Page 3 - CONTENTS
MODELS: LT-3280D/LT-3780D Page 3 CONTENTS PRODUCT SAFETY NOTICE & SAFETY PRECAUTIONS .................................................................. 5 DISASSEMBLY Disassembly & Panel Replacement .................................................................................................
Page 5 - Leakage current check; . Any resistance below this value indicates an abnormal condition
MODELS: LT-3280D/LT-3780D Page 5 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in television receivers have special safety related characteristics. These character-istics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained byusing...
Page 7 - DISASSEMBLY & PANEL REPLACEMENT PROCEDURE
MODELS: LT-3280D/LT-3780D Page 7 DISASSEMBLY & PANEL REPLACEMENT PROCEDURE AV1-COVER AV2-COVER DTV-COVER STAND-FRAME-COVER 2. PLACE SET FACE DOWN ON A SOFT CUSHION, WITH THE STAND HANGING OVER THE EDGE OF THE TABLE. 3. REMOVE STAND-KIT. S20 : SCREW PH+SW+W M6*21.5 1. REMOVE AV1, AV2, DTV & S...
Page 8 - SCREW WITH STAY-STAND
Page 8 MODELS: LT-3280D/LT-3780D 4. REMOVE BACK COVER KIT. S5 : SCREW BH 4*16TP-P F07:CABLE-CLAMP S14 S5 S5 S5 S5 S5 S5 S5 S5 S5 S5 S5 S5 S5 S5 S14 S10 : SCREW IH M4*8 SCERW WITH CABLE-CLAMP2 POINTS 14 PCS S14 : SCREW FPH M3*8 SCREW WITH STAY-STAND S3 : SCREW BH M4*10 S3 : SCREW BH M4*10
Page 9 - REMOVE WALL MOUNT BRACKET
MODELS: LT-3280D/LT-3780D Page 9 5. REMOVE WALL MOUNT BRACKET 6. REMOVE SHIELD-POWER-SUB & SHIELD-CASEMAIN. SHIELD-CASE-MAIN SHIELD-POWER-SUB S9 : SCREW PHW M3*6 S9 : SCREW PHW M3*6 S16 : SCREW BH+SW M6*12 S9 : SCREW PHW M3*6 REMOVE WALL-MOUNT-BKT,WHILE DEPRESSING THE HANGING PART OF POWER-BKT B...
Page 21 - REVERSE SIDE
MODELS: LT-3280D/LT-3780D Page 21 20. REMOVE FUNCTION-KEY-KIT S17 : SCREW PH+SW+TW M3*6 3 PCS SA-PWB-IR SHIELD-IR-TOP SHIELD-IR-BOTTOM REVERSE SIDE S4 : SCREW BH 3*8 TP-P 3 PCS 21. REMOVE IR-KIT
Page 25 - Initial Setup; Follow the steps below for the initial set-up:; TM; Initialize
MODELS: LT-3280D/LT-3780D Page 25 Initial Setup A. Option Menu Setup Follow the steps below for the initial set-up: 1. Disconnect the HD-4001. 2. Place the Remote control in the “TV” layer. 3. Select the "MENU" display by pressing the "TV MENU" button once. 4. Press the number button...
Page 27 - Circuit explanation
MODELS: LT-3280D/LT-3780D Page 27 Circuit explanation 1 . 1 . 1 . 1 . 1 . V V V V Video circuits ideo circuits ideo circuits ideo circuits ideo circuits It explains the video circuits of LT-3780,LT-3280(Model name of display side only : LT-3780D,LT-3280D).It corresponds to various inputs (PC, Monito...
Page 34 - AUDIO Processor
Page 34 MODELS: L T -3280D/L T -3780D MUTE Circuit (Q301~Q304) SP AUDIO CIRCUIT BLOCK-DIAGRAM for LT-3780/LT-3280 PC AUDIO IN (J304) MonitorLink TM A/V (J500) HDMI receiver (IC500) SiI9993CTG AUDIO DAC (IC302) CS4334-KSZ AMP MP7720DS-Z (IC380) AUDIO Processor MSP3440G(IC301) |( |( |( |( I2S R L 5V_S...
Page 35 - Troubleshooting; Connect all harness correctly.
MODELS: LT-3280D/LT-3780D Page 35 Troubleshooting 1 . 1 . 1 . 1 . 1 . P o w e r f a i l u r e P o w e r f a i l u r e P o w e r f a i l u r e P o w e r f a i l u r e P o w e r f a i l u r e (1)POWER is turned off. (1)POWER is turned off. (1)POWER is turned off. (1)POWER is turned off. (1)POWER is tu...
Page 40 - *When it cannot still fix, it may have a problem with SPEAKER.
Page 40 MODELS: LT-3280D/LT-3780D 3. No audio output generated. 3. No audio output generated. 3. No audio output generated. 3. No audio output generated. 3. No audio output generated. 3-1. No all audio output generated. 3-1. No all audio output generated. 3-1. No all audio output generated. 3-1. No ...
Page 44 - REMOTE
Page 44 MODELS: LT-3280D/LT-3780D Part Number Description 260-320006-011 BAR-BEZEL FRONT 200-320039-0101 BEZEL-FRONT 250-320026-011 BRACKET-PANEL 250-320025-011 BRACKET-POWER 250-000034-011 BRACKET-STAND BASE 250-000033-011 BRACKET-STAND FRAME 250-320003-011 BRACKET-WALL MOUNT 200-370016-0101 BUTTON...
Page 45 - STAND-FRAME PLASTIC COVER
MODELS: LT-3280D/LT-3780D Page 45 Part Number Description 260-370002-011 BAR-BEZEL FRONT 200-370009-0101 BEZEL-FRONT 250-370001-011 BRACKET-PANEL SUPPORT RL (37") 250-370002-011 BRACKET-PANEL SUPPORT TB (37") 250-000034-011 BRACKET-STAND BASE 250-000033-011 BRACKET-STAND FRAME 250-370004-011...
Page 48 - 摘要; DIM; CAD
改定 CHANGE 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 1 b a c d e f g b a c d e f g 改番 副番 品番 標マ |ク 規格 MATERIAL (MI) MARK COCO APP. FROM 改 AND DIMENSIONS 第3角法 * 出図先 尺度 作成日付 M REVISION NO. 理 同 期 * * 摘要 REMARK CHANGE MARK SUB ITEM ITEM 32 33 34 35 作成 照査 設計 検認 69 70 71 79 72 73 74 75 76 77 78 80 図 名 F...
Page 57 - LIVE
改番 副番 品番 標マ |ク 規格 MATERIAL (MI) MARK COCO APP. FROM 改 AND DIMENSIONS 第3角法 DIM INmm * 出図先 尺度 SCALE NTS 作成日付 DATE M REVISION NO. 理 同 期 * * 摘 要 REMARK CHANGE MARK SUB ITEM ITEM 32 33 34 35 作成 照査 DRAWN CHECKED 設計 検認 DESIGNED APPROVED 69 70 71 79 72 73 74 75 76 77 78 80 図 名 SCHEMATIC-DIAGRAM 5 TITLE OF D...
Page 58 - COLD
MB MB MB MMF CE BP CE MB 改番 副番 品番 標マ |ク 規格 MATERIAL (MI) MARK COCO APP. FROM 改 AND DIMENSIONS 第3角法 DIM INmm * 出図先 尺度 SCALE NTS 作成日付 DATE M REVISION NO. 理 同 期 * * 摘 要 REMARK CHANGE MARK SUB ITEM ITEM 32 33 34 35 作成 照査 DRAWN CHECKED 設計 検認 DESIGNED APPROVED 69 70 71 79 72 73 74 75 76 77 78 80 図 名 SCHEM...