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For U.S.A., Canada, Europe,
Korea model
SERVICE MANUAL
MODEL DN-C615
STEREO CD/MP3 PLAYER
Some illustrations using in this service manual are slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: 03 (3837) 5321
X0160 NC 0211
DN-C615 2
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.
SPECIFICATIONS
CD SECTION
Type: Single-mechanism compact disc player
Audio channel: 2 channel stereo
Quantization: 16-bit Liner
Sampling Frequency: 44.1kHz at Normal Pitch
Oversampling Ratio: 8 times
Frequency Response: 20 to 20,000Hz
Total Harmonic Distortion: 0.007%
Signal-to-noise Ratio: 107dB
Dynamic Range: 98dB
Channel Separation: 90dB
Analog Output: RCA jack
Output Level: 2.0 V at 0 dB disc
Load Impedance: 10k/kohms or more
Digital Output: RCA jack
Signal Format: SPDIF or IEC-958 Type II
Variable Pitch Control: 12% max.
Frame Search Accuracy: 1/75 second
Discs: Standard compact discs (12cm and 8 cm)
CD Mechanism Service Life: 1000 hours (continuous playback)
REMOTE Wired Remote Control Connection (Stereo mini jack)
Remote Control Sensor
GENERAL
Headphone Output: Stereo
Outputs Level: 410mW
Load Impedance: 33/ohms
Power supply: 120V AC 10%,60Hz (for U.S.A & Canada models)
230V AC 10%,50Hz (for European & U.K. models)
Power Consumption: 13W
Dimensions: 482 (W) x 88 (H) x 280 (D) mm
Installation: 19-inch rack mountable (2U)
Mass: 4.7kg
*For improvement purposes,specifications and design are subject to change without notice.
2
DN-C615 3
DISASSEMBLY
(To reassemble, reverse disassembly)
1. TOP COVER
(1) Remove 4screws from both sides and 2 screws from back Panel.
Screw
Top cover
Screw
Screw
2. FRONT PANEL
(1) Pull Loader frame frontward, and remove loader panel.
(2) Remove 2 front panel upper screws.
(3) Undo 2 front panel upper hooks.
(4) Pull front panel and undo 3 lower hooks.
Loader Panel Screw
Front panel
Hook
3
DN-C615 4
3. MECHANISM UNIT
3.1. How to remove a mechanism unit in case a power supply is not turned on.
(1) Remove 4 screws on the Mecha base.
(2) Remove the CD Mecha to the arrow direction.
(3) Detach the Loader panel to the arrow direction.
(4) A gear is turned and a tray is turned in the direction of an arrow.
(5) A tray is pinched and it turns in the direction of an arrow.
(6) Remove 4 screws on the Mechanism unit
Loader panel
Screw
Screw
Gear
Tray
4
DN-C615 5
3.2. How to remove a mechanism unit in case a power supply is turned on.
(1) Remove 4 screws.
Screw
Screw
5
DN-C615 6
SERVICE PROGRAM
1. REQUIRED MEASURING IMPLEMENT