Denon DR-M33HX - Control Circuit Board Removal; FL Meter Removal; CTS Circuit Board Removal (DR-M44 HX only); Audio Circuit Board Removal

4. H ow to Remove the Control Circuit Board
(1) Remove the top cover 240 and the front panel 233
(Refer to section 1)
(2) Remove the front escuchion 221.
(Refer to section 3)
(3) Remove the connectors with lead wires which run from
the control circuit board 204.
FL counter circuit board side 5P connector CN404
Logic circuit board side 8P connector CN4
CTS circuit board side 4P connector CN701
CN704
(4) By unscrewing 3 screw (3x8 CBTS P tight) 301 holding
the control circuit board and loosening the 3 hooks on
the control circuit board 204 can be removed.
Note; When replacing the tact switch 257, always
check to make sure that it is not floating above
the circuit board. If it is floating, the switch
will be in the on condition when the set is
assembled.
7. How to Remove the Audio Circuit Board
(1) Remove the top cover 240 and the front panel 233.
(Refer to section 1)
(2) Remove the angl e ? 1P ^"f''r to section 2)
(3) Remove the front escuchion 221 and the meter win¬
dow 220.
(Refer to section 3)
(4) Remove the control circuit board 204, and the FL
meter 256. (Refer to sections 4, 5)
(5) Remove the CTS circuit board 217. (Refer to section
6 )
(6) Remove the connectors from the audio circuit board
203.
(7) Unscrew the 4 bottom cover holding screws (3x8 CBTS
P tight) 308 on the back side of the chassis 201 and
remove the bottom cover 218.
(8) Unscrew the screw 301 holding the Audio amp circuit
board.
(9) By lifting the front chassis 206 and loosening the 2
hooks on the chassis holding the audio circuit board
203, the audio circuit board can be removed.
5. How to Remove the FL Meter
(1) Remove the top cover 240 (Refer to section 1)
(2) Remove the connectors on the FL meter circuit
board 205.
(3) Remove the 2 screws (307) (3 x 8 CFTS S Tight)
which secure FL Meter, Screw (310) (3 x 10 CBS), and
washer (3W). Then the FL Meter may be removed.
CAUTION:
During assembly, avoid snagging the Shield Sheet (243),
which is located under the Counter/Meter Circuit board
(205), on the FL Meter.
6. How to Remove the CTS Circuit Board
(DR-M44HX only)
(1) Ftemove the top cover 240 (Refer to section 1)
(2) Remove the 4P connectors from the CTS circuit board
217.
(3) The CTS circuit board 217 can be removed upwards
by pulling it upwards and loosening the 2 hooks on
the chassis 201.
When Separating the Audio Circuit Board by itself
(10) Unscrew the nut holding the input volume 253
and remove the input volume and the shield bracket
209 toward the rear. .
(11) Unscrew the nut holding the output volume 254.
(12) Remove the spring plate holding the hedephone jack
255.
(13) By removing front chassis 206, the audio circuit
board can b% removed by itself. “
Note: Most repairs to the audio circuit board can be
performed by removing the bottom cover on
the chassis. Refer to the above procedure
only when necessary.
When reassembling, follow the procedures
in reverse order; however, if each of the
various parts are not assembled properly in
their respective position, the set cannot be
assembled. When assembling, check the
work of each step carefully.
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