Bsr 40 rec sm

Page 2

DISASSEMBLY INSTRUCTIONS

1)

Dismounting of Front Panel (aluminum panel)

a) Pull out the knobs SELECTOR", _TREBLE and VOLUME".

b) Remove each nut which clamps the shaft of the switch and volume control resistor in the

positions SELECTOR, "TREBLE and VOLUME.

c) Remove other knobs.

d) Then the panel may be dismounted forward.
) Unsolder three points and remove one screw from the heat sink.
)

The transistor may then be pulled out.

e
f

Dismounting of chassis out of Wooden Cabinet.

a) Remove the screws (4mm) from the four corners of the bottom of the wooden cabinet.

b) Push the chassis from the rear side of the cabinet so that the edge of the rear panel comes out
without being hooked up by the pads equipped at the inside corners of the cabinet.

SE PARATION ADJ USTM E NT

1)

2)

General
Phase adjustment on MPX 86 must first be completed. Note that other adjustments on the set
before perfecting SG adjustment will not effectuate good reception of stereo broadcast.
Adjustment by 8G

a) Connect the me instruments as shown above. Set MPX 80 at L-modulation and turn T204 and
T205 so that the L-output of MCDONALD 40 becomes maximum.

b) Turn VR201 so that the R-output of MCDONALD 40 becomes minimum.

c) Set MPX SG at R-modulation and make adjustments in the R-output or L-output condition in the
same manner as above.

d) In this process, check that the stereo-indicator lights.

e) Make adjustments in the manner as above so that the separation of L vs. R and R vs. L is above
the specified scope.

Adjustment by Reception of Stereo Broadcast.

a) Adjust T301 and T302 so that the indication lamp is in its lightest condition.

b) Turn VR201 to make adjustment where R (or L) output becomes minimum when stereo broadcast
is in the condition of L (or R) modulation.