Philips DVP-3148-K, DVP-3146-X, DVP-3146-K, DVP-3146, DVP-3126-X Service Manual

...

Service

DVD Player

DVP3126(K), DVP3146(K), DVP3148K

DVP3126/94/96/98/51,DVP3126X/94

DVP3126K/56/93/96/98/61/51

DVP3146/94,DVP3146X/94

DVP3146K/93/96/98

DVP3148K/51

Service Manual

TABLE OF CONTENTS

. Technical Specifications……………………………………...................1-2

. Safety Instruction, Warning & Notes….……………………….....….....1-3

. Mechanical and Dismantling Instructions………….............................2-1

. Region Code, Software Version& Upgrades……………....................

. Trouble Shooting Chart………………………………………….………

. Wiring Diagram………………………………………..…....….…..….….5-1

. Electrical Diagrams and Print-layouts..….……………..…….......….…6-1

. Set Mechanical Exploded View & Electrical Part list.……….....….….7-1

. Electrical Parts List…………………………………………....….....…...8-1

. Revision List………………………………………………….…..…........9-1

transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise

without the prior permission of Philips.

PublishedbyTCL-ET 0735 ServiceAudio PrintedinTheNetherlandsSubjecttomodification

Version 1.2

Chapter

.3-1

.4-1

CLASS 1

LASER PRODUCT

3139 785 32882

PHILIPS

Technical Specifications

1-2

TV standard (PAL/50Hz) (NTSC/60Hz)

Number of lines 625 525

Playback Multi standard (PAL/NTSC)

Video performance

Video DAC 12 bit, 108MHz

YPbPr 0.7Vpp ---- 75 ohm

Video output 1Vpp ----- 75 ohm

Video format

Digital Compression MPEG 2 for DVD,SVCD

MPEG 1 for VCD

Div;® (For DVP3146/94,DVP3146K/98)

DVD 50Hz 60Hz

Horiz resolution 720 pixels 720 pixels

Vertical resolution 576lines 480 lines

VCD 50Hz 60Hz

Horiz. resolution 352 pixels 352 pixels

Vertical resolution 288lines 240 lines

Audio format

Digital MPEG/AC-3/ Compressed

PCM Digital

16, 20, 24bits

fs, 44.1, 48, 96kHz

MP3(ISO 9660) 96,112,128,256,320kbps

& variable bit rate fs,32,

44.1,48 kHz

Analogue Sound Stereo

Dolby surround compatible downmix from Dolby Digital multi-channel

sound

Audio performance

DA converter 24bits, 192KHz

DVD fs 96kHz 4Hz----44kHz

fs 48kHz 4Hz----22kHz

SVCD fs 48kHz 4Hz----22kHz

fs 44.1kHz 4Hz----20kHz

CD/ VCD fs 44.1kHz 4Hz----20kHz

Signal-Noise (1kHz) >90dB

Dynamic Range (1kHz) >80dB

Cross talk (1kHz) >70dB

Distortion/Noise (1kHz) >65dB

MPEG MP3 MPEG Audio L3

6 Channal analog ouput

Audio Front L/R

Audio Rear L/R Cinch( White/Red)

Audio Center Cinch( Blue)

Audio Subwoofer

Cinch( White/Red)

Cinch(Black)

Connections

YPbPr output Cinch 3x

Video output Cinch( yellow)

Audio output (L+R ) Cinch (white/red)

Digital output 1 coaxial

IEC60958 for CDDA/ LPCM

IEC61937 for MPEG1/2,

Dolby Digital

Cabinet

Dimensions (w X h X d) 360 x 37 x 209 mm /360 x 38 x 209 mm

Weight Approximately 1.35kg

Power consumption

Power supply Rating 110V -240V;

50/60HZ

Power consumption <10W

Power consumption in standby mode <1W

Specifications subject to change without prior notice.

1-3

Safety instruction, Warning & Notes

Safety instruction

1. General safety

Safety regulations require that during a repair:

. Connect the unit to the mains via an isolation transformer.

. Replace safety components indicated by the symbol

only by components identical to the original ones. Any

other component substitution (other than original type)

may increase risk of fire or electrical shock hazard.

Safety regulations require that after a repair, you must

return the unit in its original condition. Pay, in particular,

attention to the following points:

. Route the wires/cables correctly, and fix them with the

mounted cable clamps.

. Check the insulation of the mains lead for external

damage.

. Check the electrical DC resistance between the mains

plug and the secondary side:

1) Unplug the mains cord, and connect a wire between

the two pins of the mains plug.

2) Set the mains switch the “on” position (keep the

mains cord unplug).

3) Measure the resistance value between the mains

plug and the front panel, controls, and chassis

bottom.

4) Repair or correct unit when the resistance

measurement is less than 1M

5) Verify this, before you return the unit to the

customer/user (ref. UL-standard no. 1492).

6) Switch the unit “off”, and remove the wire between

the two pins of the mains plug.

2.Laser safety

This unit employs a laser. Only qualified service personnel

may remove the cover, or attempt to service this device

(due to possible eye injury).

Laser device unit

Type : Semiconductor laser GaAlAs

Wavelength : 650nm (DVD)

: 780nm (VCD/CD)

Output power : 7mW (DVD)

: 10mW (DVD /CD)

Beam divergence: 60 degree

Note: Use of controls or adjustments or performance of

procedure other than those specified herein, may result in

hazardous radiation exposure. Avoid direct exposure to

beam.

Warning

1-4

1.General

. All ICs and many other semiconductors are susceptible to

electrostatic discharges (ESD). Careless handing during

repair can reduce life drastically. Make sure that, during

repair, you are at the same potential as the mass of the

set by a wristband with resistance. Keep components and

tools at this same potential. Available ESD protection

equipment:

1) Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and earth cable)

4822 310 10671.

2) Wristband tester 4822 344 13999.

. Be careful during measurements in the live voltage

section. The primary side of the power supply , including

the heat sink, carries live mains voltage when you

connect the player to the mains (even when the player is

“off”!). It is possible to touch copper tracks and/or

components in this unshielded primary area, when you

service the player. Service personnel must take

precautions to prevent touching this area or components

in this area. A “lighting stroke” and a stripe-marked

printing on the printed wiring board, indicate the primary

side of the power supply.

. Never replace modules, or components, while the unit is

“on”.

2. Laser

. The use of optical instruments with this product, will

increase eye hazard.

. Only qualified service personnel may remove the cover

or attempt to service this device, due to possible eye

injury.

. Repair handing should take place as much as possible

with a disc loaded inside the player.

. Text below is placed inside the unit, on the laser cover

shield:

CAUTION: VISIBLE AND INVISIBLE LASER

RADIATION WHEN OPEN, AVOID EXPOSURE

TO BEAM.

Notes: Manufactured under licence from Dolby

Laboratories. The double-D symbol is trademarks of Dolby

Notes

Lead-Free requirement for service

1-5

INDENTIFICATION:

Regardless of special logo (not always indicated)

One must treat all sets from 1.1.2005 onwards, according next rules.

Important note be treated in this way as long as you avoid mixing solder-alloys (leaded/ lead-free). So best to always use SAC305 and the higher temperatures belong to this.

Due to lead-free technology some rules have to be respected by the workshop during a repair:

x Use only lead-free solder alloy Philips SAC305 with

order code 0622 149 00106. If lead-free solder-paste is

required, please contact the manufacturer of your

solder-equipment. In general use of solder-paste within

workshops should be avoided because paste is not easy

to store and to handle.

x Use only adequate solder tools applicable for lead-free

solder alloy. The solder tool must be able

o To reach at least a solder-temperature of 400°C,

o To stabilize the adjusted temperature at the

o To exchange solder-tips for different applications.

x Adjust your solder tool so that a temperature around

360°C

joint. Heating-time of the solder-joint should not exceed

~ 4 sec. Avoid temperatures above 400°C otherwise

wear-out of tips will rise drastically and flux-fluid will be

destroyed. To avoid wear-out of tips switch off un-used

equipment, or reduce heat.

x Mix of lead-free solder alloy / parts with leaded solder

alloy / parts is possible but PHILIPS recommends

strongly to avoid mixed

solder alloy types (leaded and lead-free). If one cannot

avoid, clean carefully the

solder-joint from old solder alloy and re-solder with new

solder alloy (SAC305).

: In fact also products a little older can also

solder-tip

– 380°C is reached and stabilized at the solder

x Use only original spare-parts listed in the

Service-Manuals. Not listed standard-material

(commodities) has to be purchased at external

companies.

x Special information for BGA-ICs:

- always use the 12nc-recognizable soldering

temperature profile of the specific BGA (for

de-soldering always use highest lead-free

temperature profile, in case of doubt)

- lead free BGA-ICs will be delivered in so-called

‘dry-packaging’ (sealed pack including a silica gel

pack) to protect the IC against moisture. After

opening, dependent of MSL-level seen on

indicator-label in the bag, the BGA-IC possibly

still has to be baked dry. This will be

communicated via AYS-website.

Do not re-use BGAs at all.

x For sets produced before 1.1.2005, containing

leaded soldering-tin and components, all needed

spare-parts will be available till the end of the

service-period. For repair of such sets nothing

changes.

x On our website:

www.atyourservice.ce.Philips.com

You find more information to:

BGA-de-/soldering (+ baking instructions)

Heating-profiles of BGAs and other ICs used in

Philips-sets

You will find this and more technical information

within the “magazine”, chapter “workshop news”.

For additional questions please contact your local

repair-helpdesk.

2-1

Mechanical and Dismantling Instructions

Dismantling Instruction

The following guideline is a general instruction for how to dismantle the player, Detailed operation done according the set unit. Step1: Remove 5 screws around the Top Cover, then remove the Top Cover (Figure 1).

Figure 1

Step2: If it is necessary to dismantle Loader or Front Panel, It should be remove the Front door assembly first. (Figure 2) Note: Make sure to operate gently otherwise the guider would be damaged.

Please kindly note that dismantle

the front door assembly carefully

to avoid damage tray and the front

door assembly.

Figure 2

2-2

Mechanical and Dismantling Instructions

Dismantling Instruction

Step3: If the tray can’t open in normal way, you can make it through the instruction as below (Figure 3).

Note: Make sure to operate gently otherwise the guider would be damaged.

Push the guider until the tray out. Make sure to operate gently to avoid damage happening.

Figure 3

Step4: Dismantling Loader, disconnect the 3 connectors aiming in the below figure, and remove 1 screw around the

Loader. (Figure 4)

CON 1

CON 2

CON 3

Figure 4

2-3

Mechanical and Dismantling Instructions

Dismantling Instruction

Step5: Dismantling Front Panel, disconnect the 1 connector, then release the snaps on the both sides of Front Panel and bottom

cabinet , then gently pull the Panel out from the set. (Figure 5 & 6 & 7)

CON 4

Snap 1

Figure 6

Figure 5

Snap 2

Figure 7

2-4

Mechanical and Dismantling Instructions

Dismantling Instruction

Step6: Dismantling Main Board, first disconnect the 1 connector, then remove 4 screws to remove the Main board. (Figure 8)

CON 5

Figure 8

Step7: Remove the 2 screws on Power Board to dismantle the Power Board. (Figure 9)

Figure 9

Software upgrade

3-1

Preparation to upgrade software

1) Start the CD Burning software and create a new CD

project (Data Disc) with the following setting:

Label: DVP3XXX (No need the label name)

Note: It is required capital letter for the File System

name, and it no need have the File name during

start the CD burning software for Zoran project.

2) Burn the data onto a blank CDR

A. Procedure for software upgrade:

1) Power on the set and insert the prepared Upgrade

CDR.

2) The set will starts reading disc & response with the

following display TV screen:

Firmware Upgrade Erase and program.

Start Cancel

Select Start to start upgrade.

3) Press <OK> button to confirm, then screen will display :

Firmware Upgrade Programming, Please Wait...

Do not Switch the Player Off !

4) The upgraded disc will automatically out when files

coping complete, then take out the disc.

5) About 1 minute later, the tray will automatically close

when upgrading complete.

B. Read out the software versions to confirm upgrading

1) Power on e set and Open the tray door.

2) Press <9><6><6>button to check the software

information.

The software version and other information are display

on the TV screen as follows:

BE Version: DVP3XXXXX_XX.XX

FE Version: DCX.XXXXXX.XX.XX

DSP Version: DSP.XX

Region Code: X

Caution: The set must not be power off during

upgrading, Otherwise the Main board will be

damaged entirely.

Spindle motor does not move

Motor no move

4-1

Trouble shooting chart

Check the FFC connection

between 24P and the loader.

Yes

Check whether “RFA5V”

(+5V) voltage is normal.

Yes

Check whether laser voltage

(2.3V for DVD & 1.9V for CD) on

Collector of Q2 and Q3

Yes

Correct connection

Check the RFA5V power

supply

Check/Replace Q2ǃQ3.

1.Whether voltage on pin 129 of

U1 varies between 0 and 3.3V

(3.3V for CD and 0V for DVD),

2.Whether peripheral components

are eroded or badly soldered

Yes

Have no focus

Yes

Check/Replace the loader

Check/ Replace U1.

1. Check U1 182pin

FOCUS_PWM signals

2.If there are F+, F-, T+ and T-

signals output from U7.

FOCUS_PWN waveform

The power can not be on or off

The power can’t be

on or off

4-2

Trouble shooting chart

Check the power supply

on the power board is

normal.

Yes

Check if the CON301 on

the front board to CN5 on

the decoder board is in

good contact.

Whether the connection

to K301 is broken.

Ye s

Yes

Repair the power board

Check/Correct connection

Correct the connection

Yes

Whether there is 0V and

3.3V voltage difference on

Pin 94 PCON of U1.

Yes

Replace U1.

4-3

All output voltages on the power board is 0V or deviated.

All output voltages on

the power board is 0V or

deviated

Yes

Trouble shooting chart

Check whether

F1 is blown

Check whether there is

300V on C1 or C2.

Yes

Check whether 100KHz oscillating signal on Pin6 of U1

Yes

Replace F1

Replace C1&C2 if D1, D2, D3, D4

are normal.

Check/ replace U1.

U1(PIN 3 - RC waveform)

U1(PIN 8 - Drain waveform)

Check if +5V, , +12V and

-12V are short.

Yes

Check whether the components in the

short-circuit voltage are defected or eroded.

Check whether U1 are eroded.

Disc cannot be read.

Yes

4-4

Trouble shooting chart

Check the FFC connection

between 24P and the loader.

Yes

Check whether there is laser

voltage (2.3V for DVD and 1.9V for

CD) on Collector of Q2 &Q3

Yes

Check U1, U7, and

peripheral components are

eroded or badly soldered.

Yes

Check the loaded circuit

1.Check voltage on pin 100 of U1

varies between 0 and 3.3V:

Æ3.3V for CD

Æ0V for DVD

2.Check whether

Re-solder or replace the defective parts

eripheral

Check if there is RFO signal on

pin10 of CN2. (The normal RFO

signal is a clear reticulated wave)

Yes

Check the connection

between U1

Yes

Replace U1 or loader.

Check U1 and peripheral components

Correct connection

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