TEAC DV-3100-VK Service manual

MODEL

SERVICE MANUAL DV-3100VK

CAUTION : Before servicing this chassis, read the "PRODUCT SAFETY SERVICE FOR VIDEO PRODUCTS" section on page 2 of this manual.

	DV-3100 DVD Player	OPEN/CLOSE	STOP	PLAY	PAUSE/STEP
		PREVIOUS	NEXT
STANDBY/ON
POWER
				SEARCH
MIC LEVEL	ECHO

DVD and CD MIC 1	MIC 2	VIDEO CD
	Digital Karaoke	SENSOR
		REMOTE
MIN MAX	MIN MAX

CD-R/CD-RW COMPATIBLE

PLAYER

SPECIFICATIONS

DVD VIDEO PLAYER
Signal system	PAL/AUTO/NTSC
Laser	Wavelength 650nm
Frequency response	20Hz to 20kHz
Signal/Noise ratio	85dB
Audio distortion+noise	-80dB(1kHz)
Channel separation	85dB(1kHz)
Dynamic range	85dB(1kHz)
OUTPUTS

CONTENTS

SERVICE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . 1 LOCATION OF CONTROLS . . . . . . . . . . . . . . . . . . . . 2-4 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 5 ELECTRICAL TROUBLE SHOOTING GUIDE . .. . . . . . 6-16 PRINTED CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-22 EXPLODED VIEW/PARTS LIST(CABINET) . . . . .. . . . . . 23 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . .. . . 24-25

Video outputs	1.0V(p-p), 75ohm, negative sync.
S-video outputs	(Y)1.0V(p-p), (C)0.286V(p-p)
	75ohm, negative sync.
Audio outputs (digital audio)	0.5V(p-p), 75ohm
Audio outputs (analog audio)	2.0Vrams(1KHz,0.8dB), 10Kohm
Component video out	Y:700mv ;CB:535.5mv ;CR:535,5mv
GENERAL
Power supply	AC220V, 50Hz
Power consumption	20W
Dimensions	435 x 95 x 280 (mm)
Weight	Around 4kgs

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

CAUTION: DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY AND N E V E R P E R F O R M C U S T O M I Z E D I N S T A L L AT I O N S W I T H O U T MANUFACTURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING PROPERTY DAMAGE OR USER INJURY.

SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE USER.

WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTECTION FROM A.C. LINE SHOCK.

SAFETY CHECKS

AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRECTED, A CHECK SHOULD BE MADE OF THE FOLLOWING.

SUBJECT: FIRE & SHOCK HAZARD

1.BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAY AS TO AVOID POSSIBILITY OF ADJACENT COMPONENT SHORTS. THIS IS ESPECIALLY IMPORTANT ON THOSE MODULES WITCH ARE TRANSPORTED TO AND FROM THE REPAIR SHOP.

2.NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES SUCH AS INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN RELIEFS, POWER SUPPLY CORDS, AND OTHER HARDWARE HAVE BEEN REINSTALLED PER ORIGINAL DESIGN. BE SURE THAT THE SAFETY PURPOSE OF THE POLARIZED LINE PLUG HAS NOT BEEN DEFEATED.

3.SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE COLD SOLDER JOINTS, SOLDER SPLASHES OR SHARP SOLDER POINTS. BE CERTAIN TO REMOVE ALL LOOSE FOREIGN PARTICLES.

4.CHECK FOR PHYSICAL EVIDENCE DF DAMAGE OR DETERIORATION TO PARTS AND COMPONENTS, FOR FRAYED LEADS AND DAMAGED INSULATION (INCLUDING A.C. CORD), AND REPLACE IF NECESSARY FOLLOW ORIGINAL LAYOUT, LEAD LENGTH AND DRESS.

5.NO LEAD OR COMPONENT SHOULD TOUCH A RECEIVING TUBE OR A RESISTOR RATED AT 1 WATT OR MORE. LEAD TENSION AROUND PROTRUDING METAL SURFACES MUST BE AVOIDED.

6.ALL CRITICAL COMPONENTS SUCH AS FUSES. FLAMEPROOF RESISTORS, CAPACITORS, ETC. MUST BE REPLACED WITH EXACT FACTORY TYPES, DO NOT USE REPLACEMENT COMPONENTS OTHER THAN THOSE SPECIFIED OR MAKE UNRECOMMENDED CIRCUIT MODIFICATIONS.

7.AFTER RE-ASSEMBLY OF THE SET, ALWAYS PERFORM AN A.C. LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABINET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HANDLE AND SCREWS) TO BE SURE THE SET IS SAFE TO OPERATE WITHOUT DANGER OF ELECTRICAL SHOCK. DO NOT USE A LINE ISOLATION TRANSFORMER DURING THIS TEST, MAKE SURE TO USE AN A.C. VOLTMETER. HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, IN THE FOLLOWING MANNER; CONNECT A 1500 OHMS 10 WATT RESISTOR, PARALLELED BY A.15 MFD. 150V A.C. TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CONDUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME. MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500 OHM RESISTOR AND 15 MFD CAPACITOR. REVERSE THE A.C. PLUG AND REPEAT A.C. ANY VOLTAGE MEASUREMENTS FOR EACH EXPOSED METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 75 VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C. ANY VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED IMMEDIATELY.

GOOD EARTH GROUND	PLACE THIS PROBE
SUCH AS THE WATER	ON EACH EXPOSED
PIPE, CONDUIT, ETC.	METAL PART

SUBJECT GRAPHIC SYMBOLS

THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED "DANGEROUS VOLTAGE" THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.

SUBJECT: X-RADIATION

1.BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENTIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PICTURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-RYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERATION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIRCUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIRABLE LEVELS.

2.ONLY FACTORY SPECIFIED C.R.T ANODE CONNECTORS MUST BE USED. DEGAUSSING SHIELDS ALSO SERVE AS AN X-RAY SHIELD IN COLOR SETS, ALWAYS RE-INSTALL THEM.

3.IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRATION OF THE METER SHOULD BE CHECKED PERIODICALLY AGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE AT YOUR DISTRIBUTOR.

4.WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY, THERE IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY TIME A COLOR CHASSIS IS SERVICED, THE BRIGHTNESS SHOULD BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING CORRECTLY. WE SUGGEST THAT YOU AND YOUR SERVICE ORGANIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGULATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCEDURE AND THAT THE HIGH VOLTAGE READING BE RECORDED ON EACH CUSTOMER'S INVOICE.

5.WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN A PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE AVOID BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND THE HIGH VOLTAGE SUPPLY DO NOT OPERATE THE PRODUCT LONGER THAN IT IS NECESSARY TO LOCATE THE CAUSE OF EXCESSIVE VOLTAGE.

6.REFER TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS(WHERE USED).

SUBJECT: IMPLOSION

1.ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTEGRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE TAKEN TO AVOID DAMAGE DURING INSTALLATION, AVOID SCRATCHING THE TUBE. IF SCRATCHED REPLACE IT.

2.USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES.

SUBJECT: TIPS ON PROPER INSTALLATION

1.NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS. CUBBYHOLE OR CLOSELY FITTING SHELF SPACE, OVER OR CLOSE TO HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW.

2.AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIATORS WHERE STEAM LEAKAGE IS A FACTOR, ETC.

3.AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DECORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT OBSTRUCT VENTILATION.

4.WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL MOUNTING KIT, MUST FOLLOW THE FACTORY APPROVED MOUNTING INSTRUCTIONS. A PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW ACROSS THE BOTTOM. BOLTS OR SCREWS USED FOR FASTENERS MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED INSTALLATIONS.

5.CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS PROPERLY SECURED.

6.A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS MOUNTING TO THE CART CAUTION THE CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS ACROSS THRESHOLDS OR DEEP PILE CARPETS.

7.CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES, INC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION RECEIVER OR GENERICALLY APPROVED FOR USE WITH TV'S OF THE SAME OR LARGER SCREEN SIZE.

8.CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS. EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SINGLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND FAMILY.

1

PREPARATIONS BEFORE OPERATION(Con't)

FRONT PANEL

1

2

3

4

8

7

6

5

	DV-3100 DVD Player	OPEN/CLOSE	STOP	PLAY	PAUSE/STEP
		PREVIOUS	NEXT
STANDBY/ON
POWER
MIC LEVEL	ECHO			SEARCH
	Digital Karaoke	SENSOR
		REMOTE
MIN MAX	MIN MAX
MIC 1	MIC 2

				VIDEO CD
				CD-R/CD-RW COMPATIBLE
13 12	14 15	10	11	9

1.	POWER	8.	PREVIOUS/NEXT
2.	STANDBY INDICATOR	9.	SEARCH
3.	DISC TRAY	10. REMOTE SENSOR
4.	OPEN/CLOSE	11. DISPLAY
5.	PAUSE/STEP	12. MIC LEVEL
6.	PLAY	13.	MIC 1
7.	STOP	14. MIC 2
		15. ECHO

2

PREPARATIONS BEFORE OPERATION(Con't)

DISPLAY

	Pause indicator Title indicator		Chapter/track	Program indicator		Dolby Digital	Track calender
			indicator			indicator
VCD and CD		PBC					Repeat play
indicator	Play indicator	indicator Remain indicator Lock indicator			Angel indicator		indicator

	TITLE	CHP/TRK	PROGRAM		REPEAT		1	2	3	4
	PBC	REMAIN		DIGITAL	ONE
VCD							5 6		7	8
			MIN	SEC	ALL
					A	B	9 10		11	12
					1/2 2/3 D1
							13 14 15 16
					RESUME
			Minute	Second indicator		Disc recording
			indicator			format
DVD indicator	Title/chapter/track		Hour	Resume indicator
	indicator		indicator

Push DIMMER , the brightness of the display is reduced by half, push it once more, the display becomes dark. Push the button again, the display resumes brightness.

REAR PANEL

1

2

3

11

						DIGITAL AUDIO OUT			COMPONENT
									VIDEO OUT
	AUDIO OUT		VIDEO	OUT						Y
1			1			COAXIAL				CB
							OPTICAL
2										CR
	R	L	2			S-VIDEO

	4	5	6	7	8	9	10
1.	AUDIO OUT 1 R						7.	S-VIDEO OUT
2.	AUDIO OUT 1 L						8.	DIGITAL OUT (OPTICAL)
3.	VIDEO OUT 1						9.	DIGITAL OUT (COAXIAL)
4.	AUDIO OUT 2 R						10. COMPONENT
5.	AUDIO OUT 2 L							(Color Difference Output)
6.	VIDEO OUT 2						11. POWER SUPPLY CORD

3

PREPARATIONS BEFORE OPERATION(Con't)

NAMES AND LAYOUT OF REMOTE CONTROLS

1

2

3

4

5

6

7

8

9

10

22

12

15

13

31

OSD	DIMMER	ANGLE	POWER
			STANDBY
1	2	3	PLAY MODE
4	5	6	DIGEST
7	8	9	TIME SEARCH
10/0	+10	REMAIN	LAST MEMORY
SEARCH		PAUSE	ZOOM
		STEP
SETUP	TITLE	MENU	OPEN/
			CLOSE
	PLAY
	PREV		NEXT
	STOP
			RETURN
SLOW		A-B	REPEAT
	SUBTITLE	MONO/	TV
		STEREO	SYSTEM
- OUTPUT +			KEY
		b CONTROL #

32

29

28

27

26

25

24

23

21

30

20

19

18

17

11

16

14

1.OSD

2.DIMMER

3.NUMBER BUTTONS

4.SEARCH

5.SET UP

6.TITLE

7.PLAY

8.PREVIOUS/NEXT

9.STOP

10.DIRECTIONS

11.TV SYSTEM

12. LANGUAGE

13.OUTPUT

14.KEY CONTROL

15.SUBTITLE

16.MONO/STEREO

17.A-B REPEAT

18.REPEAT

19.RETURN

20.MENU

21.PAUSE/STEP

22.SLOW

23.ZOOM

24.REMAIN

25.LAST MEMORY

26.TIME SEARCH

27.DIGEST

28.PLAY MODE

29.ANGLE

30.OPEN/CLOSE

31.REMOTE TRANSMITTER

32.POWER

4

OVERALL BLOCK DIAGRAM

TO OUTPUT BOARD

CHROMA RED/AGND LUMA BLUE/AGND CVBS2 VGND G/CVBS1 VGND 12V GND SPDIF 5V ZERO AGD CEN

AGD R-S AGND WOOF AGD L-S AGD L AGD R

XS109

VIDEO	ENCODER	CS4955/BT865

VCC

F

2

B

SDRAM*

LD

GND

A

E

C

MD

VR

16M

VR

VC

NC

MD

GND

27MHz

27MHz

LD

NC

GND

VCC

NC

NC

D

C

VC

HC04

B

A

33.868MHz

RF

NC

NC

T-

T+

F-

F+

XS100 TO PICK UP MECHANISM CHASSIS

RF AMP

D1890

SERVO	& TRAY	DRIVER	BA5954	& BA6208

AUDIO DAC		PCM1723/PCM1720
AUDIO DATA
MPEG-2	DECODER	VS2811E/VS3811	/UPD3801-2811
ATAPI INTERFACE
SERVO &	DVD	PROCESSOR	D1870

BUS

CONTROL

XS103

SPSP+ LIM GND SLED+ SLED-

XS102

GND CLOSE GND OPEN UNLOD LOAD

TO PICK UP MECHANISM CHASSIS

the data	signal
path of	control
the	the

4M ROM	29F040

EEPROM		24C01	TO POWER SUPPLY BOARD
			XS106
			5V.3
		DRAM
			5V.3
			24V
			GND
			GND
		4M	GND
			6V.3
			Vcc
			8V
			12V
			5V
			POWER
			12V

CPU	D1850

RMC FDATA FCS FCLK GND 3.5V 3.5V 24V VCC 12V POWER NC NC

BOARD

XS107

TO KEY

5

Electrical Trouble Shooting Guide

Connection of the unit is correct.
	Setting of the unit is correct
			No
	Is power normal?				Refer to power guide.
	Yes
			No
	Is fluoresce display correct?				Refer to display guide.
	Yes
			No
	Is open/close normal?				Refer to open/close guide.
	Yes
			No
	Can disc be read?				Refer to read disc guide.
	Yes
	Is video normal?		No
					Refer to video guide.

Yes

No

Is audio normal?

Refer to audio guide.

Yes

Normal operation.

6

A Power Circuit abnormal

START

No

Is C328 AC 220V?

Yes

No

Is C301 DC 310V?

Yes

No

Are 2,3 pin of N301 resistance high impedance?

Yes
Are transformer secondary	No
6V, 15V output?

Yes

No

Is XP303 normal?

Yes

Normal

F301 is open. XP301 is open. XP302 is open.

Power cord isn't inserted firmly or power cord is open.

Check commute circuit.

Check L301 and L302.

Replace N301.

Check if transformer is damaged. Check secondary commute circuit. Check secondary feedback circuit.

Check if secondary short. Check V304.

Check regulated circuit. Check N302 and peripheral components.

7