11-9-5. Checking Method for Each Part

No.

Part name

 

Checking procedure

1

Electrolytic capacitor

1. Turn OFF the power supply breaker.

 

(For boost, smoothing)

2. Discharge all three capacitors completely.

 

 

3.

Check that safety valve at the bottom of capacitor is not broken.

 

 

4.

Check that vessel is not swollen or exploded.

 

 

5.

Check that electrolytic liquid does not blow off.

 

 

6.

Check that the normal charging characteristics are shown in continuity test by

 

 

 

the tester.

 

 

side

C12 C13

C14

Case that product is good

 

 

IGBT

 

 

Pointer swings once, and returns

 

 

sink

 

 

slowly. When performing test

 

 

 

MCC-5009

once again under another

 

 

Heat

 

polarity, the pointer should return.

 

 

 

surface

 

 

 

 

 

Soldered

 

 

 

C12, C13, C14 →

760µF/400V

 

2

Diode block

1. Turn OFF the power supply breaker.

 

2.Completely discharge the four electrolytic capacitors.

3.Remove the diode block from the PCB (which is soldered in place).

4.Use a multimeter with a pointer to test the continuity, and check that the diode block has the proper rectification characteristics.

1

+

 

 

Tester rod

Resistance value

 

 

 

 

 

 

+

 

–

in good product

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

~

2

 

 

~

 

~

+ ~ ~ –

+ 1

 

 

~

 

 

3

 

2

 

3

 

∞

 

 

 

 

 

1 2 3 4

–

 

~ 2

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

–

4

 

(DBO1)

~ 3

 

 

 

 

 

 

 

 

 

 

 

10 to 20 Ω when the multimeter probe is reversed

– 80 –

Page 79 Page 81
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Toshiba RAS-B10GKVP-E Checking Method for Each Part, Case that product is good, Tester rod Resistance value Good product
Page 79 Page 81

RAS-10GAVP-E, RAS-16GAVP-E, RAS-13GAVP-E, RAS-B10GKVP-E, RAS-B13GKVP-E specifications

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