A07B500S manual
Pag. 25
On the opposite, if an external stereophonic source is already available, the LEFT and RIGHT
inputs must be kept free by using the MPX input (rear BNC); in this case
the transmitter must be
set to MONO even if the transmission is STEREOPHONIC.
When the transmission is monophonic, if one enters by the two LEFT and RIGHT channels, the
transmitter is modulated at the nominal value; if only one channel is available, this one must enter at
the same time both in the LEFT and RIGHT channel inputs, so
they must be put in parallel
otherwise the deviation would be half of the nominal one.
4.6.13
By entering PAGE UP the following screen shot appears
:
Here it’s possible to see the frequency deviation value and the input signal values.
When the composite signal is chosen (addition of all the modulating signals), the numerical and
visual indication appearing is the frequency modulation expressed in KHz while on the LEFT,
RIGHT MPX signals, the level is measured and displayed as value 100 when it matches the
nominal value.
The indication states the peak and the chosen measurement will be flashing displayed on the LCD.
By modulating the transmitter through the nominal level input signals and with fixed tone (i.e..
400Hz), the deviation must not exceed 75KHz (COMP) and the input signal level must not exceed
100%. But if a music signal is available at the input, indication can also exceed this value and the
exact rules for this check will be seen in the screen shot 11.
Besides, if the automatic audio gain control is off, the 75KHz deviation value is equivalent to 100%
of the input signal values. On the opposite, if the AGC is on 75KHz deviation can be obtained by an
input signal which is variable, as level, from half to the double of the nominal value.
4.6.14
By entering PAGE UP the following screen shot will appear:
Summary of Contents for A07B500S
Page 15: ...A07B500S manual Pag 15 A07B500S TRANSMITTER BLOC DIAGRAM...
Page 16: ...A07B500S manual Pag 16 A07B500S POWER SUPPLY BLOC DIAGRAM...
Page 27: ...A07B500S manual Pag 27...
Page 34: ...A07B500S manual Pag 34...
Page 42: ...A07B500S manual Pag 42 ADJUSTMENT4 6 1 Module PWN PW500 power supply...
Page 46: ...A07B500S manual Pag 46...
Page 68: ...A07B500S manual Pag 68 fig 9a...
Page 69: ...A07B500S manual Pag 69 fig 9b...
Page 70: ...A07B500S manual Pag 70 fig 9c...
Page 73: ...A07B500S manual Pag 73 fig 9c...
Page 74: ...A07B500S manual Pag 74 DIAGRAMS AND LAYOUTS...
Page 75: ...A07B500S manual Pag 75 PWN BOARD POWER SUPPLY...
Page 76: ...A07B500S manual Pag 76 PWN BOARD POWER SUPPLY...
Page 79: ...A07B500S manual Pag 79 AUDIOIN BOARD AUDIO INPUTS...
Page 80: ...A07B500S manual Pag 80 AUDIOIN BOARD AUDIO INPUTS...
Page 81: ...A07B500S manual Pag 81 AUDIOIN BOARD AUDIO INPUTS...
Page 85: ...A07B500S manual Pag 85 LCDP BOARD DISPLAY DRIVER...
Page 86: ...A07B500S manual Pag 86 LCDP BOARD DISPLAY DRIVER...
Page 90: ...A07B500S manual Pag 90 MBP BOARD MOTHER BOARD...
Page 91: ...A07B500S manual Pag 91 MBP BOARD MOTHER BOARD...
Page 92: ...A07B500S manual Pag 92 MBP BOARD MOTHER BOARD...
Page 93: ...A07B500S manual Pag 93 MBP BOARD MOTHER BOARD...
Page 97: ...A07B500S manual Pag 97 258 1 74HC00N Gate 2 Input NAND U23 KEY BOARD KEY...
Page 98: ...A07B500S manual Pag 98 KEY BOARD KEY...
Page 100: ...A07B500S manual Pag 100 SINTD BOARD VCO OSCILLATOR...
Page 101: ...A07B500S manual Pag 101 SINTD BOARD VCO OSCILLATOR...
Page 104: ...A07B500S manual Pag 104 Total DMPX BOARD STEREOCODER...
Page 105: ...A07B500S manual Pag 105 DMPX BOARD STEREOCODER...
Page 108: ...A07B500S manual Pag 108 AGC BOARD AUDIO AUTOMATIC GAIN CONTROL...
Page 109: ...A07B500S manual Pag 109 AGC BOARD AUDIO AUTOMATIC GAIN CONTROL...
Page 112: ...A07B500S manual Pag 112 MBP500 BOARD MBP A500 CONNECTION...
Page 113: ...A07B500S manual Pag 113 MBP500 BOARD MBP A500 CONNECTION...
Page 115: ...A07B500S manual Pag 115 A15 BOARD RF DRIVER AMPLIFIER...
Page 116: ...A07B500S manual Pag 116 A15 BOARD RF DRIVER AMPLIFIER...
Page 118: ...A07B500S manual Pag 118 DC250 BOARD DIRECTIONAL COUPLER...
Page 119: ...A07B500S manual Pag 119 DC250 BOARD DIRECTIONAL COUPLER...
Page 122: ...A07B500S manual Pag 122 A500 BOARD POWER AMPLIFIER A500 BOARD POWER AMPLIFIER...
Page 123: ...A07B500S manual Pag 123 A500 BOARD POWER AMPLIFIER...
Page 124: ...A07B500S manual Pag 124 PW500 BOARD AUXILIARY POWER SUPPLY...
Page 125: ...A07B500S manual Pag 125 PW500X BOARD AUXILIARY POWER SUPPLY...
Page 126: ...A07B500S manual Pag 126 PW500 BOARD AUXILIARY POWER SUPPLY...
Page 127: ...A07B500S manual Pag 127 PW500X BOARD AUXILIARY POWER SUPPLY...
Page 130: ...A07B500S manual Pag 130 LPF500 BOARD RF LOW PASS FILTER...