Sony KD-55XD9305, KD-65XD9305 Schematic
SERVICE MANUAL
ORIGINAL MANUAL ISSUE DATE: 2/2016
Version Date Subject
1.0 2/2016 Original manual issue.
GN2SK CHASSIS
Segment: QF
LCD TV
9-888-588-01
MODEL LIST
MODEL COLOR COMMANDER DEST.
KD-55XD9305 Black RMF-TX200E CEI/UKA/RU3
KD-65XD9305 Black RMF-TX200E CEI/UKA/RU3
MODEL COLOR COMMANDER DEST.
KD-55/65XD9305
2
WARNINGS AND CAUTIONS - ENGLISH
CAUTION
These servicing instructions are for use by qualified service personnel only.
To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis.
The chassis of this receiver is directly connected to the ac power line.
CARRYING THE TV
Be sure to follow these guidelines to protect your property and avoid causing serious injury.
• Carry the TV with an adequate number of people; larger size TVs require two or more people.
• Correct hand placement while carrying the TV is very important for safety and to avoid damages.
SAFETY-RELATED COMPONENT WARNING!!
Components identified by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for safe operation. Replace these components with Sony
parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identified in this manual.
Follow these procedures whenever critical components are replaced or improper operation is suspected.
CAUTION ABOUT THE LITHIUM BATTERY
• Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.
• Outer case broken battery should not contact to water.
KD-55/65XD9305
3
WARNINGS AND CAUTIONS - FRENCH
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualifi é seulement.
Pour prévenir le risque de choc électrique, ne pas faire l’entretien autre que celui contenu dans le Mode d’emploi à moins que vous soyez qualifi é faire ainsi.
WARNING!!
Afi n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout dépannage. Le chássis de ce récepteur est
directement raccordé à l’alimentation du secteur.
POUR TRANSPORTER LE TÉLÉVISEUR
Tenez compte de ce qui suit pendant l’installation du téléviseur :
• Débranchez tous les câbles avant de transporter le téléviseur.
• Transportez le téléviseur avec le nombre de personnes approprié ; un téléviseur de grande taille doit être transporté par au moins deux personnes.
• Lors du transport du téléviseur, l’emplacement des mains est très important pour votre sécurité, ainsi que pour éviter de causer des dommages.
ALERTE!!
Afi n d’eviter tout risque d’electrocution provenant d’un chassis sous tension, un transformateur d’isolement doit etre utilise lors de tout depannage. Le chassis de ce recepteur est
directement raccorde a l’alimentation du secteur.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es par une trame et par une marque sur les schemas de principe, les vues explosees et les listes de pieces sont d’une importance critique pour la securite
du fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les
reglages de circuit dont l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de chaque remplacement de
composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
KD-55/65XD9305
4
USE CAUTION WHEN HANDLING THE LCD PANEL
When repairing the LCD panel, be sure you are grounded by using a wrist band.
When repairing the LCD panel on the wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.
1) Do not press on the panel or frame edge to avoid the risk of electric shock.
2) Do not scratch or press on the panel with any sharp objects.
3) Do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause a short circuit within the module.
6) Disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms.)
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
9) Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
10) It is recommended not to exceed 1 hour of Power-On nor Burn-in period with LCD panel face down condition, in repair activity.
WARNINGS AND CAUTIONS
KD-55/65XD9305
5
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.
2. Check the interboard wiring to ensure that no wires are “pinched” or touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.
6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.
8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.
KD-55/65XD9305
6
Leakage Test
The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed
metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers’
instructions to use these instructions.
2. A battery-operated AC milliampmeter. The Data Precision 245 digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The
“limit” indication is 0.75 V, so analog meters must have an accurate low voltage scale.
The Simpson’s 250 and Sanwa SH-63TRD are examples of passive VOMs that are suitable. Nearly all
battery-operated digital multimeters that have a 2 VAC range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also
at earth ground.
If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance
between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon lamp) between the hot
side of the receptacle and the retaining screw. Try both slots, if necessary, to locate the hot side on the line; the
lamp should light at normal brilliance if the screw is at ground potential (see Figure B).
SAFETY CHECK-OUT
KD-55/65XD9305
7
SELF DIAGNOSIS FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the Smart Core Red LED will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem.
A definition of the Smart Core Red LED flash indicators is listed in the instruction manual for the user’s knowledge and reference.
If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these
problems occur.
DIAGNOSTIC TEST INDICATORS
When an error occurs, the Smart Core Red LED will flash a set number of times to indicate the possible cause of the problem.
If there is more than one error, the LED will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a “0”, no error has occurred .
<G>: Power supply board, <B>: Main board, <T>: Tcon board, (LD) board,<P>: Panel module,
<S>: Speaker, <A>: Power Adapter, <D>: DPS 4K BE board, <T>: Temperature Board
RED LED blinking count Detection Items
2x <G/B/A> Main 12V over voltage [MAIN_POWER]
3x
4x
5x
6x <G/P/B/LD/D> Backlight failure [BACKLIGHT]
7x
8x <B/D> Software error [SW_ERR]
<B> Main 5.0V failure [DC_ALERT]
<B/S> Audio amp. protection [AUD_ERR]
<LD/P/D> LED driver failure/LED voltage protection [LD_ERR]
<LD/P/D>Error detection of the I2C communication between the Main device and the LD IC.[BCM_ERR]
<P/T/G/B> Panel ID EEPROM I2C No ACK (Also panel power failure is a suspect) [P_ID_ERR]
<T> Tcon IC I2C communication error [TCON_ERR]
Over temperature protection [TEMP_ERR]
<B/T> Temp. sensor I2C No ACK [TEMP_ERR]
<B/D> V By One lock error between Main device and 4KBE device [4KBE_ERR]
<B>4KBE device UART communication error detection.
KD-55/65XD9305
Red italic: detect at startup sequence only.
8
SELF DIAGNOSIS FUNCTION
[SELF DIAGNOSTIC SCREEN DISPLAY]
Format of error timestamps
YYMMDDhh mmss (in UTC)
Example :
120823132523 -> Aug 23 2012 13:25:23 UTC
* On ly whe n time is set, an err or tim estamp
is save d.
• Panel Ope rat ion Ti me is recorded ever y 30 min,
but Total Operation Ti me is recorded eve ry 1 h r .
Ther efo re, the panel op. time might bec ome l arg er t han th e total op. tim e.
Total Operation Time [hr] – Boot Count – Panel Operation Time [hr]
" These error item
does not work."
Smart Core Red LED
blinking count
For errors with symptoms such as “power sometimes shuts off” or
“screen sometimes goes out” that cannot be confirmed,
it is possible to bring up past occurrences of failure for confirmation on the screen:
In standby mode, press buttons on the remote commander sequentially in rapid
succession as shown below:
Error Naming
SELF CHECK
Back
<<
002 MAIN_POWER 000000000000 000000000000 000000000000 000
003 DC_ALERT 000000000000 000000000000 000000000000 000
003 AUD_ERR 150101000018 150101000018 150101000018 003
003 HDMI_EQ 150101000123 150101000045 150101000045 003
003 TU_DEMOD 150101000218 150101000223 150101000105 003
004 LD_ERR 000000000000 000000000000 000000000000 000
004 BCM_ERR 000000000000 000000000000 000000000000 000
005 TCON_ERR 150101000504 000000000000 000000000000 001
005 P_ID_ERR 000000000000 000000000000 000000000000 000
006 BACKLIGHT ERR 000000000000 000000000000 000000000000 000
007 TEMP_ERR 150101000200 150101000002 000000000000 002
007 4KBE_ERR 000000000000 000000000000 000000000000 000
008 SW_ERR 000000000000 000000000000 000000000000 000
00005 00414 00002
[Home]Exit
Error
timestamp for
last recorded
error
Error count
Error
timestamp for
second last
recorded error
Error
timestamp for
3rd last
recorded error
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen.
After you have completed the repairs, clear the result display to “0”.
Clearing the Self Check Diagnostic List
Panel operation time : Press the Channel 7 => Channel 0 .
NOTE:
This model does not have the function to clear the error history of self-diagnostic screen
by remote such as press the Channel 8 => Channel 0.
To exit the Self Diagnostic screen...
*If you want to finish service mode app, do AC OFF/ON
→Service mode app is disable perfectly
*if you want to move home menu, push <HOME>button
→Service mode app do background(not disable perfectly)
KD-55/65XD9305
9
ADJUSTMENT
HOW TO ENTER SERVICE MODE
1) Turn on the main power switch to place the set in standby mode.
2) Press the buttons on the remote commander as follows, and entering service mode.
3) Service mode display.
Service Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
>>
>>
>>
>>
>>
>>
>>
4) How to use the remote commander.
*When finished the operation of service mode , please AC Plug OFF/ON the TV set.
If you don’t do AC plug OFF/ON, remain the Service Mode App and User can see the Service Mode after RC ON.
(Refer the previous page.)
KD-55/65XD9305
[</>] Set [Home]Exit
Function The flow of control
Service mode on <Display><5><V ol Up><Powe r>
Service mode off AC plug OF F/Menu*
Item up / down <↑>/ <↓ >
Item select left/right
Execute <OK>
<←>/<→>
10
SOFTWARE VERSION
>>
Model Information
>>
Model Number Setting
>>
SERIAL NUMBER EDIT
[</> ] Set [Home]Exit
Model
Status Information
1) In Service Mode, select “Model Information”, press “Enter” or “→” button to enter Status Information.
ADJUSTMENT
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
Service Mode
>>
>>
>>
>>
>>
>>
>>
[</>] Set [Home]Exit
2) Press “Enter” or “Return” button to return to Service Mode.
Service Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
>>
>>
>>
>>
>>
>>
>>
>>
Main Micro
SW Version:
NVM Version:
Boot Version:
PQ Version:
AQ Version:
<Ext>
exFRC:
CameraVID:
CameraPIC:
CameraFW:
4k BE
MLFW:
MAFW:
ADSP
NDAT
PDAT
BDAT
BCM
FDAT
UDAT
BDIX
PKG2.011.0010NAB
0001 UC2
V1.000
102100006
AQ1.100
00.00.00.00
0
0
0
SF1.002
SF0.360
SF0.501
SD0.370
SD0.370
SD1.011
SD------SD0.002
SD0.000
SD0.370
KD-55/65XD9305
[</>] Set [Home]Exit
11
SERIAL NUMBER EDIT (1)
ADJUSTMENT
1) In “Service Mode”, select “Model Information” by pressing “↑” or “↓” then pressing “Enter” or
“→” button to enter inside.
2) Select “Serial Number Edit” by pressing “↑” or “↓” button then pressing “→” button.
3) Press “↑” or “↓” to input numbers.
4) After user input data , press <Enter> .
• Pop-up dialog appear to confirm input data correct
• Serial Number can be set ONLY ONCE
5) Press “→” or “←” button to select YES or NO.
Select YES if input data is correct.
Select NO if input data is incorrect.
Press <Enter> to save answer.
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
Status Information
Model Information
Model Number Setting
Serial Number Edit
Status Information
Model Information
Model Number Setting
Serial Number Edit
Service Mode
>>
>>
>>
>>
>>
>>
>>
[</>] Set [Home]Exit
Service Mode
Service Mode
>>
>>
>>
_ _ _ _ _ _ _
>>
>>
>>
9 9 9 9 9 9 9
KD-55/65XD9305
Input Data correct?
Yes No
12
SERIAL NUMBER EDIT (2)
Yes No
Input Data correct?
ADJUSTMENT
If YES is selected, the input data is saved into EEPROM.
SERIAL NUMBER EDIT is greyed out and the serial number that has been input is displayed.
User will not able to edit anymore.
If NO is selected, the input data is not saved into EEPROM.
The serial number that has been input is displayed.
User can still edit the Serial Number.
Status Information
Model Information
Model Number Setting
Serial Number Edit
Status Information
Model Information
Model Number Setting
Serial Number Edit
Service Mode
>>
>>
>>
9 9 9 9 9 9 9
Service Mode
>>
>>
>>
9 9 9 9 9 9 9
KD-55/65XD9305
13
MODEL NUMBER SETTING
_ _ _ _ _ _ _ _ _ _ _ _
OK
[MODEL_NUMBER_SETTING]
1) In “Service Mode”, select “Model Information” by pressing “↑” or “↓” then pressing “Enter” or “→” button to enter inside.
2) Select “Model Number Setting” by pressing “↑” or “↓” button then pressing “Enter” or “→” button.
3) Press “↑” or “↓” arrow key to scroll Product Name Candidate.
(e.g. KDL-40X500B CO1,KDL-40X500C BR6)
ADJUSTMENT
Service Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
>>
>>
>>
>>
>>
>>
>>
Status Information
Model Information
Model Number Setting
Serial Number Edit
Service Mode
>>
>>
>>
>>
[</>] Set [Home]Exit
4) Select one Product Name from the list, press <Enter> will pop dialog to inform user to confirm data. Model dependent settings will be overwritten into EEPROM.
KD-55/65XD9305
14
ADJUSTMENT
Back
R WB Gain
<[ 0 ]>
G WB Gai n
<[ 0 ]>
B WB Gain
<[ 0 ]>
R WB Offs et
<[ 0 ]>
G WB Offs et
<[ 0 ]>
B WB Offs et
<[ 0 ]>
<<
[</>] Set [Home]Exit
>>
>>
>>
>>
>>
>>
>>
Service Mode
[</>] Set [Home]Exit
Tuner
Wifi / BT
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
WB ADJUSTMENT
(Please apply when the Main board or panel is replaced.)
In “Panel/PQ” service mode.
a. Go to “WB Adjustment” category by “↑” or “↓”.
b. To select “WB Adjustment”, press “→” button.
c. To change data , press “←” or “→” on remote commander.
KD-55/65XD9305
15
ADJUSTMENT
>>
>>
>>
>>
>>
>>
>>
Service Mode
[</>] Set [Home]Exit
Tuner
Wifi / BT
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Back
<<
<[ 0. SoC to T-con ]>
Mura data transfer
<[ 0. SoC to T-con ]>
CUC data trans fer
<[ 0. SoC to T-con ]>
[Start]
[</>] Set [Home]Exit
WB/Gamma data trans fer
WB/MURA/CUC DATA TRANSFER
(Please apply when the Main board or panel is replaced.)
1. In “Panel/PQ” service mode.
a. Go to “WB/Mura/CUC data transfer” category by “↑” or “↓”.
b. To select “WB/Mura/CUC data transfer”, press “→” button.
c. To change data , press “←” or “→” on remote commander.
2. In “WB/Mura/CUC data transfer”.
a. Select “WB/Gamma data transfer” by pressing “↑” or “↓” on remote commander.
b. To change the items, press “←” or “→” on remote commander and press “Enter”
button.
Selectable items are:
0. SoC to T-con
1. T-con to SoC
2. Not action
c. Select “[start]” and press “Enter” button to start transfer.
KD-55/65XD9305
*Please refer to another manual “Service Procedure for Panel, Board and Software Change /
Upgrade(P/N:98881800x)” for details. GN2SK chassis is the same as GN1T chassis basically.
WB/
Gamma
Mura
CUC
B-board
replace
1.T-con to
Soc
1.T-con to
Soc
1.T-con to
Soc
T-con
replace
0.SoC to
T-con
0.SoC to
T-con
0.SoC to
T-con
Panel
replace
0.SoC to
T-con
1.T-con
to Soc
1.T-con
to Soc
16
HDD PERFORMANCE CHECK
>>
>>
>>
>>
>>
>>
>>
[</>] Set [Home]Exit
General Setting
Tuner
Wifi / BT
Service Mode
Model Information
Self diagnos is History
Video / Audio
Panel / PQ
Service Mode
Please wait…
<[ NG ]>
Back <<
HDD Performace Check
Result
ADJUSTMENT
1. In “Service Mode”, select “General Setting” by pressing “↑” or “↓” then
pressing “Enter” or “→” button to enter inside.
2. Select “HDD Performance check ” by pressing “↑” or “↓” then pressing
“Enter” or “→” button to enter inside.
General Setting
Back <<
Aging mode <[On/Off]>
HDD Performance Check
AAA
Update CI+ Credentials >>
Boot count reset >>
ECS Enable <[On/Off]>
3. A message "Please wait ..." is displayed during performance check processing.
4. Result OK or NG will be displayed after performance of HDD is checked.
HDD Performance Check
>>
>>
[</>] Set [Home]Exit
KD-55/65XD9305
17
HDD RE-REGISTRATION
>>
>>
>>
>>
>>
>>
>>
[</> ] Set [Home]Exit
General Setting
Tuner
Wifi / B T
Servic e Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
<[ NG ]>
Back <<
HDD Re-Register
Result
1) In “Service Mode”, select “General Setting” by pressing “↑” or “↓” then pressing “Enter” or “→” button to enter inside.
2) Select “AAA” by pressing “↑” or “↓” then pressing “Enter” or “→” button to enter inside.
Back <<
Aging mode <[On/Off]>
HDD Performance Check >>
AAA >>
Update CI+ Credentials >>
Boot count reset >>
ECS Enable <[On/Off]>
General Setting
ADJUSTMENT
3) Result OK or NG will be displayed after HDD re-registration is succeed/failed.
[</>] Set [Home]Exit
KD-55/65XD9305
18
USB UPDATE
1:Download USB image and unzip file.
2: copy unzip file to USB memory root folder.
3: USB memory insert TV.
*Please refer to another manual “Service Procedure for Panel, Board
and Software Change / Upgrade(P/N:98881800x)” for details.
GN2SK chassis is the same as GN1T chassis basically.
4:USB image is newer soft version.
Automatically show message and start update.
Please follow directions.
System software update
Copying USB update file. Please wait…
Preparing for system software update. During the system software update, the TV will automatically restart.
Please do not remove the USB device until an update complete message is displayed . The update may take up to
30 minutes to complete.
System software update
The system software update is complete .
Some user settings may have changed during the update.
Please remove the USB device and select ”OK” to exit
5: finished
OK
46%
4:USB image is not newer soft version.
Automatically show message and start update.
Please follow directions.
System software update
Your software is up to date
Please remove the USB device and select [OK] to exit
5: finished
OK
KD-55/65XD9305
19
TROUBLE SHOOTING
Remote
Bluetooth
No White Power LED &
Stationary
dots
No video
No video
all Inputs
No Remote
Smart Core no LED
Bluetooth / One
Step Remote
Power
(Communication)
(Backlight)
TEMP
Software
4KBE
TRIAGE
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring all the boards and cables listed for that symptom.
4. Follow the troubleshooting charts in the technical guides to isolate the board.
5. Chart Color Code.
RED DOT: Most likely defective part
BLUE TRIANGLE: Secondary possible defective part
BLACK TEXT: Board that may correct the symptom
KD-55/65XD9305
Reference
B* Board
G* Board/ADP
H* Board
Speaker
Wifi & BT
Module
LD* Board
V By One FFC
Tcon
LCD Panel
Temp Board
Problem
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
2 3 4 5 6 7 8 9 10
p l p
l p p
p
p p l l
p l
l p l p l
Power LD
Audio
p
p
l
l l
l
Panel
Panel
does not response to
remote (Dead Set)
No
Power
Video
- missing or distorted
colored
One of
lines or
Inputs
Network Audio Skype Smart Core
Wireless
can't connect
No Audio
Skype
Can't Work
(Set is still alive)
(OSR) can't
p p l l p p l p p p
l
p
l
p
p
l
p
p
p
p
l
l
p
l
p
p
l
(BT)
connect
l
20
FLOW
1-1. NO POWER
TROUBLE SHOOTING
with G* board
No Power
Check STBY 3.3V
C484
near CN401
on DPS board
OK
Check STBY 3.3V
C9006
near CN9000
on BM1 board
OK
B* Board
NG
NG
Replace
Between G* Board to
DPS Board Harness
OK
Harness
Replace
Between DPS Board to
BM1 Board Harness
OK
Harness
u-Com Failure
DDCON/LDO
NG
NG
G* Board
DPS Board /
R407, R408
on DPS Board
with AC-ADP
No Power
Check 24V
C485
near CN401
on DPS board
OK
Check STBY 3.3V
C9006
near CN9000
on BM1 board
OK
B* Board
NG
NG
Replace
Between LD Board to
DPS Board Harness
OK
Harness
Replace
Between DPS Board to
BM1 Board Harness
OK
Harness
u-Com Failure
DDCON/LDO
NG
NG
LD Board
or
AC Adaptor
DPS Board /
IC408
on DPS Board
KD-55/65XD9305
Main Device Failure
Main Device Failure
21
FLOW
1-2-1. NO POWER U-COM FAILURE
START
TROUBLE SHOOTING
Check C9117 Voltage.
Is the voltage >3.0V?
yes
Check C9129 Voltage.
Is the voltage >3.0V?
yes
Check OPWRSB
R9179 Voltage.
Is the voltage 0V?
yes
Check POWER_ON
IC9017 #pin19
Is the voltage >3.0V?
yes
Check P_ON_LNB
IC9017 #pin15
Is the voltage >3.0V?
no
no
no
no
no
Check +3.3V_STBY
C9006, CN9000 #24pin
Check DC_OFF_DET
IC9000
SOC
Muffin
problem
Try AC Off and On after few minutes.
If #pin19 keep Low, change IC9017.
If #pin19 goes High few seconds and downs to Low,
Check 12.5V Line (G board or IC403 on DPS).
Change IC9017
Check MAIN_VCC
R9175 Voltage.
Is the voltage >1.6V?
yes
Check P_ON_VBUS
IC9017 #pin11
is >3.0V?
yes
Check P_ON_#1
IC9017 #pin13
is >3.0V?
yes
Check PGOOD_1
R9173 Voltage.
Is the voltage >3.0V?
yes
Continue next page…
no
no
no
no
Check 12.5V Line
(G board or IC403 on DPS).
Change IC9017
Change IC9017
1-3 No POWER - DDCON/LDO
Check 1.0V DDCON (IC9008)
KD-55/65XD9305
yes
22
FLOW
1-2-1. NO POWER U-COM FAILURE
from the previous page
TROUBLE SHOOTING
1-2-2. NO POWER DC_OFF_DET CHECK
START
Check P_ON_#2
IC9017 #pin14
Is the voltage >3.0V?
yes
Check ORESETB
IC9017 #pin12
Is the voltage >3.0V?
yes
Check X_SYSTEM_RST
IC9017 #pin16
Is the voltage >3.0V?
yes
If PANEL_PWER_ON
(R9172) is 0V
Check XRST
IC9017 #pin17
Is the voltage >3.0V?
yes
If BL_MUTE
(R9090) is 0V
Check BL_ON
IC9017 #pin18
Is the voltage >3.0V?
yes
no
no
no
no
no
Change IC9017
Change IC9017
Change IC9017
Change IC9017
Change IC9017
Check DC_OFF_DET
R9035
Is voltage < 3V?
yes
Check Vdd
C9024
Is voltage < 5V?
yes
END
( IC9000 is working OK )
no
( IC9000 is working OK )
no
END
Change IC9000
KD-55/65XD9305
( IC9017 is working OK )
END
23
FLOW
1-3. NO POWER DDCON/LDO
DDCONs check
START
TROUBLE SHOOTING
Check fuse
F9xxx / F4xx
Is fuse OK?
yes
Check Vcc voltage
C9xxx / C4xx
Is voltage >12.0V?
yes
Check Enable pin
voltage
Is voltage >2.5V?
yes
Change DDCON IC
no
no
no
Change Fuse
Check POWER_ON IC9017 #pin19
(Refer 1-2 No Power U-Com Failure)
1-2 No Power U-Com Failure
or
Enable source
KD-55/65XD9305
24
FLOW
1-3. NO POWER DDCON/LDO
DDCON check
START
TROUBLE SHOOTING
Check IC9001 Vcc voltage
C9033
Is voltage >12V?
yes
Check Vcc voltage
C9061
Is voltage >4V?
yes
Check Enable
IC9010 #pin1
Is voltage >2.5V?
yes
Change DDCON
IC9009
no
no
no
Check Vcc voltage
C9061
Is voltage >3V?
yes
Check
D9001
Is diode ?
yes
Change IC9010
no
no
Check
D9000
Is diode ?
no
yes
Change D9001
Check +5V_MAIN DDCON (IC9001)
Change D9000
Check +3.3V_STBY.
G board or IC408 on DPS
KD-55/65XD9305
25
FLOW
1-3. NO POWER DDCON/LDO
LDOs check
START
yes
TROUBLE SHOOTING
Check Vcc voltage
C9xxx
Is voltage >3V?
yes
Check Enable pin
voltage
Is voltage >3V?
yes
Change LDO IC
no
Check +3.3V_DDC_OUT
DDCON (IC409)
no
1-2 No Power U-Com Failure
KD-55/65XD9305
26
FLOW
2-1. LED BLINKING 2X (MAIN POWER ERROR)
TROUBLE SHOOTING
with G* board
2-time blinking
Check +12V_REG
at pin 11/13 of on B Board
(CN9000 BM1),
Voltage > 13.2V ?
No
BM1 Board
Yes
G* Board
with AC-ADP
2-time blinking
Check +12V_REG
at pin 11/13 of on B Board
(CN9000 BM1),
Voltage > 13.2V ?
No
BM1 Board
Yes
DPS Board /
IC403 on DPS
KD-55/65XD9305
27
FLOW
2-2. LED BLINKING 3X
TROUBLE SHOOTING
2-3. LED BLINKING 4X (LED VOLTAGE ERROR)
AUDIO ERROR DC_ALERT
LED 3x blinking
Check +5.0V_VBUS
at pin1 in IC8001, 4.959V
<Voltage<5.285V?
OK
Audio check point
Go to Audio Error
NG
IC9014,etc
(B* Board)
LED 3x blinking
Audio Error ?
Yes
Go to
3-3 Power Off Checking
Go to
3-4 Power On Checking
Replace B Board
No
See other flow
4-time blinking
Check
BMFW2: CN9000 21Pin
BM1: CN7704 29Pin
on the B* Board
Under0.897V or less
B* Board
Change LD board or G* board/Adapter.
Between 0.898V to 2.997V
LED driver or G* board/Adapter
KD-55/65XD9305
Finish
28
FLOW
2-4. LED BLINKING 5X (PANEL COMMUNICATION ERROR)
5-times blinking
TROUBLE SHOOTING
Check
“+12.5V_TCON” at
CN401 #4 (or C493)
on the DPS-Board
OK
Replace the Harness
Between G-Board
and DPS
NG
Replace
the V-By-One FFC
NG
NG
Replace G-Board
Symptom
improve
Symptom
improve
OK
NG
Harness is
suspicious
V-By-One FFC
is suspicious
G-Board is
suspicious
Change
DPS
Symptom
improvement
DPS is
suspicious
NG
Change
Panel (or T-con)
Symptom
improvement
Panel (or T-Con) is
suspicious
KD-55/65XD9305
29
FLOW
2-5. LED BLINKING 6X (BACKLIGHT ERROR)
6-times blinking
Check Voltage of
BL_ERR_DET
on 21pin of CN401
on DPS
Voltage < 1.85 V
Voltage ≥ 1.85 V
Check
harness/connection
G/LD* board to DPS Board
Harness /
Connection OK
Harness /
Connection
broken
Change
harness
No
improvement
LED driver or G board
Change LD board or G board.
TROUBLE SHOOTING
Symptom
Improvement
Harness
Symptom
Improvement
LD board / G board
No
Improvement
between DPS and BM1
No
Improvement
KD-55/65XD9305
Change
DPS
Change 30P FFC
BM1 Board
Symptom
Improvement
Symptom
Improvement
DPS Board
30P FFC
No
improvement
Change
No
Improvement
Panel
Symptom
Improvement
Panel
30
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