I am so happy found this site as it consists of so many Manuls and easy to aquire. This onei s exactly what I wanted and much more as it has info on not only how to use the tuner but how to repair it as well. I will come here 1st before purchasing else where! Thanks owner-manual.com!
is part of the manual is very useful for repairing
Here are circuit diagrams
if there is damage, I recommend using this part of the
a complete list of circuit boards and components
Text excerpt from page 15 (click to view)
( 4 ) Power cannot be turned on
Check whether IC201 pin 58 is 3V DC. Yes No Check whether IC201 pin 45 is 3V DC. No
Check whether the collector voltage of Q36 is less than 0.2V DC. No
Check safety switch SW201 and the circuits of the key matrix. No
Check Q36.
Check Q201.
Yes
Check whether the collector voltage of Q37 is more than 5.8V DC. No