Denon DN-C615 Manuel utilisateur

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

For U.S.A., Canada, Europe,

Korea model

DN-C615

 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: 10kΩ/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: 33Ω/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.

SPECIFICATIONS

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.

DN-C615

DISASSEMBLY

(To reassemble, reverse disassembly)

1. TOP COVER

(1) Remove 4screws from both sides and 2 screws from back Panel.

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.

Screw

Top cover

Loader Panel Screw

Hook

Front panel

DN-C615

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

Gear

Tray

Screw

DN-C615

3.2. How to remove a mechanism unit in case a power supply is turned on.

(1) Remove 4 screws.

Screw

DN-C615

SERVICE PROGRAM

1. REQUIRED MEASURING IMPLEMENT

• Reference disc (TCD784 or CO-74176)

1.1. What is Service Program

Service program is a special program intended for confirming servo functions etc.

1.2. µcom Version Check

• Refer to "Preset Functions and Operations" of the instruction manual.

• You can check the µcom version.

1.3. B.E.R. Checks and Automatic Servo Adjustment Call

• Switch on the power while pushing the 5 button and 6 button at the same time. And Loading a disc

by OPEN/CLOSE button.

(1) Block Error Rate

Press the PLAY button. B.E.R. is displayed.

01Tr **m XXXX XXXX: Block Error Rate

You can select the track by the 、button.

(2) Tracking balance and Focus balance data

Press the 2 button. Tracking balance and Focus balance data is displayed.

2±XXX±@@@ XXX: Tracking balance

@@@: Focus balance

(3) Focus gain data

Press the 3 button. Focus gain data is displayed.

3 XXXX XXXX: Focus gain

(4) Tracking gain data

Press the 4 button. Tracking gain data is displayed.

4 XXXX XXXX: Tracking gain

(5) Tracking offset and Focus offset data

Press the 5 button. Tracking offset and Focus offset data is displayed.

5 ±XXX±@@@ XXX: Tracking offset

@@@: Focus offset

(6) Press the 1 button to select the Block Error Rate data.

(7) To stop the B.E.R. Check and Automatic Servo Adjustment Call mode, please turn off the POWER switch.

Adjustment Item Adjustment Value indicator

1 Tracking Balance -025 ~ +025

2 Focus Balance -030 ~ +030

3 Focus Gain 0576 ~ 2304

4 Tracking Gain 0392 ~ 1569

5 Tracking Offset -005 ~ +005

6 Focus Offset -005 ~ +005

DN-C615

1.4. Test Mode (Heat Run mode)

• Switch on the power while pushing the 3 button and 4 button at the same time. "000TroHR0000" is

displayed. And the tray is opened

(1) Hold the disc by the edges and place it on the disc tray.

(2) Starting with the OPEN/CLOSE button, it repeats open/close of the tray and playback.

***TrxHRXXXX ***: Track No.

x : o, c, s, t, r, and p

XXXX: Cycle quantity

All tracks are played back if the track count is less than 20. Only the first and last tracks are played

back if the tracks are more than 21. When any errors, it stops and indicates error code

(Refer to the Error Code Table).

(3) To stop the Test mode, please turn off the POWER switch.

1.5. Error Code Table

Error Code CONTENTS

Error 01 Unable to close the loader tray in the regulation time.

Error 02 Unable to open the loader tray in the regulation time.

Error 03 Inner circle switch ON error even if the time is over.

Error 04 Inner circle switch OFF error even if the time is over.

Error 05 The focus offset adjustment result is outside the regulation range.

Error 06 Unable to adjust the focus offset in the regulation time.

Error 07 The tracking offset adjustment result is outside the regulation range.

Error 08 Unable to adjust the tracking offset in the regulation time

Error 09 The FE peak is outside the regulation range.

Error 0A The FE peak is outside the regulation range.

Error 0B Unable to adjust the focus rough gain in the regulation time.

Error 0C The focus rough gain is outside the regulation range.

Error 0D Unable to actuate focus in the regulation time.

Error 0E Unable to actuate tracking in the regulation time.

Error 0F Unable to adjust the tracking rough gain in the regulation time.

Error 10 The tracking rough gain is outside the regulation range.

Error 11 Unable to adjust the tracking balance in the regulation time.

Error 12 The tracking balance adjustment result is outside the regulation range.

Error 13 Focus servo down during automatic adjustment.

Error 14 Focus servo down during automatic adjustment.

Error 15 Unable to adjust the focus balance in the regulation time.

Error 16 The focus balance adjustment result is outside the regulation range.

Error 17 Track servo down during automatic adjustment.

Error 18 Unable to adjust the focus fine gain in the regulation time.

DN-C615

2. µCOM VERSION UPGRADE

System µcom can be upgraded in the following manner.

Version Upgrade Method

(1) Record the version upgrade software on a CD-R or CD-RW disc, only as one file with the format ISO9660 Mode-1. The file

name of the supplied version upgrade software should be used as is and this disc needs to finalize.

(2) Hold the disc by the edges and place it on the disc tray.

(3) Press the OPEN/CLOSE button to start the version upgrade.

"Version Up" "Push Play!" "xxxx->XXXX" are displayed.

xxxx : current version

XXXX : upgrade version

(4) Press the PLAY button.

"Now Writing" "Writing-XXX" are displayed.

XXX : count up from 000 to129

(5) When the version upgrade is finished, "Complete!" is indicated.

(6) Turn off the power once and turn on again. Press the OPEN/CLOSE button and remove the disc.

NOTE:

When the power is turned off before “Complete!” is displayed, µcon version is not written correctly.

Error Code CONTENTS

Error 19 The focus fine gain is outside the regulation range.

Error 1A Unable to adjust the tracking fine gain in the regulation time.

Error 1B The tracking fine gain is outside the regulation range.

Error 1C Unable to adjust automatically in the regulation time.

Error 1D Unable to read the subcode Q in the regulation time.

Error 1E Unable to read the TOC in the regulation time.

Error 1F Focus servo down during search (over the regulation time).

Error 20 Track servo down during search (over the regulation time).

Error 2116 Servo error during search.

Error 2103 Search error (over the regulation time).

Error 22 Discontinuity occurred, during write to the DRAM.

Error 23 The error which cannot be corrected to the read data.

Error 24 Unable to do the level detect.

Error 25 Unable to join data in the regulation time.

Error 26 The error rate when recording on the memory is over the regulation value.

Error 27 The subcode jump more than regulation.

DN-C615

BLOCK DIAGRAM

SN74LV244

3.3V 5V

I/F

TC74HCT7007

4M FLASH

ROM KEY

FLD

DRIVER

M66005FP

3.3V 5V

I/F

TC74HCT7007

16M DRAM

P. TRANS

MUTE

FLD

CLOCK GEN

SYSTEM uCOM

MN102H60KDA

3.3V 5V

I/F

TC74HCT7007

3.3V

I/F

MUTE

DSP

MN662791

AN22002A

DAC

PCM1716E

CD MECHA

MOTOR

ACTUATOR

P.U

DRIVER

AN8785SB

HEAD AMP

WIRED

REMOTE

RC5

OUT

EXT

H/P OUT

CD OUT

DIGITAL

OUT

DN-C615

SEMICONDUCTORS

IC’s

MN102H60KDA

(IC101)

MN102H60KDA Terminal Function

No. Pin Name Symbol I/O Det Ext Res Ini Function

1 P60, WAIT, SBT2 PCDMUTE O - Pd L L Mute for CD

2 P61, _RE _RD O - - Hi-Z - Read signal

3 P62, _WEL _WEL O - - Hi-Z - Write signal

4 P63, _WE, _WEH PEXTIN I - - Hi-Z - EXT.IN signal

5 _CS0,TM13OA _CS0 O - - Hi-Z - Chip select signal (MASK ROM operation : Input port)

6 _CS1, TM13OB _CS1 O - - Hi-Z - Chip select signal (IN/OUT)

7 _CS2, TM14OA _CS2 O - - Hi-Z - Chip select signal (Normal operation : Input port, MASK ROM operation

: F.ROM Chip select)

8 _CS3, TM14OB _CS3 O - - Hi-Z - Deck (Input/Output)

9 P54, _BREQ PEXTOUT O - - Hi-Z H EXT.OUT signal

10 P55, _BRACK PRMTOUT O - - Hi-Z H Remote output signal

11 P56, ALE, _ALE,

_BSTRE, TM15IA PMON2 I - - Hi-Z - Monitor signal 2

12 P57,_WORD _WORD I - H H H Data bit bus width select 'H': 8bit

13 P20,A00,SBT2 A00 A/O - - Unfix - Address bus

14 P21,A01,SBI2 A01 A/O - - Unfix - Address bus

15 P22,A02,SBO2 A02 A/O - - Unfix - Address bus

16 P23,A03 A03 A/O - - Unfix - Address bus

17 Vdd Vdd - - - - - Power supply (+3.3V)

18 BOSC,BIBT1,

BIBT2,PB0 PIRINH O - - Hi-Z L Infrared remote 'L': Enable / 'H': Inhibit

19 Vss Vss - - - - - GND(0V)

20 XI,PB1 PCE O - - Hi-Z L Chip select 'L': MN662791 / 'H': BU2618

21 XO XO - - - - - Not used. OPEN

22 Vdd Vdd - - - - - Power supply (+3.3V)

23 OSCI OSCI I - - - -

24 OSCO OSCO O - - - - OSCI output

25 MODE MODE I - L L L Mode select 'L': Processor mode

26 P24,A04,TM15IA A04 A/O - - Unfix - Address bus

27 P25,A05 A05 A/O - - Unfix - Address bus

28 P26,A06 A06 A/O - - Unfix - Address bus

29 P27,A07 A07 A/O - - Unfix - Address bus

30 P30,A08,_KI0 A08 A/O - - Unfix - Address bus

31 P31,A09,_KI1 A09 A/O - - Unfix - Address bus

32 P32,A10,_KI2 A10 A/O - - Unfix - Address bus

100

125 26

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