Job Number

0210-59

Equipment type

Car Stereo Cassette and amplifier

Maker + Model #

Pioneer KEH-5300

Made in

Japan

Client Info

Donald’s friend

Date in

04-Oct

2002

Date of repair

05-Oct

2002

Date out

10-Oct

2002

Comments

BAD

1

 No sound from bothe channels

GOOD

1

 Powers up and shows good control and tuning

Full repair description and observations

1

The first suspect fell on the power amplifer IC, which was a Toshiba TA8215. It showed signs of burn and so it was obvious.

2

 The IC was replaced and the stereo deck was assembled. On checking still no sound was present. I was very puzzled?!

3

 I bought another IC in case it needs to be replaced again. I opened the unit to check the voltages on the IC.

4

 I found out that one pin of the IC was not soldered, and there was an open track in the mute pin which I casued myself with the hot sopldering iron while removing the old IC. Fixing these open tracks, caused the stereo to produce good sound again

Repair summary

 Power Amplifier IC broken

Precautions, fouls and advises

1

When replacing an IC always check that all pins are making continuity with the neighbouring component/link. This would saved me from wasting time and money (since I bought another IC)

1

n/a