Sony KLV-26NX400 / KLV-32NX400 / KLV-32NX500 / KLV-40NX500 (serv.man2) Service Manual ▷ View online
– 4 –
KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500
RM-GA018
1-5. Lead Free Information
The circuit boards used in these models have been processed
using Lead Free Solder. The boards are identified by the LF
logo located close to the board designation.
The circuit boards used in these models have been processed
using Lead Free Solder. The boards are identified by the LF
logo located close to the board designation.
The servicing of these boards requires special precautions. It
is strongly recommended to use Lead Free Solder material in
order to guarantee optimal quality of new solder joints. Lead
Free Solder is available under the following part numbers:-
is strongly recommended to use Lead Free Solder material in
order to guarantee optimal quality of new solder joints. Lead
Free Solder is available under the following part numbers:-
Due to high melting point of Lead Free Solder, the soldering
iron tip temperature needs to be set to 370 degrees
centigrade. This requires soldering equipment capable of
accurate temperature control coupled with a good heat
recovery characteristics.
iron tip temperature needs to be set to 370 degrees
centigrade. This requires soldering equipment capable of
accurate temperature control coupled with a good heat
recovery characteristics.
For more information on the use of Lead Free Solder,
please refer to
please refer to
http://www.sony-training.com
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Figure 2: LF logo
Figure 3: LF logo on circuit board
– 5 –
KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500
RM-GA018
SECTION 2
SELF DIAGNOSTIC FUNCTION
2-4. LED Pattern
When safety shutdown occurs, Standby LED display reports the
cause by using the lightning patterns as indicated below.
cause by using the lightning patterns as indicated below.
Example:
The figure above shows LED display when
SHUTDOWN is caused by Balancer Error. It repeats
flashing for a specified number of times in 0.5sec/
cycle and has a 3 seconds interval of lighting off.
Please note that a 3 seconds interval of lighting off
is fixed regardless of abnormal state types.
SHUTDOWN is caused by Balancer Error. It repeats
flashing for a specified number of times in 0.5sec/
cycle and has a 3 seconds interval of lighting off.
Please note that a 3 seconds interval of lighting off
is fixed regardless of abnormal state types.
3.0 sec
3.0 sec
0.5 sec
0.5 sec
2-1. Overview of Control Buttons
2-2. LED Display Specification
2-3. LED Display Control
PROG
Power
Programme
Volume
Input select/
Enter
Enter
Menu
Remote
Sensor
Picture Off/
Timer indicator
Standby
indicator
Power
indicator
LED Typ e
Description
Remark
Status
Display
Power LED
Remark
POWER
Green: LED
Green lights at power ON.
STANDB
Timer
Y
Red: One LED
Red lights during standby.
Orange
: One LED
: One LED
Orange lights
during Timer activation.
during Timer activation.
POWER ON Green lights
OFF
in a normal state.
STANDBY
OF
OFF
F
Red lights
Red flashes
Microcomputer is
in a sleep state.
Failure
Classify the trouble
causes by the no.
of red blinking.
causes by the no.
of red blinking.
Standby LED
Microcomputer is
– 6 –
KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500
RM-GA018
Blinking times
Error
Countermeasure
(Replace either/all according to sequence)
2
Main Power Error
1) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
2) BAA board.
G2HE Unit(40”) board.
2) BAA board.
3
DC_ALERT 1/ Audio Error/
1) BAA board.
Motionflow Error
2) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
3) TCON.
4) Speaker.
4) Speaker.
4
Balancer Error
1) Inverter board.
2) Panel.
3) Power Unit(26”), G2LE Unit(32”),
2) Panel.
3) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
4) BAA board.
5
T-CON Error / Panel ID NVM Error
1) T-CON.
2) BAA board.
3) LVDS Cable.
4) Power Unit(26”), G2LE Unit(32”),
2) BAA board.
3) LVDS Cable.
4) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
6
Backlight Error
1) Inverter board
2) Power Unit(26”), G2LE Unit(32”),
2) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
3) BAA board.
7
Temp. Error
1) BAA board.
2) Power Unit(26”), G2LE Unit(32”),
2) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
2-5. Standby LED Error Display and Board Replacement Order
Perform below countermeasures according to Standby LED blinking times.
Note:-
1: Each of the above blinking repeats 3 seconds.
2. Countermeasure is list out by priority.
1: Each of the above blinking repeats 3 seconds.
2. Countermeasure is list out by priority.
– 7 –
KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500
RM-GA018
2-6. Triage Chart
No Video
No Video
No Video
No Tuner
Tuner OK
No HDMI
No Audio
BL OK
No BL
BL OK
Video OK
Video 1-3
OSD OK
No OSD
Bad
BAA board
H2LR board
H2LS
HLR3 board
SW1board
Power Unit (26")
G2LE Unit (32")
G2HE Unit (40")
T-con board
Speaker unit
RF module
Panel module
FFC cable
Joint connector
Problem
No Power
BAA board
Balancer
TCON, Panel ID
Inverter
Temperature
No Power
BAA board
BAA board
BAA board
BAA board
BAA board
BAA board
BAA board
Doubtful part
Few possibility
No Power
Symptom (dead set)
Video distored or miss
ing
Reference
6Blinks
7Blinks
2Blinks
3Blinks
4Blinks
5Blinks
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