14GT15 14GT20

More documents

Recommendations

Info

14GT15 14GT20 SPECIFICATIONS Convergence................................................................. Self Convergence System Focus ............................................................ Electrostatic Focus High Bi-Potential Sweep Deflection ..................................................................................... Magnetic Intermediate Frequencies Picture IF Carrier .................................................................................. 38.9MHz Sound IF Carrier Frequency 5.5MHz...............................................................................................33.4MHz Colour Sub-Carrier Frequency ........................................................... 34.47MHz Power Input ..................................................................... 100 ~ 240V AC 50/60 Hz Power Consumption ........................................................................................ 65W Audio Power Output Rating.............................................................. 3.0W(at Max.) Speaker Size ................................................................................... 5 x 9 cm Elliptic (1pc) Voice Coil Impedance ...........................................................16 ohms at 400 Hz Aerial Input Impedance VHF/UHF .......................................................................... 75 ohms Unbalanced Receiving Channel PAL B/G VHF-Channels ...................................... E2(48.25MHz) thru E12(224.25MHz) UHF-Channels .................................. E21(471.25MHz) thru E69(855.25MHz) Dimensions ................................................................................... Width: 351.0mm Height: 361.0mm Depth: 359.0mm Weight(approx): 9.2 kg Cabinet material .................................................................................... All Plastics Specifications are subject to change without prior notice. 2
14GT15 14GT20 IMPORTANT SERVICE NOTES Maintenance and repair of this receiver should be done by qualified service personnel only. SERVICE OF HIGH VOLTAGE SYSTEM AND PIC- TURE TUBE When servicing the high voltage system, remove static charge from it by Connecting a 10K ohm Resistor in series with an insulated wire(such as a test probe) between picture tube dag and 2nd anode lead. (AC line cord should be disconnected from AC outlet.) 1. Picture tube in this receiver employs integral implosion protection. 2. Replace with tube of the same type number for continued safety. 3. Do not lift picture tube by the neck. 4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely. X-RAY This receiver is designed so that any X-Ray radiation is kept to an absolute Minimum. Since certain malfunctions or servicing may produce potentially hazardous radiation with prolonged exposure at close range, the followin precautions should be observed: 1. When repairing the circuit, be sure not to increase the high voltage to more than 25.8kV (at beam 0 µA) for the set. 2. To keep the set in a normal opeartion , be sure to make it function on 22.8kV ±1.5kV (at beam 800 µA) in the case of the set. The set has been factory - Adjusted to the abovementioned high voltage. ∴If there is a possibility that the high voltage fluctuates as a result of the repairs, never forget to check for such high voltage after the work. 3. Do not substitute a picture tube with unauthorizerd types and/or brands which may cause excess X-ray radiation. BEFORE RETURNING THE RECEIVER Before returning the receiver to the user, perform the following safety Checks. 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver. 2. Inspect all protective devices such as non-metallic control knobs, insulating fishpapers, cabinet backs, adjustment and compartment covers or shields, isolation resistor- capacity networks, mechanical insulators etc. 3
Page 1: SERVICE MANUAL 14GT15 14GT20 S30Y11
Page 5 and 6: 14GT15 14GT20 SERVICE MODE (1) In t
Page 7 and 8: 14GT15 14GT20 USER DATA IN SERVICE
Page 9 and 10: 14GT15 14GT20 EEPROM ITEMS OSD DATA
Page 11 and 12: PIF ADJUSTMENT 14GT15 14GT20 No. Ad
Page 13 and 14: 14GT15 14GT20 CONVERGENCE ADJUSTMEN
Page 15 and 16: HORIZONTAL AND VERTICAL DEFLECTION
Page 17 and 18: FUNCTION OPERATION CHECKING (VIDEO
Page 19 and 20: MEMORY MAP ADDRESS DATA MICON E 2 P
Page 21 and 22: 14GT15 14GT20 ADDRESS DATA MICON E
Page 27 and 28: TROUBLE SHOOTING TABLE 14GT15 14GT2
Page 29 and 30: 14GT15 14GT20 TROUBLE SHOOTING TABL
Page 31 and 32: SOLID STATE DEVICE BASE DIAGRAM 14G
Page 33 and 34: 14GT15 14GT20 MODEL 14GT20 CHASSIS
Page 35 and 36: DESCRIPTION OF SCHEMATIC DIAGRAM 14
Page 37 and 38: J 14GT15 14GT20 C351 103B I H G R31
Page 39 and 40: J SCHEMATIC DIAGRAM: MODEL 14GT20 H
Page 41 and 42: 14GT15 14GT20 J SCHEMATIC DIAGRAM:
Page 43 and 44: 14GT15 14GT20 J BLOCK DIAGRAM - 2/3
Page 45 and 46: J PRINTED WIRING BOARD ASSEMBLIES P
Page 47 and 48: 14GT15 14GT20 14GT15 14GT20 PWB-A:
Page 49 and 50: 14GT15 14GT20 Ref. No. Part No. Des
Page 51 and 52: 14GT15 14GT20 Ref. No. Part No. Des
Page 53 and 54:
14GT15 14GT20 Ref. No. Part No. Des
show all

14GT15 14GT20

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?