Philips TDVD1 Service Manual

SERVICE MANUAL

14” DVD COMBI TV

CONTENTS

1. TECHNICAL SPECIFICATIONS, CONNECTIONS AND CHASSIS OVERVIEW

1.1. Technical Specifications

1.1.1 Reception

Tuning System : PLL

Color Systems : PAL SECAM NTSC

Sound Systems : B/G D/K L/L’

A/V Connections : SCART AND FRONT AV

Channel Selections : AIR : E2-E12, E21-E69

CABLE : S01-S41

IF Frequency : B/G, D/K, L : 38.9 MHZ

L’ : 33.4 I : 39.5MHZ

Aerial Input : 75 OHM

1.1.2 Miscellaneous

Audio Output (RMS) : 2 x 2.5 W Mains Voltage : 220-240 V (± 10 %) Mains Frequency : 50/60 Hz (± 5 %) Ambient Temperature : Maximum Humidity : Power Consumption : 50 W Standby Power Cosumption : 4 W

1.2 Connections

1.2.1 Front (or Side) Connections and Front (or Top) Control

1.2.2 EuroScart

Ht1

1. Audio Output 1. right cahnnel 0.5 VRMS/<1k0

2. Audio Input 1. right channel 0.5 VRMS (connected to No.6)

3. Audio Output 2. left channel 0.5 VRMS (connected to No.1)

4. GND (audio)

5. GND

6. Audio Input 2. left channel 0.5 VRMS/>10k0

7. RGB Input, blue (B)

8. Switch signal video (status)

9. GND

10. Reserved for clock signals (not connected)

11. RGB input, green (G)

12. Reserved for remote control

13. GND

14. GND switch signal RGB

15. RGB input, red (R)

16. Switch Signal RGB

17. GND (video)

18. GND19- video output 1 Vpp/75 ohm

19. Video Output

20. Video input 1 Vpp/75 ohm

21. Shield

20 18 16 14 12 10 8 6 4 2

21 19 17 15 13 11 9 7 5 3 1

CHASSIS OVERVIEW

2. SAFETY INSTRUCTIONS AND WARNINGS

SAFETY INSTRUCTIONS FOR SERVICE REPAIRS

1. Use only the original spare parts with the same specifications for replacement.

2. Only the original fuse value should be used.

3. Main leads and connecting leads should be checked for external damage before connection. Insulation must be checked.

4. Parts contributing to the safety of the product must not be damaged nor obviously unsuitable. This is valid especially for insulators and insulating parts.

5. Thermally loaded solder pads are to be sucked off and re-soldered.

6. Ensure that the ventilation slots are not obstructed.

7. Potentials as high as 25 KV are present when this receiver is operating. Operation of the receiver outside the cabinet or with back cover removed involve a shock hazard from the receiver.

8. Servicing should not be attempted by anyone who is not throughly familiar with precautions necessary when working on high voltage equipment. Perfectly discharge the high potential of the picture tube before handling it. The picture tube is highly evacuated and if broken. Glass fragments will be violently expelled. Always discharge the picture tube anode to the receiver chassis to keep of the shock hazard before removing the anode cap.

9. Keep wire away from the high voltag or high temperature components.

10. When replacing a wattage resistor, keep the resistor 10mm away from the circuit board.

11. Fast heating up (e.g. by bringing the Combi from a cold place into warm and humid room) can result in moisture condensing on the pickup lens of the DVD Module, thus influencing the playability for a certain time. Before checking the performance, the DVD Loader should be stabilized for at least 4 hours.

12. Never try to repair DVD module when it is ON. The laser beam is highly dangerous and it may cause permanent damages.

HANDLING THE MOS CHIP COMPONENTS

MOS circuit requires special attention with regard to static charges. Static charges may occur with any highly insulated plastics and can be transferred to persons wearing clothes and shoes made of synthetic materials. Protective circuits on the inputs and outputs of MOS circuits give protection to a limited extend only due to time of reaction.

Please observe the following instructions to protect the components against ESD.

1. Keep MOS components in conductive package until they are used. Most components must never be stored in styropor materials or plastic magazines.

2. Personnel must not touch the MOS components to avoid electrostatic discharging.

3. Hold the component by the body touching the terminals.

4. Use only grounded instruments for testing and processing purposes.

5. Remove or connect MOS Ics when operating voltage is disconnected.

6. Personnel in charge must make sure that they are connected with the same potential as the mass of the set by a wrsitband with resistance.

X-RAY RADIATION PRECAUTION

1. Excessive high voltage can produce potentially hazardous X-RAY radiation. To avoid suxh hazard, the high voltage must not be above the specified limit. The nominal value of the high voltage of this receiver is 25KV at zero beam current (minimum brightness) under 220 V AC power source. The high voltage must not under any circumstance, exceed 30KV. It is recommended the reading of the high voltage to be recorded as a part of the service record. It is important to use an accurate and reliable high voltage meter.

2. The primary source of X-RAY radiation in thi TV receiver is the picture tube. For continued X-RAY radiation protection, the replacement tube must be exactly the same type tube as specified in the part list.

BLOCK DIAGRAM

A1 TUNER

10

A3 SCART

13

4 3 2

AV_STATUS

A2-1

A11

KEYBOARD

KEYB A7-1

IF1 A2-5

11

IF2 A2-4

SDA A4-1/A2-3

5

SCL A4-2/A2-2

4

AGC A2-1

1

SC_I A2-2

FBEXT A2-5

11

21

17

8 7 6

CLI A7-1 B A2-8

18

12

10

G A2-7

A4 EEPROM

SDA

A7-1/A2-1/A1-1

SCL

A1-2/A2-2/A7-2

AC IN

A2 VIDEO PEOCESSOR

AUDOUT A8-1

L/L’ A7-8

IF1 A2-5/A1-5

IF2 A1-4

AGC A1-1

AV_STATUS A3-1

SC_IN A3-2

CVBS A2-3

CVBS A3-3

SS01

9

CVBSEXT A3-4

B A3-8

G A3-7

5

15

19

16

20

14

SCART1

R A2-6

R A3-6

FBEXT A3-5

IC02

24C

08

5

6

1

2

6

7

8

11

14

13

20

25

26

27

28

STV2246/47/48

ICV1

55

SDA A7-1/A4-1/A1-3

52

SCL A7-2/A1-2/A4-2

51

HEATER A6-1/A7-7

49

HOUT A6-2

48

VERT A9-1

47

BCL A6-3

46

CVBSOUT A7-6

44

V_AMP A9-2

42

FB_OSD A7-10

37

R_OSD A7-3

36

G_OSD A7-4

35

B_OSD A7-5

34

A7 µ-CONTROLLER A8 AUDIO AMPLIFIER

IA01 TDA7057

CLI A3-1

MUTE_DVD A8-10/A8-1/A10-1

L/L’ A2-8

TV/DVD A8-2

B_OSD A2-5

G_OSD A2-4

R_OSD A2-3

FB_OSD A2-10/A7-5

SDA A2-1/A4-1/A1-1

SCL A2-2/A4-2/A1-2

8

11

12

13

15

16

17

18

19

25

ST92195/92185

IC01

56

KEYB A11-1

42

43

VOL A8-1

V_OSD A9-1

41

40

HEATER A2-7/A6-1

33

34

DVD SB

CVBSOUT

A2-6

FB_OSD

A7-5/A2-10

VOL A7-1

AUDOUT A2-1

MUTE_DVD A8-10/A10-1/A7-1

L_DVD A10-2

A9 VERTICAL

VERT A2-1

18

ID41 TDA1771

2

43

3

IA03

2

MN405

1

3B

12

6

1

2

I060

7

LM358

V_AMP A2-2V_OSD A7-1

R_DVD A10-3

2

3

T 46 DA168

IP01

WP02

14

11

110 V

16 V

5 VD

5 VA

12V

8 V

A6 HORIZONTAL A5 POWER SUPPLY

BCL A2-3

HOUT A2-2

HEATER

A10 AV INTERFACE CONN.

FBT

1

8

4

9

3

24 V

12 V

BS _D

A8

SS08

1816151412

M

UT

UT A8

E_

D V

D

O

A7

-

1/

-4

A8

-

R_

L_

D

V

D

A8

-3

-2

C V

V D

-5

SUPPLY VOLTAGE DIAGRAM

A6

110V

16V

A9

1

2

TDA1

771

FBT

9

8

7

4

1

RD15 RD12

8

4

3

24V

12V

24V

RD45

RD44 RD56

RD28 RD40

8V

12V

A3

19

8V TO SS05/4

A10

SS08

5V

8V

RV06

DV10

RV57

12

TV05

TV01

RV03

SS05

14

RV54

8V

A1

5V

A4

5V

33V

LT01

RT03

RT01

9

7

3

1

TUNER

EEPROM

C011

A2

8V

LV07

SA02

1

2

12

17

25

26

27

28

16

11

56

55

54

46

45

43

41

40

39

34

33

31

VIDEO PROC.

STV2246/47/48

+12V TO RA10

RA11

RS58

D005

D004

R052

D002

D001

53

45

8V

R002

R008

R057

R080

R081

R028 RA09

T001

5VA

5V

LV01

8V

5V

12VDVD

5VDVD

5V

5VA

5V

LV01

LV03

DV23

DV22

DV21

8V

DV20

A8

IA03 MN4

053

A7

5V

1 8

5VA

5VD

T003

R011

R010

R007

R032

R012

R013

2

3

12

13

14

19

20

21

25

26

ST92195/92185

A1

TUNER

I2C BUS INTERCONNECTION DIAGRAM

A2

A4

A7

SDA

5

SDA

R013

SDA

SCL

4

SCL

RV33

RV34

SCL

R048

R049

SCL

51

52

6 5

VIDEO

PROC.

EEPROM

+5V

R012

SDA

SCL

20 19

u-CONTROLLER

SERVICE MENU AND BASIC ADJUSTMENTS

SERVICE MODE IS ACTIVED BY PRESSING THE DIGIT “1923” IN THE “FEATURES” MENU

a. SERVICE PARAMETERS

1.1 OPTION BYTES

OPTION 1: MODEL CONFIGURATION

b0 1: B/G Available 0: not available b1 1: D/K Available 0: not available b2 1: I Available 0: not available b3 1: L Available 0: not available

b4-5 TTX National Character Set Group 00 : Set 1 01 : Set2 10 : Set3 (Turkish) 11 : Set3 (Turkish)

b6-7 Main Tuner 00 : Samsung 01 : Temic 10 : Philips UV1316 11 : Thomson/Orega

OPTION 2 : FEATURE CONFIGURATION

b0 1: Total Peak Lim. Avl. 0: Not Available b1 1: QSS Application 0: Intercarrier Application b2 1: Coring Available 0: Not Available b3 1: Black Strecth Available 0: Not Available b4 1: Blue Screen Enable 0: Disable b5 1: OSD Contrast Control Enable 0: Disable

b6-b7 00: APR OFF 01: APR 50 IRE 10: APR 75 IRE 11: APR 100 IRE

OPTION 3 : VIDEO/AUDIO FEATURE CONFIGURATION

b0 1: RGB Peak Lim. Available 0: not available/for2248E ver. b1 1: SVHS mode available 0: not available b2 1: DVD available 0: not available b3 1: Tray Locked 0: Tray usage enabled b4 1: One Xtal Appl. (4.43 Mhz) 0: 2 Xtal appl (for NTSC playback)

b5 1: AVC Auto Vol Correction 0: not available

b6 1: 2248E 0: 2248C

b7 1: Standby after power on 0: No Standby after power on

reserved bits must be set to 0

You will need following equipments to carry out the adjustment procedures;

a- PLL Pattern generator for Secam L' b- PLL Pattern generator PAL BG c- Patern generator for white pattern d- Color Analyzer (CA100)

1.2 GEOMETRY ADJUSTMENT

a. V.SIZE 4/3 50H b. V.SIZE 16/9 50H c. V.SIZE 4/3 60H d. V.SIZE 16/9 60H e. V.POS f. H.POS

• Enter service menu and select the GEOMETRY settings

• Standart geometrical adjustments carried out by VSIZE, VPOS AND HPOS settings.

VSIZE 16/9 50h setting have to be carried out until 3 cm distance between upper and lower parts of the screen.

• Same adjustments for 60H for 16/9 and 4/3.

• Press “menu” button to leave service menu

• Same adjustments for 60Hz for 16/9 and 4/3.

• Press "Menu" button to leave service menu.

1.3 G2 ADJUST

> : <

increase normal decrease

 Enter the “G2” menu in the service mode  Turn the G2 potentiometer on FBT until you reach the : sign  < indicator means to decrease

 > indicator means to increase

1.4 VIDEO

1 RED

2 GREEN 3 BLUE 4 RED COFF

5 GREEN COFF

• Apply Dark gray pattern (at 10 IRE)

• Contrast 70%, brightness middle, color saturation middle.

• By changing the RED C.OFF AND GREEN C.OFF Adjust to obtain the

necessary values for x and y.

• Apply white pattern (at 100 IRE)

• Set the contrast to 70%, brightness and color saturation to middle.

• Place the color analyzer.

• (R,G,B), it is possible to modify the peak white.

• Adjust to obtain the necessary values for x and y.

Remark: It may be necessary after low light alignment to check and to re- align the high light and to repeat several times the procedure to obtain good alignment for both low and high light.

1.5 TUNER / IF

1. AGC

2. PIF COARSE

3. PIF FINE

4. PIF COARSE L’

5. PIF FINE L

PIF adjustment for BG/DK/L systems:

• 38.9 MHz PAL BG signal applied Tuner via tuner output (IF output).

• Leave the channel settings menu and enter service menu. Enter "TUNER IF"

menu in the service mode. Choose the "PIF COARSE" and “PIF FINE” item and adjust the setting until the " : " indicator (displayed as " > : < ") turns in red color by pressing < and > on remote control.

• Press "Menu" button to leave service menu.

PIF adjustment for L' system :

• 33.9 MHz SECAM L' signal applied Tuner via tuner output.

• Leave the channel settings menu and enter service menu. Enter "TUNER IF"

menu in the service mode. Choose the "PIF COARSE L’" and “PIF FINE L’ “ item and adjust the setting until the " : " indicator (displayed as " > : < ") turns in red color by pressing < and > on remote control.

• Press "Menu" button to leave service menu.

1.6 HOTEL MODE

Installation and Child Lock Menus are omitted in Hotel Mode. You can not search any channel when the Hotel Mode is activated. Volume level can not be increased higher then certain level in Hotel Mode. The volume limiting level is a pre-defined value in service menu.

• Switch the TV in AV mode by pressing "AV" button on remote control unit.

• Adjust the VAP2 potentiometer until 115Vdc measured on cathode pin of DP08

3. SYSTEM VOLTAGE ADJUSTMENT

(Minimum beam current condition)

diode.

DVD MODULE

SAFETY AND HANDLING PRECAUTIONS

1. DO NOT use and store the Loader in dusty, high temperature or high humidty environments.

2. To avoid damage to the Loader by electrostatic dischargers, measuring equipment and operators should be grounded during handling. The user of this unit takes all necessary precautions to avoid ESD (Electro-Static Discharge) failures during handling and assembly of this unit into the end product.

3. Contamination of the PCB might influence the performance. Avoid fingerprints and stains on the PCB and handle the Loader in a clean environment.

4. The mechanism of the Loader has been adjusted carefully during manufacturing. High shocks on this unit may damage and should be avoided.

5. Fast heating (e.g. by bringing the Loader unit from a cold place into a warm and humid room) can result in moisture condensing on the pickup lens, thus influencing the playability for a certain time. Before checking the performance the Loader unit should be stabilized for at least 4 hours.

6. DO NOT disamble the loader to avoid ESD failures and to prevent from contamination.

AC SOURCE SUPPLY:

The Voltage Fluctuation : 110/220 V ± 10% tolerance

The Impulse Noise : 110/220 V ± 10% tolerance

SPECIFICATION

Performance

Applicable Disc Format:

DVD-5, DVD-9, DVD-10, DVD-18, CVD, SVCD, DVCD, CD-R, CD-RW, VCD CD-Audio

Rotational Speed

DVD: 2X(CLV) Approx. 1,100 rpm to 2,800 rpm. CD: 4X(CLV) Approx. 792rpm to 2139 rpm

Data Transfer Rate

•Sustained Data Transfer Rate DVD: Approx. 2,760 KB/sec

VCD: Approx. Max 688 KB/sec

•Burst (ATAPI): 16.7 Mbytes/sec (PIO Mode 4)

Average Access Time

Random Access DVD : 250 ms Typical

CD : 250 ms Typical

Data Buffer Capacity 512 Kbytes

Error Rate

DVD Hard Error Rate: 10E-15 max.

Seek Error Rate : 10E-6 max.

CD Hard Error Rate : 10E-12 max. (Mode 1)

10E-9 max. (Mode 2)

Seek Error Rate : 10E-6 max.

MECHANICAL AND ELECTRICAL

1. CONNECTORS

a. D.C Power Connector

A 4-pin shrouded, keyed male connector is used to be supplies with D.C. Power.

Maker : LG Cable

 

Specification : GIL-G-4P-S3T2(2.5mm pitch)



Matching Housing : GIL-G-4S-S3T2

b. Audio/Video Output And Digital Audio Interface

Connector

A 26-pin 1.0mm Pitch FFC/FPC connector is applied

 Maker: LG Cable  Specification: GF102-26S-TS  Matching FFC/FPC Type : 1.00mm pitch FFC Cable(Top Contact)

2.

AUDIO PERFORMANCE

3. VIDEO PERFORMANCE

4. KEY COMPONENT LIST

5. MECHANICAL DIMENSIONS

BLOCK DIAGRAMS

D5

D1

D5

D4

D3

D2

D1

D2

D3

D4