I am only search for 5 Minute, by it in 5 Minutes to and get ist in few ours! Best i found in the Internet and my Amplifer is repaired as well! Thank you
I found the manual to be clear concise and complete. It was of immense assistance when removing the unit as the unit was over 22 years old and the wiring diagram was unobtainable from the manufacturer. The exploded drawings were clear as were the instructions and labels.
Text excerpt from page 44 (click to view)
3.2 Check the B/E microprocessor
Are the +3.3V_D1 and +2.5V_D2 of Q102 voltage lines normal? OK
NG
Check the soldering of Q117 and Q116, and the input/output voltage. NG OK Input voltage is OK: Check the soldering of circumference components of Q102. Soldering is OK: Replace Q117 or Q116. Refer to �1. POWER SUPPLY PCB�.
Is the clock waveform of 18pin on Q102 normal? (27MHz. 2Vp-p) OK
NG
Check the waveform of 4pin on Q105. (27MHz 2Vp-p) NG OK Check the soldering of R168 and R153. Check the soldering of X101, circumference components and Q105.
Is the 15pin of Q102 H? OK Are the +3.3V_D1 and +1.8V_D1 of Q101 voltage lines normal? OK
NG
Check the soldering of QU01 (28pin), R156 and C161.
NG
Check the soldering of Q118, and the input/output voltage. OK Input voltage is OK: Check the soldering of Q101. Soldering is OK: Replace Q118.
Is the clock waveform of 18pin on Q106 normal? (27MHz. 2Vp-p) OK
NG
Check the waveform of 3pin on Q105. (27MHz 2Vp-p) NG OK Check the soldering of R170 and R101. Check the soldering of X101, circumference components and Q105.
