ta7280 amp help

[unseenhero66]

uh yeah well dont know how to exactly say this but need any kind of help at all and it would be appreciated anyways my freinds car stereo keeps going out and ive got a few chips laying around and those chips are the toshiba ta7280p and ta7281p amp chips and ive foudn the data sheet to it but theres only a few minor problems lol it only tells me
the voltages on the pin arrangments which are

for pins 1,2,4,and 5 is 1.5v

3 & 9 are gnd

6,7 & 12 are 6.4v

8 & 11 are 12.3v

& 10 is vcc

so im a little confused

if theres anyone out there that could tell me which pins are what or if you have any designs for this that you would like built it would be greatly appreciated because this is going to drive me crazy untill i figure it out.....