Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Old July 26th 07, 03:04 PM posted to sci.electronics.repair
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Default !!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230power inverter ,anyone can help me?!!!!!!!!!!]

!!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230
power inverter ,anyone can help me?!!!!!!!!!!]

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Old July 26th 07, 05:08 PM posted to sci.electronics.repair
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Default !!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230 power inverter ,anyone can help me?!!!!!!!!!!]


"canyon" wrote in message
...
!!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230
power inverter ,anyone can help me?!!!!!!!!!!]


!!!!!!!!!!!!!!!No, we can't help you without a model number. Even then
there's a pretty slim chance. Most re-branders of Chinese garbage such as
"Sundox" don't want or expect these units to be fixed. They are generally
of the poorest quality, from design to component selection to manufacturing
they are designed to be disposable. !!!!!!!!!!!!!!!!!!!!!!!!!!!


!!!!!!!!!!!!!!!!!!!And, by the way, using those exclamation marks is both
pointless and annoying.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!Dave!!!!!!!!!!!!!!!!!!!!!!


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Old July 26th 07, 10:37 PM posted to sci.electronics.repair
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Default !!!!!!!hallo,i am searching for a repair manual for a sundox12v-230 power inverter ,anyone can help me?!!!model nr.400014


"canyon" wrote in message
...
!!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230
power inverter ,anyone can help me?!!!!!!!!!!]model nr.400014


!!!!!!!!!!!!!!!No, we can't help you without a model number. Even then
there's a pretty slim chance. Most re-branders of Chinese garbage such as
"Sundox" don't want or expect these units to be fixed. They are generally
of the poorest quality, from design to component selection to manufacturing
they are designed to be disposable. !!!!!!!!!!!!!!!!!!!!!!!!!!!


!!!!!!!!!!!!!!!!!!!And, by the way, using those exclamation marks is both
pointless and annoying.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!Dave!!!!!!!!!!!!!!!!!!!!!!

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Old July 27th 07, 02:59 AM posted to sci.electronics.repair
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Default !!!!!!!hallo,i am searching for a repair manual for a sundox12v-230 power inverter ,anyone can help me?!!!model nr.400014


"canyon" wrote in message
...
!!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230
power inverter ,anyone can help me?!!!!!!!!!!]model nr.400014



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Old July 27th 07, 08:12 AM posted to sci.electronics.repair
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Default !!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230 power inverter ,anyone can help me?!!!!!!!!!!]

On 26 Jul, 15:04, canyon wrote:
!!!!!!!hallo,i am searching for a repair manual for a sundox 12v-230
power inverter ,anyone can help me?!!!!!!!!!!]


Yes. Learn how to use the ! key. To fix the invertor, you could test
the output devices first, most likely culprits. A repair manual is
proably not what you'll need, and may well be unavailable.


NT



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Old July 28th 07, 11:11 PM posted to sci.electronics.repair
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Default QQQhallo,i am searching for info for a sundox 12v-230 power inverter500-1000w ,anyone can help me?QQQQ


Hallo,i am searching for a repair manual for a sundox 12v-230 500-1000w
power inverter ,anyone can help me?]model400014


One transistor is exploded and not readable

Who has the numbers of the transistors






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Old August 2nd 07, 06:14 PM posted to sci.electronics.repair
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Default QQQhallo,i am searching for info for a sundox 12v-230 power inverter 500-1000w ,anyone can help me?QQQQ

On Jul 29, 4:11 am, canyon wrote:
Hallo,i am searching for a repair manual for a sundox 12v-230 500-1000w
power inverter ,anyone can help me?]model400014


One transistor is exploded and not readable

Who has the numbers of the transistors


if the big transformer is exploded then replacing it should work.
disconnect the transformer from the circuit. connect two 12v bulbs
( or LED in series with 1k resistor ) with one end of each bulb
connected to the center tap wire and other to end terminals.turn on
the circuit and if the bulbs glow then the circuit is ok.

these days transistors are not used in the output stage of inverters.
MOSFET or IGBT are used.



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