Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
Text excerpt from page 31 (click to view)
When you install the player on the wall
When you install the player on the wall, ask a qualified installer to do the job. The player should be installed in the following way. Attach the jack cover as in the same way for the horizontal installation. Fasten screws (not supplied) to the wall at the same height 3 1/4 in. (80 mm) apart. The screws should protrude by 3/16 to 7/32 in. (4 to 5 mm). Remove the seals covering the hanging holes. Hang the player on the screws. Push the player tightly against the wall.
3 1/4 in.
3/16 - 7/32 in.
Note
When you disconnect or connect the cords, take the player down from the wall.
Step 4: Connecting the Power Cord
Plug the player and TV power cords into an AC outlet. Do not connect the power cord of your player to the �switched� power socket of an amplifier (receiver). Otherwise, when you turn off the power of your amplifier (receiver), the settings for the player may be lost.
