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 18 (click to view)
2. No Raster
No Raster
Is CRT heater red-hot?
No
Is Heater Voltage (CRT PWB) about 6V? Yes Trouble in power supply circuit
No
Trouble in CRT
Yes Turn the Brightness & Contrast control to set Maximum Yes
Refer to trouble in power supply unit.
Is whole screen bright?
No
Trouble in power supply circuit
Yes Check G1 voltage about -65V? Yes Is CRT G2 (screen) voltage about 510V? Yes Is 75Vdc line normal? No Trouble in 75Vdc Refer to trouble line of power in P.S.U supply unit No
Trouble in G1 line of Main PWB
No
Trouble in FBT
Yes Does turning the Brightness control counterclockwise make screen bright? Yes Trouble in FBT