Power supply voltage： In USB mode，switch the power to maximum, adjust W13, until voltage in T9 is 12V±0.1V
Quiescent current：In USB mode ，switch the power to maximum，MIC Short-circuited.
A、 J3 with Short-circuit jumper（J4 without），hold PTT, adjust W8 until the current is minimum, adjust
W8 anti direction until the current is 100MA over the minimum value.
B、 J4 with Short-circuit jumper（J3 without）， hold PTT, adjust W9 until the current is minimum, adjust
W9 anti direction until the current is 100MA over the minimum value.
C、 J3, J4 all without Short-circuit jumper，hold PTT, adjust W7 until the current is minimum, adjust W7
anti direction until the current is 100MA over the minimum value.
D、 Testing the transistor follow above order.
E、 4 transistors must be installed under same voltage
Coil adjustment：Before adjust power，L20、L16 move to corresponding position as the sample，install J3、J4 jumper
Transmit intermediate-frequency transformer adjustment： Choose channel3， FM mode，output power to maximum，adjust
T13、T14，to get maximum output power
Note：After finish above alignment, be sure to install the shield over the T13、T14 to ensure rest alignment.
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FM mode testing：
Coil adjustment：Before adjust power，L20、L16 move to corresponding position as the sample，install J3、J4 jumper
Transmit intermediate-frequency transformer adjustment： Choose channel 3， FM mode，output power to maximum，
adjust T13、T14，to get maximum output power, Note：After finish above alignment, be sure to install
the shield over the T13、T14 to ensure rest alignment.
FM High power：Choose channel 2,adjust output power to maximum, adjust W14 to get power 50W±2W, the power on
channel 1 and channel 3 shall > 40w, current < 10A, frequency 50HZ
FM low power：Choose channel 1、2、3，adjust output power to minimum，the power shall between 0.5-3W，current <2.7A
FM maximum deviation：Choose channel 2，send 2K，30 mV signal to MIC，MIC GAIN adjust to maximum, then adjust W500，
to get frequency deviation between 3.5±0.2KHZ，the deviation on channel 1、3 shall between 3-4.0 KHZ.
FM transmitting background noise：Choose channel 1、2、3，adjust output power to maximum，MIC short-circuited，the
background noise shall < 50HZ
Power RSSI meter：Choose channel 2， 1-2 bar for minimum power， Display 40-60 for 50W
SWR： Choose channel 2, output power to maximum，adjust TC1 to get 2 bar for SWR，reverse adjust to get just one bar
Sensitivity：Choose channel 2，send 1K signal to MIC，adjust machine output ， when the frequency deviation is 1.5K，the
audio output of testing machines shall between 5-9mV， SIND >40dB。。
SNR：Choose channel 2，send 1K signal to MIC，adjust machine output . when the frequency deviation is 1.5k， SNR >40dB
Pre-emphasis：Choose channel 2, send 1K signal to MIC，adjust testing machine output, when frequency deviation is 0.8K，
fix this deviation point as 0 dB point，change modulation and testing:
0.3K：-11~-9 0.5K：-6~-4 1.5K：1~4 2K：3~5 2.50K：2~4 3K：-1~1 4K：-12-~9 5K：-20~-16
FM signaling：Enter test mode，choose CTC/DCS channel ，MIC short circuited，press PTT，adjust frequency knob，adjust
CTC deviation to 0.35K，when testing CTCSS 时，the decode frequency for the testing machine shall be ±0.5Hz
of the radio channel. DCS deviation adjust to 0.45K，with smoothing Waveform symmetry. When testing DCS，
the decode signaling for the resting machine shall be same as the radio channel.
Transmitting RB：Choose channel 2，adjust output power to maximum，send 1KHZ，2S signal，to check if the deviation is
between 2.3-2.5k，frequency 1KHZ±10HZ.
ECHO、MON testing：Choose channel 2，open ECHO function，adjust VOL, DEL, MON to maximum，Hold PTT，you shall hear
your own voice from the speaker，adjust MON，the voice will change，when adjust MON to the let end
MON is off，you will not able to hear your own voice from the speaker.
SWR testing：Choose channel 2，adjust output power to maximum，connect 2 Parallel load of 50R to the antenna connector，
SWR display ±2 bar when it is on 2.
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AM mode testing：
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