RCA 26LA33RQ Service Manual Download Page 26 | Manualshive

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Summary of Contents for 26LA33RQ

Page 1: ... a For qualified service personne_ only Version 1 _0 Mode_o 26LASSRQ Changing Entertainment Again www rca com ...

Page 2: ...Revision No Revision Date Page Description 1 May 24th 2011 All Initial Release Version 1 0 ...

Page 3: ...F 14_69 CATV 1_135 Digital Terrestrial Broadcast 8VSB 2_69 Digital Cable 64 256QAM 1_135 Storage Temperature is _0 C_ 60 C Operating Temperature is 0 C_ 50 C 4 F _ 140 F _32 F_ 122 F Storage Humidity Less than 85 RH No condensation Operating Humidity Less than 80 RH No condensation AC 110 V 60Hz Cable Antenna x 1 AVx 1 Component x 1 HDMI x 4 AVx 1 Component x 1 PC Audio In x 1 Headphone x 1 Digita...

Page 4: ...ect menu options VOL Increases the volume In the TV menu system it acts like the right arrow on the remote control and can be used to select menu options VOL Decreases the volume In the TV menu system it acts like the left arrow on the remote control and can be used to select menu options POWER O Turns the TV on and off Front Panel Power Standby Indicator Blue and red dual color LED It shows red w...

Page 5: ... audio connector is usually white For mono audio sources be sure to use the leftAUDIO INPUT AUDIO IN R Right audio channel connection The right audio connector is usually red COMPONENT Y Pb Pr Connectadevicethathascomponentvideojacks such as a DVD player To access device connected to the Y Pb Prjack press the INPUT button on your remote then press the up down arrow to select Component Press the EN...

Page 6: ...ontrast Ratio Glass thickness Array CF mm Viewing Angle CR 10 Color Chromaticity Cell Transparency Polarizer CF side Polarizer TFT side SPECIFICATIONS 26 0 1366 768 575 769 323 712 0 1405 H _0 4215 V RGB vertical stripe TYP 850 592 W x 339 8 H x 1 84 D Typ TN Normally White 800 1 Typ Typical value measured at CMOs module 0 7 0 7 80 80 H 80 70iV Typ Typical value measured at CMOs module R 0 653 0 3...

Page 7: ...3 1 Inner Structure Inside cabinet front 4 3 5 5 Version 1 0 5 ...

Page 8: ...106 9 x 11 9 x 1 6 mm 2 3 RE01TC81XLNA0 Main board T RSC8 1X 4 RE46Q H 1500 Power board FS P 150 4 H01 150W 5 RE261530458105 Speakers 8Ohm 10W Note 1 2 22F and dimensions refer to the PCB board 3 2 Main board connection CN9 CN17 CN25 CN5 CNA3 CNA1 Continued in next page Version 1 0 6 ...

Page 9: ...ter Jack To LCD panel inverter board Backtightcontrol CNA3 4 Pin 2 54mm Amplifier power supply jack To power board CNA1 4 Pin 2 54mm Speaker jack To Speaker 3 3 Power board connection CON3 CON4 CON1 Jack List CON1 2 Pin 3 96mm AC input jack To AC power supply Amplifier power supply To main board CON3 8 Pin 2 54mm Backlight power supply To LCD panel backlight inverters CON4 13 Pin 2 54mm Main board...

Page 10: ... 8Pin flat cable Keyboard 26 LCD panel c Z 6 Pin flatcable r 4Pin to 4 Pin J _ AC 110V 50 60Hz flat cable 13Pin to 10Pin flat cable IR board 5 Pin flatcable 4Pin flat cable LVDS double array cable CN17 CN5 CNA3 o CN25 _ _ CN9 CNA1 E _ Left speaker _ R_ght Version 1 0 8 ...

Page 11: ...on Auto turning off o Check the sleep timer setting Check the surrounding diagram of power board The problem is most possibly caused by short circuit or wire breakage because this kind of malfunctions can cause excessive current which will make the power board startup self protection The screen goes black after a shorting blink e If the TV screen can not display after the blink that means the pane...

Page 12: ... out If the screen tearing happens in one or several input sources while the other source can display normally it can be caused by bad mainboard most likely Please change the mainboard for a try Refer to chapter 5 for more details and resolution ways Straight darWlight line s on screen If the bad line is very narrow it is usually caused by LCD panel malfunction change the panel for a try If the li...

Page 13: ...dly The left channel wire should be white and the right channel wire is red Check the audio output socket of mainboard to see whether it is wrongly inserted If not the mainboard audio output module may be bad refer to chapter 5 for more details and resolution ways If the connection is stable and right the mainboard audio output module may be bad refer to chapter 5 for more details and resolution w...

Page 14: ... change the RC board If that still can t solve the problem please refer to chapter 5 for more details and resolution ways with a will to mainboard repairing The RC remote control the same below does not work Check the wire between mainboard and RC board watch if there is fracture or cladding material breakage Check the joint of mainboard and RC board wire watch if there is poor soldering or fake s...

Page 15: ...er Yes Does the pin1 is UI6 FLASH indicator light of CN25 have 5VSB power supply IC s voltage OK upgrading failed Yes Check power board or connecting wires _ower board work iormal after turning on the No Is the p2 of CN25 Pon high Ch20 _t hu8 _i_n tbr cimrC _itc ft n_ e 1 them or change main board m 1 CheckU16 and FLASH change the FLASH Yes No Yes I hange the power IC 1 or main board FLASH is bad ...

Page 16: ... _ voltage No Yes No Check the voltage Check the power board i Change Q8 or R27 _o___ i ChangeU8 or main board i i Check the LVDS signal of CN17 open or s_ort c rcu t if the open circuit is caused by bad PCB Sho_ Yes Check RN6_RN10 is normal 1 4 ChangeU8 1 ChangeRN6 RN10 1 Version 1 0 14 ...

Page 17: ...set the driving voltage Check if the LVDS cable is bad No Change LVDS cable Yes e if the Yes panel is bad Change LCD panel J No Change main board 1 hk t Check the power supply and _Upgrade firmware or adjust clock circuit of U8 P7 LVDS MAP Version 1 0 15 ...

Page 18: ...ignal input No No No Yes No 1 Check external equipment Set the mute and volume 1 Check the TV speakers 1 Audio power supply circuit 1 is bad change main board 1 Check the MUTB STB circuit if bad change main board Yes Check if p1 2 Yes p35 36 of U20 have output wave No Circuit between U8 and CNA1 is bad change main board Version 1 0 Circuit between U8 and UA1 is bad change main board Change U8 Audi...

Page 19: ...5 2 Audio Exceptions 5 2 2 No sound TV Refer to NO SOUND 1 Yes Check if the circuit between T1 and U8 is OK Yes Change U8 if that doesnt work change main board No Change T1 tuner 1 Version 1 0 17 ...

Page 20: ...e HDMI OK 1 Unsupported signal change input signal of HDMI device Yes Check if the PC AV sound is normal No Refer to NO SOUND Yes _ Is the EDID 1 Yes _l _ Upgraded firmware Change U7 or U8 or main board Note I EDtD means Extended Display Identification Data Version 1 0 18 ...

Page 21: ...bad change main board I2C network is bad change main board Yes Check if p12 ofT1 have normal voltage No IF l or AGC 2 circuit is most likely bad change main board Yes ofT1 has output signal No T1 tuner is bad change T1 Yes Check if between T1 output U8 is OK J Yes Note 1 iF Intermediate Frequency 2 AGC Automatic Gain Control No Change main board Change U8 1 Version 1 0 19 ...

Page 22: ...5 3 Function Exceptions 5 3 2 HDMI no picture HDMI no picutre or bad picture_ _ No i Change U8 1 Redo the soldering No ha Maintain u7 external apparatus Version 1 0 20 ...

Page 23: ...ions 5 3 3 YPbPr no signal YPbPr no signal J work change main board Check the YPbPr AV device J or YPbPr cables U8 surrounding circuits are bad change main board U8 front circuits are bad change main board Version 1 0 21 ...

Page 24: ...pgrading Note DO NOT power off or unplug the TV while upgrading 6 2 Factory upgrading need normal display STEP1 Get an empty USB disk with size not larger than 2GB copy firmware file AIICompBase bin only to the root directry of disk Note the size of USB disk can not be larger than 2GB and before copying the firmware file make sure the disk is empty And the file must be placed in the root directry ...

Page 25: ...Main Board PCB ...

Page 26: ...C_rCD uuuL _ Juu CDCeO 0 5 0 u 2 _2 77o _ 7_7 _ I I_ rl l l l 2 zs 7 IIIIIIIIIIIIIIIIIIIl IIIIIIIIIIIIIIIIII I E3 _2e J _LJ T 7 _ s fTrq i fir T 5 jtJ ULJ 77j 7 37n r rq nrq s i_s Cf i LJ U U ULI 7 7 ii _i _ _Tu u _223 ff 225 _Oc E3f Y_F CD_ o4 _ _ R _ _ R 5 a22_R2_ 5 L 7 _ r S _0 _4 2_3_23 x 9 S S v 2 2e _zv b t_ J L c L n S_ s IIIIIIIIIII F_ mr_ a2os os S _ _ _ OSB ...

Page 27: ...Main Board PCB ...

Page 28: ...TIONi _m JLJ _ I_ _ _ uo cs X7 o N u _l_ 2 c LjL _s E _ _ I L L _E3 t uu_ _L_JUU C b I J L E3 u ES _ _ E _ L_ _rfl y I Lj f nr_ _nr_r7 _ _ 3E2 I __ _ _ _uuuut J uUUUbUu _UULUU UU_ i E_ c_ _E_ _0 B E r_mnnn o_o_ 0 r_r_ r_r_ O0 O0 __ uut J uu_ t so I I _ _ _ EXT HDMI E _ _ E _ _ S_ n _uuu OIl Ounun Oununmot r r _ rtic0 c_00 _ I _ __ m m m m _ U SPEAKERS U U U C_on onL J L J u t _mOun JL at JL Ju _ t...

Page 29: ...Z 1117H _ad J TR E 1 A DD 12 2 I _vo _ _ r T G2N D I00ttF 16_ _27 P b 6 7 105 htF 0603 YSX C 8 P 6 20 10V U6 C611 3 VO 2 4 VO _RI6 I0ttF 0805 X5R I 0 6 3V AZI 117H d J TR E 1 120ot m 0402 t 1 1o V 56ohm 0402 5 1 1o V L2 T RI 2 G2N D GND i T GND VDDI8 N_ 3 9 470t_16V 20 8 1 105 7 100tiF 16V _20 6 7 105 T D U3 AZ 1117H 3 3 TR Et _ 1 0 htF O_2 y _ 8 6 2 P 6 16X GND 33V STB TT 0 1uF4 g02 YSV480 20 16V...

Page 30: ...RP_ 5 1 1o V 1Kohul 0402 sq 1 1 16W 6K8ohm vRP_ 5 1 1o V tKohm 0402 5 Ii16W 3IC otm M02 5 1 16W 75olnn lM02 _5 Ii16W 75olnn lM02 _5 Ii16W 33 STB _ Lc119 3IC3dm M02 5 I Io V 3K3dnn g02 5 l_V 33pF 0dO2 NPO i5 50V PMLIAI48L 4K7ot_n 0402 _5 I I_V G2XD 100o17an 0402 5 I I6W P 318 X X 10Kotm OaO2 5 1 16W 510ohul 0d02 _5 lq6W PMBT39 _ 300ohul 0d02 25 0 htF 0dO2 Y527 80 20 1o R28 X X 10Kotm 0_2 5 V_ Ii16W...

Page 31: ..._ _5 1 16W NDAI FI4 N LI U8H ASEBRKAK N Ab_ b IDO L_V SICLI MODEO i i i i i i i i i i i i i i i i i i i GI5 I 7 STB _ 316 D DAT FI D vD IR _GI AS VO FI6 ASEMD0 _E16 TI STN EH TV __ D16 T_I _DI5 TOO iN INb an v O2 5 t 16W 25MHz 20PPM 20PF HC 49S HI_6 _YI 33pF 0dO2 NPO _5 50 _ R250 33pF O402 NPO 5 50 R249 220olnn 0_2 5 1 16W 33V STB R253 O_ T Q23 _315 RESET N _ _l J14 100ohm _P_ _ H6W NCq 00Kolml 01...

Page 32: ...x 2 2 OND m G D 16 4092 15 Y LI 14 D Z U 13 AtNL0 12 AVI LI_ 11 PC AL 10 ASW0 9 AS_V1 PI2 A PI22 R74 R91 R87 Q1 I II c_ C P4 R6 LE E R R92 C89 R23 LINE L 1Kolnn 0dO2 _5 M6W 1Kolm O_2 i5 M6W LINE OUTR 220olm 0_2 5 1 t6W 47Kotun Od02 _5 H6W 15Kohm Od02 _5 1 16_V _R159 R218 G D YH II htF 0603 Y5V 80 20 I0 GND YR YL 100Kolnn MO2 5 1 I6W 100Kolnn O_2 5 1 I6W PC CNI4 R73 YRI RS _ _ _Kotun Od02 _5 1 16W ...

Page 33: ...A RBA66983BG U0 225 A _u It 8 i uF_0603_Y 2 8 3 20 10N7 i uF_0603 Y 7 8_ o 20 10 r y cOML GND RN6 P X I_ 7 _ s RXO0 RXC0 5 6 RXOg RXOI4 a 4 RXOI RXOI 2 RXO1 4 22olm_ o4o2 _ l 1 o V U8E RN7 RXO2 7 _ s RXU2 RXO2 5 6 RXO2 RXOG 3 4 RXC_ RXOC 1 2 RXOG 4 22dnn M02 _ _ 16W RN8 P XU3 7 _ s RXO3_ RXO3 5 6 RXO3 Rm i 2 4 22olm_ O D2 Sgg Iq 6W RN9 POqE1 7 _ 8 PO_I P0_I 5 6 P _Et P0_2 4 POUc2 R ES 2 4 Z_9 o_m ...

Page 34: ... g 16X 0 htF O_2 Y5V 8_ 6 20 16V AVDD33 O hlF 0dO2 Y5_ c 80 20 16V 1 1 1 v 2 htF 0dO2 Y5_ c 80 20 16V C188 C189 CI90 hlF IMO2 Y5X c 80 20 16X T T T _ tF 0805 Xq_ t 0 6 3 X7 _L CI86 1 0 htF 0_2 Y 80 20 16_ 0 htF 0_2 Y 8 P b 2 Bb 16_ _ _9_ 7Y V 80 20 16X C194 8086 2086 1o V 8 B b 2 Bb 16_ 11 CI93 C195 i CI97 V O ND 8 8V 2 7V 0 luF O402 Y _ 80 2 16_ _CI98 END EXT CS 10uF 0805 Xq_ t 0 6 3 G D G6 H6 J7...

Page 35: ... R137 _ DR_2 AS _N4 800o0 _R_ 80001 _T4 SDDO2 _P3 SDDO3 _q2P2 0DO4 aR4 SDDQ5 _T3 80005 ___P4 00o7 _P8 SDDO5 _T5 0DO9 _R7 S00010 _P6 00011 _R6 SDDO12 _ _P7 S00013 j_2_8 80DQ14 _P_8 SDDO15 LP_S SDDM0 _6 SDDMI _P5 800OS5 _5 800085 1R7 SDDQS1 _ SDDQS1 N TP6 TP7 SDDOS0 N SDDQSt SDDOS N DDR2 SDRAM DDR2 800 2 1ayers iGbit 64Mwords x 16bits SDDQSO SDDQSI SDDQSO N SDDQSIN 80000 80005 80DO1 H7 s00o4 _B 0DO6...

Page 36: ...13 IFN R58 X X R59 XA 14 11_ R235 CI39 PI2V UI2 TU _ _ _ VI _ VO _ i0 I 100ohln _ 2 _5 1 16TV G t _ 0 0htF 0_2 X7R t 0 50 C1 100ohm _ 2 _5 H6W T i r T _ 0 0hlF 0 02 XTR t 0 50 O I _ R236 7203 0 hff OtO2 Y _ 8 P b 20 1o UT 778D05L 100uF 16V 20 6 7 105 0 hff 0_2 Y 80 20 1o TU 5V 0V 1 TU SDA Ttd _9_ Ttd _DA IF AC R238 A X 1 FgN A X 0ohm 0d02 _5 1 1oWV I 0 0hff 0t02 Y52 c 80 20 16_ 2K2olmi O_2 _ H 6TV...

Page 37: ... RM G _D LOUT R_ I RaJr RA2 6 4 2 3 5 7 KS3 5 IC125 m G _D NC Ooln m 0033 3 1 t0W NC Ooln n 0603 3 1 10W NAt F __H_O 2K2ohm Wo03 _5 Ii10W 100ohm _02 __ Iit6W 0 htF 0dO2 Y5_ c 80 20 16_ _ RM7 _p MUTE G_ D tA1 __ 2A6 __ 241J334 12sc320 GkND470ttF 35V 20 10 13 105 8 CA15 CAle tAP_ 0 htF 0603 Y5V 80 20 50V CH8010U 220K 04_ G 241 J334J2SC320 470uF 35V 20 10 13 105 I LLI QA2 24V 24 24 OND EA5 OND T T T ...

Page 38: ..._ _ 2200pF O_ P_ X7R I0 _ 53 _q3 4700pF 0402 X7R I 0 50V 2K2olmi 0402 _5 1 16W 2 2ttF 0603 Y 80 20 10V 1080 IC82 1091 1094 IC95 1097 T T T T T T 10 u F43805 X 5 R 10 6 3V 0 1uF 0402 Y5V 80 2 0 F_ F _402 Y 5V 80 20 g11 _F 0402 Y 5V 80 20 16_ 1uF 0402 Y5V 80 20 16V 0 1uF 0402 Y5V_80 20 16V 0 1uF 0402 Y5V480 20 16V Diff pairi_oedanoel00ohm CON1 21 23 SHELL2 SHELIA tlP DET 5V 6 D DIX DATA DDCCLK XC CE...

Page 39: ...Power Board PCB OLP 8LgB _9 _ o ra 0 0 _9_ 0 0 0 0 gn HX P054C042A AYP418101 029 REV I 0 CEM 1 1 6T 2009 0808 4PCS S 191 5 136MM 2010 0320 L F 0 1 ZOB r I LNO0 T F1 _P LO 4 I I q L o J ...

Page 40: ...Power Board PCB mm miO O m o mUm ill O nO mmmmmm m ...

Page 41: ...1 1 III I 1 U _ _ U F 1 L_I V 1 ga LI F o E _3E_ I E3E3 V E1 III qrq E _v6_ UU III n og_ U gag_o g6_ Ho go _F1F1F1F1 F1 r fir El _r_ _01 1 I 1 I 1U U _o r _U _o U _ 6 9 I__ d _ga t ga E 3_ L_ _E L 0UU0000 mr _ uul_ I I_ oi 1 u _o i_1 I I1 11 1 I I1 I1 i gza r lr 1 _U N _L_ o Lo u j 1 I 1I 1I 1 _U000 g6 s 66W qrq UU LoINO0_ UU nn uu LO1 _1 80l_ 0 lo F1 u_ ...

Page 42: ...1 1 III I 1 U _ _ U F 1 L_I V 1 ga LI F o E _3E_ I E3E3 V E1 III qrq E _v6_ UU III n og_ U gag_o g6_ Ho go _F1F1F1F1 F1 r fir El _r_ _01 1 I 1 I 1U U _o r _U _o U _ 6 9 I__ d _ga t ga E 3_ L_ _E L 0UU0000 mr _ uul_ I I_ oi 1 u _o i_1 I I1 11 1 I I1 I1 i gza r lr 1 _U N _L_ o Lo u j 1 I 1I 1I 1 _U000 g6 s 66W qrq UU LoINO0_ UU nn uu LO1 _1 80l_ 0 lo F1 u_ ...

Page 43: ...Power Board PCB HX P054C042A AYP418101 029 REV I 0 CEM 1 1 6T 2009 0901 4PCS S 191 5 136MM I AYP418101 REV 1 0 I I J L o ...

Page 44: ... Board PCB 1 _ PO54CO42A AYP4L8LOI 029 R_fl l 0 C_ 1 1 8T 2009 0808 4PCS S I91 51L36MM 0 3 8_ _ _ 4 4 4 4 _ _ __ _0 4 4 4 0 0 4 _ _ _ 0_ _ 4 _ _ 0 0 0 _ 4 0 _ 8_ _ F _ _1 _ _ _ F _ F F F I T f_ r_ r_ _ _ t T ...

Page 45: ...Power Board SCH I1N pUT 90 264VAC ...

Page 46: ...2896020 262680000 63292100 183292000 183292100 212896300 PCB DYB 2898 23329801C10 252696000 Bracket 1 213223330 Connecter 4 31265500 Rubber 4 Y4 l 5 1604 Speaker 2 162292200 Bracket speak_ 2 CO 26 CIO Z6061 LII Panel l PCB IR 4293 IRboard 1 t71930100 Lens sensor 1 I 12697000 Front cabinet 1 Pa_ Name Amount I I I I I I I I I I I I I li I l I I I I I I I I I l_Izl 14 I Is I 16 1 f r T I I T r _ T T ...

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