Philips FR975-00, FR975-01C, FR975-17, MX980D-37 Service Manual

DIGITALE A/V SURROUND RECEIVER

FR975

/00/01C/17

MX980D/37

Service Manual

DOLBY

D I G I T A L

TABLE OF CONTENTS

Page

Location Boards / System info ................................................... 1-2

Technical Specification ............................................................. 1-3

Service Tool / Measurement setup / Safety .............................. 1-4

Warning / Handling Chip components ...................................... 1-5

Abbreviations ............................................................................ 1-6

Instruction for Use ...................................................................... 2

Dismantling hints / Service positions ......................................... 3-1

Dismantling hints MDM Module ................................................ 3-2

Wiring diagram .......................................................................... 3-3

Block diagram ............................................................................ 4

Service Test program ................................................................. 5

Front Board ............................................................................... 6

Tuner 95 diagram ...................................................................... 7A

ECO 5 Tuner diagram ............................................................... 7B

Multi-Channel Decoding Module ................................................ 8

Mains Board .............................................................................. 9

Mono Board ............................................................................... 10

Exploded view ........................................................................... 11

S-VHS Board .............................................................................. 12

Exploded view partslist .............................................................. 13

Partslist Mono Board ................................................................ 1 4

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

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.

Published by MD 0016 Service Audio Printed in the Netherlands Subject to modification

PCS 102 481

3104 215 50060

LOCATION OF PRINTED CIRCUIT BOARDS

Screw Terminal

Mains Board

P50 & Subw. & Video Selector Board

Secondary Trafo Board

1-2

Tuner Board

MDM Board

S-VHS Video Board

Mono 2 Board

Headphone & Front AV Board

SYSTEM INFORMATION

Receiver

MX 980D/37 include :

FR975/17

Front speaker

2 x Home Cinema Speaker 100W

VERSION VARIATIONS

Type &

Features & Board in used

Front colour Tuner board - Tuner 95 Tuner board - ECO 5 RDS Antenna input FM Mains cord type Mains outlet type Mains voltage Voltage selector

Versions

Front Board

Center speaker Surround speaker

Home Cinema Center Speaker 100W

2 x Home Cinema Speaker 100W

FR975

/00 Black x

x Coaxial 75R IEC IEC 230V

/01C Champagne

Coaxial 75R IEC IEC 110-127 / 220-240 x

Subwoofer

FB201V/17

/17 Black

Clickfit 300R UL polarized UL polarized 120V

PCS 102 482

SPECIFICATION FR975

1-3

General

Mains voltage :230V for /00

:110-127V / 220-240 switchable only /01/01C : 120V for /17

Mains frequency : 50Hz for /00

: 50/60Hz for /01/01C : 60Hz for /17

Power concumption : ≤ 2W at stby

: ≤ 3W at stby 240V/01/01C Dimension. wxhxd : 435x138x350 mm Remote control : Multibrand/Universal

Amplifier

Output power

Stereo mode (L+R) : 2x100W DIN only /00/01

(1kHz,0,7%THD, 6Ω)

: 2x80W FTC only /17

(40Hz-20kHz 0,7%THD, 6Ω)

Surround mode L+R : 2x100W (1kHz,0,7%THD, 6Ω) Center : 100W (1kHz,0,7%THD, 6Ω) Surround Left+Right : 2x100W (1kHz,0,7%THD, 6Ω)

Distortion (5W)

1kHz : ≤ 0,05% 40Hz - 20kHz : ≤ 0,2%

Headphone : 6,3mm stereo jack with switch

Output level : 3V EMF, 60Ω Crosstalk between source —1kHz : ≤ -65dB (1W) 250Hz – 10kHz : ≤ -60dB

Crosstalk between channels -1kHz : ≤ -55dB (1W) 250Hz – 10kHz : ≤ -50dB Frequency response

: ≤ 10Hz – ≥ 20kHz (-3dB) Limit

Power stage protection : Shortcircuit

: DC (Vout ≥ 10V) for ±1sec

Temperature : Transformer ( ≥140º Celcius)

: Heatsink ( ≥ 140º Celcius)

Audio Selector

Input sensitivity

Phono : 5mV impedance 47kΩ/220pf CD : 250mV impedance ≥ 47kΩ CDR/TAPE : 250mV impedance ≥ 47kΩ VCR : 250mV impedance ≥ 47kΩ TV : 250mV impedance ≥ 47kΩ SAT : 250mV impedance ≥ 47kΩ 6CH / DVD : 250mV impedance ≥ 47kΩ FRONT AV : 250mV impedance ≥ 22kΩ

Output level

CDR/TAPE : 250mV impedance ≤ 1kΩ VCR : 250mV impedance ≤ 1kΩ

Output level (variable)

Subwoofer pre-out : 800mV impedance ≤ 1kΩ Center pre-out : 800mV impedance ≤ 1kΩ

Digital Selector

Input : 2 x cinch

: 2 x optical

Output : 1 x cinch

Video Selector - CVBS

Input sensitivity

DVD/VCR/TV/Front AV : 1 Vpp impedance 75Ω

Output level

Monitor/VCR : 1 Vpp impedance 75Ω

Frequency response : ≤ 50Hz à ≥ 6MHz

Video Selector - SVHS

Input sensitivity

DVD/VCR/TV : 1 Vpp impedance 75Ω

Output level

Monitor/VCR : 1 Vpp impedance 75Ω

Frequency response : ≤ 50Hz à ≥ 6MHz

Tone controle

Loudness (volume ≤ -20dB Ref: 1kHz=0dB) : 100Hz +6 dB

: 10kHz +2,5 dB

Tone control (Ref: 1kHz=0dB)

: Bass 100Hz -9dB à+9dB : Treble 10kHz -9dB à+9dB

Multi Channel Decoder - MDM2000

MPEG5.1 / MPEG 7.1 (7.1 downmix to 5.1) Dolby Digital (AC-3) Digital Theater Systems (DTS) Linear PCM (up to 96kHz, 24 bits resolution) Automatic audio/data type detection (AC-3,dts,MPEG-2,PCM) Dolby Pro Logic MPEG-2 dual mono channel selection I/II Virtual Dolby Surround (422/423) Virtual MPEG Digital (522/523) Virtual Dolby Digital (522/523) Virtual DTS Surround (522/523) Multi - Front / Multi - rear / Natural Surround Digital Bass Management Parallel Stereo Downmix Four Stereo (224) Volume Control Noise Generator (test tone) Surround mode selector Delay Center and Surround Left , Surround Right

Tuner - (Tuner95 & ECO5)

RDS : Only in /00 FM

Tuning range : 87.5 – 108MHz Grid : 50kHz

: 100kHz only for /17

: 50 & 100kHz for /01/01C* IF frequency : 10.7MHz ±25kHz Aerial input : 75 Ω coaxial

: 300 Ω clickfit only for /17 Sensitivity at 26dB S/N : ≤ 2µv Selectivity at 300kHz : ≥ 55dB Image rejection : ≥ 100dB [48dB] Distortion at RF=1mV,dev.75kHz : ≤ 0,8% [0,9%]

-3dB Limiting point : ≤ 2µV Crosstalk at RF=1mV,dev.40kHz : ≥ 35dB [27dB]

: ≥ 22dB only for /17

Tuning range : 522 -1611kHz for /00

: 531 -1602kHz for/01/01C*

: 530 -1700kHz for/01/01C*

: 530 -1700kHz for /17 Grid : 9kHz for /00

: 9 & 10kHz for /01/01C*

: 10kHz for /17 IF frequency : 450kHz ±1kHz Aerial input : Frame aerial Sensitivity at 26dB S/N : ≤ 1,5mV/m [3,5mV/m] Selectivity at 9kHz : ≥ 23dB [18dB] IF rejection : ≥ 50dB [64dB] Image rejection : ≥ 33dB [28dB] Distortion at RF=50mV,m=80% : ≤ 3%

LW only in /00

Tuning range : 153 - 279kHz Grid : 3kHz IF frequency : 450kHz ±1kHz Aerial input : Frame aerial Sensitivity at 26dB S/N : ≤ 2,8mV/m Selectivity at 9kHz : ≥ 26dB

: ≥ 24dB only for /17 IF rejection : ≥ 100dB Image rejection : ≥ 45dB Distortion at RF=50mV,m=80% : ≤ 3%dB

[…] Values indicated are for “ECO 5 Tuner” only * Setting is software controlled

PCS 102 483

1-4

SERVICE TOOL

Audio Signals Test Disc 1 ................................. 4822 397 30184

MEASUREMENT SETUP

Tuner FM

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50Ω

S/N and distortion meter

e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Tuner AM (MW,LW)

RF Generator

e.g. PM5326

Ri=50Ω

DUT

Frame aerial

e.g. 7122 707 89001

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

SAFETY

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

Les normes de sécurité exigent que l`appareil soit remis à l`état d`origine et que soient utilisées les pièces de rechange identiques à celles spécifiées. Les composants de sécurité sont marqués

PCS 102 484

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Originalzustand des Gerätes darf nicht verändert werden. Für Reparaturen sind Originalersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol markiert.

SAFETY

Veiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkeliijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. De Veiligheidsonderdelen zijn aangeduid met het symbool

Le norme di sicurezza estigono che l´apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambiago identici a quelli specificati. Componenty di sicurezza sono marcati con

WARNING

1-5

GB WARNING

All ICs and many other semiconductors 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 wristband with resistance. Keep components and tools at this potential.

F ATTENTION

Tous les IC et beaucoup d´autres semi-conducteurs sont sensibles aux décharges statiques (ESD). Leur longévite pourrait être considérablement écourtée par le fait qu´aucune précaution nést prise à leur manipulation. Lors de réparations, s´assurer de bien être relié au même potentiel que la masse de l´appareil et enfileer le bracelet serti d´une résistance de sécurité. Veiller à ce que les composants ainsi que les outils que l´on utilise soient également à ce potentiel.

AVAILABLE ESD PROTECTION EQUIPMENT :

anti-static table mat large 1200x650x1.25mm 4822 466 10953

anti-static wristband 4822 395 10223 connection box (3 press stud connections, 1M ) 4822 320 11307 extendible cable (2m, 2M , to connect wristband to connection box) 4822 320 11305 connecting cable (3m, 2M , to connect table mat to connection box) 4822 320 11306 earth cable (1M , to connect any product to mat or to connection box) 4822 320 11308 KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671 wristband tester 4822 344 13999

Alle ICs und viele andere Halbleiter sind empfindlich gegenüber elektrostatischen Entladungen (ESD). Unsorgfältige Behandlung im Reparaturfall kann die Lebensdauer drastisch reduzieren. Sorgen Sie dafür, daß sie im Reparaturfall über ein Pulsarmband mit Widerstand mit dem Massepotential des Gerätes verbunden sind. Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem Potential.

ESD

WARNUNG

small 600x650x1.25mm 4822 466 10958

NL WAARSCHUWING

Alle IC´s en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.

Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevità potrebbe essere fortemente ridatta in caso di non osservazione della più grande cauzione alla loro manipolazione. Durante le riparationi occorre quindi essere collegato allo stesso potenziale che quello della massa delápparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale.

AVVERTIMENTO

HANDLING CHIP COMPONENTS

PCS 102 485

ABBREVIATIONS

1-6

ac 0VA AC 0 Voltage ac 10VB AC 10 Voltage ac 110VB AC 110 Voltage ac 120VB AC 120 Voltage ac gnd AC ground ac h1 AC high voltage 1 ac h2 AC high voltage 2 ac l1 AC low voltage 1 ac l2 AC low voltage 2 ac1 AC voltage 1 ac2 AC voltage 2 ac3 AC voltage 3 amp lr on Amplifier Left - Right On amp mute c s Amplifier mute center surround amp mute c s sub Amplifier mute center surround

subwoofer amp mute lr Amplifier mute Left - Right amp pd Amplifier power down amp prot Amplifier protection amp s on Amplifier surround On amp stby Amplifier Standby av gnd Audio ground av l Audio Left av r Audio Right A/V Audio/Video

f1 Filament 1 f2 Filament 2 fmute Fast mute

p gnd P50 ground p p50 Cinema link P50 code

s gnd Surround ground sofac scl Sofac I2C clock sofac1 sda1 Sofac 1 I2C data1 sofac2 sda2 Sofac 2 I2C data2 ss ce Source selector chipenable ss clk Source selector clock ss data Source selector data surr pre-out Surround pre-out

tu clk Tuner clock tu da Tuner data tu en Tuner enable tu gnd Tuner ground tu l Tuner Left tu r Tuner Right tu rds Tuner RDS tu stereo Tuner stereo

v gnd Video ground v scl Video I2C clock v sda Video I2C data v sig Video signal v sub sur Video subwoofer surround

gnd d Ground digital gnd s Ground signal

hp gnd Headphone ground hp l Headphone Left hp on Headphone On hp r Headphone Right hst Heatsink temperature

ls c Loudspeaker Center ls gnd Loudspeaker ground ls l Loudspeaker Left ls r Loudspeaker Right

mdm Multi channel Decoding Module mdm c out — Center out mdm gnd — ground mdm l dmix — Downmix Left mdm l in — Left in mdm l out — Left out mdm r dmix — Downmix Right mdm r in — Right in mdm r out — Right out mdm req — request mdm rst — reset mdm scl — I2C clock mdm sda — I2C data mdm sl out — surround Left out mdm sr out — surround Right out mdm sub out — subwoofer out mfd Mains failure detection

PCS 102 486