NEC NLT-40PAN free download

File name NECNLT40PAN.pdf

SERVICE MANUAL NLT-40PAN 40inch TFT-LCD TV/MONITOR 2007. 09. 15 CONTENTS 1. SAFETY PRECAUTION 2. BLOCK DIAGRAM 2 3 13 16 19 20 21 23 25 37 38 3. GENERAL SPECIFICATION 4. TROUBLE SHOOTING 5. CONTROLS OF FRONT PANEL 6. CONNECTIONS OF BACK PANEL 7. REMOTE CONTROL HANDSET 8. PCB LAYOUT 9. SCHEMATIC DIAGRAM 10. EXPLODED VIEW 11. REPLACEMENT PARTS LIST 1 1. Safety Instructions Important Safety Notice Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Leakage Current Hot Check (See below Figure) Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug of the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS, which is, corresponds to 0.5mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer. AC Volt-meter To Instrument's exposed METALLIC PARTS Good Earth Ground such as WATER PIPE, CONDUIT etc. 0.15uF 1.5 Kohm/10W 2 2. BLOCK DIAGRAM BLOCK DIAGRAM 3 IC FUNCTIONAL BLOCK DIAGRAM (SVP-PX52) 4 IC PIN ASSIGNMENT (SVP-PX52) 5 IC BLOCK DIAGRAM (M30300SAGP#U5C) 6 IC PIN OUT (M30300SAGP#U5C) 7 IC BLOCK DIAGRAM (MSP44/46xyK,PMQFP80-1) 8 IC PIN OUT (MSP44/46xyK,PMQFP80-1) 9 IC BLOCK DIAGRAM (STA335BW) IC PIN OUT (STA335BW) 10 IC BLOCK DIAGRAM (CXA2089Q,QFP) IC PIN OUT (CXA2089Q,QFP) 11 IC BLOCK DIAGRAM (TW9910,QFN) IC PIN OUT (CXA2089Q,QFP) 12 3.General Specification No Item Min 1. Video Input Specification Remark Typ Max Unit 3.579545 / 60 Hz 4.433618 / 60 Hz 4.433618 / 50 Hz 4.286 / 50 Hz Table 1. (Component) 1) NTSC M 2) NTSC 4.43 3) PAL 4) SECAM 2. Component Input 480i/59.94/60Hz 576i/50Hz 480p/59.94/60Hz 576p/50Hz 720p/50/59.94/60Hz 1080i/50/59.94/60Hz 3. RGB DTV Input 480i/59.94/60Hz 576i/50Hz 480p/59.94/60Hz 576p/50Hz 720p/50/59.94/60Hz 1080i/50/59.94/60Hz 4. RGB PC Input VGA (640x480) SVGA (800x600) XGA (1024x768) SXGA (1280x1024) MAC 5. HDMI(DVI) DTV Input 480i/59.94/60Hz 576i/50Hz 480p/59.94/60Hz 576p/50Hz 720p/50/59.94/60Hz 1080i/50/59.94/60Hz 6. HDMI(DVI) PC Input VGA (640x480) SVGA (800x600) XGA (1024x768) SXGA (1280x1024) MAC 8. 9. Input Voltage External Interface AC 100 ~ 240 V, 50hz / 60hz RGB PC