Crosley 9-413B Horizontal Issue

[zeno]

Hoz freq is off a little. Try the tube 1st no matter what a checker say.
HINT if you adjust coils or caps FLAG the tool with a piece of tape
so you can return to the start. After that look at the caps & test resistors.
When fixed the customer H hold should be apx half range.

BTW this is VERY common after a recap. Set works- recap- H osc off.

73 Zeno
LFOD !

[Chris K]

I've tried tube changes several times. I checked all of the resistors in both the horizontal and vertical circuits and replaced the ones that were even close to being out of spec. The caps have all been replaced and I even pulled the mica caps and tested them. Most were OK but the ones off value and leaky were replaced with 1% mica caps of the same value. I don't think this is component based...it's adjustment based and I've been trying for days. Does anyone know where to start other than the horizontal hold control set to the middle? I have the Riders service manual that gives a great description as to what the drive and lock in the circuit do but there's no technique described as to how to start the process of dialing in the horizontal from jump. I followed the Sams description of oscillator and lock setup but to no avail.

[Chris K]

Originally Posted by zeno

Hoz freq is off a little. Try the tube 1st no matter what a checker say.
HINT if you adjust coils or caps FLAG the tool with a piece of tape
so you can return to the start. After that look at the caps & test resistors.
When fixed the customer H hold should be apx half range.

BTW this is VERY common after a recap. Set works- recap- H osc off.

73 Zeno
LFOD !

I’ll have to go through the horizontal circuit again and make sure I didn’t make a cap replacement mistake. I’ve been mostly checking and checking resistors. I should make sure I didn’t replace a 0.022 with a 0.0022 etc.

[jr_tech]

Originally Posted by Chris K

I’ll have to go through the horizontal circuit again and make sure I didn’t make a cap replacement mistake. I’ve been mostly checking and checking resistors. I should make sure I didn’t replace a 0.022 with a 0.0022 etc.

Did you power up the set on a variac or dim bulb before re-capping to observe the operation (if any) of the sweep circuits?

jr

[Chris K]

Originally Posted by jr_tech

Did you power up the set on a variac or dim bulb before re-capping to observe the operation (if any) of the sweep circuits?

jr

No I didn't. I should have after I replaced the electrolytics but I did not.