Motorola HT 1000 service manual Dtmf

C a u t i o n

Service

Menu

		F2			F3			F4
	Transmitter			Receiver			Signalling
	Alignment			Alignment			Alignment
	Menu			Menu			Menu
F2	- Reference Oscillator		F2	- Front End (VHF/UHF)		F2	- DTMF
F3	- Tx Power		F3	- Rated Audio		F3	- Trunking
F4	- Tx Dev Balance		F4	- Squelch (25/30 kHz)		F4	- MDC 1200
F5	- Tx Dev Limit		F5	- Squelch (20 kHz)
F6	- Tx Dev Reference		F6	- Squelch (12.5 kHz)
F7	- Tx VCO Crossover		F7	- RX VCO Crossover

Note: F2 = Function Key 2

Figure 2 RSS Service Menu Layout

F6

Test

Mode

Menu

MAEPF-22857-A

All service and tuning procedures are performed from the SERVICE menu, which is selected by pressing F2 from the MAIN MENU. Figure 2 illustrates how the RSS SERVICE screens are organized.

All SERVICE screens read and program the radio codeplug directly; you do NOT have to use the RSS GET/SAVE functions to use the SERVICE menus. You will be prompted at each screen to save changed values before exiting the screen. RSS references in this manual are to

HT 1000 / JT 1000 RSS. Some slight differences may be noted it you are using the MTS/MTX RSS.

Do NOT switch radios in the middle of any

!SERVICE procedure. Always use the EXIT key to return to the MAIN menu screen before

disconnecting the radio. Improper exits from the

SERVICE screens may leave the radio in an improperly configured state and result in seriously degraded radio or system performance.

The radio contains internal test modes that can be accessed from the RSS. The test modes permit the service technician to easily select various frequency, modulation, and transmit power combinations to verify proper operation of the radio. The test modes can be used to check both transmit and receive operation. From the Service Menu press F6 to navigate to the TEST MODE screen.

The SERVICE screens introduce the concept of the “softpot”, an analog SOFTware controlled POTentiometer used for adjusting all transceiver alignment controls.

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