Kenwood DVFS-3100 Service Manual

DVD/VCD/CD PLAYER

70%70%

POWRE

OUT

OUTOUT

YC

B CR

COMPONENT VIDEO

AUDIO VIDEO

R

L

DIGITAL OUT

(PCM/BIT STREAM)

COAXIAL

S VIDEO

DVF-3080-S/8100

SERVICE MANUAL

TENTATIVE

There are some of no KENWOOD’s parts# in parts list.

Panel * (A60-)

Tray panel * (A29)

Front glass (B03-3945-08)

Jack, RCA * (E63-)

In compliance with Federal Regulations, following are reproduction of labels on, or inside the product relating to laser product safety.

Caution : No connection of ground line if disassemble

the unit. Please connect the ground line on

rear panel, PCBs, Chassis and some others.

Case (A01-3925-08)

Power cord * (E30-)

* Refer to parts list on page 31.

KENWOOD Corp. certifies this equipment conforms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.

DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.

Please confirm that the following accessories are present.

Audio cord (Red, White) ...(1)

Batteries (R03/"AAA" -size) ...(2)Remote control unit ...(1)

(A70-1660-08)

Video cable(Yellow) ...(1) Coaxial cable (Black) ...(1)

DVF-3080-S/8100

The marking of products using lasers

(For countries other than U.S.A. and U.S.-Military)

The marking this product has been classified as Class 1. It means that there is no danger of hazardous radiation outside the product. Location: Back panel

CLASS 1

LASER PRODUCT

Caution on condensation

Before transporting or moving this unit, carry out the following operations.

1. Set the POWER ON/OFF switch to the ON without loading a disc.

2. Wait a few seconds and verify that the display shown appears.

"NO DISC"

3. Set the POWER ON/OFF switch to OFF.

Note related to transportation and movement

Condensation (of dew) may occur inside the unit when there is a great difference in temperature between this unit and the outside. This unit

may not function properly if condensation occurs. In this case, leave the unit for a few hours and restart the operation after the condensa-

tion has dried up.

Be specially cautious against condensation in the following circumstances:

When this unit is carried from one place to another across a large difference in temperature, when the humidity in the room where

this unit is installed increases, etc.

"DTS" and "DTS Digital Out" are registered trademarks of Digital Theater Systems, Inc.

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

The microprocessor may fall into malfunction (impossibility to operate erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, switch off the power, wait for several seconds, and then switch the power on again.

Operation to reset

ACCESSORIES / CAUTIONS

Accessories

Cautions

2

DVF-3080-S/8100

1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the Lever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejected about 15~20mm.

2) Pull the Tray Disc until it is separated from the Base Main completely.

Fig.

DISASSEMBLY FOR REPAIR

How to Reset Parental Lock.

1. Connect the TV set to DVF-3080.

2. Push the power switch of DVF-3080 to be on.

3. Check the display of DVF-3080 shown “NO DISC”.

4. Push the “SETUP” key of remote control and TV has “set up menu”

5. Select the “16:9” on TV.

6. Push #key 1 3 9 7 1 3 9 and ENTER. Push #key again if mistype.

7. Push the power switch of DVF-3080 to be off.

3

4

M

DISC

SPINDLE MOTOR

LOADING

MOTOR

DVD : A,B,C,D,RF0 CD : A,B,C,D,E,F,RF0

CDMDI,DVDMDI

PICK

UP

KEY Input

6MHz

B/Pb

IC502

KV802....

KV852....

1M

8BIT

FLASH ROM

M-RESET

ROMAD[0:19]

ROMRD

ROMWR

MD[00:15]

L/R

CVBS

R/Pr

G/Y

TV_DAC[0:3]

Y

C

VF+

AC 90V~240V

50HZ/60Hz

VF-

-27VA

5V

VD33,VD33D

12V

27MHz

PWRCTL

1.8V

IC504

AT24C02A

EEPROM

IC602

OP-AMP

RC901

R/C

LOAD[+,-]

FOCUS[+,-]

TRACK[+,-]

SPINDLE[+,-]

SLED

(FEEDING)

MOTOR

SLED[+,-]

M

VD33D

VD18/VD33

VD33D/5V

BCLK LRCLK DACCLK

IC604

MM1623XFBE

VIDEO BUFFER

IECDAOUT

COAXIAL

SPDI

D2_T[1:3] SCART_16:9 RGB_SEL

3V3M

CDLD,DVDLD,SVREF21

5V/8V

HOMESW

INSW,OUTSW

ROMDATA[0:7]

5.2VA

IC901

GMS81C2012(Hynix)

Front Micom

POWER BOARD

VFD_RXD

S_REQ

5.2VA

8V

DMUTE

IIC/VFD/DAC_SCK

IC503

1M

16BIT

4Bank

SDRAM

VD33D

IIC/VFD/DAC_TXD

+12V

5V

YC_MIX

VIDEO_SW

SER3,DAC_ML0

OPEN,CLOSE,SLEGP,SPINDLE,FOCUS,TRACK,SVREF

IC506

74LCX373

VD33D

GPOPALE

DAC_RST DMUTE D2_T[1:3] SCART_16:9 RGB_SEL

DAC_RST

CD_DVD, VR_CD,VR_DVD

CD_DVD_CT

XSFGN,XSFGP

CN505

EJTAG

TRST TDI TDO TMS TCK

3.3V1

3.3V2

VD18

IC601

CS4391

2DAC

IC201

IP4504

DRVSB

OPU_SEL

JACK

-27VA/VF+/VF-

DIG901

FLD DISPLAY

MA[00:11] DMCLK CSJ BA0 BA1 DQM WEJ CASJ RASJ

IC501

ALi M3355

DVF-3080-S/8100

1. Overall Block Diagram

BLOCK DIAGRAM

8VT

5VD

-23VA

VF+

RECTIFIER

LINE FILTER

SWITCHING IC

TRANS

FEED B.

5.2VA

VF-

RECTIFIER(FLD)

RECTIFIER(3.8V)

RECTIFIER(10V)

LPF

RECTIFIER(14V)

LPF

12V

PWR CTL

MULTI

REG.

1.8V

3.3V

RECTIFIER(5.2V)

LPF

AC100~240V

ON/OFF

PICK

UP

IC501

ALI M3355

DVDPLAYER

COMBO

CHIP

MD

IC201

IP4504

Motor Driver

IC503

64M

SDRAM

FLASH

ROM

EEP

ROM

DVDLD,CDLD,CD_DVD

DVDMDI.CDMDI

SVREF21

DVD:A,B,C,D,RFO CD:A,B,C,D,E,F,RFO

SLEGP,SPINDLE FOCUS,TRACK DRVSB,CLOSE OPEN,SVREF15

FOCUS+,FOCUSTRACK+,TRACK-

SPINDLE+,SPINDLE-

SLED+,SLED-

LOAD+,LOAD-

OPENSW,CLOSESW,LIMITSW

MA[0:11] DQM CLK CS CAS RAS WE

MD[0:15]

IIC/VFD/DAC_SCK IIC/VFD/DAC_TXD

ROMAD[0:21]

ROMRD ROMWR

ROMDATA[0:7]

2. Power(SMPS) Block Diagram

DVF-3080-S/8100

BLOCK DIAGRAM

3. SERVO Block Diagram

5

DVF-3080-S/8100

IC501(MPEG+DSP+RF)

ALiM3355

IC503

SDRAM

64M

IC504

EEPROM

FRONT PANNEL

IC502

KV802... KV852...

CPURST,

ROMWR,

ROMRD

ROMAD(0:19)

TV_DAC0

TV_DAC1

TV_DAC2

TV_DAC3

BCLK,LRCLK,DACCLK

DAC_RST

SER(0:3)

DAC_ML0

VIDEO

Interface

AUDIO

Interface

Pickup

DVD-MD1 , CD-MDI

SVREF21,

DVD:A,B,C,D,RFO

CD:A,B,C,D,E ,F ,RFO

F+, F-, T+, T-, CD_DVD

DVDLD CDLD,

IIC/VFD/DAC_CLK IIC/VFD/DAC_TXD

MRESET

,S_REQ

VFD_RXD

X501 27MHz

BA1,BA0 ,

CSJ,RASJ,

CASJ,WEJ

,DGM,

DMCLK

MD0:15 ,

MA0:11 ,

MPEG

(RGB)/(YPbPr)

CVBS

COMPONENT(Y.Pb.Pr)

SCART(RGB)

CVBS

IC604

VIDEO 6dB

Amp

IC601

AUDIO DAC

(2CH)

IC602

(OP Amp)

LPF&Buffer

AUDIO 'R'

AUDIO 'L'

MPEG

DAC_RST

DACCLK

BCLK

LRCLK

SER3

A/V JACK

BLOCK DIAGRAM

4. MPEG & MEMORY Block Diagram

6

5. VIDEO & AUDIO Block Diagram

DVF-3080-S/8100

Starting No.

1

1, 2

1, 2, 3

1, 2, 3, 4

1

1, 6

1, 2, 6

1, 2, 6, 8

1, 2, 6, 8,

9

1, 2, 7

1, 2

1, 2 ,13

1, 2, 13, 14

1, 2, 7, 12,

13, 14

1, 2, 13

1, 2, 7, 12,

13, 14, 15,

16, 17

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Main Base

Clamp Assembly

Disc

Plate Clamp

Magnet Clamp

Clamp Upper

Tray Disc

Base Assembly Sled

Gear Feed

Gear

Middle

Gear Rack

Rubber Rear

Frame Assembly

Up/Down

Belt Loading

Gear Pulley

Gear Loading

Guide Up/Down

PWB Assembly

Loading

Base Main

4 Screws,

1 Connector

1 Locking Tabs

1 Screw

1 Locking Tab

1 Hook

2Screw

2 Locking Tabs

4-1

4-2

4-3

4-4

Bottom

Procedure

Parts Fixing Type

Figure

Disass

embly

Note

When reassembling, perform the procedure in reverse order.

The “Bottom” on Disassembly column of above Table indicates the part should be disassembled at the Bottom side.

• Top View (Without Tray)

• Bottom View

• Top View (With Tray)

DECK MECHANISM PARTS LOCATION

7

DVF-3080-S/8100

1.Main Base (Fig. 4-1)

1-1. Clamp Assembly Disc

1) Place the Clamp Assembly Disc as Fig. (A)

2) Lift up the Clamp Assembly Disc in direction of arrow(A).

3) Separate the Clamp Assembly Disc from the Holder Clamp.

1-1-1. Plate Clamp

1) Turn the Plate Clamp to counterclockwise direction and then lift up the Plate Clamp.

1-1-2. Magnet Clamp 1-1-3. Clamp Upper

2. Tray Disc (Fig. 4-2)

1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the Lever(B) of the Gear Emergency and pull the Lever(B) in direction of arrow so that the Tray Disc is ejected about 15~20mm.

2) Pull the Tray Disc until it is separated from the Base Main completely.

Fig. 4-1 Fig. 4-2

DECK MECHANISM DISASSEMBLY

8

DVF-3080-S/8100

3.Base Assembly Sled (Fig. 4-3)

1) Release 4 Screw(S2).

2) Disconnect the FFC Connector(C1)

3-1. Gear Feed 3-2. Gear Middle

3-3. Gear Rack

1) Release the Scerw(S3)

4. Rubber Rear (Fig. 4-3)

Fig. 4-3

DECK MECHANISM DISASSEMBLY

9

DVF-3080-S/8100

5. Frame Assembly Up/Down (Fig. 4-4)

Put the Base Main face down(Bottom Side)

1) Release the screw(S4)

2) Unlock the Locking Tab(L3) in direction of arrow and then lift up the Frame Assembly Up/Down to separate it from the Base Main.

• When reassembling move the Guide Up/Down in direction of arrow(C) until it is positioned as Fig.(C).

• When reassembling insert (A) portion of the Frame Assembly Up/Down in the (B) portion of the Guide Up/Down as Fig.(B)

6. Belt Loading(Fig. 4-4)

Put the Base Main on original position(Top Side)

7. Gear pulley (Fig. 4-4)

1) Unlock the Locking Tab(L4) in direction of arrow(B) and

then separate the Gear Pulley from the Base Main.

8. Gear Loading (Fig. 4-4)

9. Guide Up/Down (Fig. 4-4)

1) Move the Guide Up/Down in direction of arrow(A) as Fig.(A)

2) Push the Locking Tab(L5) down and then lift up the Guide Up/Down to separate it from the Base Main.

When reassembling place the Guide Up/Down as Fig.(C) and move it in direction arrow(B) until it is locked by the Locking Tab(L5). And confirm the Guide Up/Down as Fig.(A)

10. PWB Assembly Loading (Fig. 4-4)

Put the Base Main face down(Bottom Side)

1) Release 1 Screws(S5)

2) Unlock the Loading Motor (C2) from the Hook (H1) on the Base Main.

3) Unlock 2 Locking Tabs(L6) and separate the PWB Assembly Loading from the Base Main.

11. Base Main(Fig. 4-4)

Note

Fig. 4-4

DECK MECHANISM DISASSEMBLY

10

2. System operation flow

Power on

1.initializes SERVO, DSP and RISC registers

2.write RISC code to SDRAM

3.Reset RISC

Show LOGO

SLED at Inner Side?

SLED Moves to Inner Position

Tray Closed?

Tray Close to closed position

1.Judge whether have disc and disc type

2.Jump to related disc reading procedure

Received

Open/close key?

1.Execute Pressed Key and IR Key

2.System operation on routine loop

1.Stop playback and open tray

2.Display tray open message and LOGO

Receive

close key?

no

yes

no

yes

no

yes

no yes

No 5V_A

No 5.2VA

Is 5.2VA section working?

Is 5.2V present at emitter of Q107?

Replace Q107.

Is there a DC voltage At (+) terminal of BD101?

Is there a DC voltage at R101?

Replace IC101.

note: This Trobleshooting has various information.

Check F101

1. Power check flow

No VF+

Is 5.2VA section working?

Replace D102.

Check F102

NO

YES

Replace R101.

YES

Replace BD101.

YES

A. B.

NO

ELECTRICAL TROUBLESHOOTING GUIDE

DVF-3080-S/8100

11