Text preview for : MANUAL SERVICE MX5203MS 15.pdf part of POLYTRON ( INDONESIA ) MX5203MS It used STV2286H , AN5891K , TDA8174 , STB9NK70Z-1 Complete Service Manual in RAR file type.sent by [email protected]
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Service Manual BML Myanmar
C. ADJUSTMENT ON FACTORY MODE
PT.Hartono Istana Teknologi
c.1. IF PLL Adjustment : - Inject SSG signal 38.95 MHz to IF Tuner output (sanyo tuner 115-B-8054EP and samsung tuner TECC2949PG40J (P) use signal 39.04 MHz). - Access to factory mode setting. - Adjust IF coarse until we got In Low or In High position. - Select IF Fine menu. - Adjust IF Fine tuner until we got AFC Ok from AFC In low condition or AFC In High. - If adjustment from AFC In Low , then turn up IF fine until 10 steps at above of Blinking between In Low/Ok. - If adjustment from AFC In High , then turn down IF tuner until 10 steps at the bottom of Blinking between In High/Ok. - Press MENU button to keep adjustment data. c.2. AGC Adjustment : : - Inject normal pattern ( channel 7 ) with signal strength 60dB on antenna input. - Select AGC menu on Factory Mode. - Monitor AGC voltage of Test Point TP AGC at :
J322 for BM3 or; J107F for BM1 or; J105 for BM0, BMI, BMJ and BML Adjust AGC until present voltage of TP AGC around : a. Tuner Philips UV1355/AL2 tuner show voltage around 2.6 ± 0.1V (for RF 60dB ±1dB), use adjustment range 0 - 63. b. Tuner Samsung TECC2949VG33E tuner show voltage around = 3.6 ± 0.1V (for RF60dB ± 1dB), use adjustment range 192 - 255. c. Tuner Samsung TECC2949PG40J(P) tuner show voltage around 3.4V ± 0.1V (for RF 60dB ± 1dB), use adjustment range 0 - 63. d. Tuner Sanyo 115-B-8054EP tuner show voltage around 2.9 ± 0.1V (for RF 60dB ±1dB), use adjustment range 0-63. e. Tuner GDC EWT-5V3SA1-E07W, EWT-5V3SB1-E07W and EWT5V3SB1-E07W-1tuner show voltage around 2.7 ± 0.1V (for RF 60dB ± 1dB), use adjustment range 0-63. f. Tuner LG TAEW-G014D tuner show voltage around 2.6 ± 0.1V (for RF 60dB ± 1dB) use Adjustment range 0-63. Press MENU button to keep adjustment data.
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