I am so happy found this site as it consists of so many Manuls and easy to aquire. This onei s exactly what I wanted and much more as it has info on not only how to use the tuner but how to repair it as well. I will come here 1st before purchasing else where! Thanks owner-manual.com!
is part of the manual is very useful for repairing
Here are circuit diagrams
if there is damage, I recommend using this part of the
a complete list of circuit boards and components
Text excerpt from page 22 (click to view)
WM-EX550/EX552
AEP Model E Model
SERVICE MANUAL
SUPPLEMENT-1
File this supplement with the service manual.
Tourist Model
WM-EX552
WM-EX550/EX552
Subject: MAIN Board Modification
(ECN-WM700963)
� New/Former Discrimination [MAIN BOARD] (SIDE B)
Former Type: 1-664-732-11 New Type: 1-664-732-14 or 1-664-732-21