Service Notes - Fender Blues Junior III Service Manual

1. PCB ACCESS is accomplished by removing six
(6) upper screws from the cabinet back panel.
Please note that the lower (2) screws are used
to secure P/N 00 COVER TUBE BLUES
JUNIOR
2. CHASSIS REMOVAL is accomplished by
removal of two (2) screws at the cabinet top
and two (2) screws at the cabinet sides.
Disconnect the ¼" speaker plug from the
speaker jack. Disconnect
connections at the reverbs tank to free the
cables from the reverb tank. After all cables are
disconnected, slide the chassis toward the rear
of the cabinet.
PCB EXCHANGE POLICY
Parts marked with a single asterisk (
Lists are not field replaceable. If a failure due to
one of these components is detected, please

SERVICE NOTES

two (2) RCA
) in the Part
*
BLUES JUNIOR™ III
(This is the model name for warranty claims)
3. PCB ASSEMBLY REMOVAL is accomplished
by removing the following items: six (6) knobs,
six (6) knob spacer bushings, one (1) input jack
nut and washer, and seven (7) PCB mounting
screws. Remove the chassis ground screw
from the green wire at the right of the PCB.
Disconnect the power transformer and output
transformer leads at P1-P18. Remove the
power LED from the red jewel lens cap by
gently pulling out the tulip assembly.
4. BREAKAWAY (TUBE) PCB REMOVAL is
accomplished by removing the five (5) tubes
and nine (9) screws and nuts.
contact the FMIC Customer Service Department to
order the complete PCB Assembly.
4