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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