General information

 

Job Number

 

0302-70

 

 

 

 

Equipment type

 

 Audio: Stereo Cas/CD/Radio

Made in:

Korea

 

 

 

Maker/Model/Chassis

 

 ESC

MD-750

??

 

 

 

 

 

 

 

 

 

Dates

 2003

 

In

Repaired

Out

 

Thu.06.Feb

Sat.06.Mar

Thu.11.Mar

 

 

 

Comments

 

 

 

 

Symptoms observed

 

 

1

Sounds distorts badly on all souces (radio/CD/cassette) when volume is increased to normal level

 

 

2

No sound from left channel

 

Repair notes

 

Full repair description and observations

 

1

 The first suspect was straight off the audio output IC. This was a cheap IC and would not risk anything to change it. It was KA2206,

 

 

2

After it was changed sound was perfect on both channels. The boring thing about this model is that to replace the IC it requires dismantling lots of parts and it was very akward to perform the desoldering of the IC

 

 

Repair summary

SOUND OUTPUT IC FAULTY

 

 

 

Precautions, fouls and advises

 

1

N/a

 

 

 

Other measurements and technical comments

 

1