[Mondial]

In a pinch, you can do a fairly decent alignment by connecting a VTVM or DVM across the AVC line and peaking the RF and IF stages for maximum negative voltage while tuning a local station. Since you are measuring carrier level, not audio modulation, a broadcast station can serve as a signal source.

It is certainly not as accurate an alignment done with a proper generator, but it will get you into the ballpark if the adjustments have not been tampered with and the IF is fairly close to its spec center frequency.