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SERVICE MANUAL
MODEL
DN-D4000
DOUBLE CD PLAYER
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: 03 (3837) 5321
X0171V.01 DE/CDM 0303
For U.S.A., Canada, Europe
& Korea model
Please use this service manual with referring to the
operating instructions without fail.
Some illustrations using in this service manual are
slightly different from the actual set.


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1
DN-D4000
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.
LASER RADIATION
Do not stare into beam or view directly with optical instruments, class 3A laser product.
(1)
(2)
500V
1M
(1)
(2)


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2
DN-D4000
DISASSEMBLY
(Follow the procedure below in reverse order when reassembling)
1. TOP COVER
(1)
Remove 4 screws on the both sides, and 1 screw on rear side, then remove 1 upper screw.
(2)
Pull up Top Cover.
2. FRONT PANEL
(1)
Detach 2 Blind Labels on the bottom chassis.
(2)
Move CD Mecha Rack in the arrow direction through the label detached chassis opening. Loader Frame comes out.
(3)
Pull up Loader Panel while pulling it towards front.
(4)
Remove 2 upper screws and 3 lower screws, and 2 screws on both sides.
(5)
Detach Front Panel.


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DN-D4000
3. MECHANISM UNIT
(1)
Disconnect FFC cable.
(2)
Rrmove 8 lower screws
(3)
Remove 4 screws on rear side.
NOTES:
(a)
Do notpull out aslant to prevent the FFC cable from damage.
(b)
Do not fail to pull out AC cord from wall outlet befor disconnecting the FFCcable. If the ACcord is remained
plugged into wall outlet, the power is kept supplied in the unit, which may cause danger.
4. MAIN P.W.B.
(1)
Remove 4 screws.
(2)
Disconnect Connector.
(3)
Detach Main P.W.B.


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DN-D4000
5. CD MECHA.
(1)
A gear is turned and a tray is opened.
(2)
Remove 4 upper screws.
(3)
Detach CD Mecha.
6. COVER ( REMOTE CONTROL UNIT )
(1)
Remove 5 screws.
NOTE:
(a)
Remote Control Unit and its back panel are connected with cables, so pay attention when removing the back pan-
el.
Gear