Monday, November 16, 2015

SONY KLV-26NX400 - SONY KLV-32NX400 - SONY KLV-32NX500 - SONY KLV-40NX500 SERVICE MODE LED BLINKING CODE AND TROUBLESHOOTING

SONY KLV-26NX400  - SONY KLV-32NX400 

 SONY KLV-32NX500 - SONY KLV-40NX500 

SERVICE MODE LED BLINKING CODE AND TROUBLESHOOTING 

SELF DIAGNOSTIC
Standby LED Error Display
Accessing Self Diagnostic Menu
1. While TV on standby mode, press the following sequence on the Remote commander.
< Display--> <5>--> <Vol Down>--> <Power>
2. To Reset Error Count & Error History
Press < 8 > --> < 0 > key
3. To Reset Panel Operation Time
Press < 7 > --> < 0 > key
4. To exit, turn the power off using Remote.
STANDBY LED ERROR CODES 
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.


3




DC_ALERT 1/ Audio Error/ Motionflow Error



1) BAA board.
2) Power Unit(26”), G2LE Unit(32”),
G2HE Unit(40”) board.
3) TCON.
4) Speaker.


4





Balancer Error




1) Inverter board.
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”),
G2HE Unit(40”) board.


6



Backlight Error


1) Inverter board
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”),
G2HE Unit(40”) board.

SERVICE MODE 
HOW TO ACCESS SERVICE MODE  
1. While TV on standby mode, press the following sequence on the Remote commander.
< Display--> <5>--> <Vol Up>--> <Power>
2. Use the UP or DOWN  button to select the item you want to refer and press for details.
GAISOU Adjustment (For Board Replacement)
1) When new board is replaced, please confirm the color ornamental of the TV set.
2) While TV on standby mode, press the following sequence on the Remote commander.
<Display> p <5> p <Vol Up> p <Power>
3) Use the UP or DOWN  button to select the GAISOU item.
4) For example if color is Red than should select 03 in the service mode of the TV set.
TROUBLESHOOTING 
NO POWER
Check AC voltage at AC IN connector. 88 -132V for 110V models 176 – 264V for 220 – 240V Models.
Check Standby3.3V at CN6200 pin 3 on BAA board 3.3V? > Check Between G* Board to BAA Board Harness > G* Board
 Check REG12V at CN6200 pin 10 on BAA board > Check Power_On at CN6200 pin 5 on BAA board 3.3V? > BAA Board
STANDBY LED BLINK
3 times blinking
Check JL6315 Voltage on the BAA Board. 5.25V? > Check F6304. BAA board
Check Speaker Impedance at SP Connector  > Speaker
Check +12.5V at pin 1 of CN6200 on the BAA Board > G* Board
Check +12.5V_AU1 at F4001 on the BAA Board > F4001, IC4002,etc (BAA Board) > AZ1A: 3x Blinking For Audio Error
IC9000,etc (BAA Board)
4 times blinking
Check PANEL_DET at JL5601 on the BAA Board >  BAA Board
Check harness to Balancer Board > Replace G*/D* Board > PANEL (Balancer)
5 times blinking
Check TCON_ON at FB5619 on the BAA Board > BAA Board
Check TCON_VCC_12V
1) at JL6217 (non-motionflow models)
2) TCON_12V At G*Board (Motionflow models) > G* Board
Check F6200 for non-motionflow models > BAA Board
Harness check:
1) TCON to BAA board
2) TCON to G* board
3) LVDS cable
Change BAA
Panel (T-con)
6 times blinking
Check PANEL_DET at JL5601 on the BAA Board > BAA Board
Check all harness
Check D* Board > Inverter (D* Board)
*Check G* Board output or Change G* Board > G* Board
Panel
*Check G* Board output:
a) G2** UNREG24V = +24.0V
b) G5 PFC out Pin 5 CN6301 = +396.0V
c) G1LS UNREG24V = +24.0V
7 times blinking
Set location is OK? > Place Set to another location
Change BAA Board, and Aging a few hours > Panel
BAA Board
SONY TV SERVICE TIPS 
 SONY KV35S26
CHROMA PROBLEM
Unit has random chroma phase shifting. The tint will vary radically. NTSC color bars are not stable. "Barber Polling" effect of colors on bars.
SOLUTION
Look very close to the connection s to IC351(4) This the Chroma AFDC filter. Components R354, C355, C355 are in the AFCFIL circuit. It is possible the trouble is a Jungle IC but Before replacing it is recommended to check the aforementioned components first. Note: when checking the components it was found that C366 has glue touching each end of the device. The glue effectively changed the value of the device. Cleaning the glue and reinstalling the device corrected the problem.
SONY KV27V20
CLOSED CAPTION PROBLEM
No closed caption on premium channels
SOLUTION 
Needs to set the ID codes to the following ID0=25, ID1=19, ID2=47, ID3=0, ID4=27, ID5=3, ID6=0, ID7=0. If these are OK then need to replace the IC001 with an upgraded version per bulletin 329R1 Original generic is CXP85640-004S, the new generic is CXP856P40S-1
SONY KV32V15
COLOR BANDS
Unit has horizontal banding of purple and red at top of screen. If the color was reduced the banding would disappear. Color bar did not have a normal appearance.
SOLUTION
Resistor R354 was not soldered in correctly. The resistor is in the Color AFC circuitry. It had a .15 ms ripple on it causing a phase shift in the chroma in the first 4 to 5 inches on the picture. Problem was caused by a glue used to secure the surface mounted resistor. The glue prevented a good connection of the resistor to the pad. Cleaning the glue away and resoldering corrected the symptom.