President JOHNNY II ASC Manual.pdf

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 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)

-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

FM(EU,E)

TX mode

Channel 40

L361

Connect a voltmeter to TP 301,

adjust L361 to reach 3,2V±0,2V.

FM(EU,E)

RX mode

Channel 40

L360

Connect a voltmeter to TP 301,

adjust L360 to reach 2,6V±0,2V.

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

FM(EU,E)

RX mode

Channel 20

CT301

Connect a frequency counter to TP302,and

adjust CT301 to reach

37,900MHz.

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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