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Good quality, the manual help me to repair the echo/reverb section
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A good service manual with lots of info and a very fair price
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Great value, good scan, just as expected, everything that you need.
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Good scan, great price, but almost the same with the SV260 service manual.
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This PDF is very comprehensive. It includes drawings, parts lists, schematics, pictures, PCB drawings, mechanical layouts, etc. for all three stackable equipment. The scans are good too. Easy to read and no smudges or black lines. I have no complaints. I will make this site my first stop for finding my service manuals.
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.
Refer to B/E 2.
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