Alignment instructions TV17 XL.pdf part of Schneider TV17 alignment_instructions_tv17_xl_184.rar, Schneider TV17 ALIGNMENT INSTRUCTIONS text manual preview

Text preview for : Alignment instructions TV17 XL.pdf part of Schneider TV17 Schneider TV17 ALIGNMENT INSTRUCTIONS

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Alignment instructions TV17 XL
General information: When servicing, the set should be connected to an isolation transformer and observe valid safety precautions! Precautions against static discharge should be taken. X-ray regulations: The high voltage is in the permissible range if the operating voltage is 145V with minimum beam current. When a set has been serviced check that the high voltage is correct. The default values and points given in the adjustment procedures may differ or missing due to circuit amendments, revised specification, versions and tolerances. Subject to changes! Operating voltage +145V: Set contrast and brightness to minimum (minimum beam current!). Check point: Cathode diode D 202 against secondary ground. Set with R 211 the measured voltage to +145V (±0.5V). Alignment AGC voltage: In range III (channel 8) feed in a B/G-PAL-test pattern without a sound carrier and with an antenna input level of 65 dBµV at 75 . At tuner pin1 (AGC) and pin3 (GND) connect a voltmeter and set in service mode following voltage: Tuner Selteka KS-H-132 Tuner Temic 6002 PH5 Tuner Philips UV 1316-SIG 3 Service mode: Before activating service mode set suited test pattern. Set medium brightness, colour, contrast, sharpness, noise and picture mode. A standard 4:3 test pattern is necessary for the geometry adjustment. The chassis for 16:9 requires a 4:3 test pattern covering the entire area to be set in the decoder mode, thus creating a horizontal extension (horizontal ellipses). Go into the Service mode: You must press the buttons »MUTE«, »red« (picture menu) and »TV« on remote control one after another. Basic functions in the service mode: »red« button Buttons » / « Buttons » » OK « button » TV « button select menu line or digit select further parameters « change parameters store the changes leave Service Mode 2.30 V (±0.15 V) DC 3.15 V (±0.15 V) DC 2,10 V (±0.15 V) DC