A07B500S manual
Pag.
66
INTERNAL ADJUSTMENTS & SETTINGS
See figg. 9.a , 9.b , 9.c for function number
N°
Board name/
Component
FUNCTION
DESCRIPTION
0
DLCD/Z2
Password
Set jumper to PASSW. to enable password function.
1 MBP/RT5 Freq.dev.display Adjust
to
display modulation = 75 Khz on Page 0
2
MBP/RT4
Pilot THD
Adjust to minimum pilot THD
3 MBA/RT2 Chan.
Separation Adjust for max channel separation
4 MBA/RT3 Chan.
Separation Adjust for max channel separation
5
MBP/RT7
MPX freqquency
deviation
Adjust, with nominal MPX input level, for 75 Khz
frequency deviation
6
AGC/RT1
AGC level input
Adjust, with nominal LF level input, DC voltage on DZ1
to 2.6V
7
MBP/RT1
Clipper symm.
Adjust for clipper symmetry
8 MBP/RT6
Clipper
level Adjust
to the desired clipper level
9
MBP/RT8
33 KHz notch
Adjust for minimum on the RIGHT channel
10 MBP/RT11
RIGHT gain
Adjust for minimum on LF monitor ( L= -R )
11 MBP/RT10
22.7 KHz notch
Adjust for minimum on the RIGHT channel
12
MBP/RT9
19 KHz notch
Adjust for minimum on the RIGHT channel
13 DC250/RT2
PWR
offset
Adjust to obtain (without RFin) 0Vdc on PWR
feedthrough
14
DC250/RT1
PWR meas.
Adjust to read on display (without RF load) PWD=PWR
(PWR set = 50W)
15 DC250/RT3
PWD meas.
Adjust to obtain Pout = 500W (PWD set = 500W)
16 DC100/RT4
PWD
offset
Adjust to obtain (without RFin) 0Vdc on PWD
feedthrough
17
DLCD/Z1
Run/Boot
Set jumper to RUN for normal operation, to BOOT for
firmware loading ( by COM1 )
18
DLCD/BT1
Clock battery
Use only 3.3 V lithium battery (
WARNING:TOXIC
COMPONENT
)
19
DLCD/P9
MCU reset
Press button to Reset 68HC11 microcontroller
20
SINTD/RT1
Mono frequency
deviation
Adjust, with nominal mono audiolevel in MPX input, for
75 Khz deviation
21 DMPX/RT3
Pilot phase
Adjust to the right phase by antiphase tecnique
22 DMPX/RT1
Pilot level
Adjust to 20dB less than MPX signal
23 DMPX/RT2
MPX spurious
Adjust for minimum spurious of MPX signal
24 DMPX/C22
Pilot frequency
Adjust stereo subcarrier to 19 Khz +/-1Hz
25 LCDP/U2
Flash Memory
Change for program upgrade
26 A15/RT1
BFQ68 bias
Adjust for 200 mA collector current without RF power
27 A15/RT2
DU2840 bias
Adjust for 20 mA drain current without RF power
Содержание A07B500S
Страница 1: ...A07B500S manual TECHNICAL MAINTENANCE AND INSTALLATION MANUAL 500 W FM TRANSMITTER A07B500S 380245 R1...
Страница 15: ...A07B500S manual Pag 15 A07B500S TRANSMITTER BLOC DIAGRAM...
Страница 16: ...A07B500S manual Pag 16 A07B500S POWER SUPPLY BLOC DIAGRAM...
Страница 27: ...A07B500S manual Pag 27...
Страница 34: ...A07B500S manual Pag 34...
Страница 42: ...A07B500S manual Pag 42 ADJUSTMENT4 6 1 Module PWN PW500 power supply...
Страница 46: ...A07B500S manual Pag 46...
Страница 68: ...A07B500S manual Pag 68 fig 9a...
Страница 69: ...A07B500S manual Pag 69 fig 9b...
Страница 70: ...A07B500S manual Pag 70 fig 9c...
Страница 73: ...A07B500S manual Pag 73 fig 9c...
Страница 74: ...A07B500S manual Pag 74 DIAGRAMS AND LAYOUTS...
Страница 75: ...A07B500S manual Pag 75 PWN BOARD POWER SUPPLY...
Страница 76: ...A07B500S manual Pag 76 PWN BOARD POWER SUPPLY...
Страница 79: ...A07B500S manual Pag 79 AUDIOIN BOARD AUDIO INPUTS...
Страница 80: ...A07B500S manual Pag 80 AUDIOIN BOARD AUDIO INPUTS...
Страница 81: ...A07B500S manual Pag 81 AUDIOIN BOARD AUDIO INPUTS...
Страница 85: ...A07B500S manual Pag 85 LCDP BOARD DISPLAY DRIVER...
Страница 86: ...A07B500S manual Pag 86 LCDP BOARD DISPLAY DRIVER...
Страница 90: ...A07B500S manual Pag 90 MBP BOARD MOTHER BOARD...
Страница 91: ...A07B500S manual Pag 91 MBP BOARD MOTHER BOARD...
Страница 92: ...A07B500S manual Pag 92 MBP BOARD MOTHER BOARD...
Страница 93: ...A07B500S manual Pag 93 MBP BOARD MOTHER BOARD...
Страница 97: ...A07B500S manual Pag 97 258 1 74HC00N Gate 2 Input NAND U23 KEY BOARD KEY...
Страница 98: ...A07B500S manual Pag 98 KEY BOARD KEY...
Страница 100: ...A07B500S manual Pag 100 SINTD BOARD VCO OSCILLATOR...
Страница 101: ...A07B500S manual Pag 101 SINTD BOARD VCO OSCILLATOR...
Страница 104: ...A07B500S manual Pag 104 Total DMPX BOARD STEREOCODER...
Страница 105: ...A07B500S manual Pag 105 DMPX BOARD STEREOCODER...
Страница 108: ...A07B500S manual Pag 108 AGC BOARD AUDIO AUTOMATIC GAIN CONTROL...
Страница 109: ...A07B500S manual Pag 109 AGC BOARD AUDIO AUTOMATIC GAIN CONTROL...
Страница 112: ...A07B500S manual Pag 112 MBP500 BOARD MBP A500 CONNECTION...
Страница 113: ...A07B500S manual Pag 113 MBP500 BOARD MBP A500 CONNECTION...
Страница 115: ...A07B500S manual Pag 115 A15 BOARD RF DRIVER AMPLIFIER...
Страница 116: ...A07B500S manual Pag 116 A15 BOARD RF DRIVER AMPLIFIER...
Страница 118: ...A07B500S manual Pag 118 DC250 BOARD DIRECTIONAL COUPLER...
Страница 119: ...A07B500S manual Pag 119 DC250 BOARD DIRECTIONAL COUPLER...
Страница 122: ...A07B500S manual Pag 122 A500 BOARD POWER AMPLIFIER A500 BOARD POWER AMPLIFIER...
Страница 123: ...A07B500S manual Pag 123 A500 BOARD POWER AMPLIFIER...
Страница 124: ...A07B500S manual Pag 124 PW500 BOARD AUXILIARY POWER SUPPLY...
Страница 125: ...A07B500S manual Pag 125 PW500X BOARD AUXILIARY POWER SUPPLY...
Страница 126: ...A07B500S manual Pag 126 PW500 BOARD AUXILIARY POWER SUPPLY...
Страница 127: ...A07B500S manual Pag 127 PW500X BOARD AUXILIARY POWER SUPPLY...
Страница 130: ...A07B500S manual Pag 130 LPF500 BOARD RF LOW PASS FILTER...