Philips WAS-7500 Service Manual

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waS7500

all versions

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Service AIDS & CD playability ......................................1

Specifications ...............................

Connection & Controls ..................................................3

Disassembly Instructions ..............

Service test program…………………………….........…..5

Set block diagram (waS7500)........................................6

Set wiring diagram (waS7500).......................................7

AF& Board (waS7500).........................................16

IPODÐ Board (waS7500)......................................17

©

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

.................................2

................................4

V

. Eindhoven, The Netherlands

Keys Board (waS7500).................................................18

keys & RC Boa

LCD_CON Board (waS7500)........................................20

WIFI_LED Board (waS7500).........................................21

Wessli-07 Board (waS7500) .........................................22

EXPLODE DIAGRAM (waS7500).................................23

SERVICE PARTLIST ...................................................24

VARIANT FOR WAS7500 ............................................25

* This document only include center (waS7500) information, please click here to get the station (waC7500) information.

rd (waS7500)........................................19

Published by YB 0822 Service Audio Subject to modification

Version 1.2

©3141 785 32182

SERVICE AIDS

1-1

Service Tools:

Universal Torx driver holder .................................4822 395 91019

Torx bit T10 150mm ...........................................4822 395 50456

Torx driver set T6-T20 .........................................4822 395 50145

Torx driver T10 extended .....................................4822 395 50423

GB

All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential.

WARNING

GB

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used

Safety components are marked by the symbol

!

.

Compact Disc:

SBC426/426A Test disc 5 + 5A ...........................4822 397 30096

SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155

SBC429 Audio Signals disc .................................4822 397 30184

Dolby Pro-logic Test Disc ....................................4822 395 10216

ESD

CLASS 1

LASER PRODUCT

Lead free

1-2

CD PLAYABILITY

Customer complaint

"CD related problem"

check playability

for at least 10 minutes

CHECK

playability

ok ?

Y

Play a CD

Set remains closed!

1

N

"fast" lens cleaning

check playability

playability

ok ?

Y

3

For flap loaders (= access to CD drive possible) cleaning method

is recommended

4

Standard repair procedure

N

clean the lens

check playability

4

check playability

playability

ok ?

Y

add Info for customer

"SET OK"

return set

1

- 7

For description - see following pages

2

5

6

7

Y

return set

N

replace CD Drive

return set

N

replace CD Drive

return set

playability

ok ?

N

check "EYE-Pattern"

EYE-Pattern

ok ?

Y

check Laser current

Laser current

ok ?

Y

check CD Drive offsets

replace Signal Processor

return set

Y

CD Drive offsets

N

ok ?

replace CD Drive

return set

1-3

CD PLAYABILITY

CHECK

1

PLAYABILITY CHECK

For sets which are compatible with

use CD-RW Printed Audio Disc....................7104 099 96611

TR 3 (Fingerprint) TR 8 (600µ Black dot) maximum at 01:00

• playback of these two tracks without audible disturbance playing time for: Fingerprint ≥

Black dot from 00:50 to 01:10

• jump forward/backward (search) within a reasonable time

For all other sets

use CD-DA SBC 444A..................................4822 397 30245

TR 14 (600µ Black dot) maximum at 01:15 TR 19 (Fingerprint) TR 10 (1000µ wedge)

• playback of all these tracks without audible disturbance playing time for: 1000µ wedge ≥10seconds

Fingerprint ≥10seconds Black dot from 01:05 to 01:25

• jump forward/backward (search) within a reasonable time

CD-RW discs

10seconds

4

LIQUID LENS CLEANING

Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens.

Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent B4-No2”, available with codenumber 4822 389 10026.

The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function. Clean the lens gently (don’t press too hard) with a soft and clean cotton bud moistened with the special lens cleaner.

The direction of cleaning must be in the way as indicated in the picture below.

2

CUSTOMER INFORMATION

It is proposed to add an addendum sheet to the set which informs the customer that the set has been checked carefully - but no fault was found. The problem was obviously caused by a scratched, dirty or copy-protected CD. In case problems remain, the customer is requested to contact the workshop directly. The lens cleaning (method 3) should be mentioned in the addendum sheet.

The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations.

3

FAST LENS CLEANING (dry brush)

Use lens cleaning CD

SBC AC300...........................................9082 100 00043

Insert the lens cleaning CD, press PLAY and follow the voice guide´s instructions on the CD.

Sanyo DA12T3

CD Drive

A

F

C

B

E

C

D

E

VCC

B

VREF

F

D

9

10

11

12

13

14

15

16

1800

+5V_HF

VrefCD10

A

D

E

B C

F

GND

8

E

D

A

B

C

F

Laser power control

100n

2878

470n

2876

3821

1R

1K

3823

2880

33p

+5V

BC807-40

7879

3817

47R

3820

4R7

47R

3819

1n

2879

2877

47u

1

8

4

7811-A

LM358D

3

2

10K

3822

47R

3818

2841

100n

47n

2869

+5V_HF

LASER DIODE

U >250mV

->Laser damaged !

4,6V

3V

3,3V

3,9V

2V

0,17V

Sanyo DA12T3

HF-Amplifier

D3

D2

D1

680R

3905

3903

3K3

BC847B

7877

47n

2818

1K5

3902

5

7

4

2

1

6

3

64

8

9

10

11

470R

3893

+3.3V

2K2

3908

10K

3923

BC847B

7878

BC847B

7876

4n7

2813

3896 100R

220u

2885

2881 560p

47n

2887

560R

3901

2883 470n

2817

4u7

3n3

2814

3898 220R

3895

27K

470n

2884

+3.3V

3909

820R

3907

100R

3920

33K

3897

2882

82p

3K3

3904

2K7

3899

3906

470R

+5V_HF

HFIN

VrefCD10

100p

28152816

22n

LDON to 3826,3827

VREF GE

VDDA1

VRIN

VSSA1

ISLICE

LD

ON

D1

D2

D3

D4

HFIN

HFREF

IREF

CD_DA: 0V / CD_RW: 3V

Σ

(A-D)

800mVpp

TB = 0.5µs/div

EYE-PATTERN

1,8V

1,2V

2,4V

2,6V

0,65V

CD PLAYABILITY CHECK

1-4

5

EYE-PATTERN SIGNAL – JITTER MEASUREMENT

Measure the signal on the input of the Signal processor using an analog oscilloscope. Please find the exact measuring point in your Service Manual.

See below examples of the signal. Amplitude should read at least 700mVpp using SBC444A.

6

CD DRIVE – LASER CURRENT MEASUREMENT

The laser current can be measured as a voltage drop on a resistor. The resistor is marked in every Service Manual. The value depends on the type of CD drive.

typical value most probably defect

VAMxxxx : 150-230mV MCDxx : 170-230mV DA1x : 210-250mV ≥350mV DA2x : 175-200mV Use SBC444A (CD-DA) for measurement.

≥

350mV

≥

300mV 250mV

≥

If the oscilloscope shows a signal like the ‘bad’ one, and/or the amplitude decreases within 1 minute - the CD drive has to be replaced.

good

bad

7

CD DRIVE – OFFSET MEASUREMENT

The photodiodes of the CD-drive may have an offset. These offsets have to be compensated by the signal processor. High offsets can lead to poor playability of some CDs (skipping tracks).

To measure the offset values, start the Program - section “Focus Test” without a CD.

The offsets can be measured with a DC Millivoltmeter directly on the connector (see drawing below). Pin numbering varies from drive to drive.

The values from diode A-D should read 0±10mV. Diodes E and F are less critical.

If one of the offsets is higher than ±10mV the CD drive has to be replaced. Otherwise replace the Signal Processor.

Service Test

-/12

2 - 1

/ WPA2(8-63 characters)

Wired (LAN / Ethernet)

WAC7500

WAS7500

WAC7500

WAS7500

WAC7500

WAS7500

WAC7500

WAS7500

WAC7500

WAS7500

WAC7500

WAS7500

WAC7500

45

22 20

616 x 272 x 172 mm

387 x 272 x 128 mm

8.8

3.6

2 x 20 + 40 W (RMS) 2 x 7.5 + 15 W (RMS)

4

14

6

75

20

Wired standard

Speed

Mode Crossover detection (Auto MDIX)

(wac7500 only)

802.3/802.3u

10 / 100 MBit/s

half / full duplex

Yes

60

Dipole-antenna(75 IEC-connector)

60-2000

320

80 128 or 160,192,256,320kbps

16

* Actual free space is 70GB or less

or MP3 compression

f

tition

r

pa database and demo t

USB player

USB

USB class

Number of tracks/titles

Specifications and external appearance are subject to change without notice.

r

acks stored.

,

due to the buf

m

,

e

mwar

r

i

f

,

12Mb/s, V1.1

(supports MP3, WMA and M4A files)

MSC, MTP maximum 9999

usic C

f

e

r

D

CONNECTION AND CONTROLS

3 - 1

Controls

Navigation controls (left, right up, down)

allow you to scroll through the option lists

14 1 / 2 / 3 / 4

USB jack

1 Antenna

2.2.1 Controls on Center and Station

2

1

HD / CD / USB / UPnP: returns to previous

option lists

Insert discs with graphics facing you

3 Disc slot (loader) (only )

4

/

HD / CD / USB / UPnP skips/searches

tracks/passage back/forward (in playback

3

(only )

/

4

screen)

Ejects a disk from the CD slot

5 LCD

Fast scroll through options/alphanumeric

lists

Radio: tunes to stations

2

Confirms selection

Radio: enters the list of present stations

oost)

B

ass

Display shows the status of the set

HD: moves music playback between Center

and Station

6 MUSIC FOLLOWS ME

Toggles the bass enhancement between on

7 DBB (Dynamic B

ess to skip to previous track / press & Pr

hold to rewind

15 J(

selects the sound settings for the

(DBB1, DBB2, DBB3) and off

HD:

8 SMART EQ (only )

Enters or exits setup menu

16 MENU

current music type (genre)

(Universal Plug & Play) ,

Selects HD Music , CD , Radio ,

UPnP

17 HOME

Adjusts the volume level up

9 VOLUME +

10 VOLUME -

(USB Universal Serial Bus) , or

Portable

Adjusts the volume level down

(separately connected device)

AUX

11 9

een modes

y to toggle betw

ess & hold to toggle power modes

ess briefl

Standby and ON.

Pr

18 y ON / STANDBY / ECO STANDBY

ess to skip to next track / press & hold

Stops playback or recording

Pr

12 )K

ving mode).

between ON and Eco Standby (power-

sa

2;

/

to fast forward

13 OK

. y

y or Eco Standb

Green indicator light = the set is

switched ON.

Red indicator light = the set is switched

to Standb

Starts or pauses playback

6

578

7

6

5

9

10

11

13

12

14

21

15

16

17

2143

18

21

20

9

11

13

15

17

10

12

14

16

18

212019

Controls

3 - 2

)

5 jkl

Controls

, -

VOL +

Adjusts the volume level up or down

6

1 y

Press briefly to switch the set to ON or Standby

Enters or exits the setup menu

7 MENU

Press & hold to switch the set to Eco Standby (power-

saving mode)

Deactivates the sound temporarily

8 MUTE

UPnP

Radio ,

CD ,

Selects HD Music ,

2 HOME

(USB Universal

(Universal Plug & Play) , Portable

AUX (separately connected device)

Serial Bus) , or

Stops playback or recording

9 9

,

and selects

ON

, CD , Radio ,UPnP

In Standby mode: switches the set

HD Music

)K

10

Portable , or AUX

Press to skip to previous track / press &

hold to fast forward

Selects random playback

Selects continuous playback

11 SHUFFLE (3 def)

Selects HD (Harddisk) source

3 HD

12 REPEAT (2 abc)

witches the set ON and selects s :

y mode

HD (Harddisk) source

In Standb

Navigation controls (left, right, up, down) allow you to

scroll through the option lists

4 1 / 2 / 3 / 4

oost) (

B

ass

B

ynamic

D

(

Toggles the bass enhancement between on

Selects Incredible Surround sound effect

13 INCR.SURR. (6 mno)

14 DBB

returns to previous option lists :

moves the cursor backwards

ext input: T

1

HD/CD/USB/UPnP

(DBB1, DBB2, DBB3) and off

Radio: selects RDS information

HD/CD/UPnP/AUX/USB: toggles

15 RDS/NEWS (9 wxyz)

ches tracks/passage

ough options list

4

/

back/forward (in playback screen)

Scrolls fast thr

3

HD/CD/USB/UPnP: skips/sear

between NEWS function on or off

HD: plays all the tracks of the current

16 SAME GENRE (8 tuv)

eset stations

enters the list of pr

Radio: tunes to stations

2

Confirms selection

Radio:

Searches by leading keywords

Genre

17 SEARCH ()

forward

Text entry: confirms input and moves the cursor

5OK, 2/;

Selects or deselects tracks you want to

record (press & hold to select/deselect ALL

tracks)

18 MARK/UNMARK (0 V) (only )

ying

ts pla

Confirms selection

star

ves music playback between Center mo

:

HD

and Station

19 MUSIC FOLLOWS ME

CD/Radio/AUX: starts to record to the HARDDISK (HD)

19 0 RECORD (only )

Selects Incredible Surround sound effect

20 INCR.SURR.

HD: broadcasts music from the Center to the Station

21 MUSIC BROADCAST (only )

y )

(onl

T EQ

HD: selects the sound settings for the current Genre

SMAR

1

31

9

111315

234

30

23

2

32

1

3

30

17

33

28

4

5

10

27

5

678

29

9

678

29

10

28272625242322

11

15

13

12

14

25

26

12

24

16

14

19

20

16

21

17

181920

21

2-WAY REMOTE CONTROL

1-WAY REMOTE CONTROL

18

CONNECTION AND CONTROLS

3 - 3

Selects CD source

In Standby mode: switches the set ON

and selects CD source

30 CD/MP3-CD (only )

y )

(onl

ol

emote contr r

Selects FM radio

32 FM TUNER

Synchronizes the displays of the set and the

31 REFRESH

y connected device)

Selects AUX (separatel

33 AUX

For more information onoperation instruction please visit Philips

Audio internet site :

http://www.audio.philips.com

e the or

Controls

HD: broadcasts music from Center to Station

MUSIC BROADCAST

20

21 Spare

22 DIM

Toggles display brightness between dim and

normal

23 VIEW

(7 pqrs)

Toggles between playback screen and

previous options list

24 SAME ARTIST

: plays all the tracks of the current artist

HD

HD: enables wireless range extender (refer

to extender’s manual for details)

(4 ghi)

HD: selects the sound settings for the

25 SMART EQ

current Genre

Adjusts, displays or switches off the sleep

26 SLEEP (1 .,?!’@-_:;/)

timer

27 J(

Press to skip to previous track / press &

: deletes the input bef

CLEAR

Text entry

hold to rewind

cursor

: starts to record to the HD

AUX

/

(only )

0

Radio

/

CD

28 REC

SCROLL 3, 4

29

Scrolls the display screen up or down

CONNECTION AND CONTROLS

3 - 4



DISASSEMBLY INSTRUCTION(waS7500)

4 - 1

1.REMOVE STAND ASSEMBLY REMOVE SCREW T4 X 8 - 4PCS -

A

2.REMOVE FLARE COVER REMOVE SCREWS T3 X 16 - 16PCS -

A

4.REMOVE TUNER MODULE

A

REMOVE SCREW M3 X 10 - 1PCS

6.REMOVE IPOD & ETH BOARD REMOVE SCREWS T2.5 X 8 - 2PCS -

A

5.REMOVE USB SOCKET REMOVE SCREWS T2.5 X 8 - 2PCS

7.REMOVE AF BOARD REMOVE SCREW T3 X 10 - 1PCS -

A

3.REMOVE FRONT ASSEMBLY REMOVE SCREWS T3 X 16 - 2PCS -

REMOVE SCREWS M3 X 8 - 2PCS -

A B

A

B

REMOVE SCREW T2.5 X 8 - 4PCS -

B

SERVICE TEST PROGRAM

p

)

(

)

5 - 1

Display shows

Welcom to FSM

Ver: x.x

OK

Display shows

1.HW Test

Display shows

2.LCD Test

OK

STOP

OK

To enter service mode,keep OK key depressed while

lugging the main AC cord

Display shows

HW Result

111111

Display shows

3.KEY Test

Display shows

4.WiFiSetting

STOP

OK

STOP

OK

Display shows

3.1Keypad Test

VOL

Display shows

3.2 RC6 Test

Display shows

4.1 Channel1

VOL

OK

VOL

Press STOP key twice

Test all keys on pannel (Disolay shows key name

Test all keys on remote control

Disolay shows key name

Press STOP key twice

VOL

Display shows

4.2 Channel2

VOL

STOP

VOL

Display shows

Key Test OK

(or Fail)

Display shows

RC6 Test OK

(or Fail)

Display shows

4.10 Channel10

VOL

Display shows

4.11 Channel11

VOL

SERVICE TEST PROGRAM

5 - 25 - 2

Display shows

5.FANControl

Display shows

6.LCDContrast

OK

STOP

OK

STOP

Display shows

5.1Full Speed

Display shows

6.1Setting1

VOL

Display shows

5.2FAN Off

Display shows

6.2Setting2

VOL

OK

Display shows

Setting OK or Setting Fail

OK

Display shows

Setting Deployed

Display shows

6.3Setting3

OK

Display shows

Setting Deployed

Display shows

9.Reset Setting

Display shows

0.Information

OK

STOP

OK

Display shows

Resetting

Display shows

0.1ModVersion

STOP

Display shows

ModuleVer

6287*

OK

Display shows

EEPROMReset OK

VOL

Display shows

0.2WiFiMAC

VOL

STOP

OK

Display shows

WiFi MAC

012345678901*

EEPROMReset Fail

or

VOL

Display shows

0.3EtherMAC

VOL

STOP

Display shows

Ethernet MAC

00903E2D2719*

OK