Troubleshooting - Sony KD-49X9 F Series Service Manual

Triage Chart
Before you make the service call...
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring all the boards and cables listed for that symptom.
4. Follow the troubleshooting charts in the technical guides to isolate the board.
5. Chart Colour Code
RED DOT: Most likely defective part
BLUE TRIANGLE: Secondary possible defective part
BLACK TEXT: Board that may correct the symptom
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
Reference
2 3 4 5
p l p p
B* Board
l p p p
G* Board
H* Board
p
Speaker
Tuner board
Wifi & BT
Module
l
LD* Board
V By One
p
FFC
l
Tcon
p l
LCD Panel
Panel
(Comm
Power Power LD
unicatio
n)
Problem
Audio BCM

TROUBLESHOOTING

Symptoms - no shutdown
Error log record only
TU_D TCON FRCT
6 7 8
EMOD _ERR C_I2C
p l l
p p
l
l
p
l
l
Panel
(Backli TEMP 4KBE
ght)
SECTION 3
No
Power - missing or distorted
No White Power Stationary
AUD_ 4KPQ
LED & does not colored
ERR_I _ERR
reponse to remote lines or
2C _I2C
(Dead Set) dots
p p
l
l
p
p
p
p
l
Video
Remote Network Audio
No No
Wireless
video NO RF video No
can't
One of input all Remote
connect
Inputs Inputs
l l l p p
l
l p
l
p
p
p
p
Smart Bluetooth
Core (BT)
Smart Bluetooth /
Core no One Step
No
LED (Set Remote
Audio
is still (OSR) can't
alive) connect
l p p
p
l
l
l
13