Technical Bulletin 2002-1

On Board MIP-921^{e or s} AM Radio Adjustment

Problem: MIP-921^{e
or s} AM radio will not tune to a frequency above 1000 KHz.

Fix: 1. Remove the top lid of the MIP. Apply power to the unit.

2. Configure the radio slot to AM.

3. Tune the radio slot to 880 KHz.

4. Use a DC voltmeter and monitor the voltage at test point "Tune Test" on the radio being tuned. The "Tune Test" point is on the left-hand side of the radio board near L8 when looking at the front of the MIP.

5. With a small blade screwdriver, adjust variable cap (C23) to minimize the voltage at the test point. Set the voltage to the lowest possible setting.

6. With a screwdriver, adjust variable inductor (L2) to further reduce the voltage until it reaches 4.0 volts. The "tuning" slug should be adjusted out or up from the metal case to get the desired results...i.e...counter clockwise.

If you have any questions, please call customer service at (308) 428-4705.

[Home] [Broadcast Products] [Cable Products] [Fixes] [Support] [Updates]
[Sales] [Info] [Search]