TV-SA2155 SERVICE MANUAL COLOR TELEVISION • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-003-431-4T1). • This Service Manual does not include “DISASSEMBLY INSTRUCTIONS” and “ADJUSTMENT”. These items will be issued in the next Supplement.
NOTICES BEFORE REPAIRING To make the best use of this equipment, make sure to obey the following items when repairing (or mending). 1. Do not damage or melt the tunicate of the leading Insulation resistance: 6.0 to 10 MΩ (500 V/s) wire on the AC1 side, including the power supply Voltage-withstand: 1.0 KV for 1 minute cord.
SPECIFICATIONS Tuner System Frequency synthesized tuner TV System PAL (B/G, H, D/K) SECAM (B/G, D/K, K1) Channel Coverage VHF: E2 to E12, R1 to R12 UHF: 21 to 69 CATV: S1 to S41 Program Memory 100 TV stations Antenna Input 75 ohms, unbalanced Picture Tube 21"...
TRANSISTOR ILLUSTRATION E C B E C B S D G E C B 2SA950Y 2SJ460 2SC3467D/E 2SA1175FE 2SA1015GR 2SK2541 2SC2785FE DTC144ES 1. SENSE 2. COLLECTOR 3. GROUND B C E 1 2 3 E C B E C B 2SD2333LS SE115N 2SC3779D/E...
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IC DESCRIPTION IC, TMP87CP38N Pin No. Pin Name Description – Connected to GND. POWER During standby mode, "H" level is inserted to switch off H deflection & high voltage. SIF A SOUND IF switch A. SIF B SOUND IF switch B. BBE select.
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IC, TB1240AN Pin No. Pin Name Description AFT OUT The terminal for AFT output and self-adjust output. A OUT Audio output pin. (Not used) IF VCC – VCC of PIF circuit. SIF IN SIF input pin. IF GND – GND of PIF circuit. IF IN IF signal input.
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Pin No. Pin Name Description SYNC IN Input of the synchronous separation circuit. BLK DET – The terminal to be connected with an Black Det filter. C IN Input of chroma signals. Y/C VCC – VCC of Y/C circuit. IFDET OUT Composite video signal and SIF signal detected in IF circuit.
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IC, MSP3417D Pin No. Pin Name Description – Test pin (not used). – Not connected. D_CTR_OUT1 Digital control output 1 (not used). D_CTR_OUT0 Digital control output 0 (not used). ADR_SEL C bus address select. STANDBYQ Standby (low active). C_CL C clock. C_DA C data.