Replace either/all
(G6NS (40"), Power Unit (G7NS)
(46"/52")
z BA board
z Speaker
z BA board.
Replace
z Panel
R e p a l c e i e h t r e b / o h t
z BA Board
z BA board.
Replace either/all
z Power board
G6NS (40"), Power Unit (G7NS)
(46"/52")
z D1N(40"/46"), D2N(40"/46"),
D3N(52"), D4N(52")
z Panel.
R e p a l c e
z BA Board
-  -
r e m e a s u e r