ÅHOME         Motrac Mods and Things-To-Do  ÅBACK

THINGS TO DO AND CHECK  ON OLD MOTRACS:

1016

1. CHECK OR PUT IN .22 UF PIN 10 MICOR CHIP[U1]

2. REPLACE R8 [100] WITH A 100 OHM 1/2 W

MOTRAC

1.OSC. BOARD

   A. MAKE SURE CR15 IS IN TO COMPLETE REG.CIRCUIT 9.7V.

   B. BYPASS 9.7V WITH .001 CHIP

   C. BYPASS A+ WITH 2- .001 CHIPS

2. 8 MHZ IF BOARD

      A. BYPASS A+ CLOSE TO Q2 WITH .001 CHIP

      B. BYPASS  A+ CLOSE TO Q3 WITH  .001 CHIP

      C. BYPASS A+  AT L25 WITH 1 UF TANT. AND .001 CHIP

3. 455 KHZ IF BOARD

      A. BYPASS  A+ AT L23 WITH 1 UF TANT. AND .001 CHIP

      B. BYPASS  A+ CLOSE TO Q10 WITH 1 UF TANT.

4.AUDIO BOARD

      A. PUT A 3.3 UF ACROSS C335 [.22]

      B. BYPASS AT A+ FEED [L308] WITH A 100 UF/25V CAP

      C. BYPASS A+ AT R336 WITH .01 UF CHIP 

********************************************************************

LATER,

WA5LNL, DINK Stockert

ÅTOP