Hitachi EUB-5500 Technical Manual page 44

Ultrasound diagnostic scanner
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3.2.7.2 Executing check program,
Start "Service Tools". --- See 3.2.1 (1), (2) and (3)
(1) 
Start "Service Tools". --- See 3.2.1 (1), (2) and (3)
(2) 
The following functions are available as check programs.
(3) 
RAM Test
1) 
A function to check if the memory that is an important component of each PCB works
normally
2) Pattern Test
A function to check if any PCB is faulty by inserting test patterns into plural points in
the signal processing line.
3) Channel Test
A function to check if analog circuits of transmission and reception waves work normally
 
by channel.
1)
1)
1)
1)
2)
2)
2)
2)
3)
3)
3)
3)
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