Envision L26W761 Service Manual

Text of Envision L26W761 User Guide:

• Envision L26W761, 26’’ LCD TV Envision L26W761 39 PIXOUT21 + C962 NC GREEN_Y5 PIXOUT0 RED_Pr5 PIXOUT16 VCC3_3 LVDS_D2_P 7 PIXOUT5 LVDS_D2_P R511 NC C509 0.1uF LVDS_D0_P R507 33 1/10W 　 R506 33 1/10W 　 RGB_HSYNC_F PIXOUT23 C514 0.1uF C513 0.1uF C516 0.1uF PLL_PVD R501 1K 1/ 10W 　 C510 0.1uF R532 0 OHM 1/10W + C530 22uF/16V R505 100 1/10W 　 PIXOUT[0:23] R504 120 OHM 12 LVDS_D5_P 7 LVDS_D0_N C515 0.1uF LVDS_D1_N 7 PIXOUT12 FIL_VD FB501 0 1/4W 　 VSYNC_IN COAST PIXOUT17 R509 75 1% 1/10W 　 U503A 74LVT14D,118 21 147 PIXOUT7 FIL_VD FIL_VD PI

• 26’’ LCD TV Envision L26W761 21 2. Can not start (LED indicator yellow) NG Re p air the ke y board OK Check 5V SB NG Return to “1” OK Check PWR ON si g nal NG Check U905 , Q906 , 0907 NG Re p lace U905 or Q906 or Q907 Check I 2 C communication OK Check RELAY-SW si g nal NG R

• Envision L26W761, 26’’ LCD TV Envision L26W761 1 Service Service Service Horizontal Frequency 31-60 kHz TABLE OF CONTENTS Description Page Description

• Envision L26W761, 26’’ LCD TV Envision L26W761 55 L6A9 073T 253158 H CHOKE COIL 22UH+/-25% L6B1 073T 253158 H CHOKE COIL 22UH+/-25% 085T 583510 GASKET CN104 088T 78 13 7C RCA JACK CN108 088T 78 13 BC RCA JACK 2*3 B/W/R+R/B/G CN101 088T 78 1321C RCA JACK 1*1 W/R CN600 088T 30211K PHONE JACK CN103 088T 30214K PHONE JACK CN102 088T 35315F H DB15 RIGHT ANGLE FEMALE 090T6068 2 HEAT SINK X401 093T 2262B J CRYSTAL NXS25.000 AC 20PF HC-49/US NSK X901 093T 2286B J XTL NXS4.000AC18F-KAB5 HC49/U-S TU1 094TNTATALL 2T TUNER NTSC+ATSC DTT76832 Q90T0054 1 HEAT SINK Q90T0054 1 HEAT SINK Q

• Envision L26W761, 26’’ LCD TV Envision L26W761 68 R4G3 061T0603472 CHIP 4.7KOHM 1/16W R4B4 061T0603472 CHIP 4.7KOHM 1/16W R468 061T0603472 CHIP 4.7KOHM 1/16W R467 061T0603472 CHIP 4.7KOHM 1/16W R458 061T0603472 CHIP 4.7KOHM 1/16W R443 061T0603472 CHIP 4.7KOHM 1/16W R440 061T0603472 CHIP 4.7KOHM 1/16W R438 061T0603472 CHIP 4.7KOHM 1/16W R436 061T0603472 CHIP 4.7KOHM 1/16W R729 061T0603472 CHIP 4.7KOHM 1/16W R725 061T0603472 CHIP 4.7KOHM 1/16W R715 061T0603472 CHIP 4.7KOHM 1/16W R4S6 061T0603472 CHIP 4.7KOHM 1/16W R4G6 061T0603472 CHIP 4.7KOHM 1/16W R434 061T0603472 CHIP 4.7KOHM 1/16W R433 061T0603472

• 26’’ LCD TV Envision L26W761 22 3. Abnormal display Check the source OK Reset source NG Check signal filter circuit NG Replace the filter or inductance OK Check U108 NG Replace U108 TV signal Check TV system setup OK Check TU1 Replace TU1 NTSC, AV, NG Component, PC signal Check U107 NG Replace U1

• 26’’ LCD TV Envision L26W761 61 C909 067T215Y4707KT 47UF 50V F901 084T 55 4 FUSE 382-5A 250V WICKMANN D916 093T 6038T52T FR103 D913 093T 6038T52T FR103 D909 093T1100 1052T BA159GPT J906 095T 90 23 JUMP WIRE J905 095T 90 23 JUMP WIRE J904 095T 90 23 JUMP WIRE J903 095T 90 23 J

• Envision L26W761, 26’’ LCD TV Envision L26W761 35 9. Schematic Diagram 9.1 Main Board TV1_CVBS3 R731 0 1/ 10W 　 IF_AGC + C733 470uF/ 16V VCC3V3_G9 LOCK C726 560pF + C740 NC R715 4.7K 1/10W 　 + C732 470uF/ 16V TV1_CVBS VCC 5_0 VCC5_0_T1 R730 10K 1/ 10W 　 TV_OUTL712 NC R708 3.3K 1/10W 　 TU_5V_SW9 R2050 470 1/ 10W 　 + C724 10uF/ 16V GREEN FB712 600OHM12 Demodulator U401A ZR39760BGCG-A1 R5 P5 T15 N1 P2 R1 R2 R4 W1 N2 D13 T6 T5 R3 N4 P3 RF_AGC IF_AGC DEMOD_LOCK DEMOD_FAIL SIF_IN IFE_AIN _N IFE_AIN _P PARAM[0] PARAM[1] SI

• Envision L26W761, 26’’ LCD TV Envision L26W761 73 C438 065T0603104 32 CHIP 0.1UF 50V X7R C439 065T0603104 32 CHIP 0.1UF 50V X7R C443 065T0603104 32 CHIP 0.1UF 50V X7R C446 065T0603104 32 CHIP 0.1UF 50V X7R C454 065T0603104 32 CHIP 0.1UF 50V X7R C459 065T0603104 32 CHIP 0.1UF 50V X7R C467 065T0603104 32 CHIP 0.1UF 50V X7R C468 065T0603104 32 CHIP 0.1UF 50V X7R C433 065T0603104 32 CHIP 0.1UF 50V X7R C417 065T0603104 32 CHIP 0.1UF 50V X7R C418 065T0603104 32 CHIP 0.1UF 50V X7R C419 065T0603104 32 CHIP 0.1UF 50V X7R C420 065T0603104 32 CHIP 0.

• Envision L26W761, 26’’ LCD TV Envision L26W761 36 C462 47pF ZD146 ZMM5V6 12 + C181 10uF/16V C468 0.1uF R167 100K 1/10W 　 C4A2 1uF C1B4 100pF/50V VCC3V3_G9 AV Input R152 0 1/ 10W 　 R1D5 75 1% 1/ 10W 　 C1D6 47pF FB112 120 OHM1 2 C4K7 47pF 1 VFE_VBG S1_C C470 0.1uF VFE_VREFP AV1 + C180 10uF/16V TV_CVBS R1D9 75 1% 1/ 10W 　 C4A3 0.1uF C1B3 100pF/50V PC_Audio_R 12 PC_Audio_L 12 VFE_VDD SW1 + C195 22uF/16V R4T1 0 1/10W 　 + C4B7 22uF/16V C460 1uF/25V FB404 150OHM 1 2 +5VSB 0 VFE_Y IN VIDEO_SW19 + C4B8 22uF/16V FB117 120 OHM1 2 FB110 600 OHM C1D4 47pF ZD148 ZMM

• Envision L26W761, 26’’ LCD TV Envision L26W761 11 【Edge Color】: The colors of text edge effects, which provides Red / Green / Blue / Yellow / Magenta / Cyan / Black / White Colors. 8. Component Set: This option only shows and is available in component mode, which provides fine tuning component display, such as: 【H-Position】、【V-Position】, 【Clock】,【Phase】 and【Auto Adjust】.All these items are giving the tuning range from 0 to 10

• Envision L26W761, 26’’ LCD TV Envision L26W761 10 6. Digital Captions: Select the close caption options ( Service 1-6, Text 1-4 and CC 1-4) in digital TV mode. When select service 1 to service 6 you can modulate parameters in the Digital Close Caption. 7. Digital Close Caption: Provide numerous options for setting the digital close caption style. In the sub-menu. 【Style】item can be set as Automatic or Custom mode. If Custom mode is selected, user can modify the detail styles described below. The setting result will b

• Envision L26W761, 26’’ LCD TV Envision L26W761 6 MAIN MENU 2.2 To Use the Menu 1. Press the MENU button to display the main menu 2. Use the cursor up/down to select a menu item. 3. Use the cursor left/right to enter a submenu. 4. Press the OK button to enable/disable the function. 5. Press the MENU or EXIT button to exit the menu. The Setup menu in TV mode shows as below. In others source modes, the Setup menu only shows Menu Language and

• Envision L26W761, 26’’ LCD TV Envision L26W761 63 RP501 061T 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP502 061T 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP503 061T 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP504 061T 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP505 061T 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP410 061T 125150 8 RST CHIP AR 8P4R 15 OHM +-5% 1/16W RP409 061T 125150 8 RST CHIP AR 8P4R 15 OHM +-5% 1/16W RP

• Envision L26W761, 26’’ LCD TV Envision L26W761 65 R104 061T0603103 CHIP 10KOHM 1/16W R4P8 061T0603103 CHIP 10KOHM 1/16W R964 061T0603103 CHIP 10KOHM 1/16W R962 061T0603103 CHIP 10KOHM 1/16W R939 061T0603103 CHIP 10KOHM 1/16W R925 061T0603103 CHIP 10KOHM 1/16W R908 061T0603103 CHIP 10KOHM 1/16W R730 061T0603103 CHIP 10KOHM 1/16W R6F4 061T0603103 CHIP 10KOHM 1/16W R6A3 061T0603103 CHIP 10KOHM 1/16W R6A2 061T0603103 CHIP 10KOHM 1/16W R606 061T0603103 CHIP 10KOHM 1/16W R4S9 061T0603103 CHIP 10KOHM 1/16W R4S8 061T0603103 CHIP 10KOHM 1/16W R4S7 061T0603103 CHIP 10KOHM 1/16W R4K4 061T0603103 CHIP 10KOHM 1/16

• Envision L26W761, 26’’ LCD TV Envision L26W761 20 5. Repair Flow Chart 1. No Power (No LED indicator) NG Check power cord and board interface Plug in power cord and interface OK Check F901, BD901, C907 NR901 NG Replace F901 BD901 C907 NR901 OK Check, Q904 IC904 Check Q901 IC901 D919 D901 D902 L906 R921 NG Replace Q904 IC904 OK Check D903, D917, IC902, Q902 ZD902 OK Replace D903, D917, IC902, Q902 ZD902 Replace Q901 IC901 D919 D901 D902 L906 R921 OK NG NG Check IC903，Q903

• Envision L26W761, 26’’ LCD TV Envision L26W761 62 U261 056T 585 11 AZ1117D-5.0-E1 U601 056T 593 17 NTM2761RB2 U103 056T 614 1 IC 74HC4052D PHILIPS U402 056T 61550C NT5DS16M16CS-5T U600 056T 616 8 TPA6110A2DGNR U260 056T 616 35 IC NJM4580V-TE2-#ZZZB SSOP8 U6A1 056T 616901 IC TPA3005D2PHP PQFP48 U108 056T 625 1 NJM-2244M-TE1/JRC U417 056T 632 1 IC 74HC4066DQ BY PHILIPS U107 056T 634 2 1 PI5V330SSQE PERICOMQSOP-16 U101 056T 638603 IC CS5340-CZZ CIRRUS U401 056T 644 7 IC ZR39760HGCF-A1 PBGA-400 ZORAN U408 056T 645 1 HIN232CB-T S016 INTERSIL U420 056T 652 4 PCA9515ADP TSSOP U

• Envision L26W761, 26’’ LCD TV Envision L26W761 7 1. Contrast: Video contrast adjustment, the tuning range is 0 ~ 100. 2. Brightness: Video brightness adjustment, the tuning range is 0 ~ 100. 3. Sharpness: Video sharpness adjustment, the tuning range is -50 ~ 50. 4. Color: Video color chroma adjustment, the tuning range is 0 ~ 100. 5. Tint: Video tint adjustment, the tuning range is R50 ~ G50. 6. BackLight: Backlight strength adjustment, the tuning range is 0 ~ 10. 7. Settings: Restore the default video settings. AUDIO MENU The Audio menu in TV mode shows as below. It

• Envision L26W761, 26’’ LCD TV Envision L26W761 43 + C423 10uF/ 16V + C415 10uF/ 16V C408 0.1uF Test Pins U401J ZR39760BGCG-A1 T10 E15 C17 E16 E17 D17 T20 R17 R18 L3 L4 C13 C14 M3 M4 C15 A20 A18 A19 B19 T17 P4 D16 D15 R20 R19 T18 T16 U12 Y14 Y11 W2 D6 D7 T11 B2 A2 G5 F5 Y1 T9 U6 B7 C11 C12 C16 B18 C18 B20 C20 T19 U19 W15 Y15 RSVD[0] RSVD[1] RSVD[2] RSVD[3] RSVD[4] RSVD[5] RSVD[6] RSVD[7] RSVD[8] RSVD[9] RSVD[10] RSVD[11] RSVD[12] RSVD[13] RSVD[14] RSVD[15] RSVD[16] RSVD[17] RSVD[18] RSV

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Envision L26W761 Operation & user’s manual 12-11-2023 26

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