5-6
5-5 BACKUP BATTERY FLOWING CURRENT VERIFICATION
1. Turn OFF the transceiver’s power.
2. Remove the top cover. (Refer to DISASSEMBLY INSTRUCTIONS in SECTION 3.)
3. Remove the backup battery (BT5081) from J5081 on the MAIN UNIT.
4. Apply 3.0 V DC to the point in the illustration shown below, through the digital multimeter.
5. Verify that the current value indicated on the digital multimeter is less than 0.8 μA.
6. Insert the backup battery into J5081 on the MAIN UNIT, and then attach the top cover.
J5081J5081
MAIN UNIT
Backup battery
6
J5081
J5071
J4941
C5661
C5081
C5013
C5012
C5011
C4920C4918C4917C4916
C4915
C4912C4911C4910
R5684
R5662
R5661
R5645
R5108
R5107
R5089
R5087
R5086
R5085
R5084
R5083
R5081
R5072R5071
R5026
R5021
R5013
R5012
R5011
R4988
R4981
R4146
R4109R4108
R4107
EP5071
Q5661
Q5082
Q5081
Q4142
IC5661
IC5081
IC5011
IC4901
FI5071
EP4901
D5081
D5071
D4101
C5644
C4919
C4914
C4913
C4101
DC POWER SUPPLY #2
(3.0 V/1 mA or more)
DIGITAL MULTIMETER
(0.1 μA to 1 mA )
5-6 DSC SELF CHECK TEST
The Self Check test sends DSC signals to the receiving AF circuit to compare the sending and receiving signals at the AF level.
1. Open “Self Check Test.”
[ [MENU] > DSC Settings > Self Check Test ]
2. Push , or to start the Self Check Test.
3. When the sending and receiving DSC signals match, “OK” is displayed.
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