Pioneer DEH-66DH Service Manual page 53

6.2 CHECKING THE KEYBOARD UNIT
When checking the Keyboard Unit and Tuner Amp Unit
, set the unit as shown in the figure. Secure the
Keyboard unit by using adhesive tape to prevent it from
becoming unstable during the check.
Even without the CD mechanism module, the minimum
necessary items, such as the EL check, can be checked.
In the Keyboard Unit and Tuner Amp Unit , there are EL
high-voltage sections with the description of "HIGH
VOLTAGE". Therefore, special care should be taken
when handling them to prevent electrical shock.
DEH-66DH,46DH
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