KenWood mix master - missing component

[Griff]

I am repairing a KenWood mix master which does not run at all.
The machine has a Triac is series with the motor (TXAL228B).
If I short the Triac, the motor will run.

Connected to the centre lead of the Triac is what I think was a
resistor, however all that is left of it are two wires, the component
is missing.

A 0.047uF cap is connected from the left terminal of the Triac to the
resistor. The cap is a little cracked and measures 0.08uF.

Can anyone please help me identify this component?


Thanking you,
Russell.

 

[Colin Horsley]

"Griff" <rg26ce1991@hotmail.com> wrote in message
news:2fd2626d-5c3a-4d15-a25d-e208cde81e86@g3g2000pre.googlegroups.com...

I am repairing a Kenwood mix master which does not run at all.
The machine has a Triac is series with the motor (TXAL228B).
If I short the Triac, the motor will run.

Connected to the centre lead of the Triac is what I think was a
resistor, however all that is left of it are two wires, the component
is missing.

A 0.047uF cap is connected from the left terminal of the Triac to the
resistor. The cap is a little cracked and measures 0.08uF.

Can anyone please help me identify this component?


Thanking you,
Russell.

Model?? It should be on/under the base.

Colin

 

[Phil Allison]

"Griff"

I am repairing a KenWood mix master which does not run at all.
The machine has a Triac is series with the motor (TXAL228B).
If I short the Triac, the motor will run.

Connected to the centre lead of the Triac is what I think was a
resistor, however all that is left of it are two wires, the component
is missing.

A 0.047uF cap is connected from the left terminal of the Triac to the
resistor. The cap is a little cracked and measures 0.08uF.

** The cracked cap is the culprit and of course needs replacing - use a
mains suppression cap ( class X1 or X2) rated at 250 volts AC.

The missing resistor is likely a 100 ohm 1/2watt composition type.

You can use a 1 watt wire wound or 2 watt metal film type.

Bet your triac is not working too.



...... Phil

 

[Franc Zabkar]

On Sun, 21 Dec 2008 21:54:44 -0800 (PST), Griff
<rg26ce1991@hotmail.com> put finger to keyboard and composed:

I am repairing a KenWood mix master which does not run at all.
The machine has a Triac is series with the motor (TXAL228B).
If I short the Triac, the motor will run.

Connected to the centre lead of the Triac is what I think was a
resistor, however all that is left of it are two wires, the component
is missing.

A 0.047uF cap is connected from the left terminal of the Triac to the
resistor. The cap is a little cracked and measures 0.08uF.

I have never seen a capacitor fail with a capacitance in excess of its
rated value. The only failure mechanism I can think of that would
produce this symptom is if the plates were pushed closer together. But
then the dielectric would be squeezed out.

Can anyone please help me identify this component?

The RC combination is a snubber to prevent dv/dt triggering:
http://en.wikipedia.org/wiki/Snubber#RC_snubbers

The article suggests that 100 ohms is a typical value.

Thanking you,
Russell.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

 

[Griff]

Sorry about not mentioning the model.
It is a Kenwood A703C.

Yes, I was very surprised to find the value of the capacitor had
increased.
I did have it disconnected from the rest of the motor control circuit
when I measured it.

Thanks for the replies.
Russell.

 

[Colin Horsley]

"Griff" <rg26ce1991@hotmail.com> wrote in message
news:017dc489-cfbb-46d9-8198-5fd17ba9747f@y1g2000pra.googlegroups.com...

Sorry about not mentioning the model.
It is a Kenwood A703C.

Yes, I was very surprised to find the value of the capacitor had
increased.
I did have it disconnected from the rest of the motor control circuit
when I measured it.

Thanks for the replies.
Russell.

For Kenwood A703C
Triac = TAG12 225 600
Cap = 0.047uF 600V
Resistor 56 OHM

Colin

 

[Griff]

Thanks for the info. Colin.
Can you please tell me the wattage of the resistor?

Thanks,
Russell.

For Kenwood A703C
Triac = TAG12 225 600
Cap = 0.047uF 600V
Resistor 56 OHM

Colin

 

[Phil Allison]

"Griff"

Thanks for the info. Colin.
Can you please tell me the wattage of the resistor?

** Jesus Christ - wot does this FUCKWIT ASS want next ???

Go FUCK OFF |

YOU ASININE PITA FUCKING TROLL !!





...... Phil

 

[Colin Horsley]

"Griff" <rg26ce1991@hotmail.com> wrote in message
news:943aca42-a31d-42eb-aa39-62c8116c32da@y1g2000pra.googlegroups.com...

Thanks for the info. Colin.
Can you please tell me the wattage of the resistor?

Thanks,
Russell.

0.5W

For Kenwood A703C
Triac = TAG12 225 600
Cap = 0.047uF 600V
Resistor 56 OHM 0.5W

Colin