Bose companion 3 ii troubleshooting tips

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Troubleshooting Tips, continued Product Symptom Chec k Actio n Compa nion 3 series II No Audio Make su re th e unit isn't stuc k in st andby At IC U301, p lace you r po sitive prob e on pin 22 and the n egative prob e on g round. Toggle t he control pod b etwee n mute and stand by by touchi ng the to p of the control pod. Whe n the LED is gree n, the voltmeter sh ould read 11Vdc. Whe n the LED is yellow, the voltmeter sho uld re ad 0 Vdc. Compa nion 3 series II No Bass Che ck U3 Insert a 2 00 mVrms, 20 0Hz sig nal into J30 2. Check U3, pin 10 for a sign al going i nto the IC an d che ck pin 14 for the sign al comi ng out. If there is a sig nal goin g in b ut nothing comin g out, repla ce U3 usi ng the part num ber i n the Service Manual. Compa nion 3 series II Intermittent Audio from Left or Right Speakers Che ck J3 07 With the sp ea kers conn ect ed and an audi o so urce playin g, wi ggle the spe aker conn ection s an d listen to see if the aud io cuts o ut or becomes intermittent. Bef ore determi ning t he co nne ctors as a failure, be sure to ins pec t the spe aker cabl e for bro ken or intermittent conne ction s. J30 2 is non-re pairabl e; Repla ce th e module assembly. Compa nion 3 series II No Audio o r Dea d Unit Che ck the Co ntrol Pod Che ck the pin s insi de the di n con nector at the end of the control pod cable to see if any pin s a misshap ed, b ent or broken . Also, insp ect J308 to make sure none of the pins has brok en off. If the control pod conne ctor i s defective, repla ce it. 2