Denon DCM-340 - Adjustment

9 a EIT DCM -440/340 @
ADJUSTMENT
Microcomputer built in the unit, comprises service program to facilitate servo adjustment by pushing operation button.
1. Start service program
(1) Turn power switch OFF.
(2) Shortcircuit @ pin (SWOP) and @) pin (SWCL) of TP102 on P.W.B. (Main Unit)
(Caution) Do not touch other pins.
(3) Turn power switch ON.
(Service program starts, and displays track number ai )
(Caution)
@ When service program started normal operation of buttons will be defeated.
2. Service program function « Make sure a disc has been loaded in the NO.1 disc tray.
a
& OPEN/CLOSE Opens or closes the disc holder. @ Opens or closes only when disc is stopped.
@ Operate other keys after open or close.
Mi stop Stops system function. @ Displays track number {f {. ,
; @ Push when adjustment completed, or do it again.
> PLAY Starts focus servo and disc turns. @ Push when adjust tracking offset. AS
@ When completed, displays track number Lic .
Il PAUSE Starts focus servo, tracking servo, | @ When PAUSE button is pushed, starts tracking servo and slide servo.
: slide servo, spindle servo. @ When completed, track number {7 J.
Other button No normal operation. @ Do not operate buttons other than above.
@ If misoperated, immediately turn power switch OFF.
(Caution)
© Do not use remote control during service program mode.
3. Adjustment
(1) Location
MAIN UNIT
(Caution)
@ When playing back in state
of open top cover, there
may be possibility of
piayback failure due to
light entering into disc
detection sensor.
In such. case, shield the
light by hand or others so
that the light does not
come into sensor.
TPIO! TPI02
UO
TP101 TP102
© TEl © +5V
® vc ® NC
@® FOK @® SWOP
@ TEO @® SWCL
@ FEI @ GND
@ FEO @ HF
=@
FRONT PANEL
15