Preparation - Icom ID-800H Service Manual

A
SECTION 5 ADJUSMENT

5-1 PREPARATION

Most of adjustment must be performed on the adjustment mode.
▄ REQUIRED TEST EQUIPMENT
EQUIPMENT
Output voltage
DC power supply
Current capacity
Frequency range
Modulation analyzer
Measuring range
Frequency range
Frequency accuracy : ±1 ppm or better
Frequency counter
Sensitivity
Digital multimeter Input impedance
Measuring range
Frequency range
RF power meter
Impedance
SWR
▄ ENTERING THE ADJUSTMENT MODE
q Turn the transceiver's power OFF.
w Connect the JIG cable (see illustration on page 5-2) to the microphone connector.
e Push and hold [SET•LOCK] and [BAND•MODE], and then turn power ON.
▄ EXITING THE ADJUSTMENT MODE
q Turn the transceiver's power OFF.
w Disconnect the JIG cable from the microphone connector.
e Tune the transceiver's power ON.
▄ OPERATING ON THE ADJUSTMENT MODE
• Change the adjustment value
• Verifying the adjustment value
• TX output power level selection
• Mode selection
• Adjustment item selection (forward)
• Adjustment item selection (backward)
• Set value storing/automatic adjustment
CAUTION:
Push [BAND] when storing the adjustment value in the transceiver. Otherwise, the transceiver is not adjusted
properly.
ATTENTION: NEVER adjust the adjustment items that are not described in this ADJUSTMENT PROCEDURES.
The undescribed items are adjusted automatically. If undescribed items are adjusted manually, the transceiver
may not work properly.
GRADE AND RANGE
: 13.8 V
: 20 A or more
: DC–600 MHz
: 0 to ±10 kHz
: 0.1–600 MHz
: 100 mV or more
: 10 MΩ/V DC or more
: 1–80 W
: 100–800 MHz
: 50 Ω
: Better than 1.2 : 1
: [DIAL]
: [M/CALL•PRIO]
: [LOW•DUP]
: [TONE•T-SCAN]
: [SET•LOCK]
: [S.MW•MW]
: [BAND•MODE]
PROCEDURESE
EQUIPMENT
Audio generator
Attenuator
Standard signal
generator (SSG)
AC millivoltmeter
Oscilloscope
External speaker
5 - 1
GRADE AND RANGE
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
Power attenuation : 50 or 60 dB
Capacity : 100 W
Frequency range : 0.1–1200 MHz
Output level : 0.1 µV to 32 mV
(–127 to –17 dBm)
Measuring range : 10 mV to 10 V
Frequency rang : DC–20 MHz
Measuring range : 0.01–20 V
: 8 Ω
Input impedance
Capacity : 10 W or more