CB President JohnnyII ASC HarryII Classic HarryII ASC serv, INNE

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JOHNNY II ASC
HARRY II classic
HARRY II ASC
SERVICE MANUAL
-TECNNICAL CHARACTERITICS
JOHNNY II ASC ( config: E EU PL )
HARRY II classic ( config: E d d2 EU EC U PL,without ASC )
HARRY II ASC ( config: E d d2 EU EC U PL )
1-GENERAL:
-Multiconfiguration(E,d,d2,EU,EC,U,PL)
-E

40 channels AM/FM 4W (from 26,965Mhz to 27,405Mhz)
80 channels FM 4W (from 26,565Mhz to 27,405Mhz)
12 channels AM 1W (from 27,005Mhz to 27,135Mhz)

40 channels FM 4W (from 26,565Mhz to 27,405Mhz)
12 channels AM 1W (from 27,005Mhz to 27,135Mhz)
-EU


40 channels FM 4W/AM 1W (from 26,965Mhz to 27,405Mhz)
-EC

40 channels FM 4W (from 26,965Mhz to 27,405Mhz)
40 channels FM 4W (from 26,965Mhz to 27,405Mhz)
40 channels FM 4W (from 27,60125Mhz to 27,99125Mhz)
-PL


40 channels AM/FM 4W (from 26,960Mhz to 27,400Mhz)
-
Channel step
-10KHz
-
Class of emission
-AM(A3E)/FM(F3E)
-Power supply
-13,2V (from10,8V to 15,6V)
-Antenna impedance
-Dimensions(in mm)
Ω
-115(L)x180(H)x35(D)
-Weight
-0,8Kg
2-TRANSMISSION:
-Frequency allowance
-±300Hz
-Transmission interference
-Inferior to 4nW(-54dBm)
-Audio frequency response
-From 300Hz to 3kHz in AM/FM
-Emitted power in the adjacent channel
-Inferior to 20µW
-Microphone sensitivity
-Inferior to 10mV
-
Current drain
-1,7A(in transmission mode with modulation)
-Modulated signal distortion
-Inferior to 2%
-d
-d2
-U
-50
3-RECEPTION:
-Maximum sensitivity at 20dB sinad
-0,5µV(-113dBm) AM/FM
-Audio frequency response
-From 300Hz to 3kHz in AM/FM
-Adjacent channel selectivity
-Superior to 60dB
-Frequency image rejection
-Superior to 60dB
-Intermodulation response
-Superior to 54dB
-Maximum audio power
-5W
-Squelch sensitivity
-Threshold 0,2µV(-120dBm)/Tight 1mV(-47dBm)
-
Current drain
-500mA nominal/800mA maximum
ALIGNMENT PROCEDURE
(JOHNNY II ASC/HARRY II classic/
HARRY II ASC)
* VCO/PLL PORTION
- Alignment procedure
- Test points
- Frequencies chart
* TRANSMITTER
- Alignment procedure
- Test points
* RECEIVER
- Alignment procedure
- Test points
Test equipement required
Frequency counter 200 Mhz
HF Generator
DC Voleter
BF Voleter
Distortioeter
HF Voleter
Wattmeter - Dummy load
Osilloscope
FM linear detector
Load 8 Ω
AF generator Sinad meter
Conditions of Measurements on HF Generator
Reception
AM mode: Level - 107 dBm Frequency 1 KHz with 60% of modulation.
FM mode: Level - 107 dBm Frequency 1 KHz with 1,2KHz of deviation.
Transmission
Frequency1 KHz 30mV.
ALIGNMENT VCO/PLL
1 - Alignment procedure(13,2V;configuration”EU,E,d”)
STEP
CONDITION
ADJUSTMENT
REMARKS OF ADJUSTMENT
1
FM(EU,E)
TX mode
Channel 40
L361
Connect a voltmeter to TP 301,
adjust L361 to reach 3,2V±0,2V.
2
FM(EU,E)
RX mode
Channel 40
L360
Connect a voltmeter to TP 301,
adjust L360 to reach 2,6V±0,2V.
3
FM(EU,E)
TX/RX mode
Channel 1
Connect a voltmeter to TP 301,and check:
Rx Channel 1=2,2V±0,2V
Tx Channel 1=2,5V±0,2V
4
FM(EU,E)
RX mode
Channel 20
CT301
Connect a frequency counter to TP302,and
adjust CT301 to reach
37,900MHz.
5
FM(EU,E)
TX/RX mode
Channel 1 to 40
or 1 to 80(d)
Connect a frequency counter to TP302,and
check frequencies.
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