NEO tv-1451 free download

File name NEO TV-1451-01.pdf

File name NEO TV-1451-02.pdf

File name NEO TV-1451-SM.pdf

SERVICE CHASSIS: 14CK-4, 21CK-4 MANUAL Contents 1. Specifications 2. Safety Instructions 3. TV Block Diagram 4. Electrical Adjustments 5. IC's Data 6. Parts List 7. Circuit Diagram (2) (2) (4) (5) (9) ( 18 ) ( 29 ) 1. Specifications Receive System : Channel Coverage: Picture Resolution: Picture Tube: Ext.Antenna: Ext.In/Out: Power Consumption: Input Power: Audio Output: Speaker: Remote Control Transmitting System: Power Supply: RF : PAL/SECAM B/G , D/K , I AV : PAL /SECAM/ NTSC3.58/ NTSC4.43 470MHz CATV, 254-Position Channel Memory Horizon > 300, Vertical > 400 37cm (14"), 51cm (21") diagonal Coaxial Cable 75 Audio/Video - In/Out 60W (14"), 70W (21") AC 130V-260V 50Hz/60Hz, AC 90V-260V 50Hz/60Hz (Option) 4W (Mono), 2x3W (Stereo) 16 x2 (Mono), 8 x2 (Stereo) Ў Ў Ў Infrared DC3V (1.5Vx2) 2. Safety Instructions 2.1 X-Ray Radiation Precaution Excessive high voltage can produce potentially hazardous X-Ray Radiation. To avoid such hazards, the high voltage must not be above 31.0KV(14") or 35.0KV(21") under any conditions. The nominal value of the high voltage of this television is 22.5KV(14") or 26.5KV(21") at max beam current (maximum brightness) under a 90-260V, 50/60HZ AC power source. 2.2 Safety Precaution WARNING:Service should not be attempted by anyone unfamiliar with the necessary precautions on this television.The followings are the necessary precautions to be Ў observed before servicing. 1). Since the chassis of this television is directly connected to the AC power line (HOT chassis), an isolation transformer should be used during any dynamic service to avoid possible shock hazard. 2). Always discharge the picture tube anode to the CRT conductive coating before handing the picture tube. The picture tube is highly evacuated and, if broken, glass fragments will be violently expelled. Use shatterproof goggles and keep picture tube away from the body while handing. 3). When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as non-metallic control knobs, insulating covers, shields isolation resistor-capacitor network, etc. 4). Before returning the set to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet such as terminals, screwheads, metal overlays control shafts, etc., to insure that the set is safe to operate without danger of electrical shock. 2.3 Product Safty Notice Many electrical parts in this chassis have special safety-related characteristics. These characteristics are often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained by using replacement, rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual and its parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safe

File name NEO TV-1451.txt

CPU LC8633xx VIDEO LA76810A LA7642 IF AUDIO 2xLA4285 V.O.LA7840 H.O.2SD1651 POWER TUNER SERVICE MODE: "FACTORY" BUTTON