Page 1
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL
ORIGINAL MANUAL ISSUE DATE: 3/2015
Version Date Subject
1.0 3/2015 Original manual issue.
GN1T CHASSIS
Segment: XFL
LCD TV
9-888-568-01
Page 2
SERVICE MANUAL
GN1T CHASSIS
Segment: XFL
LCD TV
9-888-568-01
Page 3
MODEL LIST
MODEL COLOR COMMANDER DEST.
XBR-43X830C Black RMT-TX100U (UC2)
US/CND
XBR-49X830C Black RMT-TX100U (LA1)
MEXICO
(UC2)
US/CND
XBR-49X835C Black RMT-TX100B (LA8)
CHILE
PERU
VENEZUELA
(AR4)
ARGENTINA
(CR1)
COSTA RICA
(ECU)
ECUADOR
Silver RMT-TX100B (BR6)
BRAZIL
XBR-49X837C Black RMT-TX100B (CO1)
COLOMBIA
MODEL COLOR COMMANDER DEST.
XBR-43X830C, 49X830C, 835C, 837C
3
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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.
XBR-43X830C, 49X830C, 835C, 837C
4
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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.
XBR-43X830C, 49X830C, 835C, 837C
5
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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
XBR-43X830C, 49X830C, 835C, 837C
6
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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.
XBR-43X830C, 49X830C, 835C, 837C
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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
XBR-43X830C, 49X830C, 835C, 837C
8
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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 .
RED LED blinking count Detection Items
2x
<G/B> Main 12V over voltage [MAIN_POWER]
<B> Main 5.0V failure [DC_ALERT]
<G>: Power supply board, <B>: Main board, <T>: Tcon board,
<P>: Panel module , <S>: Speaker , <A>: Power Adapter
3x
4x None
5x
6x <G/P/B> Backlight failure [BACKLIGHT]
7x
8x <B> Software error [SW_ERR]
Red italic: detect at startup sequence only.
XBR-43X830C, 49X830C, 835C, 837C
<B/S> Audio amp. protection [AUD_ERR]
<B> Tuner or demodulator I2C No ACK [TU_DEMOD]
<B> HDMI Switch/Equalizer I2C communication error [HDMI_EQ]
<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> Temp. sensor I2C No ACK [TEMP_ERR]
<B> V By One lock error between Main device and 4KBE device [4KBE_ERR]
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[SELF DIAGNOSTIC SCREEN DISPLAY]
SELF DIAGNOSIS FUNCTION
Format of error timestamps
YYMMDDhhmmss (in UTC)
Example:
120823132523 -> Aug 23 2012 13:25:23 UTC
* Only when time is set, an error timestamp
is saved.
Smart Core Red LED
blinking count
•Panel Operation Time is recorded every
30 min, but Total Operation Time is recorded every 1 hr.
Therefore, the panel op. time might become larger than
the total op. time.
Error item Naming
Error count
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
timestamp for
second last
recorded error
Error
timestamp
for 3rd last
recorded
error
XBR-43X830C, 49X830C, 835C, 837C
Total Operation Time [hr] – Boot Count – Panel Operation Time [hr]
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SELF DIAGNOSIS FUNCTION
SELF-DIAGNOSTIC SCREEN DISPLAY
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:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
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 .
Exiting the Self-diagnostic screen
To exit the Self Diagnostic screen, Power off & on or Push the <Home> button.
XBR-43X830C, 49X830C, 835C, 837C
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SEC 1. DISASSEMBLY
• There are clutch in the yellow frame[ ]. Therefore please be careful in the case of the disassembly or assembly of parts.
XBR-43X830C, 49X830C, 835C, 837C
12
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1-1. XBR-43X830C
1-1-1. STAND
DISASSEMBLY
4 screws (SCREW, +PSW M5X16) P/N: 4-449-743-01
XBR-43X830C, 49X830C, 835C, 837C
STAND
13
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1-1. XBR-43X830C
1-1-2. LABEL, REAR TERMINAL AND LABEL, SIDE TERMINAL (W)
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
LABEL, REAR TERMINAL
LABEL, SIDE TERMINAL (W)
14
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1-1. XBR-43X830C
1-1-3. AC COVER AND POWER SUPPLY CORD
DISASSEMBLY
1
Screw (SCREW, +PWH M3X6) P/N: 4-452-935-11
2 3 4
XBR-43X830C, 49X830C, 835C, 837C
POWER SUPPLY CORD
AC COVER
5
15
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1-1. XBR-43X830C
1-1-4. REAR COVER (SM HRN) A
2
DISASSEMBLY
1
9 screws (SCREW, +BVTP 4X12 TYPE2 IT-3) P/N: 2-580-639-01
4 screws (SCREW, +PSW M4X10) P/N: 4-159-298-01
9 screws (SCREW, +PWH M3X6) P/N: 4-452-935-11
3
XBR-43X830C, 49X830C, 835C, 837C
REAR COVER (SM HRN) A
16
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1-1. XBR-43X830C
1-1-5. TAPE AND WIRE DRESSING
DISASSEMBLY
TAPE
XBR-43X830C, 49X830C, 835C, 837C
17
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1-1. XBR-43X830C
1-1-6. TAPE AND WIRE DRESSING
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
TAPE
TAPE
18
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1-1. XBR-43X830C
1-1-7. SPEAKER BOX ASSY (L)
2 3
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
SPEAKER BOX ASSY (L)
19
Page 20
1-1. XBR-43X830C
1-1-8. SPEAKER BOX ASSY (R)
2 3
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
SPEAKER BOX ASSY (R)
20
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1-1. XBR-43X830C
1-1-9. TAPE
DISASSEMBLY
TAPE
XBR-43X830C, 49X830C, 835C, 837C
TAPE
21
Page 22
1-1. XBR-43X830C
1-1-10. BT ANTENNA
DISASSEMBLY
1
2 4
Screw (SCREW (+PSW) (M3X6))
P/N: 2-990-421-41
XBR-43X830C, 49X830C, 835C, 837C
3
BT ANTENNA
22
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1-1. XBR-43X830C
1-1-11. SMART CORE
DISASSEMBLY
Notes on assembling the Smart core
1
2
SMART CORE
XBR-43X830C, 49X830C, 835C, 837C
Front View of the TV
23
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1-1. XBR-43X830C
1-1-12. SWITCH UNIT
2 3
DISASSEMBLY
1
Release the lock
XBR-43X830C, 49X830C, 835C, 837C
SWITCH UNIT
24
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1-1. XBR-43X830C
1-1-13. HARNESS ASSY (MAIN) AND CONNECTOR ASSY 28P
DISASSEMBLY
HARNESS ASSY (MAIN)
P/N: 1-910-110-20
XBR-43X830C, 49X830C, 835C, 837C
CONNECTOR ASSY 28P
P/N: 1-910-110-19
25
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1-1. XBR-43X830C
1-1-14. BRACKET,SC (HRN)
DISASSEMBLY
1
2 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
XBR-43X830C, 49X830C, 835C, 837C
3 2
BRACKET,SC (HRN)
26
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1-1. XBR-43X830C
1-1-15. SLIDE, CLAMP
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
2
SLIDE, CLAMP
27
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1-1. XBR-43X830C
1-1-16. BOTTOM, FRAME (HRN)
DISASSEMBLY
1
8 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
2 3
XBR-43X830C, 49X830C, 835C, 837C
BOTTOM, FRAME (HRN)
28
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1-1. XBR-43X830C
1-1-17. BRACKET, SP (LAK)
DISASSEMBLY
1
8 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
2
XBR-43X830C, 49X830C, 835C, 837C
3
BRACKET, SP (LAK)
29
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1-1. XBR-43X830C
1-1-18. GL4(CH)-STATIC CONVERTER (TV)
2 3
DISASSEMBLY
1
4 screws (SCREW, +PSW M3X6 W12) P/N: 4-256-393-11
XBR-43X830C, 49X830C, 835C, 837C
GL4(CH)-STATIC CONVERTER (TV)
30
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1-1. XBR-43X830C
1-1-19. SHEET, INSULATION(HRN S)
Notes on assembling the Insulation sheet (HRN S)
DISASSEMBLY
1 2
SHEET, INSULATION(HRN S)
XBR-43X830C, 49X830C, 835C, 837C
31
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1-1. XBR-43X830C
1-1-20. FLEXIBLE FLAT CABLE 41P (XFA) AND FLEXIBLE FLAT CABLE 51P (XFA)
1
TAPE
DISASSEMBLY
2 3
XBR-43X830C, 49X830C, 835C, 837C
FLEXIBLE FLAT CABLE 41P (XFA)
P/N: 1-848-910-11
FLEXIBLE FLAT CABLE 51P (XFA)
P/N: 1-848-912-11
32
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1-1. XBR-43X830C
1-1-21. BRACKET, SIDE F (MOLD)
DISASSEMBLY
1
2
XBR-43X830C, 49X830C, 835C, 837C
3
BRACKET, SIDE F (MOLD)
33
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1-1. XBR-43X830C
1-1-22. BMFW ASSY
1
< 1 >
< 1 >
DISASSEMBLY
< 2 >
< 1 >
< 1 >
2
3
< 1 >
< 1 >
< 3 >
8 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
BMFW ASSY
XBR-43X830C, 49X830C, 835C, 837C
34
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1-1. XBR-43X830C
DISASSEMBLY
1-1-23. GASKET (BMF)
Stick GASKET inside the guide line.
GASKET (BMF)
GASKET (BMF)
NOTE:
When you replace a BMFW board, it is necessary to
stick five new GASKET on a new BMFW board.
GASKET (BMF): 4-566-117-01
To stick the GASKET firmly,
Press the gasket until compression completely.
(0.5-1.0kgf)
Caution:
1. Please aim at the center of square land.
2. Assy the gaskets just before B board panel installation.
XBR-43X830C, 49X830C, 835C, 837C
Guide line
*No indication of direction
35
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1-1. XBR-43X830C
1-1-24. SHEET, THERMAL(BM)
DISASSEMBLY
1
SHEET, THERMAL(BM)
XBR-43X830C, 49X830C, 835C, 837C
2
36
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1-1. XBR-43X830C
1-1-25. PLATE, MAIN S(HRN)
1 2 3
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
PLATE, MAIN S
(HRN)
2 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
1 2 3
PLATE, MAIN S
(HRN)
2 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
37
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1-1. XBR-43X830C
1-1-26. SLIDE, CLAMP
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
2
SLIDE, CLAMP
38
Page 39
1-1. XBR-43X830C
1-1-27. LCD PANEL
LCD PANEL
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
39
Page 40
1-2. XBR-49X830C/835C/837C
1-2-1. STAND
DISASSEMBLY
4 screws (SCREW, +PSW M5X16) P/N: 4-449-743-01
XBR-43X830C, 49X830C, 835C, 837C
STAND
40
Page 41
1-2. XBR-49X830C/835C/837C
1-2-2. LABEL, REAR TERMINAL AND LABEL, SIDE TERMINAL (W) AND LABEL, CI
DISASSEMBLY
(CO1 ONLY)
LABEL, CI
XBR-43X830C, 49X830C, 835C, 837C
LABEL, REAR TERMINAL
LABEL, SIDE TERMINAL (W)
41
Page 42
1-2. XBR-49X830C/835C/837C
1-2-3. AC COVER AND POWER SUPPLY CORD
DISASSEMBLY
1
Screw (SCREW, +PWH M3X6) P/N: 4-452-935-11
2 3 4
XBR-43X830C, 49X830C, 835C, 837C
POWER SUPPLY CORD
AC COVER
5
42
Page 43
1-2. XBR-49X830C/835C/837C
1-2-4. REAR COVER (M HRN) A
2
DISASSEMBLY
1
9 screws (SCREW, +BVTP 4X12 TYPE2 IT-3) P/N: 2-580-639-01
4 screws (SCREW, +PSW M4X10) P/N: 4-159-298-01
10 screws (SCREW, +PWH M3X6) P/N: 4-452-935-11
3
XBR-43X830C, 49X830C, 835C, 837C
REAR COVER (M HRN) A
43
Page 44
1-2. XBR-49X830C/835C/837C
1-2-5. TAPE AND WIRE DRESSING
DISASSEMBLY
TAPE
XBR-43X830C, 49X830C, 835C, 837C
TAPE
44
Page 45
1-2. XBR-49X830C/835C/837C
1-2-6. TAPE AND WIRE DRESSING
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
TAPE
TAPE
45
Page 46
1-2. XBR-49X830C/835C/837C
1-2-7. SPEAKER BOX ASSY (L)
2 3
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
SPEAKER BOX ASSY (L)
46
Page 47
1-2. XBR-49X830C/835C/837C
1-2-8. SPEAKER BOX ASSY (R)
2 3
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
SPEAKER BOX ASSY (R)
47
Page 48
1-2. XBR-49X830C/835C/837C
1-2-9. TAPE
TAPE
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
TAPE
48
Page 49
1-2. XBR-49X830C/835C/837C
1-2-10. BT ANTENNA
DISASSEMBLY
1
2 4
Screw (SCREW (+PSW) (M3X6))
P/N: 2-990-421-41
XBR-43X830C, 49X830C, 835C, 837C
BT ANTENNA
3
49
Page 50
1-2. XBR-49X830C/835C/837C
1-2-11. SMART CORE
DISASSEMBLY
Notes on assembling the Smart core
1
2
SMART CORE
XBR-43X830C, 49X830C, 835C, 837C
Front View of the TV
50
Page 51
1-2. XBR-49X830C/835C/837C
1-2-12. SWITCH UNIT
2 3
DISASSEMBLY
1
Release the lock
XBR-43X830C, 49X830C, 835C, 837C
SWITCH UNIT
51
Page 52
1-2. XBR-49X830C/835C/837C
1-2-13. HARNESS ASSY (MAIN) AND CONNECTOR ASSY 28P
DISASSEMBLY
HARNESS ASSY (MAIN)
P/N: 1-910-110-22
XBR-43X830C, 49X830C, 835C, 837C
CONNECTOR ASSY 28P
P/N: 1-910-110-21
52
Page 53
1-2. XBR-49X830C/835C/837C
1-2-14. BRACKET,SC (HRN)
DISASSEMBLY
1
2 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
XBR-43X830C, 49X830C, 835C, 837C
3 2
BRACKET,SC (HRN)
53
Page 54
1-2. XBR-49X830C/835C/837C
1-2-15. SLIDE, CLAMP
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
2
SLIDE, CLAMP
54
Page 55
1-2. XBR-49X830C/835C/837C
1-2-16. BOTTOM, FRAME (HRN)
DISASSEMBLY
1
8 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
2 3
XBR-43X830C, 49X830C, 835C, 837C
BOTTOM, FRAME (HRN)
55
Page 56
1-2. XBR-49X830C/835C/837C
1-2-17. BRACKET, SP (LAK)
DISASSEMBLY
1
8 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
2
XBR-43X830C, 49X830C, 835C, 837C
3
BRACKET, SP (LAK)
56
Page 57
1-2. XBR-49X830C/835C/837C
1-2-18. GL4(CH)-STATIC CONVERTER (TV)
2 3
DISASSEMBLY
1
4 screws (SCREW, +PSW M3X6 W12) P/N: 4-256-393-11
XBR-43X830C, 49X830C, 835C, 837C
GL4(CH)-STATIC CONVERTER (TV)
57
Page 58
1-2. XBR-49X830C/835C/837C
1-2-19. SHEET, INSULATION(HRN S)
Notes on assembling the Insulation sheet (HRN S)
DISASSEMBLY
1 2
SHEET, INSULATION(HRN S)
XBR-43X830C, 49X830C, 835C, 837C
58
Page 59
1-2. XBR-49X830C/835C/837C
1-2-20. FLEXIBLE FLAT CABLE 41P (XFB) AND FLEXIBLE FLAT CABLE 51P (XFB)
1
TAPE
DISASSEMBLY
FLEXIBLE FLAT CABLE 41P (XFB)
2 3
XBR-43X830C, 49X830C, 835C, 837C
P/N: 1-848-911-11 (Except BR6)
1-848-926-11 (BR6)
FLEXIBLE FLAT CABLE 51P (XFB)
P/N: 1-848-913-11 (Except BR6)
1-848-921-11 (BR6)
59
Page 60
1-2. XBR-49X830C/835C/837C
1-2-21. BRACKET, SIDE F (MOLD)
DISASSEMBLY
1
2
XBR-43X830C, 49X830C, 835C, 837C
3
BRACKET, SIDE F (MOLD)
60
Page 61
1-2. XBR-49X830C/835C/837C
1-2-22. BRACKET, TOP FL (MOLD)
DISASSEMBLY
1
2
XBR-43X830C, 49X830C, 835C, 837C
3
BRACKET, TOP FL (MOLD)
61
Page 62
1-2. XBR-49X830C/835C/837C
1-2-23. BMFW ASSY
1
< 1 >
< 1 >
DISASSEMBLY
< 2 >
< 1 >
< 1 >
2
3
< 1 >
< 1 >
< 3 >
8 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
BMFW ASSY
XBR-43X830C, 49X830C, 835C, 837C
62
Page 63
1-2. XBR-49X830C/835C/837C
DISASSEMBLY
1-2-24. GASKET (BMF)
Stick GASKET inside the guide line.
GASKET (BMF)
GASKET (BMF)
NOTE:
When you replace a BMFW board, it is necessary to
stick five new GASKET on a new BMFW board.
GASKET (BMF): 4-566-117-01
To stick the GASKET firmly,
Press the gasket until compression completely.
(0.5-1.0kgf)
Caution:
1. Please aim at the center of square land.
2. Assy the gaskets just before B board panel installation.
XBR-43X830C, 49X830C, 835C, 837C
Guide line
*No indication of direction
63
Page 64
1-2. XBR-49X830C/835C/837C
1-2-25. SHEET, THERMAL(BM)
DISASSEMBLY
1
SHEET, THERMAL(BM)
XBR-43X830C, 49X830C, 835C, 837C
2
64
Page 65
1-2. XBR-49X830C/835C/837C
1-2-26. PLATE, MAIN S(HRN)
1 2 3
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
PLATE, MAIN S
(HRN)
2 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
1 2 3
PLATE, MAIN S
(HRN)
2 screws (SCREW (+PSW) (M3X6)) P/N: 2-990-421-41
65
Page 66
1-2. XBR-49X830C/835C/837C
1-2-27. SLIDE, CLAMP
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
2
SLIDE, CLAMP
66
Page 67
1-2. XBR-49X830C/835C/837C
1-2-28. LCD PANEL
LCD PANEL
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
67
Page 68
1-3. SMART CORE
1-3-1. WLAN / BT MODULE(11AC) ASSY
DISASSEMBLY
1
XBR-43X830C, 49X830C, 835C, 837C
2
WLAN / BT MODULE(11AC) ASSY
68
Page 69
1-3. SMART CORE
1-3-2. WLAN / BT MODULE(11AC)
DISASSEMBLY
3
2
1
2
WLAN / BT MODULE(11AC)
XBR-43X830C, 49X830C, 835C, 837C
1
Caution!
Avoid touching on this components
and connector
69
Page 70
1-3. SMART CORE
1-3-3. SHEET, THERMAL (SC)
DISASSEMBLY
1-3-4. HEAT SINK L (SC)
1 2
1 2
SHEET, THERMAL (SC)
HEAT SINK L (SC)
XBR-43X830C, 49X830C, 835C, 837C
70
Page 71
1-3. SMART CORE
1-3-5. COVER, TOP
DISASSEMBLY
1
2
XBR-43X830C, 49X830C, 835C, 837C
COVER, TOP
71
Page 72
1-3. SMART CORE
1-3-6. PANEL, ORNAMENT
DISASSEMBLY
1
2 3
XBR-43X830C, 49X830C, 835C, 837C
Guide Pin
PANEL, ORNAMENT
Hook
72
Page 73
1-3. SMART CORE
1-3-7. LIGHT, GUIDE
DISASSEMBLY
1
2 3
XBR-43X830C, 49X830C, 835C, 837C
LIGHT, GUIDE
73
Page 74
1-3. SMART CORE
1-3-8. HSC3_S_M MOUNT
DISASSEMBLY
3
1
2
Hold on this section when
installing H-Board
HSC3_S_M MOUNT
XBR-43X830C, 49X830C, 835C, 837C
Avoid holding or push on these components.
74
Page 75
1-3. SMART CORE
1-3-9. CASE, BOTTOM (M)
DISASSEMBLY
XBR-43X830C, 49X830C, 835C, 837C
CASE, BOTTOM (M)
75
Page 76
SEC 2. ADJUSTMENT
item,
HOW TO ENTER THE SERVICE MODE
1) Turn on the main power switch to set in standby mode.
2) Press the buttons on the remote commander in the following sequence
with each interval within 1 sec, then the service mode will be set.
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.
Function The flow of control
Service mode on <Display><5><Vol Up><Power>
Service mode off <MENU>/<HOME>
Item up / down
Item select left/right <←>/<→>
Execute <OK>
<↑>/ <↓>
5) After entering service mode, then turn off the power switch.
Summary of key behavior
Key
Menu
Cursor/Enter
Close service menu
Return Previous page, Change potion of focus
Enter next page of focus item, etc..
Behavior
XBR-43X830C, 49X830C, 835C, 837C
[</>] Set [Home]Exit
Return
Return to previous page, close service menu etc..
76
Page 77
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
2) Press “Enter” or “Return” button to return to Service Mode.
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
Service Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
Service Mode
[</>] Set [Home]Exit
>>
>>
>>
>>
>>
>>
>>
[</>] Set [Home]Exit
>>
>>
>>
>>
>>
>>
>>
>>
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
XBR-43X830C, 49X830C, 835C, 837C
77
Page 78
SERIAL NUMBER EDIT (1)
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 “Enter” or “→” button
3) Press “↑” or “↓” to input numbers.
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
Service Mode
>>
>>
>>
>>
>>
>>
>>
ADJUSTMENT
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.
Status Information
Model Information
Model Number Setting
Serial Number Edit
Status Information
Model Information
Model Number Setting
Serial Number Edit
Input Data correct?
Yes No
[</>] Set [Home]Exit
Mode
_ _ _ _ _ _ _
Service Mode
9 9 9 9 9 9 9
>>
>>
>>
>>
>>
>>
XBR-43X830C, 49X830C, 835C, 837C
78
Page 79
SERIAL NUMBER EDIT (2)
<[ ]>
Model Number Setting
KDL-40X500B
Serial Numbe r Edit
9 9 9 9 9 9 9
Service Mode
Status Information
>>
Model Information
>>
<[ ]>
Model Number Setting
KDL-40X500B
Serial Numbe r Edit
9 9 9 9 9 9 9
Service Mode
Status Information
>>
Model Information
>>
Yes No
Input Data correct?
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.
ADJUSTMENT
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.
XBR-43X830C, 49X830C, 835C, 837C
79
Page 80
ADJUSTMENT
_ _ _ _ _ _ _ _ _ _ _ _
OK
[MODEL_NUMBER_SETTING]
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)
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.
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
Tuner
Wifi
Service Mode
>>
>>
>>
>>
>>
>>
>>
[</>] Set [Home]Exit
Status Information
Model Information
Model Number Setting
Serial Number Edit
Service Mode
>>
>>
>>
>>
XBR-43X830C, 49X830C, 835C, 837C
80
Page 81
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
Tuner
Wifi / BT
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
General Setting
WB ADJUSTMENT
(Please apply when 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.
XBR-43X830C, 49X830C, 835C, 837C
81
Page 82
ADJUSTMENT
>>
>>
>>
>>
>>
>>
>>
Service Mode
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 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.
XBR-43X830C, 49X830C, 835C, 837C
82
Page 83
ADJUSTMENT
>>
>>
>>
>>
>>
>>
>>
General Setting
Tuner
Wifi / BT
Service Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
Service Mode
Please wait…
<[ NG ]>
Back <<
HDD Performace Check
Result
HDD PERFORMANCE CHECK
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 >>
XBR-43X830C, 49X830C, 835C, 837C
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
>>
>>
[</>] Set [Home]Exit
83
Page 84
HDD RE-REGISTRATION
<[ NG ]>
Back <<
HDD Performace Check
Result
>>
>>
>>
>>
>>
>>
>>
[</>] Set [Home]Exit
General Setting
Tuner
Wifi / BT
Service Mode
Model Information
Self diagnosis History
Video / Audio
Panel / PQ
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.
XBR-43X830C, 49X830C, 835C, 837C
[</>] Set [Home]Exit
84
Page 85
SEC 3. TROUBLE SHOOTING
Bluetooth
Power LED
& does not
to
Stationary
colored
lines or
dots
No video One
No video all
Smart Core no
Bluetooth /
) can't
Wifi & BT Module
(Communi
TEMP
Software
Emitter
Local
UART
3-1. TRIAGE
Chart of triage information
1. Confirm the claimed symptom.
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
XBR-43X830C, 49X830C, 835C, 837C
Reference
B* Board
G* Board
H* Board
K* Board
Speaker
LD* Board
V By One FFC
Tcon
LCD Panel
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
Power Power LD
Audi o
Local
I2C
p p l l
p l
l
p
p
l
l l p
Panel
cation)
Panel
(Backlight)
l
p
No
Power
No White
reponse
remote
(Dead Set)
p p l l p p l p p p
l
p
p
p
l
Video
- missing or distorted
of Inputs
Inputs
p
p
p
p
Remote Network Audio Skype Smart Core
No Remote
l
Wireless
can't connect
l
No Audio
p
l
l
Skype
Can't Work
p
LED (Set is still
alive)
l
(BT)
One Step
Remote
(OSR
connect
l
85
Page 86
3-2. NO POWER
3-2-1. NO POWER-PCU
No Power
TROUBLE SHOOTING
Check STBY 3.3V
C9030
On B* board
OK
B* Board
NG
Replace
Between G* Board to
B* Board Harness
OK
Harness
u-Com Failure
DDCON/LDO
Main Device Failure
NG
G* Board
XBR-43X830C, 49X830C, 835C, 837C
86
Page 87
3-2-2. NO POWER-U-Com Failure (1/2)
START
TROUBLE SHOOTING
Check C9117 Voltage.
Is the voltage >3.0V?
Yes
Check R9186 Voltage.
Is the voltage >3.0V?
Yes
Check OPWRSB
R9179 Voltage.
Is the voltage 0V?
Yes
Check POWER_ON
P-on ucom #pin19
Is the voltage >3.0V?
yes
No
No
No
No
Check +3.3V_STBY
R9144, CN9000 #26pin
Check DC_OFF_DET
IC9018
Check STBY_MHL
R9176 Voltage.
Is the voltage >3.0V?
Yes
No problem
TV set stays in
STBY MHL charge mode.
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 G board and harness.
No
SOC
Muffin
problem
Check MAIN_VCC
R9175 Voltage.
Is the voltage >1.6V?
Yes
Check P_ON_VBUS
P-on ucom #pin11
is >3.0V?
Yes
Check P_ON_#1
P-on ucom #pin13
is >3.0V?
Yes
Check PGOOD_1
R9173 Voltage.
Is the voltage >3.0V?
A
No
No
No
No
G-Board
Change IC9017
Change IC9017
No POWER - DDCON/LDO
Check 1.0V DDCON (IC9008)
Check P_ON_LNB
P-on ucom #pin15
Is the voltage >3.0V?
Yes
XBR-43X830C, 49X830C, 835C, 837C
No
Change IC9017
To the next page
87
Page 88
3-2-2. NO POWER-U-Com Failure (2/2)
From previous page
A
Yes
TROUBLE SHOOTING
Check P_ON_#2
P-on ucom #pin14
Is the voltage >3.0V?
Yes
Check ORESETB
P-on ucom #pin12
Is the voltage >3.0V?
Yes
Check X_SYSTEM_RST
P-on ucom #pin16
Is the voltage >3.0V?
Yes
If PANEL_PWER_ON (R9172) is 0V
Check XRST
P-on ucom #pin17
Is the voltage >3.0V?
Yes
If BL_MUTE (R9174) is 0V
Check BL_ON
P-on ucom #pin18
Is the voltage >3.0V?
Yes
No
No
No
No
No
Change IC9017
Change IC9017
Change IC9017
Change IC9017
Change IC9017
Ucom IC9017 is working OK
END
XBR-43X830C, 49X830C, 835C, 837C
88
Page 89
TROUBLE SHOOTING
3-2-3. NO POWER: DC_OFF_DET check
START
Check Vdd
C9118
Is voltage >5V?
Yes
END
No
Change IC9018
3-2-4. NO POWER: DDCONs check
START
Check fuse
F9xxx
Is fuse OK?
Yes
Check Vcc voltage
C9xxx
Is voltage >12.0V?
Yes
Check Enable pin
voltage
Is voltage >2.5V?
Yes
Change DDCON IC
No
No
No
Check POWER_ON P-on ucom #pin19
(Refer to No Power U-Com Failure)
No Power U-Com Failure
Change Fuse
XBR-43X830C, 49X830C, 835C, 837C
89
Page 90
3-2-5. NO POWER: DDCON check
START
TROUBLE SHOOTING
Check IC9403 Vcc voltage
C9428
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 G board and harness
XBR-43X830C, 49X830C, 835C, 837C
90
Page 91
3-2-6. NO POWER: LDOs check 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
No
Check +3.3V_MAIN DDCON (IC9003)
1.2 No Power U-Com Failure
XBR-43X830C, 49X830C, 835C, 837C
91
Page 92
3-3. STANDBY LED BLINKING
3-3-1. 2 Times Blinking (Main power Error)
TROUBLE SHOOTING
3-3-2. 3 Times Blinking (DC Alert)
2-time blinking
Check +12V_REG
at pin 13/15/17 of CN9000
on B* Board,
Voltage > 13.2V ?
No
B* Board
Yes
G* Board
BMFL/BMFW board
3-time blinking
Check +5.0V_MAIN
at pin1 in IC8001, 4.959V
<Voltage<5.285V?
OK
TUNER
Go to Tuner check point
NG
DC_ALERT
IC9014,etc
(B* Board)
AUDIO
Go to Audio check point
HDMI
Go to HDMI check point
XBR-43X830C, 49X830C, 835C, 837C
92
Page 93
3-3-3. 3 Times Blinking (Tuner Error)
BMF* board
3-time blinking
TROUBLE SHOOTING
Tuner Error ?
No
See other flows
Yes
Check the voltage of Main Tuner I2C / JL6010, JL6011
Check the voltage of Sub Tuner I2C (EU,JP only) / JL6021,
JL6022
NG
[except JP:R6001,R6002,C6004,C6005,R1468,R1469]
[JP,EU:R6003,R6004,C6006,C6007,R1466,R1467]
[JP only:R6005,R6006]
[If these parts are OK, check Muffin]
OK
Check TU_3.3V / JL6005
Check TU_1.8V (except UC) / JL6006
Check TU_DEM_3.3V (except UC) / JL6019
Check TU_1.1V(JP/FB6800 tuner-side)
NG
[FB6001,C6002,C6003]
[FB6004,C6014,C6015]
[FB6006,C6020,C6021]
[FB6800,C6800]
[If these parts are OK, go to DDCON troubleshooting]
OK
NG
Check TU_12V(EU,JP only)/JL 6027
[go to “NO PICTURE@Tuner”]
OK
[Change Tuner Module](UC:TU6000,PAD/LA-ISDB/CH/HK:TU6001,EU:TU6003,JP:TU6802)
XBR-43X830C, 49X830C, 835C, 837C
93
Page 94
3-3-4. 3 Times Blinking (Audio Error)
TROUBLE SHOOTING
LED 3x blinking
Audio Error ?
Yes
Go to page
Power Off Checking*1
Go to page
Power off Checking*2
No
See other flow
Segment “XS”?
No
Yes
Replace B-K Harness
OK ?
No
Replace K-PWB
OK ?
No
Replace B-PWB
OK ?
Yes
Yes
Yes
B-K harness NG
K-PWB NG
B-PWB NG
XBR-43X830C, 49X830C, 835C, 837C
94
Page 95
1) Power Off Checking*1
Power Off Check*1
Segment “XS”?
Yes
No
(1) B-PWB
PVDD-GND short ?
(See Note 1)
Yes
(1) PVDD-GND short check
Measure impedance between PVDD and GND at C7706,
C7707.
If impedance is <100Ω → NG
(2) LDO out short check
Measure impedance between +3.3V and GND at C9130.
If impedance is <100Ω → NG
(3) Fuse open check
Measure impedance of fuse F7700, F7702 5A (12.5V)
If fuse open → NG
(1) K-PWB
PVDD-GND short ?
(See Note 2)
Yes
TROUBLE SHOOTING
Note 2: Note 1:
(1) PVDD-GND short check
Measure impedance between PVDD and GND at C7722, C7762, C7782,
C7834.
If impedance is <100Ω → NG
(2) LDO out short check
Measure impedance between +3.3V and GND at
C7909.
If impedance is <100Ω → NG
(3) Fuse open check
Measure impedance of fuse
F7702, F7704, F7705, F7701 5A (12.5V)
F7700 3.15A (DDC5V)
If fuse open → NG
Power Off Check*3
No
(2) B-PWB
LDO out short ?
(See Note 1)
No
(3) B-PWB
Fuse broken ?
(See Note 1)
No
XBR-43X830C, 49X830C, 835C, 837C
Yes
Yes
Replace B-PWB
No
(2) K-PWB
LDO out short ?
(See Note 2)
No
(3) K-PWB
Fuse broken ?
(See Note 2)
No
Yes
Yes
Replace K-PWB
Measure the Speaker
impedance by multi-meter
Less than 3Ω ?
No
Confirm the speaker
harness
Cut or shorted
to the chassis ?
No
Return to LED 3x blinking
or Power Off Checking*3
Yes
Replace Speaker
Replace Speaker Harness
Yes
95
Page 96
2) Power Off Checking*2
Power Off Check*2
Segment “XS”?
No
(4) 12.5V check
12.5V is supplied to
B-PWB for a moment
before LED 3x brinking ?
No
Yes
Yes
(5) 12.5V check
12.5V is supplied to
K-PWB for a moment
before LED 3x brinking ?
No
Yes
TROUBLE SHOOTING
(4) 12.5V check BMFL / BMFW
Measure voltage between PVDD and GND at
capacitor C7706 or C7707.(See 3.3)
Voltage rise more than 0V for a moment at
power on
→ Yes
(5) 12.5V check KS-PWB (XS)
Measure voltage between PVDD and GND at
capacitor C7722, C7762, C7782 or C7834. (See
3.3)
Voltage rise more than 0V for a moment at
power on
→ Yes
Replace B-K Harness
OK ?
No
Replace G-PWB
OK ?
No
Return to
LED 3x blinking
XBR-43X830C, 49X830C, 835C, 837C
Yes
Yes
Finish
Replace G-K Harness
OK ?
No
Replace G-PWB
OK ?
No
Return to
LED 3x blinking
Yes
Yes
Finish
96
Page 97
3) Power Off Checking*3
No Sound
Without LED 3x
AV receiver is connected
to HDMI in ?
Yes
Select [External Inputs]→
[BRAVIA Sync Settings]→
[BRAVIA Sync Control]→[off]
No sound only
Analog RF and Digital RF ?
No
TROUBLE SHOOTING
Yes
Go to
No Sound Tuner
No
[Speakers] setting is
[Audio System] ?
No
Headphone is connected to
HP/Audio Out terminal ?
No
[Sound]→
[Headphone Speaker Link]
setting is [On] ?
No
Go to
Power Off Checking*1
Yes
Yes
Yes
Change the setting to
[TV Speakers]
Disconnect the Headphone
Change [Sound]→
[Headphone Speaker Link]
Yes
to [Off], OK ?
No
Replace B-PWB
HP/Audio out terminal or Headphone detect
GPIO may be broken
No sound only HDMI ?
No
Go to
No Sound Audio
Yes
Go to
No Sound HDMI
XBR-43X830C, 49X830C, 835C, 837C
97
Page 98
3-3-5. 3 Times Blinking (HDMI EQ Error)
BMFL/BMFW board
TROUBLE SHOOTING
3-time blinking
Check
VS GND impedance
of +1.0V_HDMI
at HDMI EQ side
(ex.C5335)
OK
Check
VS GND impedance
of EQ_+3.3V_MAIN
at HDMI EQ side
(ex.C5317)
OK
Check
VS GND impedance
of +5V_BOSTON
at HDMI EQ side
(ex.C5351)
NG
NG
NG
IC5212
IC5212
IC5212
Check
I2C_C bus signal.
at CL5259 and
CL5261.
OK
Check
Voltage
of +1.0V_HDMI,
EQ_+3.3V_MAIN,
+5V_BOSTON
at HDMI EQ side
(ex.C5335, C5317,
and C5351, )
OK
Check
Frequency of X’tal
(X5202)
27MHz?
OK
NG
NG
NG
IC5212
Or IC1000
Power,
DDCON
X’tal or
around parts.
X5202,
R5478(100ohm),
R5368(1Mohm)
C5298(10pF)
C5297(12pF)
OK
XBR-43X830C, 49X830C, 835C, 837C
IC1000
98
Page 99
3-3-6. 4 Times Blinking (LED Voltage Error)
4-time blinking
Between 0.898V to 2.997V
TROUBLE SHOOTING
on the B* Board
0.897V or less
Check
R9027
B* Board
LED driver or G* board
Change LD board or G* board.
XBR-43X830C, 49X830C, 835C, 837C
99
Page 100
3-3-7. 5 Times Blinking (Panel Communication Error)
5-times blinking
TROUBLE SHOOTING
Check
“+12.5V_TCON” at
CN9000
on the B-Board
OK
Replace the Harness
Between G-Board
and B-Board
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
B-Board
Symptom
improvement
B-Board is
suspicious
NG
Panel (T-con)
Panel (T-Con) is
suspicious
Change
Symptom
improvement
XBR-43X830C, 49X830C, 835C, 837C
100
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