Sony XR-55A90J User Manual

22
1.2 No Power U-Com Failure
P-on u-com control signal path summary
START
yes
Check POWER_ON
CL419 or R470 Voltage.
Is the voltage >3.0V?
Try AC Off and On after few minutes.
If #pin10 keep Low, change IC401.
If #pin10 goes High few seconds and downs to
Low, Check 12.7V_MAIN Line (from Power board).
no
yes
Check 12V_MON
R462 Voltage.
Is the voltage >2.6V?
no
yes
yes
Change IC401
no
Check DC_OFF_DET
CL414 or R465 Voltage.
Is the voltage >3.0V?
Check P_ON_#1
CL418 or
P-on u-com #pin12 (IC401)
is >3.0V?
Change IC401
no
Continue next page…
Check VDD
C442 Voltage.
Is the voltage >3.0V?
Check 3.3V_STBY Line (C1708, CN1700 #9pin)
no
Check TYPE_DET
CL408 or R451 Voltage.
Is the voltage 2.6±0.2V?
no
yes
Check OPWRSB
CL411 or R460 Voltage.
Is the voltage 0V?
SOC
Muffin 5 problem
IC1000 # AP17 OPWRSB
no
yes
Check PGOOD_1
CL413 or R456 Voltage.
Is the voltage >3.0V?
1.3 No POWER - DDCON/LDO
Check 0.8V_M5_CORD DCON
(IC804)
no
yes
Type Detection Circuit problem.
Check TYPE_DET Line (R445, R446).
Check 12.7V_MAIN Line
and 12.7V_AUDIO Line
(from Power board).
Check “AC_OFF_DET_OUT”
(CL404 or CL5221 from IC5000)
Check “AC_DET_IN”
(JL1707, R1704 or CN1700 #16pin
from Power board)
TROUBLESHOOTING
SAFETY NOTES SELF DIAGNOSTIC FUNCTION TROUBLESHOOTING SERVICE ADJUSTMENT DIAGRAM HANDLING GUIDE
22
SYSSET
2021/02/0423:38:48(GMT+09:00)

Sony XR-55A90J Specifications

General

Screen Type	oled
Color	black
Wall Mount	300mm x 300mm
Tuner	digital
Screen Size	54.6 inches, 55 inches
Resolution	4k (2160p)
Refresh Rate	120hz
Closed Captioning	yes
Motion Enhancement	x-motion clarity
HDR	yes
HDR Format	hdr 10, hybrid log-gamma (hlg), dolby vision
Built-In Speakers	true, front firing
Surround Sound	dts digital surround
HDMI Ports	4
HDMI 2.1 Ports	2
HDMI ARC Ports	yes
USB Ports	3
USB 2.0 Ports	2
Ethernet	yes
RF Antenna	yes
Bluetooth	true, 4.2
Network	built-in wi-fi
Digital Optical Audio Outputs	1
Component Video Inputs	0
Composite Video Inputs	1
DVI	0
SmartTV	google tv
Streaming Services	paramount+, disney+, hbo max, hulu, netflix, prime video, showtime, starz, sling tv, youtube, peacock
Smart Applications	amazon alexa, google assistant
Voice Assistant	amazon alexa, google assistant
Remote Control	voice control
3D	no
Power Consumption	185 kilowatt hours
Depth with Stand	12.5 inches
Height with Stand	28 inches
Width with Stand	50.5 inches
Net Weight with Stand	44.8 pounds
Depth without Stand	1.62 inches
Height without Stand	28 inches
Net Weight without Stand	41 pounds