Sony KDL-32R435A / KDL-40R485A / KDL-46R485A / KLV-24R402A / KLV-24R422A / KLV-32R402A / KLV-32R407A / KLV-32R422A / KLV-40R452A / KLV-40R457A / KLV-40R472A / KLV-46R452A / KLV-46R472A Service Manual ▷ View online
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3-10. IR – Troubleshooting flow
TV cannot be controlled
TV cannot be controlled
by remote commander
OK
G
LED bli k
t P
i di
t
OK
NG
Green LED light
at Power LED indicator
Green LED blinks at Power indicator
when using commander
near sensor’s window
OK
NG
Mechanical
(ex. Bezel, Guidelight)
Confirm Harness connection
OK on BB Board and HB Board
Harness loose connection
OK
Change Harness
Harness NG
NG
OK
Change Harness
Harness NG
NG
Change HB board
HB board NG
OK
Change BB board
NG
53
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3-11. Switch Unit Buttons – Troubleshooting flow
Switch Unit NOT FUNCTIONING
*VOLTAGE LEVEL FOR EACH PRESSED BUTTON
KEY
Voltage
(average)
(average)
Voltage range
NG
Check Wire Harness
And Connector
Connectivity?
Change Wire Harness
And connect properly
(average)
-
0.000
0.00000 – 0.82353
+
1.114
0.83451 – 1.37255
Check 3.3V
in Pin2, CN1
OK
NG
Check 3.3V in Pin 1,
CH/Input
1.693
1.383529 – 2.03137
No Input
2.420
2.04235 – 2.80000
in Pin2, CN1
(Switch Unit)
OK
OK
CN5000 on
BB Board
Change Switch Unit
NG
*Check
Pin 1 Voltage Level
in CN1
OK
Change BB Board
NG
54
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3-12. RTC Troubleshooting Flow (SU model only)
Time in Photo Frame does not memorize
after AC off on.
[self diagnosis] RTC_ ERR
> 1 ?
RTC IC NG
Yes
No
SW NG
Change BB Board
55
ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
SECTION 4
SERVICE ADJUSTMENTS
4-1. Accessing Service Mode
1) Go to TV standby condition by remote commander.
2) Press “i+ (info)”, “5”, “Volume +” then “TV power” on remote.
3)
2) Press “i+ (info)”, “5”, “Volume +” then “TV power” on remote.
3)
You can see Service Mode on display.
4-2. Accessing Software Version
1) Press (Enter) or button on Remote to enter status information.
2
4
Remote Commander
1
3
Remote Commander
Screen Sample
Service Mode
Status Information
>>
Self diagnosis history
>>
NO SIGNAL MUTE
<[
Off
]>
2) Press (Enter) button on Remote to back to Service Mode.
_
_
[
]
TUNING SYSTEM
<[
AUTO
]>
Low of HPD
<[
5
]>
UART Selection
<[
CLI
]>
SERIAL NUMBER EDIT
MODEL NAME EDIT
MODEL NAME EDIT
TEST RESET
<[
Off
]>
[</>]Set [Home]Exit
Screen Sample
Remote Commander
56
Service Mode Screen Sample
Click on the first or last page to see other KDL-32R435A / KDL-40R485A / KDL-46R485A / KLV-24R402A / KLV-24R422A / KLV-32R402A / KLV-32R407A / KLV-32R422A / KLV-40R452A / KLV-40R457A / KLV-40R472A / KLV-46R452A / KLV-46R472A service manuals if exist.