Denon DR-F7 - Denon Tape Deck Maintenance Procedures; Disassembly Instructions

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DISASSEMBLY INSTRUCTIONS
How to Remove the Front Panel
Remove the six screws 303 from both sides of the top
cover 239 and take off the top cover.
Press the EJECT button 220 and open the cassette
compartment. Push the cassette window 203 upward
to remove from the cassette compartment. Return the
cassette compartment to the original position.
Note: Be careful when handling the cassette window,
as it is easily scratched.
Pull out the knobs 211, 212, 213, 214, 215.
Note: Be careful not to scratch the knobs and the clear
plastic parts.
Unscrew the four upper screws 300 and the four low-
er screws 301 of the front panel 202 ; pull the front
panel forward.
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How to Remove the Control Switch Circuit
Board and the FTS Switch Circuit Board
(DR-F7/F8)
Remove the front panel 202.
The control switch circuit board and the FTS switch
circuit board can be removed when the circuit board
holding screws 305 , behind the front panel, are un-
screwed.
Note: When assembling, make sure the cushions 210
and 217 in between the switches and the but-
tons are inserted into the guides of the front
panel 202.
Poor
button
operations
may
result
if
the
cush-
ions
are
not
properly
placed
into
the
guides.
How to Remove the Mechanisms
Remove the top cover 239 and the front panel 202.
Unscrew the Hall IC circuit board holding screw 304
and take out the circuit board.
Remove the belt from the counter 224 .
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Pull the push lever (G) 245 forward to remove it from
the Dolby switch 279 . Unscrew the three Dolby
circuit board 278 holding screws 304 and lift the
circuit board upward.
Disconnect the connectors with the lead wires, which
are connected to the mechanism, from the three places
on the audio circuit board and two places on the logic
circuit board.
Note: The orange line is the (R) channel and the white
line is the (L) channel for the two 2P connectors
used on the audio circuit boards. Make sure the
connections are correct when assembling.
(6) Unscrew the four holding screws 306 in the front
section of the front chassis 226 and the two bottom
cover 231 holding screws; by lifting, the mechanism
unit can be taken out,
When assembling, the gap between the Hall IC and the
counter magnet should be 0.5-1 mm.
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4. How to Remove the Logic Circuit Board
Removing the three logic circuit board 280 holding screws
304 and the two screws holding the radiator 248 and the
center angle 229 to lift out the logic circuit board.
5. How to Remove the Dolby Circuit Board
(1) Remove the top cover 239 .
(2) Remove the front panel 202 and the various knobs
211, 212, 213, 214, 215.
(3) Remove the push lever (G) 245 from the Dolby
switch 279 and unscrew the four Dolby circuit board
holding screws 304 to take out the Dolby circuit
board.
6. How to Remove the Audio Circuit Board.
( ) denotes DR-F6
(1) Remove the Dolby circuit board together with the
hinge.
Unscrew the selector switch 261 holding screws and
the nuts from the volumes 262 , 263 . (Remove the
nut from volume 263 .) 3
Unscrew the four screws 304 holding the audio circuit
board 260, and take out the screws 306 and the nuts
311 at the rear of the vertical mounted circuit board.
(Unscrew the five screws 304 holding the audio cir-
cuit board 260 .)
The audio circuit board can be taken out by sliding
it back and lifting.
Note: Most repairs to the logic and audio circuit boards
can be done by removing the bottom cover.
Refer to the above removal instructions as neces-
sary.
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7. Power Supply Section
Since the safety regulation applies to the power supply
section, be careful of the parts used and the soldering of
these parts when replacing.