LCD-TV Chassis Model GA46UO LT-P468W SERVICE Manual LCD-TV CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignment & Adjustments 5. Troubleshooting 6. Exploded View & Parts List 7. Electrical Parts List 8. Block Diagram 9. Wiring Diagram 10.
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Samsung Electronics Co.,Ltd. ❈ This Service Manual is a property of Samsung 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Kyungki-Do, Korea, 443-742 Electronics Co., Ltd. Printed in Korea Any unauthorized use of Manual can be punished P/N : BN82-00116C-00 under applicable International and/or domestic law.
A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. LT-P468W...
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Use only an anti-static solder removal device. Some brushing clothes together, or lifting your foot from solder removal devices not classified as “anti-static” a carpeted floor can generate enough static can generate electrical charges sufficient to damage electricity to damage an ESD. ESDs. LT-P468W...
•Treble control Range : -10 ± -12dB ~ +10 ± 12dB •Output frequency : RF -> 50 Hz~15 kHz V -> 20 Hz~20 kHz •EQ : -10 ~ +10dB •Designs and specifications are subject to change without prior notice. LT-P468W...
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2 Product Specifications 2-2 Timing Chart 2-2-1 LCD Panel mode You can have the optimum display in the same mode as the panel pixel. Table 2-1 Timing chart LT-P468W...
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Cancellation method : - Power off => On, Factory reset => Power On d. Factory OSD Main Menu Factory 01. uPD64083 02. VSP9437 03. FLI 2310 04. Gm1601H 05. DNIe PRO 06. OPTION 07. Bus Stop 08. Panel Adjust 09. Reset Check Sum : 0000 03/19T-GAIA 46NKR-1001 LT-P468W...
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: Specifies a vertical aperture compensation convergence point. 3. YPFT : Specifies the Y pecking filter(BPF) center frequency 4. YPFG : Specifies a Y peaking filter gain. ❈ Vertical Sharpness Enhancement : VAPGIAN, VAPINV ❈ Horizontal Sharpness Enhancement : VPFT VPFG LT-P468W...
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96 [15:14] 96 [13:11] APK-2nd-HPS Denoise-HPS 96 [10:9] Y/C Delays 6B [12:8] -16~15 19 [6bit] 7B [6bit] RGB Brightness RGB Contrast Wertical Peaking By-pass : 16 LTIM ❈ Adjusted data should be saved saparately according to each input mode. LT-P468W...
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Gamma Tbi 0~12 H Sharpness V Sharpness 0~12 ❈ PC (Mode-6) Mode Adjustment : PC Analog “Grey Scale Pattern” to Auto Color adjustment. ❈ Component (Mode-4,5) Mode Adjustment : Compoent 480p, 1080i Mode to Auto Color DNIe White Balance adjustment. LT-P468W...
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AV Snd Delay DTV Snd Delay Channel Video Mute On Anynet Inch 46 Inch Video Recall 07. Bus Stop 08. Panel Adjust 1. ANA DIMMING 2. PWM DIMMING 3. 12C(ANA DIMMING) CHECK 4. 12C_Mean_OFS 09. Reset - Reset to initial condition LT-P468W...
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-. Turn Micom Software Offset when entering 480i after adjustment in 480p 4. 1080i Mode White Balance adjustment (Color axes adjustment or Low Light brightness adjustment) -. Turn Micom Software Offset when entering 720p after adjustment in 1080i. LT-P468W...
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6 Exploded View and Parts List ❈ You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ LT-P468W...
7 Electrical Parts List ❈ You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 7-1 Main PCB Parts Level Loc. No. Code No. Description Specification Remarks LTP468WX/XAA E22-LTP468WX/XAA SEC,LTA460H1-L01 BN94-00595A ASSY PCB MAIN GA46UO 2305-000665...
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Pin 3 of main board CN806? Does the 4V appear at Check main power. Pin 1 of main board CN806? Does the 5V appear at Pin 3, 4 Check SMPS board. and 5 of main board CN801? Check Sub MICOM. WAVEFORMS LT-P468W...
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R706 (H Sink) and Check IC501 and related circuit. R707 (V Sink) of IC702? Does the signal appear at Pin R758 (V Sink), Pin R757 (H Sink) Check IC702 and related circuit. and Pin R756 (DE) of IC702? Replace LCD panel. LT-P468W...
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R706 (H Sink) and Check IC501 and related circuit. R707 (V Sink) of IC702? Does the signal appear at Pin R758 (V Sink), Pin R757 (H Sink) Check IC702 and related circuit. and Pin R756 (DE) of IC702? Replace LCD panel. LT-P468W...
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R706 (H Sink) and Check IC501 and related circuit. R707 (V Sink) of IC702? Does the signal appear at Pin R758 (V Sink), Pin R757 (H Sink) Check IC702 and related circuit. and Pin R756 (DE) of IC702? Replace LCD panel. WAVEFORMS LT-P468W...
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R706 (H Sink) and Check IC501 and related circuit. R707 (V Sink) of IC702? Does the signal appear at Pin R758 (V Sink), Pin R757 (H Sink) Check IC702 and related circuit. and Pin R756 (DE) of IC702? Replace LCD panel. WAVEFORMS LT-P468W...
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R706 (H Sink) and Check IC501 and related circuit. R707 (V Sink) of IC702? Does the signal appear at Pin R758 (V Sink), Pin R757 (H Sink) Check IC702 and related circuit. and Pin R756 (DE) of IC702? Replace LCD panel. WAVEFORMS LT-P468W...
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11 Schematic Diagrams 11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-1 DVI & PC INPUT TMDS INTERFACE Schematic Diagram HDMI_INPUT TMDS_RE(0:7) HDMI_5V TMDS_GE(0:7) D101 TMDS_BE(0:7) R104 CN101 R101 RX2+ RLZ8.2 R105 DC1R019WDA HDMI_SCL5 RX2-...
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-2 AV INPUT JACK INPUT MUX (AV) Schematic Diagram 5V_IO L211 3.3UH C201 C202 100nF 100uF 16.000 8V_D CN201 jack9p_b FT201 GND_1 SBK201209T-800Y-S TP211 SGM32F1E104-2A BD201 SIG_2...
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-3 TUNER & G/C(JAPAN) 3D-COM FLITER Schematic Diagram 9V_A 33V_A 5V_TUNER L301 L302 3.3UH 3.3UH IC301 MC33269DTRK-5.0 BN40-00038A Ghost Canceller / Japan option C301 C302 C303 82uF...
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-4 VIDEO DECODER/CAP DEINTERLACE Schematic Diagram 1.8V_DEC L401 1.5uH C401 C402 C403 C404 C405 10.000000 100nF 100nF 100nF 100nF 1.8V_DEC C406 C407 L402 22pF C408 C409 22pF 3.3UH...
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-5 Gm1601-SCALER Schematic Diagram +3.3V_LVDS +3.3V_LVDSA +1.8V_DVI +1.8V_CORE +3.3V_IO +3.3V_LBADC +2.5V_DDR +3.3V_LVDSB FSVREF +3.3V_DVI +1.8V_ADC +3.3V_ADC +3.3V_PLL +2.5V_DDR FSDQS FSDATA(0:31) FSDATA(0:31) FSDATA(0) FSDATA(31) FSDATA(1) FSDATA(30) (TMDS FROM DVI_D)
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-6 SUB & I/O MICOM SOUND PROCESSOR Schematic Diagram +5.0V STD_VCC5B STD_VCC5B R601 L601 (32.768Khz, 12.5pf, Throughhole type ) 1/16W 3.3UH BD601 (RTC) SBK201209T-800Y-S IC601 X601 R602 R603 DS1834AS/T.R...
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-7 DINE Pro LVDS INTERFACE Schematic Diagram SNI_DQ(0:63) SNI_ADDR(0:10) SNI_BANK(0:1) +3.3V_D +3.3V_SNI R701 SNI_DCLK FT711 R702 SNI_DQM SGM32F1E104-2A R703 SNI_NCAS R704 SNI_NRAS R705 SNI_NWE C701 15pF C702...
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11 Schematic Diagrams ❈ This Document can not be used without Samsung’s authorization. 11-8 POWER DISTRIBUT FUNCTION JACK Schematic Diagram +12.0V 12V_ANA BD830 IC800 SI4435DY BLM41P600S TP811 SUPLVAL CN801 TP812 D2 6 slcon14p C811 C812 BD831 BLM41P600S +5.0V C813 R850...
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3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LT-P468W monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions : 1. Disconnect the monitor from the power source before disassembly.
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Remove 8 screws from the side BRKT. (right/left, see illustrations) 10. Remove 6 screws from the Ass’s chassis. (top/bottom) This picture is panel. 3-2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. LT-P468W...