Yamaha DVC-6860 Service Manual

DVD PLAYER

DV-C6860

SERVICE MANUAL

SERVICE MANUAL

For U model

IMPORTANT NOTICE

This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal

IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service
departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and
specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.

WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have

IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.

recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.

accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).

DV-C6860

■ CONTENTS

TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . . 2–3

PREVENTION OF ELECTROSTATIC DISCHARGE . . . 4

LOCALE MANAGEMENT INFORMATION . . . . . . . . 4

FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

REPAIR NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

101004

© 2006 All rights reserved.

This manual is copyrighted by YAMAHA and may not be copied or

redistributed either in print or electronically without permission.

DISASSEMBLY PROCEDURES . . . . . . . . . . . . . . 9–10

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . 12–21

SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . 22–30

REPLACEMENT PARTS LIST . . . . . . . . . . . . . . 31–32

‘06. 02

DV-C6860

■ TO SERVICE PERSONNEL

1. Critical Components Information

2. Leakage Current Measurement (For 120V Models Only)

● Meter impedance should be equivalent to 1500 ohms

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where

applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.

DV-C6860

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to
solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling
food.

Components having special characteristics are marked Z
and must be replaced with parts having specifications equal
to those originally installed.

When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.

shunted by 0.15µF.

WALL
OUTLET

● Leakage current must not exceed 0.5mA.

● Be sure to test for leakage with the AC plug in both

polarities.

EQUIPMENT
UNDER TEST

INSULATING
TABLE

AC LEAKAGE
TESTER OR
EQUIVALENT

WARNING: Laser Safety

This product contains a laser beam component. This component may emit invisible, as well as visible radia-tion, which may cause eye
damage. To protect your eyes and skin from laser radiation, the following pre-cautions must be used during servicing of the unit.

1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the laser pick-up
unit at all times. Do not stare at the laser beam at any time.

2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.

3) CAUTION : Use of controls, adjustments or perform-ance of procedures other than those specified herein may result in hazardous
radiation exposure.

Laser Emitting conditions:

1) When the Top Cover is removed, and the STANDBY/ ON SW is turned to the “ON” position, the laser compo-nent will emit a beam for

several seconds to detect if a disc is present. During this time (5–10 sec.) the laser may radiate through the lens of the laser pick-up unit.
Do not attempt any servicing during this period! If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you
will not be exposed to any laser emissions.

2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the factory prior to shipping
from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this con-trol
can increase the laser emission level from the device.

Laser Diode Properties

Type: Semiconductor laser GaAlAs
Wave length: 650 nm (DVD)

780 nm (VCD/CD)
Output Power: 7 mW (DVD/VCD/CD)
Beam divergence 60 degree

VARO! : AVATTAESSA JA SUOJALUKITUS

OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASER-SÄTEILYLLE.
ÄLÄ KATSO SÄTEESEEN.

VARNING! : OSYNLIG LASERSTRÅLNING NÄR DENNA

DEL ÄR ÖPPNAD OCH SPÄRREN ÄR
URKOPPLAD. BETRAKTA EJ STRÅLEN.

2

WARNING

The use of optical instruments with this product will increase eye hazard.
Repair handling should take place as much as possible with a disc loaded inside the player.

DV-C6860

CAUTION

VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN.

AVOID EXPOSURE TO BEAM

ADVARSEL

SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING

UNDGÅ UDSÆTTELSE FOR STRÅLING

ADVARSEL

SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL

ÅPNES UNNGÅ EKSPONERING FOR STRÅLEN

VARNING

SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA

DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN

VARO !

AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA

NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE, ÄLÄ KATSO SÄTEESEEN

VORSICHT

SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG

WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETSEN

DANGER

VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN

AVOID DIRECT EXPOSURE TO BEAM

ATTENTION

RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS

D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU

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CLASS 1 LASER PRODUCT
LASER KLASSE 1 PRODUKT
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT
PRODUIT LASER DE CLASSE 1

DV-C6860

Warning for power supply

The primary side of the power supply carries live mains voltage when the player is connected to the mains even when the
player is switched off !

This primary area is not shielded so it is possible to touch copper tracks and/or components when servicing the player.
Service personnel have to take precautions to prevent touching this area or components in this area.

Note:
The screws on the DVD mechanism may never be touched, removed or re-adjusted.
Handle the DVD mechanism with care when the unit has to be exchanged!
The DVD mechanism is very sensitive for dropping or giving shocks.

3

DV-C6860

■ PREVENTION OF ELECTROSTATIC DISCHARGE

The laser diode in the DVD mechanism may be damaged due to static electricity from clothes or the human body. Use caution to
prevent electrostatic damage when servicing or handling the DVD-mechanism.

1. Grounding for electrostatic damage prevention

1. Worktable grounding
Put a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.

2. Human body grounding
Use an anti-static wrist strap to discharge the static electricity from your body.

DV-C6860

2. Handling of the optical pickup

1. To prevent damage to the optical pickup replacement parts during transportation and before installation,both ends of the laser

2. Do not use a tester to check the laser diode in the optical pickup.The power supply in the tester will damage the laser diode.

3. Handling Precautions for the Traverse Unit (Optical Pickup)

1. Handle the traverse unit (optical pickup)gently,as it is an extremely high-precision assembly.

2. The flexible cable lines may break if an excessive force is applied to it.Use caution when handling the cable.

3. The semi-fixed resistor for laser power adjustment should not be adjusted.Do not turn the resistor.

■ LOCALE MANAGEMENT INFORMATION

Locale Management Information : This DVD player is designed and manufactured to respond to the Locale Management Information that
is recorded on a DVD disc. If the Locale number described on the DVD disc does not correspond to the Locale number of this DVD
player, this DVD player cannot play this disc.

Anti-static wrist strap

1MΩ

Conductive material
(sheet) or steel sheet

diode are short-circuited.After installing the new part,remove the short circuit according to the correct procedure in this
service manual.

This product incorporates copyright protection
technology that is protected by method claims of
certain U.S. patents and other intellectual property
rights owned by Macrovision Corporation and other
rights owners. Use of this copyright protection
technology must be authorized by Macrovision
Corporation, and is intended for home and other limited
viewing uses only unless otherwise authorized by
Macrovision Corporation. Reverse engineering or
disassembly is prohibited.

4

5

2

1

4

2

5

5

6

3

2

4

■ FRONT PANEL

■ REAR PANEL

DV-C6860

DV-C6860

■ REMOTE CONTROL

5

DV-C6860

■ SPECIFICATIONS

● PLAYBACK SYSTEM

DVD-Video

Video CD & SVCD

CD

PICTURE CD

CD-R, CD-RW

DVD+R, DVD+RW

DVD-R, DVD-RW

● VIDEO PERFORMANCE

Video (CVBS) output 1 Vpp into 75 ohms

S-Video output Y: 1 Vpp into 75 ohms

Component video output Y: 1 Vpp into 75 ohms

DV-C6860

Black level shift On/Off

● TV STANDARD (PAL/50 Hz) (NTSC/60 Hz)

Number of lines 625 525

Playback Multistandard (PAL/NTSC)

● AUDIO FORMAT

Digital Mpeg/ Dolby Digital/ Compressed Digital

Analog Sound Stereo

C: 0.3 Vpp into 75 ohms

PB/CB PR/CR:

0.7 Vpp into 75 ohms

DTS

PCM 16, 20, 24 bits

fs, 44.1, 48, 96 kHz

MP3(ISO 9660) 24, 32, 56, 64, 96, 128,

256 kbps

fs, 16, 22.05, 24, 32, 44.1,

48 kHz

WMA 32–192 kbps, mono, stereo

fs 44.1 kHz 2 Hz- 20 kHz

CD/VCD fs 44.1 kHz 2 Hz- 20 kHz

Distortion and Noise (1 kHz) 0.0035%

● CONNECTIONS

Y output Cinch (green)

P

B/CB output Cinch (blue)

P

R/CR output Cinch (red)

S-Video output Mini DIN, 4 pins

Video output Cinch

Audio output (L+R) Cinch

Digital output 1 coaxial

IEC60958 for CDDA / LPCM

IEC61937 for MPEG 1/2,

Dolby Digital and DTS

● GENERAL

Dimensions (w x h x d) 435 x 75 x 425 mm

(17-1/8” x 3” x 16-3/4”)

Weight Approx. 5.5 Kg (12 lbs 2 oz)

Finish

Black color U model

Silver color U model

Power Supply

Power inlet U model 120 V, 60 Hz

Power usage Approx. 15 W

Power usage standby < 1 W

● ACCESSORIES

Remote control x1

Batteries x 2

Audio/video cable x1

● AUDIO PERFORMANCE

DA Converter 24 bit

Signal-Noise (1 kHz) 115 dB

Dynamic range (1 kHz) 100 dB

DVD fs 96 kHz 2 Hz- 44 kHz

fs 48 kHz 2 Hz- 22 kHz

SVCD fs 48 kHz 2 Hz- 22 kHz

6

* Specifications subject to change without notice.

Manufactured under license from Dolby
Laboratories.
“Dolby” and the double-D symbol are trademarks
of Dolby Laboratories.

“DTS” and “DTS Digital Out” are trademarks of
Digital Theater Systems, Inc.

■ DIMENSIONS

DV-C6860

425 (16-3/4”)

75

435 (17-1/8”)

■ INTERNAL VIEW

12

(3”)

Unit: mm (inch)

3

DV-C6860

1 POWER SUPPLY UNIT
2 DVD 5-DISC CHANGER MODULE
3 AV P.C.B.
4 MONO P.C.B.
5 BRACKET FRONT
6 FRONT (2) STANDBY/ON P.C.B.
7 FRONT (1) DISPLAY P.C.B.
8 FRONT (3) OPEN/CLOSE P.C.B.

4

5

67 8

7

DV-C6860

■ REPAIR NOTES

1. DVD 5-Disc Changer Module

The DVD 5-disc changer module consists of the CM unit and tray ass’y. The DVD 5-disc changer module is supplied as a
whole. Neither the CM unit nor tray ass’y can be supplied independently.

2. Power Supply Unit

The power supply unit has to be replaced in case of failure.

3. PCB Assembly

When a failure has occurred in the PCB assembly, replace each P.C.B.

DV-C6860

8

■ DISASSEMBLY PROCEDURES

DV-C6860

See exploded view for item numbers

Front Panel [101]

➞

Remove 2 screws.
[260] (Bracket front to bottom frame)

➞

Unlock front panel from frame by
releasing successively 4 snaps.
(2 on the side and 2 on the bottom)

➞

Remove 2 cable connections.
[CN1][1111]

Bracket Front

➞

Remove 4 screws. [252]
(Bracket front to front panel)

➞

Remove Bracket front.

FRONT (2) Standby/ON P.C.B [1200]

➞

Remove cable connections.
[1113]

➞

Remove 3 screws. [252]

➞

Dismount P.C.B.

FRONT

(3) Open/Close P.C.B [1200]

➞

Remove cable connections.
[1112]

➞

Remove 5 screws. [252]

➞

Dismount P.C.B.

Top Cover [240]

➞ Remove 7 screws. [260]

➞ Lift top cover from rear side

➞ Remove 2 screws. (1) (Fig. 1)

Dismount clamper ass’y. (Fig. 1)

➞
➞

Solder the lands of the optical pick up.
(Fig. 2)

DVD 5-Disc Changer Module

Tray Ass’y

➞

Remove stopper screw (2)
on the tray.
(See Removal of tray Ass'y)

➞

Open tray.
(See
the tray)
Gently pull the tray out.

➞

CM Unit

➞

Remove 4 cable connections.
[1101][1201][1202][1512]

➞

Remove 5 screws. [260]

➞

Dismount CM unit.

(Fig. 4)

(Fig. 3)

how to manually eject

(4 on side and 3 rear side)

to remove.

MONO P.C.B [1300]

➞

Open tray.
(See how to manually eject
the tray)

➞

Remove 5 cable connections.
[1101][1102][1201][1202]
[1401]

➞

Remove 4 screws. [260]
(P.C.B to bottom frame)

➞

Dismount MONO P.C.B.

(Fig. 3)

Mounting

Dismounting

AV P.C.B [1500]

➞ Open tray.

(See how to manually eject
the tray)

➞ Remove 5 cable connections.

[1500] [1503] [1505] [1508]
[1512]

➞ Remove 5 screw. [252]

(P.C.B to rear panel)

➞ Remove 2 screw. [260]

(P.C.B to bottom frame)

➞ Dismount AV P.C.B.

(Fig. 3)

Power Supply Unit [1000]

➞ Open tray.

(

See how to manually eject

the tray

➞ Remove 3 cable connections.

[CN1] [CN3] [CN4]

➞ Remove 2 screws. [260]

(P.C.B to bottom frame)

➞ Release 2 spacers locking.

(P.C.B to bottom frame)

➞ Dismount power supply unit.

)

(Fig. 3)

FRONT

(1) Display P.C.B [1200]

➞ Remove 2 screws. [251]
➞ Dismount P.C.B.

When disassembling, use the special screw driver with tip shape in figure.

2.7 mm

T10

1.7 mm

T6

Power Supply Unit

Bracket Front

• Cable Connections

CN4

CN1

CN3

1508

AV Board

1512
1500

1503
1505
1401

1202

1201

MONO Board

1101
1102

B

1112

1111 1113

View B

FRONT (1)
Board

FRONT(2) BoardFRONT (3) Board

9

DV-C6860

• Preventive measure for laser diode from electrostatic breakdown

When replacing the MONO Board or DVD 5-disc changer module, solder between lands of the optical pick up P.C.B. to
protect the laser diode against electrostatic breakdown.

1

Notes

• Use an anti-static soldering iron to short-circuit and unshort­circuit laser diode.

• After you have finished repairing, remove the solder from the

Traverse Unit

Clamper Ass’y

Fig. 1

short-circuit location.

Optical Pick Up

Solder

Fig. 2

• How to manually eject the tray

a. Turn the player bottom up.
b. Move the slider in the direction indicated with a screw driver until the tray is ejected.
c. Gently pull the tray out.

1. Removal of Tray Ass’y

* The tray ass’y cannot be supplied independently. The tray

ass’y is contained in DVD 5-disc changer module and supplied
as a DVD 5-disc changer module.

a. Remove the top cover.
b. Open tray (see How to manually eject the tray).
c. Remove 1 screw (2).
d. Remove the tray ass’y.

•

Precaution for installation of the tray ass’y.

On tray ass’y setting.
Check the direction of marking “▲” on gear
according to this drawing.

Gear/L0

Front Panel

Gear/L01

Marking

Fig. 5

Top Cover

Tray Ass’y

a.

b. d.

2

Fig. 4

Tr ay

c.

a.

Fig. 3

Bottom Frame

b.

Slider

Rear

Front

Screw Driver

Slider

2. Removal of Table

* The table cannot be supplied independently. The table is

contained in DVD 5-disc changer module and supplied as a
DVD 5-disc changer module.

a. Remove the plate/table in Fig.6.
b. Remove 1 screw (2)and then take off the table in

Fig.6.

Fit the table to the thick line on “/ ” mark.

2

Plate/ Table

IMPORTANT: Installation of Table.

Install the table according to the following procedure.

1)Slide the lever so that the gear/RT becomes
free. (Fig.7)

2)With the “▲” mark on the gear/RT aligned with
the same mark on the tray, lock it with the lever.
(Fig.7)

3)Install the table by aligning it to the thick line on
“/ ” mark. (Fig.6)

* Check that the table is locked after installation.

Fit the Gear/RT to “▲” mark.

Gear/RT1

Tray

Lever

Lock

10

Table

Fig. 6

Unlock

Fig. 7