Sony XBR-55HX950 / XBR-65HX950 Service Manual ▷ View online
XBR-55HX950/65HX950 8
SECTION 2 - TROUBLESHOOTING
2X Blink - Main Power Error
A loss of REG12V from the power supply triggers this protect event. The
usual cause is a failure of the main switching supply. In some instances,
excessive loading on the secondary supply lines can cause the switching
regulator to stop or fail again, if a replacement board is installed.
3X Blink- DC Regulator/Audio Error/HDMI/Tuner
Several items are monitored on the Main Board. Any error detected in the
following circuits will cause the television to shut down and generate a 3X
error:
●
Loss of regulated B+ circuits
●
Audio amplifier failure
●
HDMI equalizer IC
●
Tuner demodulator circuits
In most cases, replacement of the Main Board will remedy a 3X error.
4X Blink – Balancer Error
The 4X error code is only used on models incorporating local dimming LED
4X Blink – Balancer Error
The 4X error code is only used on models incorporating local dimming LED
backlighting. If a failure occurs on the LD Board or one of the LED’s fails in
the panel the TV will shut down and display this diagnostic code. Models
using conventional non-local dimming LED backlighting do not utilize this
error code.
5X Blink - TCON Error
The 5X blink protection mode indicates a communications error between
the TCON Board and the X-Reality microprocessor on the Main Board. If
the TCON is available for replacement, replace the TCON. If the TCON is
not available, the LCD panel must be replaced since the TCON circuit is
part of the LCD Panel Assembly. In rare cases a loose or defective LVDS
cable could also be the cause.
6X Blink - Converter System Failure
If the converter circuit (located on the power supply or separate converter
If the converter circuit (located on the power supply or separate converter
board) fails to start or shuts down due to an over-voltage or over-current
condition, the unit will shut down and generate a 6X error code. The
diagnostic page labels this as a “Backlight Failure” even though the
backlights are not a source of the problem. Replacement of the Power
Supply Board should rectify this problem.
7X Blink - Temperature Failure
If the temperature inside the television becomes excessive, the temperature
sensor (located on the Main Board) notifies the TV to shut down and display
a 7X error. Excessive temperature errors will always occur when the TV
has been running a while and can be caused by excessive ambient heat or
improper ventilation of the television.
8X Blink – Not listed in Self Check
The 8X blink code is mainly used during TV software development. Look in
8X Blink – Not listed in Self Check
The 8X blink code is mainly used during TV software development. Look in
TV’s service Self Check for error code history and notice at the bottom of
the list WDT (Watch Dog Timer) error codes, in particular notice 103 HOST_
WDT. If this error code appears, check for any additional documentation on
the Sony ESI site.
10X Blink – IR Sync Transmitter Failure
A failure of the infrared sync transmitter circuits on the HEM3 Board will
cause a 10X error and replacement of this Board will usually rectify the
problem. In rare cases, the Main Board could be the source of the failure.
XBR-55HX950/65HX950 9
SECTION 2 - TROUBLESHOOTING
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location.
Before you make the service call:
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring the primary component listed for that symptom.
3D
o
i
d
u
A
r
e
w
o
P
N
A
L
2X 3X 4X
5X 6X 7X 8X
10X
No
WIFI
Dead set
No Video
Whole
Screen
Distortion
Isolated
Area
Distortion
No 3D
No Audio
Main Board
*
▲
▲
▲
▲
Power Supply
HL
HEM3
LCD Panel
TCON
▲
▲
SERVICE BULLETIN
SOFTWARE UPDATE
WLAN
BLUE Triangle: (Secondary) Possible defective part.
5. Chart Color Code.
RED DOT: (Primary) Most likely defective part.
Video
Protection Modes
4. Follow the associated flowcharts in the Training Manual to isolate the board.
Board Reference
* Immediate Shutdown After Power ON & 7X
*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN REFERENCE
LIBRARY DATABASE FOR CORRECT REPLACEMENT PARTS BASED
ON SERIAL NUMBER.
To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Servicer Portal at
http://www.sony.com/asp
.
XBR-55HX950/65HX950 10
SECTION 3 - FLOW CHARTS AND DIAGRAMS
BLOCK DIAGRAM
VIDEO 2 CVBS/COMP
POWER SUPPLY
VIDEO 1 CVBS
RF
HDMI 1
PC HD15
SWITCH
UNIT
LED
IR RX
LIGHT SENSE
LCD PANEL
HFR
TCON
BAPS
HL
L
R
ANALOG AUDIO
OUT
OPTICAL
AUDIO OUT
HDMI 3
IC4601
AMP
IC5500
HDMI
SWITCH
EQ
TUNER
EITHERNET
USB2.0
HDMI 2
HDMI 4
LVDS
AC IN
IR
TRANSMITTER
HEM3
LOGO
LED
WIRELESS
LAN CARD
IC9000
A/V
DECODER
VIDEO
PROCESS
USB2.0
USB HUB
LED DRIVE
LD
G14 (65")
CONVERTER
G15 (65")
G6D (55")
G13 (55")
L
R
IC4701
SUB-
WOOFER
AMP
MAIN BOARD
OVERALL BLOCK DIAGRAM
XBR-55HX950/65HX950 11
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO POWER
REG 12V
GND
BL_ERR
1
2
3
4
2
3
4
AC IN (N)
AC IN (H)
1
2
2
CN6102
CN6101
CN6001
PFC_OUT
2
PFC_GND
1
PRI_GND
2
PRI_VCC
1
1
2
3
5
2
3
5
CN6501
CN6502
CN6701
2
1
2
1
CN6600
CN6601
VLED_VCC
GL_CTRL
VLED_GND
LD_ERR
1~4
6~10
11
13
13
LED_ON
14
LD
BOARD
NC
CN6700
1
6
7
8
AU_GND
9
10
11, 13
12, 14
TCON_12V
AU_12V
26, 28
AU_GND
STBY3.3V
GND
TCON_ON
AC_OFF_DET
BL_ERR
PFC_ON
3
POWER_ON
GND
REG_12V
15, 17
16, 18
BL_ERR
BL_ERR
5, 6
7
5, 6
7
1
3
6
7
8
9
3
6
7
8
9
10
11, 13
12, 14
15, 17
16, 18
12, 14
15, 17
16, 18
CN6001
BAPS
G14 (65")
G6D (55")
MAIN POWER AND
CONVERTER
MAIN BOARD
PFC, PRI_VCC AND
STANDBY POWER SUPPLY
G15 (65")
G13 (55")
POWER AND CONTROL BLOCK DIAGRAM
Click on the first or last page to see other XBR-55HX950 / XBR-65HX950 service manuals if exist.