UPMSP Radio & Colour TV Technique study guide
UPMSP Radio & Colour TV Technique · Work through your exam, one topic at a time.
UPMSP Intermediate Vocational Trade – Radio & Colour TV Technique is a Class 12 vocational credential awarded by the Uttar Pradesh Madhyamik Shiksha Parishad. It is designed for students who want a practical, employment-oriented qualification in consumer electronics servicing rather than a purely academic science route. The UPMSP Radio & Colour TV Technique study guide has 12 sections and about 3,408 words.
01Basic Electrical and Electronic Fundamentals
Basic Electrical and Electronic Fundamentals underpins every fault-finding decision in radio and colour TV servicing. The exam checks Ohm's law, power, series and parallel networks, Kirchhoff's laws, AC waveform values, reactance and impedance, resonance, and basic decibel ideas.
282 words, about 1 min02Tools, Measuring Instruments and Workshop Practice
Tools, Measuring Instruments and Workshop Practice covers safe use of multimeters, oscilloscopes, signal generators, soldering stations, and workshop aids; measurement accuracy, loading, calibration, and ESD control. Select the correct function and range before connecting; start on a high range for unknown voltages and currents.
321 words, about 2 min03Passive Components and Semiconductor Devices
Passive Components and Semiconductor Devices tests identification, ratings, testing, and application of resistors, capacitors, inductors, transformers, diodes, rectifiers, BJTs, FETs, and optoelectronic devices. Resistor colour code: black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue 6, violet 7, grey 8, white 9; third band is multiplier, fourth is tolerance (gold ±5%, silver ±10%).
299 words, about 1 min04Power Supplies, Rectifiers, Filters and Voltage Regulators
Power Supplies, Rectifiers, Filters and Voltage Regulators covers transformers, half-wave and full-wave or bridge rectifiers, capacitor and LC filters, ripple, zener shunt regulators, three-terminal IC regulators, and SMPS basics. Half-wave: one diode, ripple frequency equals supply frequency.
288 words, about 1 min05Audio Systems, Microphones, Loudspeakers and Amplifiers
Audio Systems, Microphones, Loudspeakers and Amplifiers tests microphone types and polar patterns, impedance and sensitivity, speaker systems and crossovers, amplifier classes, gain, distortion, feedback, and matching. Dynamic microphone: rugged, no phantom power, low output.
275 words, about 1 min06Radio Receivers (AM/FM)
Radio Receivers (AM/FM) focuses on superheterodyne architecture: RF amplifier, mixer, local oscillator, IF amplifier, detector, AGC, AFC, and alignment; AM/FM broadcast bands and receiver performance. A superheterodyne receiver converts incoming RF to a fixed IF: AM commonly 455 kHz, FM 10.7 MHz.
269 words, about 1 min07Antennas, Transmission Lines and Propagation
Antennas, Transmission Lines and Propagation covers wavelength, dipole and monopole antennas, feedlines, SWR, baluns, velocity factor, and radio-wave propagation modes. Half-wave dipole total length ≈0.5λ; each leg ≈0.25λ.
272 words, about 1 min08Television Fundamentals: Scanning, Synchronisation and Composite Video Signal
Television Fundamentals: Scanning, Synchronisation and Composite Video Signal covers raster formation, interlaced scanning, frame and field rates, sync pulses, blanking, and the composite video waveform. PAL 625/50: 625 lines per frame, 25 frames/s, 50 fields/s, 2:1 interlace; line frequency=625×25=15,625 Hz; line period=64 µs.
271 words, about 1 min09Monochrome TV Receiver Circuits and Stages
Monochrome TV Receiver Circuits and Stages tests the signal path and stage-by-stage faults: tuner, IF, video detector, video amplifier, sync separator, deflection, EHT, AGC, and sound takeoff. Antenna → tuner (RF amp, mixer, local oscillator) → IF amplifier (picture IF about 38.9 MHz in PAL B/G; sound intercarrier about 33.4 MHz) → video detector → video amp → CRT cathode.
301 words, about 2 min10Colour Television: Colour Fundamentals and PAL, NTSC and SECAM Systems
Colour Television: Colour Fundamentals and PAL, NTSC and SECAM Systems tests additive colour, luminance and chrominance, colour difference signals, colour burst, PAL phase alternation, and system differences. Additive primaries are red, green, blue; equal RGB gives white.
253 words, about 1 min11Display Devices and Digital Reception: CRT, LCD/LED Panels, DTH and Set-Top Boxes
Display Devices and Digital Reception: CRT, LCD/LED Panels, DTH and Set-Top Boxes tests display technologies, resolution, interface, the DTH signal chain, LNB, set-top box tuning, demodulation, and decoding. CRT: electron gun, deflection yoke, shadow mask or aperture grille, phosphor triads; EHT can exceed 25 kV and remains stored after switch-off.
287 words, about 1 min12Fault Diagnosis, Servicing, Safety and Environmental Practices
Fault Diagnosis, Servicing, Safety and Environmental Practices tests systematic troubleshooting, test procedures, safe isolation, ESD, CRT discharge, soldering hazards, and e-waste handling. Start with a symptom interview and visual inspection: fuse, burnt components, bulged capacitors, loose connectors, corrosion.
290 words, about 1 min