Labels:book | bulletin board | crt screen | monitor | reckoner | sky OCR: 916 KENWOOD SERVICE BULLETIN AMA TEUR RADIO SUBIEGT DATE PS-5 INPROYED VOLTAGE SORGE FROTECTION 5-23-86 We have received few reporte regarding the l06s of transitor Q4 res istors and and zener diode the AVR UNIT Appa entl ltage surqe on the power input might aus D4 to shor this occu the surge current thru res tore RZ ans could cau5 ing the fai lure the twe istors and 04 Procedure an the AVR UNIT (X43 -1520 00 open remove diode D4 The drawi ings below show the locat ion this component If eceive unit with no output voltage check D4 R2 R3 and Q4 You should rep] ace RY and 4 there aue sign of damage these nomporent Or Kauoue ChT Cur AYR dur This Change applies to units with serial numbers before 704001 less Time requi reo this modif icat Lon hour 52396TK CCLM OIHL KENWOOD CCMMLINICATIONS MAI_I ...
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