Samsung QA65Q90RAK User manual

QLED TV
SERVICEManual
QLED TV Contents
1. Precautions
2. Product specications
3. Disassembly and Reassembly
4. Troubleshooting
5. Wiring Diagram
QA82Q90RAK
Project : QRQ90B
Chassis : QWD90
Model : QA65Q90RAK
QA75Q90RAK
QA82Q90RAK

Contents
1. Precautions....................................................................................................................... 1-1
1-1. Safety Precautions .......................................................................................................................1-1
1-1-1. Warnings.............................................................................................................................1-1
1-1-2. Servicing the LED TV ........................................................................................................1-1
1-1-3. Fire and Shock Hazard......................................................................................................1-1
1-1-4. Product Safety Notices.................................................................................................... 1-2
1-2. Servicing Precautions................................................................................................................. 1-3
1-2-1. General Servicing Precautions ...................................................................................... 1-3
1-3. Static Electricity Precautions .................................................................................................... 1-4
1-4. Installation Precautions............................................................................................................. 1-5
2. Product Specications .................................................................................................... 2-1
2-1. Product Information.....................................................................................................................2-1
2-2. Product specication.................................................................................................................. 2-2
2-3. Accessories................................................................................................................................. 2-14
2-4. Viewing the Functions.............................................................................................................. 2-15
2-4-1. 2019' Concept...................................................................................................... 2-15
2-4-2. Quick Guides..................................................................................................................2-22
2-4-3. The Samsung Smart Remote ...................................................................................... 2-31
2-4-4. Using the TV Controller................................................................................................2-33
2-4-5. RearView & One Connect ............................................................................................2-34
2-5. Supported subtitles ..................................................................................................................2-35
3. Disassembly and Reassemble........................................................................................ 3-1
3-1. TV Disassembly............................................................................................................................ 3-1
3-2. One Connect Disassembly........................................................................................................3-11
4. Troubleshooting .............................................................................................................. 4-1
4-1. Function Control Operation Test............................................................................................... 4-1
4-2. Power............................................................................................................................................4-2
4-2-1. TV POWER STANDBY.......................................................................................................4-2
4-2-2. TV POWER ON SEQUENCE.............................................................................................4-5
4-2-3. One Connect POWER ON SEQUENCE ..........................................................................4-9
4-2-4. OCB Self Power Supply.................................................................................................4-10
4-2-5. BACKLIGHT Dimming Control & BL Supply Path...................................................... 4-12
4-2-6. BACKLIGHT..................................................................................................................... 4-14
4-2-7. Backlight Quick Test...................................................................................................... 4-16
4-3. Video ...........................................................................................................................................4-18
4-3-1. ONE CONNECT ...............................................................................................................4-18
4-3-2. MAIN/T-CON BOARD.................................................................................................... 4-19
4-3-3. PANEL ............................................................................................................................. 4-21
4-3-4. Check Test Patterns......................................................................................................4-22

4-4. Audio...........................................................................................................................................4-23
4-5. Network......................................................................................................................................4-24
4-6. Smart Hub..................................................................................................................................4-25
4-7. BlueTooth / WiFi Module ..........................................................................................................4-27
4-8. Replacing Main Board..............................................................................................................4-28
4-9. Factory Mode .............................................................................................................................4-32
4-10. Factory Mode Adjustments ...................................................................................................4-37
4-10-1. Entering Factory Mode ...............................................................................................4-37
4-10-2. Detail Factory Option .................................................................................................4-38
4-10-3. Factory Data.................................................................................................................4-41
4-11. RS-232C.....................................................................................................................................4-51
4-12. AV Control Tabe .......................................................................................................................4-52
4-13. Updating the TV’s Software...................................................................................................4-59
5. Wiring Diagram................................................................................................................ 5-1
5-1. Wiring Diagram.............................................................................................................................5-1
5-2. Connector.....................................................................................................................................5-8
5-2-1. Main Board........................................................................................................................5-8
5-2-2. LD/SMPS Board............................................................................................................. 5-12
5-2-3. Main Board_One Connect............................................................................................ 5-16
5-2-4. SMPS Board_One Connect .......................................................................................... 5-18

This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished underapplicable
International and/or domestic law.
© 2019 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea

ExplodedViewsandPartsList
1.ExplodedView&PartList
ExplodedView
Copyright©1995-2019SAMSUNG.Allrightsreserved.1

ExplodedViewsandPartsList
PartsList
No.Lvl.Loc.MaterialCodeDescription&SpecicationSNAQty.
11BN95-05486APRODUCTLCD-SDC;
CY-TR065FLLV1V/H,Q90,Bas
SA1
22BN44-00980CDCVSS-DRIVERBOARD;
L65S9NRA_RHS,DC/DC,3
SA1
32BN44-00980DDCVSS-DRIVERBOARD;
L65S9NRB_RHS,DC/DC,3
SA1
42M0014BN94-14716AASSYPCBMAIN;65Q90RA-XV ,BN94-14008SSA1
52BN96-45641CASSYSPEAKERP-FRONT;
TV-SPK,Q90B,6ohm,10
SA1
62BN96-48728AASSYBOARDP-FUNCTIONTACT;Y19Q90
Funct
SA1
72BN59-01314ANETWORK-WLANCLIENT;
WCP730M,78.3x29.3x7.
SA1
82R001ABN96-49062AASSYCOVERP-REAR;
65QRQ90B,PC+ABS+ED20%,
SA1
92BN96-49069AASSYSTANDP-COVERNECK;
65QRQ90B,PP+GF40
SA1
102BN96-49070AASSYSTANDP-COVERTOP;
65QRQ90B,SS400,CA
SA1
2Copyright©1995-2019SAMSUNG.Allrightsreserved.

ExplodedViewsandPartsList
2.ONECONNECTExplodedView&PartList
ONECONNECTExplodedView
Copyright©1995-2019SAMSUNG.Allrightsreserved.3

ExplodedViewsandPartsList
PartsList
No.Lvl.Loc.MaterialCodeDescription&SpecicationSNAQty.
12BN96-45940AASSYCOVERP-OCTOP;
65QNQ9FA,PC,V-2,TP00
SA1
22OC-SMPSBN44-00935BDCVSS-POWERBOARD;
P300NQB_NSM,AC/DC,360
SA1
32BN63-17541AINSULATOR-SMPS;
65QNQ9FA,PC,BLACK,L126.9,
SNA1
42BN63-17538ASHIELD-OCTOP;65QNQ9FA,EGI-SECC,T0.8SA1
52BN94-14012EASSYPCBOC;QRQ85ESA1
62BN96-48511BASSYCOVERP-OCBOTTOM;
65QRQ90B,PC+ABS+G
SA1
4Copyright©1995-2019SAMSUNG.Allrightsreserved.

ExplodedViewsandPartsList
3.ElectricalPartsList
LevelLoc.PartCodeDescription&SpecicationQty.SA/SNA
QA65Q90RAKXXV(FA01)
1S001ABN90-10394MASSYSTAND;QRQ90B1SNA
.2BN96-49069AASSYSTANDP-COVERNECK;65QRQ90B,PP+GF401SA
..3BN63-18002ACOVER-STANDNECK;65QRQ90B,PP+GF40%,HB,BK1SNA
...40103-011475RESINPP;9500G40/9379B,Black,BK0020,HB,G663SNA
..3BN68-05603ALABEL-EPASS;ART,W/W,90g2SNA
..3BN69-08751BPACKINGSHRINKAGE;STAND,PLASTIC,T0.015,W1SNA
..3BN96-49298AASSYACCESSORY-SCREW;65QRQ60T,ALL,W/W,602SNA
...4SCREW6003-001907SCREW-TAPTYPE;BH,+,S,M4,L14,ZPC(BLK),SWR8SA
...46902-003076BAGSCREW;LDPE,T0.05,W70,L90,TRP ,RECYCLE2SNA
.2BN96-49070AASSYSTANDP-COVERTOP;65QRQ90B,SS400,CA1SA
..30201-003279ADHESIVE-AA;UPUV ,CLEAR0SNA
..3BN63-18011ACOVER-STANDTOP;65QRQ90B,SS400,T5,BLACK1SNA
..3RF01BN67-00459AFOOT-RUBBER;STAND,Si,GRAY ,T24SNA
..3BN69-19333ABAGACCESSORY;LDPE,T0.07,W360,L550,TRP ,R1SNA
1BN90-10949AASSYW/I;QRQ90B1SNA
.2BN81-08159ZA/SPARTSET -ELECW/I;LEDTVELECspec-C1SNA
.2BN81-17116AA/SPARTSET-MECHW/I;QRQ90B,Q65RB*1SNA
1R001ABN90-10951GASSYCOVERREAR;QRQ90B1SNA
.2R001ABN96-49062AASSYCOVERP-REAR;65QRQ90B,PC+ABS+ED20%,1SA
..3R001BN63-17995ACOVER-REAR;65QRQ90B,PC+ABS+ED20%,V-1,BK01SNA
...40103-010818RESINPCABS;CM20G/BK00749,BLACK,BK0007,4638SNA
...4BN68-05603ELABEL-RESIN;ART,W8,L50,ULLABEL(COVERR1SNA
..3BN68-09728ALABEL-STICKERW ARNING;55QRQ90B,PET,T0.051SNA
1BN91-21121DASSYONECONNECT;QRQ90B1SNA
.20203-001598TAPE-SINGLEFACE;PP ,T0.15,W12,N/A,CLEAR0SNA
.2SCREW6003-000282SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW3SA
.2SCREW6003-000283SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(WHT),SW11SNA
.26902-002905BAGPE;HDPE/PEFOAM,T0.015/T0.5,W500,L301SNA
.2M0131AA63-01071AGASKET-EMI;EMIShielding,ConductiveTape1SNA
.2M0909AA63-01387AGASKET-EMI;EMIShielding,ConductiveTape1SNA
.2BN02-00102BTAPE-SINGLEFACE;OPP,T0.15,W25,L50M,WHIT1SNA
.2BN39-02437ALEADCONNECTOR-POWER;QN65Q900R,UL21516,21SA
.2OC-SMPSBN44-00935BDCVSS-POWERBOARD;P300NQB_NSM,AC/DC,3601SA
.2BN62-00883APADGAP-THERMAL;QN65Q90RAFXZA,Si,T12.5,L1SNA
.2M0131BN63-02627AGASKET-EMI;Oxford,ConductiveFabric,T8,W4SNA
.2BN63-17538ASHIELD-OCTOP;65QNQ9FA,EGI-SECC,T0.81SA
.2BN63-17541AINSULATOR-SMPS;65QNQ9FA,PC,BLACK,L126.9,1SNA
Copyright©1995-2019SAMSUNG.Allrightsreserved.5

ExplodedViewsandPartsList
LevelLoc.PartCodeDescription&SpecicationQty.SA/SNA
.2BN68-05458ALABEL-BARCODE;ALL,ART,W45,L12,BLACK,WHIT1SNA
.2BN68-07104DLABEL-RATING;Monitor,WW,PP,T0.161,W90,L51SNA
.2BN68-08730ALABEL-EP ASS;QTV ,WW,ART,T0.161,W60,L15,P4SNA
.2BN69-17693CBOXACCESSORY;65QRQ85E,CB,SW-E,NonStand1SNA
.2BN69-18324APAD;55QNQ7FC,EPS,W45,L390,H15,WHITE1SNA
.2BN94-14012EASSYPCBOC;QRQ85E1SA
..3BN97-15524DASSYSMD;QRQ85E1SNA
...4DS01A0401-001056DIODE-SWITCHING;MMBD4148SE,100V ,200mA,SO1SA
...40403-000489DIODE-ZENER;MMSZ5228B,3.705~4.095V ,500mW4SA
...40403-001783DIODE-ZENER;BZB84-C6V2,5.8~6.6V ,300mW,SO3SNA
...40403-001785DIODE-ZENER;NZH5V1B,4.94~5.2V ,500mW,SOD-3SA
...40406-001200DIODE-TVS;RClamp0504F,6V ,1MA V ,TP6SA
...40406-001635DIODE-TVS;SMF5.0A,6.4V ,6.7V ,7V ,200MA V ,2014SA
...40406-001778DIODE-TVS;PUSB3FR4,6V ,9V ,0.2MA V ,0.7VPA,09SA
...40501-000462TR-SMALLSIGNAL;MMBT2907A,PNP ,350mW,SOT-5SA
...40505-002598FET-SILICON;AP2317GN,P,20V ,-4.2A,0.052oh3SA
...40505-002893FET-SILICON;AO4801AS,P,30V ,-5A,2W ,SOIC-81SA
...40601-003620LED-IR;SMDAngleType,1.4mm,200mW,5V ,9402SA
...40903-002242IC-MICROCONTROLLER;UEI1704,QFN,20P,4x4x01SA
...40904-002882IC-USC;GL852G-OHY38,QFN,28P,5x5mm,12MHz,2SA
...41006-001595IC-DRIVER/RECEIVER;UT3221G-P16-R,TSSOP-11SA
...41203-009193IC-DC/DCCONVERTER;SYD113IADC,TSOT23-6,65SA
...41203-009194IC-DC/DCCONVERTER;SYD104IADC,TSOT23-6,63SA
...41204-003777IC-DECODER;SDP1805,FCBGA,490P,21x21x1.541SA
...41205-005519IC-SWITCH;ET20163,SOT23-5,5P,2.95x3.02mm3SA
...41205-005749IC-SWITCH;G2897KD1U,TDFN2X3-14,14P,2x3mm2SA
...41405-001232V ARISTOR;6.4V ,5.6VDC,30A,1608,TP ,19V ,20018SNA
...41405-001381V ARISTOR;11V ,8VDC,30A,1608,TP ,25V ,500pF7SA
...41405-001382V ARISTOR;24.5V ,16VDC,120A,2012,TP ,42V ,404SA
...41405-001452V ARISTOR;15V ,12VDC,8A,1608,TP ,46V ,18pF8SA
...42007-000137R-CHIP;2Kohm,5%,1/16W,TP,100512SA
...42007-000138R-CHIP;100ohm,5%,1/16W,TP,1005,T0.3513SA
...42007-000143R-CHIP;4.7Kohm,5%,1/16W,TP,1005,T0.3512SNA
...42007-000170R-CHIP;1Mohm,5%,1/16W,TP,1005,T0.351SNA
...42007-000171R-CHIP;0ohm,5%,1/16W,TP,1005,T0.3539SNA
...42007-000172R-CHIP;10ohm,5%,1/16W,TP,1005,T0.353SA
...42007-000173R-CHIP;22ohm,5%,1/16W,TP,1005,T0.352SA
...42007-000501R-CHIP;2.2ohm,1%,1/10W,TP,16082SA
...42007-000779R-CHIP;33ohm,1%,1/10W,TP,16088SNA
...42007-001116R-CHIP;680ohm,1%,1/10W,TP ,16082SA
6Copyright©1995-2019SAMSUNG.Allrightsreserved.