i have nothing from the horiz circuit. the horiz circuit has failed.

i think U1001 is bad.

i removed the horiz drive xistor. when power is pressed, NO waveform on the
base of the transistor. im looking for a strong saw or square wave i assume.
well i have nothing but a little bit of noise when the power is pressed. and
i have to crank the scope up to see it.

now if i scope out pin 23, the H-drive out. i have the same type of noise,
but a little bit bigger in amplitude.

shouldnt i have a strong defined square pulse? at 15.25khz. well i get a
faint bit of noise. almost like a ring type of noise.


when power is pressed, the 9v VCC to the hoiz osc of U1001 goes present. so
whats left. U1001?



"Ken Weitzel" wrote in message
news:EYPuh.809791$1T2.414831@pd7urf2no...
Mike wrote:
i think its the horiz circuit.


When i press power, pin26 of U1001 jumps to about 8.6 volts. holds it for
about 3 to 5 seconds, and drops back down. jumps back up each time i
press power.

there is NO drive on the HOT. on any attempt. even on plugin. no drive.
somethings up.

Weird.... the 26 volts you mentioned was present in a previous message is
derived from horizontal scan... ???

Ken