Sony XBR-55X900H Service Manual page 15

2021/04/27 23:25:57 (GMT+09:00)
Triage Chart (NX/NXB)
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 Color Code
RED DOT: Most likely defective part
BLUE TRIANGLE: Secondary possible defective part
GREEN SQUARE: Tertiary possible defective part
BLACK TEXT: Board that may correct the symptom
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
Reference
2 3 4
Main Board B* Board ■
p l
■
Power Board G* Board l p
H* Board
Receiver Board
Speaker
p
Wifi & BT Module
Local
LD* Board ▲
Dimming Board
V By One FFC
Tcon
LCD Panel ●
Power Power Panel
Problem
Audio LD
SAFETY NOTES
Symptoms - no shutdown
Error log record only
TU_
TU_ TCO
DEM
5 6 7 8 DEM N_ER
OD_I
OD R
2C
■ ■
l l p
■ ■
▲
p p
l l
▲ ▲
l ■
Panel Panel
(Communic ation) (Bac klight) TEMP 4KBE
Tc on
SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
No
Power
Stationa
4KP TEM
No White Power
FRCT AUD EARC AMB
ry
Q_E P_ER
LED & does not
C_I2 _ERR _ERR _ERR c olored
RR_I R_I2 reponse to remote
C _I2C _I2C _I2C lines or
(Dead Set)
2C C
dots
▲
l p p
l
● p
p
p
l
TROUBLESHOOTING SERVICE ADJUSTMENT
Video
Remote Network Audio
- missing or distorted
Cannot
No video
NO RF No video all c onnec t to
One of No Remote No Audio
input Inputs Wireless
Inputs
Network
l l l p p
▲
l
l
p
p
■
■
DIAGRAM
Smart Core Bluetooth (BT)
Bluetooth / One Step
Smart Core no LED (Set
Remote (OSR) c an't
is still alive)
c onnec t
l p p
p
l
l
l
15
HANDLING GUIDE
SYS SET