SONY LCD - KDL-22 EX320 _ KDL-24 EX320_ KDL-26 EX320_ KDL-32 EX320_ KDL-40 EX320_ KDL-46 EX320_ KDL-55 EX320_TROUBLESHOOTING

APPLICABLE TO ALL {KDL-** EX*** MODELS}

FLOW CHART

	Flow chart
Start
Does the power LED stay ON, when TV is switched ON?	No	See No Power
Yes
Is the standby LED blink?	Yes	See standby LED blink.
No		See No picture / No sound.
Is picture and sound OK?	No	See No picture / No sound
Yes
Do the buttons on the TV & Remote control work properly?	No	See TV / Commander button malfunction.
Yes
Is network connection OK?	No	See Can’t connect network.
Yes
Is the skype function OK?	No	See Skype malfunction.
Yes
Is the HDD Rec function OK?	No	See HDD Rec malfunction.
Yes
End

NO POWER

		No power
Check STBY 3.3V at pin 10 of CN6001 on G* Board.	Not good	Replace between G* Board to B* board Harness.	Not good	G* Board
Ok		Ok.
B* Board.		Harness .

STANDBY LED BLINKS

		2 Tmes blinking
Check REG12V at pins 2/3 of CN6001 on B* Board.	12V not good	Replace between G* board to B* board Harness.	Not good	G* Board.
12V OK		Ok
B* Board		Harness.

	3 times blinking
Check D+1.2V at pin 14 of IC6005 on B* Board.	Not good	F6001, IC6005 [B* Board].
Ok
Check +3.3V MAIN at pins 9/10 of CN9003 on the B* Board.	Not good	F6003, IC6003 etc [B* Board]
Ok
Check speaker impedance at SP connector.	Not good	Speaker
Ok
Check AUDIO +12.5V, at pin 8/9 of CN6001 on the B* Board.	Not good	G* Board.
Ok
Check +12.5V at F4601 on the B* Board.	Not good	F4601, IC4601, etc. [B* Board]
Ok
IC4601, etc		FF/BE communication.

	5-time blinking
Check PANEL_VCC at pin 1 of CN6001 on the B* Board.	Not good	G* Board.
Ok. (about 5v: 22” model and about 12V; ex.22” model)
Replace the Harness between G* and panel.  (exclude 60Hz panel model)	Symptom improvement.	Harness
Not good
Replace the LVDS harness.	Symptom improvement.	LVDS harness.
Not good
RGB sensor Change.	Symptom improvement	RGB Sensor. {Only for ‘Y’ models)
Panel 9T-Con) change	Not good	B*board.
Symptom improvement
Panel (T-Con)

	6-time blinking
Check BL_ERR  at pin 7 of CN6002 on the B* Board.	Under 2.65V	B* Board.
Over 2.65V
Change G* Board.	Symptom improvement.	G* Board.
Not good
Panel

	6-times blinking [Temperature]
Setting circumstance is OK?  Temperature, Ventilation, etc?	No	Set to an other location.
Yes
Change B* Board and aging a few hours.	No	Panel.
Ok
B* Board.
	8-times blinking
If the symptom improved by changing the WIFI module.	No	B* Board.
Yes
WIFI Module.

				No picture
Press Home key XMB {Menu} displayed?	No	PANEL_VCC at pin 1 on CN6001 B* Board.	Yes	Check BL_ON at pin 6 of CN6002 on the B* Board	BL_ON: H	Replace the LVDS Harness.	Not good	LCD panel 9T-Con)
Yes		No		BL_ON:L		Ok
B* board		G* Board.		Replace Harness between G* Board to B* Board.	Not good. (harness (G* to B*)	Harness (LVDS)
				Ok
				Change B* Board.	Not good	G board.
					Ok
					B* board.

		No sound
Check the speaker Setting.	Audio system	Change to TV speaker.
Check speaker Harness	Not good	Replace the B* Board.	Ok	B* board.
Ok		Not good
Speaker harness		Speaker

		Button malfinction on TV
Replace the harness between B* to Switch Unit	Ok	Switch Unit change.	Ok	Switch unit
Not good		Not good
Harness		B*Board.

		TV isn’t controlled by remote commander
Green LED light at power indicator.	Ok	Green LED blinks at power indicator when using commander near sensor’s window.	Ok	Mechanical (eg: bezel)
Not good		Not good
Check the harness between the B* Board and the HLR board.	Ok	Sensor is broken.
Not good
Exchange the harness	Ok	Harness.
Not good
Exchange the HLR Board.	Ok	HLR board.
Not good
B* Board.

		Wired network on the TV
Connection result Cable Connection.	Not good	Check the Ethernet Cable	Not good	Ethernet cable.
Ok		Ok
		B* board
Connection result Local access	Not good	Wired Set-Up IP address setting.	Auto	Check Local router DHCP server.
Ok		Manual
		Check IP address and Local router setting.
Connection result Internet access.	Not good	Proxy setting.

	Wireless network on the TV
Error Message appears when the Wireless Network is connected?	USB Dongle.
No
Is the radio field strength too weak or even No Signal?	Yes	Access Point.
No
B* Board

	Wireless network on the TV
Error message appear when the Wireless Network is selected?	Yes	Wireless Module. Harness.
No
Is radio field Strength too weak or even no Signal?	Yes	Access point.
No
B* Board.

		HDD Rec malfunction
HDD is connected to the appropriate USB port?	No	Connect to appropriate port.
Yes
USB Hub is inserter in between the USB port and HDD?	No	Is the drive size larger than 32GB and Smaller than 2TB??	No	Only 32GB ~ 2TB is supported.
Yes		Yes
USB hub is not supported.		All the setups and restrictions listed in iManual are cleared?	No	Check the iManual.
		Yes
		B Board