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
........................................................................... 3
Service Test program
............................................................... 4
Dismantling hints
/ Servicepositions ........................................ 5
Front Board
.............................................................................. 6
Tuner 95 diagram ...................................................................... 7A
Dolby Pro Logic Board
............................................................. 8
Mains Board .............................................................................. 9
Mono Board .............................................................................. 10
........................................................................... Explodedview 11
Partslist Explodedview ........................................................... 12
ElectricalpartslistMono Board
................................................. 13
Safety regulations require that the set be restored to its original
condition and that parts which are indentical with those specified
be used.
Copyright 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 MD 0009 ServiceAudio Printedin the Netherlands Subject to modification
3104 21 5 50040
*C
PCS 102 412
@
PHI LI PS

1-2
LOCATION OF PRINTEDCIRCUIT BOARDS
- - -. ~ .-
W..
, ."
, ..
. -_ '_. -
g
A-. . .
IO Board
--
SYSTEM INFORMATION
PCS 102413
Receiver Front speaker
MX740122include :
Center speaker
FR740100
Surround Speaker
2 x HomeCinema
Speaker 60W HomeCinema Center
Speaker 60W 2
x HomeCinema Surround
Speaker 60W

General Dolby Pro Logic
Mains voltage : 230V
Mains frequency
: 50Hz
Power concumption : 1 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 (1 kHz, 0,7%THD, 6Q)
Distortion (5W)
I k~z : r 0,05%
40Hz - 20kHz: : 1 0.2%
Headphone : 6,3mrn stereojack with switch
Output level
: 3V EMF, 60Q
Crosstalk betweensource -1 kHz : r -65dB
(1w) 250Hz - 10kHz : r -60dB
Crosstalk between channels -1kHz : r -55dB
(1W) 250Hz - 1OkHz : r -50dB
Frequencyresponse : < 10Hz - 23OkHz (-ldB)
Power stage protection : Shortcircuit
: DC (Vout21OV) for +I sec
Temperature : Transformer (2140' Celcius)
: Heatsink (t140° Celcius)
Audio Selector
Input sensitivity
CD : 250mV impedance 2 47kQ
CDWAPE : 250mV impedance 47kQ
VCR
: 250mV impedance 2 47kQ
n/
: 250mV impedance 2 47kQ
6 CHIDVD
: 250mV impedance 2 47kQ
Output level
CDRrrAPE : 250mV impedance
5 1 kQ
VCR : 250mV impedance 5 1kQ
Output level (variable)
Center pre-out
: 800mV impedance 2 1kQ
Subwoofer pre-out
: 800mV impedance 5 1kQ
Tone controle
Loudness
(volume
r -20dB Ref: 1kHz=OdB) : 100Hz +6 dB
: 10kHz +2,5 dB
Tone control (Ref: 1kHz=OdB)
: Bass 100Hz -9dB i+9dB
: Treble 10kHz -9dB i+9dB
Hall : Lt , Rt into Left, Surround, Right
Stereo bypass from
: Lt , Rt into Left, Right
Dolby Pro Logicdecoding : Lt , Rt into Left, Right, Center,
Surround
Dolby 3 Stereo decoding : Lt , Rt into Left, Center, Right
Center phantom decoding
: Lt , 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
MW
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
5 2pv
t 55dB
r 1 OOdB
5 0,8%
r2pv
235dB
: 531 - 1602kHz
: 9kHz
: 450kHz II kHz
: Frame aerial
: < 1,5mVlrn
: 2 23dB
: 2 50dB
: 2 33dB
:<3%
: 153 - 279kHz
: 3kHz
: 450kHz 11kHz
: Frame aerial
: <2,8mVIrn
: 2 26dB
: t 100dB
: t 45dB
: 13%dB
DSC settings 100Hz 1kHz 10kHz
Personal dB
O
O O
Movie dB +4 +2 +4
Speech dB
- 4 + 1
- 2
Music dB +4
- 1 +2
Multimedia dB + 7 +3 +6
PCS 102 414

SERVICE TOOL
Dolby Prologic Test Disc ....... ....... ................ 4822 395 1021 6
MEASUREMENT SETUP
Tuner FM
Bandpass
DUT 250Hz-15kHz LF Voltmeter
RF Generator
e.g. PM5326
-- -- - - - -
1 +
IN and distortion meter
Usea bandpassfilter to eliminate hum (50Hz, 100Hz)and disturbancefrom the pilottone(19kHz,38kHz).
Tuner AM (MW, L W)
Bandpass
LF Voltmeter
e.a. PM2534
RF Generator
DLiIçIOC 1
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
8 regdations requirethat the set be restoredto its
originalconditionand that partswhich are identicalwith
those specifiedbe used.
Safetycomponentsare marked by thesymbol A
a
Les normesde sécuritéexigentque I'appareil soit remis
à l'état üorigineet que soient utiliséesles piècesde
rechangeidentiques
à celles spécifiées.
Les composantsde sécuritésont marqués
a
SAFETY @
Veiligheidsbepalingenvereisen, dat het apparaatinzijn
oorspronkeliijketoestandwordt teruggebrachten da!
onderdelen. identiekaan de gespecificeerde,worden toegepast.
De Veiligheidsonderdelen
zijnaangeduidmet het symbool A
Le normedi sicurezza estigonoche I'apparecchiovenga
A
a rimesso nelle condizionioriginali e chesiano utilizzati i
a
pezzidi ricambiagoidenticia quelli specificati.
Beijeder Reparatursind die geltendenSicherheitsvor- COmponenty
di sicurezza 'On0 marcati con a
schriitenzu beachten. Der Originalzustanddes Gerates
darf nicht veranderiwerden. Für ReparaturenSind Original-
ersatzteilezu vewenden.
SicherheitsbauteileSind durchdaç Symbol A markiert.
PCS 69 733