A07A2200S
6.1
MBA module - mother board
On the mother board it’s possible to perform the modulation width setting, of the
stereophonic coded signal levels, the automatic check gain regulation threshold, and the phase
compensation and the multiplex signal width.
The mother board receives on three connectors the VCO oscillator module (SINTD), the
stereophonic coded module and the automatic check gain module.
Adjust the trimmer RT4 of the MBA board as to have +8Vdc at R7 ends.
Inject a +6dBm signal into the rear MPX input, after the same level in the settings window has been
selected, then adjust the RT5 trimmer to read 75KHz on the measurement main page at the
modulation correspondence, by TX in MONO.
380 221 R02
Pag. 32
Summary of Contents for A07A2200S
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Page 54: ...A07A2200S 380 221 R02 23 REMOTE 24 AC MAINS INPUT ...
Page 85: ...DT50 100 manual 380 209 R00 Pag 77 AUDIOIN BOARD AUDIO INPUTS ...
Page 86: ...DT50 100 manual 380 209 R00 Pag 78 AUDIOIN BOARD AUDIO INPUTS ...
Page 87: ...DT50 100 manual 380 209 R00 Pag 79 AUDIOIN BOARD AUDIO INPUTS ...
Page 91: ...DT50 100 manual 380 209 R00 Pag 83 DLCD BOARD DISPLAY DRIVER ...
Page 92: ...DT50 100 manual 380 209 R00 Pag 84 DLCD BOARD DISPLAY DRIVER ...
Page 96: ...DT50 100 manual 380 209 R00 Pag 88 MBA BOARD MOTHER BOARD ...
Page 97: ...DT50 100 manual 380 209 R00 Pag 89 MBA BOARD MOTHER BOARD ...
Page 98: ...DT50 100 manual 380 209 R00 Pag 90 MBA BOARD MOTHER BOARD ...
Page 99: ...DT50 100 manual 380 209 R00 Pag 91 MBA BOARD MOTHER BOARD ...
Page 103: ...DT50 100 manual 380 209 R00 Pag 95 SINTD BOARD VCO OSCILLATOR ...
Page 104: ...DT50 100 manual 380 209 R00 Pag 96 SINTD BOARD VCO OSCILLATOR ...
Page 107: ...DT50 100 manual 174 1 74HC08D Gate 2 Input AND U1 DMPX BOARD STEREOCODER 380 209 R00 Pag 99 ...
Page 108: ...DT50 100 manual 380 209 R00 Pag 100 DMPX BOARD STEREOCODER ...
Page 109: ...DT50 100 manual 380 209 R00 Pag 101 DMPX BOARD STEREOCODER ...
Page 112: ...DT50 100 manual 380 209 R00 Pag 104 AGC BOARD AUDIO AUTOMATIC GAIN CONTROL ...
Page 113: ...DT50 100 manual 380 209 R00 Pag 105 AGC BOARD AUDIO AUTOMATIC GAIN CONTROL ...