•
Check the fuse.
•
Check impedance of rectifier bridge: 2.1M; supply power of 80V by
isolation transformer, voltage of rectifier
、
−
:around 120V:
impedance of Q3~Q8(IGBT): 10K
•
Check impedance of T2’s output voltage: impedance of D20: around
5.7K; Voltage: around 7V; impedance of C3/C57: around 309
Ω
;
Voltage: around 5.2V; impedance of C5:0.6K; voltage:around
3.3V; impedance of C38:1.6M; Voltage: 15V
•
Check U37 on main board: ( check impedance between leg 1,
leg 2, leg 3 ,leg 5 and leg 8[ground], whether it is in short
circuit.
No power/No display
ERROR SOLUTION
Summary of Contents for WR580
Page 1: ...WR580 PRODUCT MANUAL V1 0 ...
Page 2: ...Application Model Code Hardware Structure Error Solution Catalogue ...
Page 5: ...Composition of the product ...
Page 9: ...Model description motor Motor model serial number ...
Page 21: ...Function Aging mode Press to enter the aging mode Then press to start press again to stop ...
Page 24: ...External interface definition power 1 2 3 4 Ground wire Power Socket definition L N ...
Page 28: ...Main board PCBA appearance ...
Page 29: ...Control box theory diagram ...
Page 60: ...谢 谢 ...