Philips FR740/00 User manual

SURROUND RECEIVER

Service

TABLE OFCONTENTS

Page

LocationBoards

System info

..................................................

1-2

Technical Specification

..............................................................

1-3

Service Tool

Measurementsetup

Safety

..............................

1-4

Warning

HandlingChipcomponents

......................................

1-5

Abbreviations

............................................................................

1-6

Instructionfor Use

......................................................................

2-1

Wiring diagram

.........................................................................

2-18

Block diagram

...........................................................................

Service Test program

...............................................................

Dismantling hints

Servicepositions

........................................

Front Board

..............................................................................

Tuner

diagram

......................................................................

Dolby Pro Logic Board

.............................................................

Mains Board

..............................................................................

Mono Board

..............................................................................

...........................................................................

Explodedview 11

Partslist Explodedview

...........................................................

ElectricalpartslistMono Board

.................................................

Safety regulations require that the set be restored to its original

condition and that parts which are indentical with those specified

be used.

1995

PhilipsConsumer Electronics

B.V.

Eindhoven,The Netherlands

All rightsrese~ed.Nopartof this publicationmay be reproduced,stored ina retrieval

system or transmitled, inany formor by any means, electronic,mechanical,photocopying,

or otherwisewithoutthe prior permissionof Philips.

Publishedby

0009

ServiceAudio Printedin the Netherlands Subject to modification

3104 21

50040

PCS

102

412

PHI

1-2

LOCATION OF PRINTEDCIRCUIT BOARDS

W..

'_.

A-.

Board

SYSTEM INFORMATION

PCS 102413

Receiver Front speaker

MX740122include

Center speaker

FR740100

Surround Speaker

HomeCinema

Speaker 60W HomeCinema Center

Speaker 60W 2

HomeCinema Surround

Speaker 60W

General Dolby Pro Logic

Mains voltage

230V

Mains frequency

50Hz

Power concumption

2W at stby

Dimension

138x435~350mm

Remote control

RC2526

Amplifier

Output power

Stereo mode (L+R) :2x60W DIN

(1kHz, 0,7%THD, 6Q)

Surround mode

L+R

2x60W (1kHz, O,7%THD, 6Q)

Center

60W (IkHz, 0,7%THD,6Q)

Surround Left+Right

2x60W

kHz, 0,7%THD, 6Q)

Distortion (5W)

k~z

0,05%

40Hz

20kHz:

0.2%

Headphone

6,3mrn stereojack with switch

Output level

3V EMF, 60Q

Crosstalk betweensource -1 kHz

-65dB

(1w) 250Hz

10kHz

-60dB

Crosstalk between channels -1kHz

-55dB

(1W) 250Hz

1OkHz

-50dB

Frequencyresponse

10Hz

23OkHz (-ldB)

Power stage protection

Shortcircuit

DC (Vout21OV) for

sec

Temperature

Transformer (2140' Celcius)

Heatsink (t140° Celcius)

Audio Selector

Input sensitivity

250mV impedance

47kQ

CDWAPE

250mV impedance 47kQ

VCR

250mV impedance

47kQ

250mV impedance 2 47kQ

6 CHIDVD

250mV impedance 2 47kQ

Output level

CDRrrAPE

250mV impedance

VCR

250mV impedance

1kQ

Output level (variable)

Center pre-out

800mV impedance 2 1kQ

Subwoofer pre-out

800mV impedance

1kQ

Tone controle

Loudness

(volume

-20dB Ref: 1kHz=OdB)

100Hz

10kHz +2,5 dB

Tone control (Ref: 1kHz=OdB)

Bass 100Hz -9dB i+9dB

Treble 10kHz -9dB i+9dB

Hall

Rt into Left, Surround, Right

Stereo bypass from

Rt into Left, Right

Dolby Pro Logicdecoding

Rt into Left, Right, Center,

Surround

Dolby 3 Stereo decoding

Rt into Left, Center, Right

Center phantom decoding

Rt into Left, Right, Surround

(Phantom

no center speaker)

Surrounddelay

variable (15

30 msec)

Center mode

Large, smal, phantom

Testtone

Tuner

(Tuner95)

RDS

Only in 100

FM Tuning range

IFfrequency

Aerial input

Sensitivity at 26dB SIN

Selectivity at 300kHz

lmage rejection

Distortion at RF=lmV,dev.75kHz

-3dB Limiting point

Crosstalk at RF=lmV,dev.40kHz

Tuning range

Grid

IFfrequency

Aerial input

Sensitivity at 26dB SIN

Selectivity at 9kHz

IF rejection

lmage rejection

Distortion at RF=50mV,m=80%

LW only in 100

Tuning range

Grid

IFfrequency

Aerial input

Sensitivity at 26dB SIN

Selectivity at 9kHz

IF rejection

lmage rejection

Distortion at RF=50mV.m=80%

10.7MHz f25kHz

75 Q coaxial

2pv

55dB

OOdB

0,8%

r2pv

235dB

531

1602kHz

9kHz

450kHz

kHz

Frame aerial

1,5mVlrn

23dB

2 50dB

2 33dB

:<3%

153

279kHz

3kHz

450kHz 11kHz

Frame aerial

<2,8mVIrn

26dB

100dB

45dB

13%dB

DSC settings 100Hz 1kHz 10kHz

Personal dB

Movie dB +4 +2

Speech dB

Music dB +4

1 +2

Multimedia dB

7 +3 +6

PCS

102

414

SERVICE

TOOL

Dolby

Prologic

Test

Disc

.......

................

4822

395

1021

MEASUREMENT

SETUP

Tuner FM

Bandpass

DUT 250Hz-15kHz

Voltmeter

RF Generator

e.g.

PM5326

and distortion meter

Usea bandpassfilter to eliminate hum (50Hz, 100Hz)and disturbancefrom the pilottone(19kHz,38kHz).

Tuner

(MW,

Bandpass

Voltmeter

e.a. PM2534

Generator

DLiIçIOC

dj/~

anddistortion meter

e,g. SoundTechnology

ST1700B

To avoid atmospheric interferenceal1 AM-measurementshave to be carried out ina Faraday's cage.

Usea bandpassfilter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

SAFETY

regdations requirethat the set be restoredto its

originalconditionand that partswhich are identicalwith

those specifiedbe used.

Safetycomponentsare marked by thesymbol

Les normesde sécuritéexigentque I'appareil soit remis

l'état üorigineet que soient utiliséesles piècesde

rechangeidentiques

celles spécifiées.

Les composantsde sécuritésont marqués

SAFETY

Veiligheidsbepalingenvereisen, dat het apparaatinzijn

oorspronkeliijketoestandwordt teruggebrachten da!

onderdelen. identiekaan de gespecificeerde,worden toegepast.

De Veiligheidsonderdelen

zijnaangeduidmet het symbool

Le normedi sicurezza estigonoche I'apparecchiovenga

rimesso nelle condizionioriginali e chesiano utilizzati i

pezzidi ricambiagoidenticia quelli specificati.

Beijeder Reparatursind die geltendenSicherheitsvor- COmponenty

sicurezza

'On0

marcati

con

schriitenzu beachten. Der Originalzustanddes Gerates

darf nicht veranderiwerden. Für ReparaturenSind Original-

ersatzteilezu vewenden.

SicherheitsbauteileSind durchdaç Symbol

markiert.

PCS

733

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