Main Pc Board Schematic - Polaroid Miniportrait 455 Repair Manual

5. Once the Flash is charged, the green READY LED lights and the Flash Unit delivers a
READY signal. Q7's base is cut off, energizing the release magnet circuit.
6. During the motor run and shutter charging, the OSC STOP terminal (CN4-4) is grounded,
stopping flash oscillation and interrupting capacitor charging to avoid the effects of
voltage drop.
Figure 2-10. Main PC board schematic
22