TAPR1.5
(A) Obtain a 14-pin PC mount IC socket, preferably with an integral VCC
decoupling capacitor, such as those made by AUGAT.  Turn the socket over.
Using fine insulated wire or resistor lead stubs, etc., construct the assembly 
as follows:  

I.   Wire pins 1, 4, 10, and 13 together
II.  Wire pins 3 and 11 together
III. Wire pins 2 and 9 together
IV.  Solder a 10k resistor between pins 1 and 14
V.   If you are not using a decoupled socket, solder a 0.047 uf capacitor
     between pins 14 and 7

(B) Once the assembly is completed, place it to one side and examine the modem
board.  Using a soldering iron and tweezers, lift the non-banded end of diode
D2 clear of its mounting hole.  Next, using the same procedure, lift the end
of R19 nearest to U5, the 7805 voltage regulator.  Bend the hanging ends of D2
and R19 together so that they touch.

(C) Using thin, flexible wire, connect point A (pin 12) on the double buffer
assembly to the joined ends of D2 and R19.  Secure with solder

(D) Using thin, flexible wire, connect point B (pin 5) on the double buffer
assembly to the mounting hole vacated by R19.  The area around the empty R19
hole is crowded, so solder carefully.

CONTINUED IN PART 4 OF 4 ...