Philips MC-127 Service Manual

CD playback Compact design Micro Hi-Fi System

MC127

-/05/12

CONTENTS

Technical specification and disassembly diagrams..........................1

Service and safety instructions.........................................................2

Block diagram ................................................................................3-1

Wiring diagram ..............................................................................4-1

DISPLAY+ MAIN+ TUNER+ LINE IN board

Circuit diagram...................................................................5-1..5-3

Layout diagram .........................................................................5-4

Power board

Circuit diagram .........................................................................6-1

Layout diagram .........................................................................6-2

Exploded view diagram .................................................................7-1

Revision list ...................................................................................8-1

©

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 SW 1125 Service Audio Subject to modification

Version 1.0

3141 785 36420

General description: MC127- PORTABLE CD SOUNDMACHINE TUNER

LIFETIME : 5 YEARS (ACC. TO UAN-D1611) PERFORMANCE CLASSES :

TUNER

SUPPLY,

AMPLIFIER

I x x x 3

II x 4

III 5

SAFETY REQUIREMENTS:

IEC 60065:2001(SEVENTH EDITION)+AI:2005------SAFETY

RADIATION, IMMUNITY REQUIREMENTS: (EMC)

EN55013:2001+A1:2003+A2:2006;EN55020:2007 EN61000-3-2:2006+A2:2009;EN61000-3-3:2008 EN61000-4-5:2006; EN61000-4-11:2004

CLIMATIC REQUIREMENTS: (acc. to UAN-D1590) All climates: -10 °C till +50 °C (Functional); Set has to be pre-conditioned for 2 hour, except CD function 8 For all measurements: 25 °C 9

POWER SUPPLY: MAINS (AC) operation DC (int. or ext.) operation / Backup Buffer

Voltage

Battery type: 10

selection: Selection:

See table below

Frequency: External DC: No 12

POWER CONSUMPTION:

Standby: Less than ＜1W Maximum: 12W Maximum: 14

General:

Q and R according to production division rules : Q < 1% (Major), Q < 4% (Minor) Measured according to: R < 3% (CE52)

DERIVED VERSIONS: APPROBATION

Versio

n

93

Voltage on

typeplate

240V, 50Hz

REMARKS:

SPEAKER

BOXES

RECORDER CLOCK CD DCC TELEPHONE

Standby: 13

Tolerance Frequency Tuner

10%

(216V – 264V);

50Hz

FM,

REC.

PLAYER

6

7

11

UK

15

16

1 2

TUNER PART

TECHNICAL description:

2011-04-01

1

2

3

CDSM WITH

MC127

SET SPECIFICATION

(circuitry) FM (active components) FM

RF

SI4704 SI4704

1

IF Detector Decoder

SI4704 SI4704

SI4704

GENERAL part:

WAVE RANGE TOLERANCES TUNING

FM 87.5MHz - 0.3 MHz

108MHz + 0.5 MHz 9

10

AERIAL:

FM telescope - 540 mm 12

FM wire : N/A Execution - Rotational 180° 13

INDICATORS:

Pointer stroke: Execution pointer: 14 Knob indication over: Field Strength: 15

ELECTRICAL DATA:

AM: nom. limit FM:

wave range Sensitivity for

18 24 55 122dB 22 20 50 111dB

FM

nom. lim.

31

μV/m

unit

REMARKS:

SUPPLY, AF-AMPLIFIER & LOUDSPEAKER (Boxes) PART:

TECHNICAL description:

2011-04-01

1

2

3

QD

noise limited sensitivity

50mW

dBμV/m

dBf

μV

CDSM WITH

MC127

-3dB limiting point Amplification reserve AFC holding range Distortion (RF 1mV, Δf 67.5kHz) Stereo -46dB quieting

Cross-talk (RF 1mV, Δf 40kHz, 1kHz) IF

(26dB)

Image

rejectio

n

IF

rejectio

n

dBf dB dB dB

large

signal

f f

mV/m

SET SPECIFICATION

1MHz 6

1MHz 7

nom.

20 26 dBf

0 -4 dB

-

1 7 %

48 52

25 20 dB

limit

29 30

2 3 4

5

8

16 17 18 19 20 21 22 23

24

25 26 27

28

Power supply Tone Control AF-Amplifier Loudspeaker Active

components Passive components 4 GENERAL part: Aux in jack type Ø 3.5mm 5 Loudspeaker filter, high pass None 6 Loudspeaker filter, low pass None 7 Power stage protection Temperature – YES; Short circuit – YES 8 Public address No 9

INDICATORS:

Output power or VU-meter No 11 Frequency response No 12 Low power (battery) No

14

UTC8227 1

2 X 8Ω, 2W

3

13

ELECTRICAL DATA:

TONE/EQUALIZER/DBB DSC Balance control No 15 Mechanical noise (ISO 1996) 16 Noise overall (ISO) 17

Channel difference at -46dB Type: < 3 dB 18

Hum (vol.max.-20dB to vol.min.) Limit: 2mV 19 Residual noise(volume min) Limit: 2mV 20 DBB on (Vol.max.-20dB): 100Hz, +6dB

(±2dB) w.r.t. 1kHz at DBB on

DBB off (Vol.max.-20dB): 100Hz, -2dB

(±2dB) w.r.t. 1kHz at DBB on

Input sens.:Nom. 500 mV 23

for 50mW Limit: 600 mV 24

Line outp.: Nom. mV 25

voltage Limit: mV 26

OUTPUT POWER: Mains operation: D=10% 28

Music power (MPO) / (PMPO): (acc. to DIN45324) 29 Short term maximum output power: - (acc. to IEC 60268-15) 30 Long term maximum output power: - (acc. to IEC 60268-15) 31 Headphone output voltage/power: n.a. 32 Bandwidth FTC – 1dB at: n.a. (acc. to FTC/16/1/D/432) 33 Bandwidth DIN – 3dB at: - (acc. to IEC 60268-15) 34 Frequency response at Vol. max – 20dB: LOUDSPEAKER (output):

Low pass crossover frequency: - kHz tolerance: Hz 36 High pass crossover frequency: - kHz tolerance: Hz 37 Short term maximum output power: - W (acc. to IEC 60268-15) 38 Long term maximum output power: - W (acc. to IEC 60268-15) 39 Frequency response at: - Hz kHz 41

REMARKS:

27 : Measured in Tuner mode; 28: CD or Tape mode.

DBB has no dynamic, fixed to

6dB

22

2 X 1W 8Ω

typ. 60Hz to 20kHz (±

3dB)

Limit: -1dB 27

35

21

42

2011-04-01

1

2

3

CDSM WITH

MC127

SET SPECIFICATION

TAPE function: (ECO-MTF-PA-SD-MS (FE) Module)

General description:

3 5

6 7

Mechanical specification:

8

1 2

4

10 11 12 13 14 15 16 17 18 19

Indicators:

Recording level No 21 Play back level No 22 Tape counter No 23

Electrical data:

Bias system FM/AM 24 RIF switch No 25 Erase system FM/AM 26 Erasing damping 27 Channel separation (IEC1) 28 Track separation (IEC1) 29 Frequency response (PB) 30 SNR 250nWb/m 31 Signal/hiss 250nWb/m 32 Signal/hum 250nWb/m 33 Channel difference (PB) 34 Distortion 250nWb/m 35 ALC attack time 36 ALC release time 37 Crosstalk Between forward to reverse track 38 REMARKS: 31: * not according to PQR clause 18.5 class I 31: ** Chromium performance not fulfilled

Amplification Reserve for Tape = 1dB ±2dB

20

9

39

For details, please see specification SH-190 of ECO-MTF-PA-SD (3140 117 14890).

CD-PART

Technical description:

Input Output Motor/control Logic control 1

: ( CD MECHAISM-DA11B3VF)(SANYO) 5

2011-04-01

1

2

3

CDSM WITH

MC127

SET SPECIFICATION

Active components MMSA9258(Mitsu

mi) Passive components Signal processing HF-preamplifier Active components SC9614 SC9614 SC9640 5 Passive components

Indicators/Display/Keys:

Display: Digits LCD for Track No. display 7 Keys: one 4-position slider switch, 6 tact switches on unit, 6 for CD -: Play, Stop, Previous/Search down,

Next/Search up, Program/Program review, CD-modes (Repeat/Shuffle)

Playability: (acc. To AR 30-05-239) Limit Typical Testdisc 9

Wedge Eccentric

Fingerprint No audible defect TNO 11of Subchassis 8A 12 Black dot Skew 0.6mm No audible defect TNO 1,6 of 0.6mm skew (7104 099

Bad HF track No audible defect TNO 8 of Subchassis 8A 15 Heavy fingerprint No track

Playback position Horizontal, Normal position (Set is located on a flat surface, floor) 17

- Playback of above mentioned tracks possible without track loss or audible defects. 18

- Double black dot, max. diameter, thin/thick disk is according to PQR or AR 30-05-239)

- This unit can playback (only) CD-R or CD-RW discs. For performance specification, please refer to module specification of CD99 (3103 308 52190) Shock resistance: (acc. to AR 13-A6-CD-068)

± Z axis ± X or Y axis

Acoustical noise:

Mode: Play/Pause 35 dBA max. (45 dbA in Search mode) 21 Mode: Jump (Next) 45 dBA max. 22 AUDIO part: (Measured with Audio Signals Disc-1, 7104 078 04911 on Speakers or Headphone socket with nom.

load)

Typ. Limit 23 Output level (TNO1) 24 SNR unwtd. 60 dB 48 dB 25 SNR wtd. dBA 65 dBA 57 dBA 26 Crosstalk (1kHz) 40 dB 26 dB 27 Crosstalk (10kHz) 30 dB 16 dB 28 Frequency response

Vol.max.–20dB (DBB on)

THD (1kHz, -6 dB) 0.2 % 2 % 30 THD (10 kHz, -20 dB) < 1 % < 3 % 31 Channel difference 2 dB 3 dB 32 Frequency accuracy - +/-0.5 % 33 De-emphasis

REMARKS:

3

6

500 μm 700 μm 150 μm 200 μm TNO 1,24 of 200μm disc

500 μm 600 μm

TNO 10 of Subchassis 8A 16

jumps/plops

5 G 19 5 G m 20

+9dB +3dB

15μs / 50μs Switchable via Subcode information

TNO 7,9 of SBC 444A (7104 099 24990) 10

24960)

TNO 13 of SBC 444A (7104 099 24990) 13

28260)

±2dB at 100Hz ±2dB at 10kHz

- Amplification reserve for CD = +2dB (±2dB); Ref. Level for CD is a 0dB track instead of a –6dB track.

SC9640 2

Servoprocessor

(7104 099

4

8

11

14

29

34

35

Feature Specification of MP3 CD

CODEC / COMPRESSION Format Compatibility

2011-04-01

1

2

3

CDSM WITH

MC127

SET SPECIFICATION

√

)

√

MP3 X

MPEG 2.5 X MP3 Pro X WMA X AAC X

Playback CAPACITY

Maximum number of

X

40

35

36 37 38 39

tracks per CD Maximum number of

X

41

albums per CD

DISC TYPE

CD-RW CD-R 8 cm 12 cm

DISC SIZE (MB

185 225 650 680 700

42 43 44 45

46 47 48 49 50

ISO-9660 + Joliet X Joliet X UDF (Direct CD from X ID3 X

Packet writing X

51 52 53 54

55

Multi-session CDDA X Multi-session MP3 X Closed session Open session Finalized disc Unfinalized disc

56 57 58 59 60 61

CDDA + MP3/WMA X MP3/WMA + CDDA X MP3/WMA + CDDA

X

62 63 64

+ MP3/WMA CDDA + MP3/WMA

X

65

+ CDDA Video + CDDA X

CDDA + Data X MP3/WMA + Data X

66 67 68

2011-04-01

2

1

CDSM WITH

MC127

3

SET SPECIFICATION

)

√

y

BITRATE (kbps

64 -192 X 8 – 320 X Variable X

Sampling RATE (kHz

8 X

11.025 X 12 X

16 X

22.05

24 X 32 X

44.1 X 48 X 96 X

UPGRADE ABILITY

MP3 X MP3 Pro X WMA X AAC X

SOUND

Single Channel Dual Channel Stereo & joint Stereo Intensity Stereo MS Stereo

LANGUAGE SUPPORT

English X Chinese X

Playlist Compatibilit

WinAmp X Realjukebox X MS Mediaplayer X MusicMatch X

X

70 71 72

73 74

75 76 77 78 79 80 81 82

83 84 85 86

87 88 89 90 91

92 93

94 95 96 97

2011-04-01

2

1

CDSM WITH

MC127

3

SET SPECIFICATION

e

MEASUREMENT SETUP

Tuner FM

2-1

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50:

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=50:

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).

CD

Use Audio Signal Disc (replaces test disc 3)

DUT

L

R

SBC429 4822 397 30184

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

-

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

or Universal Test Cassette

LF Generator

e.g. PM5110

Fe SBC420 4822 397 30071

DUT

L

R

S/N and distortion met

e.g. Sound Technology ST170

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1

2 - 2

playability

ok ?

Y

Play a CD

for at least 10 minutes

check playability

playability

ok ?

Y

N

"fast" lens cleaning

check playability

playability

ok ?

N

3

N

Y

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

4 is recommended

add Info for customer

"SET OK"

2

return set

1 - 4 For description - see following pages

Exchange CDM

INSTRUCTIONS ON CD PLAYABILITY

2 - 3

1

PLAYABILITY CHECK

For sets which are compatible with CD-RW discs

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

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

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.

2.0 SAFTETY INSTRUCTIONS

WARNING

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.

F

ATTENTION

Tous les IC et beaucoup d’autres semi-conducteurs sont sensibles aux décharges statiques (ESD). Leur longévité pourrait être considérablement écourtée par le fait qu’aucune précaution n’est prise à leur manipulation. Lors de réparations, s’assurer de bien être relié au même potentiel que la masse de l’appareil et enfiler 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.

2-4

ESD

D

WARNUNG

Alle ICs und viele andere Halbleiter sind empfindlich gegenüber elektrostatischen Entladungen (ESD). Unsorgfältige Behandlung im Reparaturfall kan die Lebensdauer drastisch reduzieren. Veranlassen Sie, dass Sie im Reparaturfall über ein Pulsarmband mit Widerstand verbunden sind mit dem gleichen Potential wie die Masse des Gerätes. Bauteile und Hilfsmittel auch auf dieses gleiche Potential halten.

WAARSCHUWING

NL

Alle IC’s en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. 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.

I

AVVERTIMENTO

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 riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell’apparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale.

GB

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

NL

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast.

F

Les normes de sécurité exigent que l’appareil soit remis à l’état d’origine et que soient utiliséés les piéces de rechange identiques à celles spécifiées.

D

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Original zustand des Geräts darf nicht verändert werden; für Reparaturen sind Original-Ersatzteile zu verwenden.

I

Le norme di sicurezza esigono che l’apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati.

“Pour votre sécurité, ces documents doivent être utilisés par des spécialistes agréés, seuls habilités à réparer votre appareil en panne”.

CLASS 1

LASER PRODUCT

GB

Warning !

Invisible laser radiation when open. Avoid direct exposure to beam.

S

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren är urkopplad. Betrakta ej strålen.

Varoitus !

SF

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina näkymättömälle laserisäteilylle. Älä katso säteeseen!

3122 110 03420

"After servicing and before returning set to customer perform a

DK Advarse !

leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist. The leakage current must not exceed 0.5mA."

Caution: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er ude af funktion. Undgå udsaettelse for stråling.

2-5

2.1 ESD PROTECTION

Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflaser

maybereceived.

PREPARATIONOFSERVICING

PickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.

Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,

itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to

protectthelaserdiodeform

Andalso,theLSIandICaresameasabove.

Solderingiron withgroundwire orceramictype

damagebystaticelectricity.

Groundconductive wriststrapforbody.

Conductivemat

1M

Thegroundresistance betweenthegroundline andthegroundislessthan10

SAFTY NOTICE

LEAKAGE CURRENT CHECK

2-6

SAFTY PRECAUTIONS

Plug the AC line cord directly into a 120V AC outlet (do not use an isolation transformer for this check). Use an AC voltmeter, having 5000 per volt or more sensitivity. Connect a 1500 10W resistor,paralleled by a 0.15uF 150V AC capacitor between a knomn good earth ground (water pipe, conduit, etc.) and all exposed metal parts of cabinet (antennas, handle bracket, metal cabinet screwheads, metal overlays, control shafts, etc.).

READING SHOULD NOT EXCEED 0.3V

DVD VIDEO PLAYER

Measure the AC voltage across the 1500 resistor. The test must be conducted with the AC switch on and then repeated with the AC switch off. The AC voltage indicated by the meter may not exceed 0.3V.A reading exceeding 0.3V indicates that a dangerous potential exists, the fault must be located and corrected. Repeat the above test with the DVD VIDEO PLAYER power plug reversed. NEVER RETURN A DVD VIDEO PLAYER TO THE CUSTOMER WITHOUT TAKING NECESSARY CORRECTIVE ACTION.

AC VOLTMETER

(5000 per volt or more sensitivity)

Good earth ground

1500 10W

such as a water pipe, conduit, etc.

AC OUTLET

0.15uF 150V AC

Test all exposed metal. Voltmeter Hook-up for Leakage Current Check

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

2-7

2.2 SAFETY INSTRUCTIONS

Battery Handling Guideline

Since the battery is packed in soft package, to ensure its better performance, it’s very important to carefully handle the battery

2.2.1 Soft Aluminium foil The soft aluminum packing foil is very easily damaged by sharp edge parts such as Ni-tabs, pins and needles.

• Don’t strike battery with any sharp edge parts

• Trim your nail or wear glove before taking battery

• Clean worktable to make sure no any sharp particle

2.2.2 Sealed edge Sealing edge is very flimsy

• Don’t bend or fold sealing edge

2.2.3 Folding edge

The folding edge is form in battery process and passed all hermetic test.

• Don’t open or deform folding edge

2.2.4 Tabs The battery tabs are not so stubborn especially for aluminum tab.

• Don’t bend tab

2.2.5 Mechanical shock

• Don’t Fall, hit, bend battery body

2.2.6 Short

Short terminals of battery is strictly prohibited, it may damage battery.

Caution: Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type.

Disassemble diagrams:

!

Notes: don t touch the power board when the machine is power on, pls unplug the power cord then disassemble the machine to avoid shock!!

1-C

1-D

2.6X8PB screws on

two

2.6X8PBscrewson

Notes: don't touch the power board when the machine is power on, pls unplug the power cord then disassemble the machine to avoid shock!

1、Disassemble the front cabinet

1-A 1-B

disassemble the two 3*8 KB screws on two side cabinet

unplug the 3pin and 10pin cable which connecting to MP3-LINK BD and display BD,remove the front cabinet

disassemble the two 3*25 PB screws on bottom cabinet

disassemble the nine disply BD and get out

disassemble the

LINKBDandgetoutthe

open the front cabinet



2、Disassemble the top cabinet and Main BD

p

disassemble the two

38

unplug the 2pin cable

,

2-A 2-B 2-C

disassemble the two 3*8

PBscrewsons‐video

PBscrewsons‐videoport

ort

disassemble the three



3*8PBscrewsonbottom

3*8PBscrewsonbottom cabinet

unplug the 2pin cable between Main BD and

between Main BD and power BD

45°put up top cabinet and Main BD

unplug the FM-ANT

unplug the FM-ANT line and apart it from bottom cabinet

1

2

disassemble the five

2.6X8PB screws on Main BD

unplug the open-close cable,6pin cable to CD deck,FFC cable on CD

take out the Main BD

deck

2-E disassemble CD deck 2-F disassemble CD door2-D disassemble Main BD

disassemble the four 2.6X8PWAscrews

onCDdeckandtakeoutit

take out the spring first ,then remove the fastener on two CD door sides and remove the CD door

3、Disassemble the power BD

pg p

disassemble the two 3*10 PWB screws on power BD

unplug the power cord and take out the PCB

SET BLOCK DIAGRAM

3 - 1

SET WIRING DIAGRAM

4 - 1 4- 1

CIRCUIT DIAGRAM - DISPLAY+MAIN+TUNER+LINE IN board PART 1

R3381KR338

R348

6.8K

R346

4.7K

R3391KR339

R378

R378 100R

100R

R347

C333

4.7K

102P

1K

C326

0.1uF

ZD306

6V8

C334

102P

RAR-CH

CDR-CH

CD/L

CD/R

JK601

Line Jack

R353

4.7K

R349

CN302CN302

AUX-RIN GND

AUX-LIN

7314_SDA

7314_SCL

C3651UC365

1U

C3661UC366

1U

+7.5V

R345

6.8K

CDL-CH

R351

4.7K

6.8K

R352

6.8K

CDR-CH

R602NCR602

C602

CN601CN601

220P

223P

C604

C605

223P

C6011UC601

C6071UC607

L601

1U

10.5T

10.5T L603

L603

10.5T

10.5T L602

L602

10.5T

1U

R601

R603

33K

220P

NC

TO CN302

33K

R606NCR606

AUX-RIN

GND

AUX-LIN

C603

C603 220P

220P

NC

TO CN306

LINE BD

R337

R337 47K

47K

C325

100uF/16V

C3361UC336

C335

C3481UC348

C3421UC342

C3431UC343

C339

C3461UC346

C338

C338 1500P

1500P

C337

1500P

R336

R336 47K

47K

0.1uF

5 - 15 - 1

MAIN SIGNAL

AUX SIGNAL RADIO SIGNAL

CD SIGNAL

R325

C320NCC320

NC

R326

4.7K

R334

10K

C349

22uF/16V

R327

4.7K

C323NCC323

NC

R335

10K

R325

10K

S9014

Q311

A9014

C3141UC314

Q312

C3171UC317

1U

R3281KR328

1K

C318

R3291KR329

C318 152M

152M

C316

100uF/10V

C319

152M

R33082R330

R31882R318

100uF/10V

82

C312

220uF/16V

100uF/10V

1K

R3191KR319

1K

R3201KR320

1K

1U

OUT-L

NC

C367NCC367

C340NCC340

IC302

SC7314

C327

C324

0.1uF

C3211UC321

1U

C3221UC322

C3471UC347

C328

C329

C330

C331

C3321UC332

C3411UC341

1U

0.12uF

1U

R342

5.6K

R340

5.6K

22uF/16V

CDL-CH

RAL-CH

OUT-L

OUT-R

MUTE

CD-MUTE

OUT-R

D302

1N4148

C313

IC301

UTC8227

0.015uF

C309

0.015uF

C307

C311

C315

100uF/16V

R317

R316

2.2

L304

C306

470uF/16V

L304

4R7UH/2A

2.2

SPEAKER OUTPUT

TO MAIN PWB CN304

C302

C308

470uF/16V

C302

223P

C301

223P

L306

4R7UH/2A

L305

4R7UH/2A

+

L.SP

-

8 OHM 2W

R.SP

+

8 OHM 2W

+12V

+7.5V

C396

0.1UF

R788

C310

R311

2.2 1/2W

Q306

8550

R313

2.2K

330U/16V

Q307

9014C

C310

C304

1000uF/16V

C351

0.1UF

+12V

GND

CN303CN303

TO CN1102

R3501KR350

LED_EN

IC102

47uF/16V

D703

1N5819

IN

C107

0.1U

IC102

1117/3.3

R309

R309 22K

22K

GND

Q305

B772

OUT

R305

33K

R306

1.5K

Q304

9014C

GND

C106

0.1uF

D301

D301 IN4001

IN4001

C120

TU+3.3V

100uF/16V

C394

C394 223

223

+7.5V

IC402

OUT

LS7805

IC705

GND

OUT

C729

C709

0.1uF

C707

47uF/50V

563M

MCU_3V3

C728

100uF/16V

VCC+5V

IN

C305A

C724

100uF/16V

IN

C769

IN

C725

0.1U

ESD

1117/3.3V

R741

100

RA-VDD

CDVCC

CD-EN

R310

10K

10uF/16V

C386

C108

MCU_3V3

RA-VDD

TUNER-EN

Q703

8550B/C

R107

100UH

R308

10K

R760

4.7K

MAIN_EN

C385

C156

0.1uF

GND

R321

4.7K

C368

100uF/16V

10uF/16V

R307

Q302

8550B/C

22K

R394

R304

33K

2.2K

Q303

9014C

R303

R332

2.2K

Q308

9014

+7.5V

R392

2.2 1/2W

33K

C350

1000uF/10V

C303

MAIN-EN

Q309

8550B/C

47uF/16V

C402

0.1uF

R315

4.7K

C305

10uF/16V

1K

Q310

D882

R312

680

ZD302

8.2V

R314

22K

5 - 2 5 - 2

CIRCUIT DIAGRAM - DISPLAY+MAIN+TUNER+LINE IN board PART 2

C797

C797 473P

473P

Q901

B764

+5V

C919

C901

C920

C923

MOTOSPMOTO

C958

C958 10P

10P

C923

104

102

R940

10K

SA9258

IC901

SP

R912

15K

R914

15K

R922

15K

R924

15K

R926

68K

R928

68K

C929

C931

C936

220P

C917

R901

47UF

22R

Q902

C961

Q902

8550

R937

10R

C963

104

R944

56K

R943

56K

R942

56K

R941

56K

C955

C955 104

104

C962

10P

RFGND

C965

C965 104

104

R948

R950NCR950

47K

NC

C939

C939 220P

220P

LD MON

RFM

REF RFG

C906

C906 470UF

470UF

C932

C932 473P

473P

GND

SL

MOTOSLMOTO

R911

10K

R913

10K

R921

10K

R923

10K

R925

10K

R927

10K

C942

C945

220P

R951NCR951

R952

NC

47K

VDD

RFC

LDON

BST

SA9614

RFRC

PD

GND

C972

C970

RFI

RFO

C971

EQIN

IC903IC903

RFAC

R960

2.2K

18P

R956NCR956 NC

R957NCR957

104P

103P

C928

C928 220P

220P

NC

R9591MR959

1M

TO CD DEDK

FCSTR+ TR-

FCS+ PD GND LD GND F C B A D E VCC VC

CN902CN902

C957

C957 104

104

C968

104

220UF

9258-MUTE

C966

10P

SW901

SLED_SW

C910

C911

47UF

C946

C946 104

104

C959

C959 10P

10P

C930

C930 220P

220P

C991

RFGND

C915

C909

3.3UF

104

1UF

C975

C975 473P

473P

C935

C935 220P

220P

R9581KR958

1K

C916

C916 100UF

100UF

C922

R916

R929

R929 100K

100K

+5V

X901

8.4672M

R902NCR902

R916

R917

R918

R919

NC

C904

47U

R935

R935 330

330

C952

22P

9258-MUTE

10K

R555ED

8.2K

8.2K 22k

22k

10K

DGND

10K

R555CD

+5V

R966

L-OUT

R-OUT

R904

R9541KR954

PAGND

C1 104C1104

1K

+5V

R904

4.7K

C921

102

C974

3900P

PAGND

+5V

C914

C914 220UF

220UF

R965

CD-MUTE

10K

D2

R11KR1 1K

IN4148D2IN4148

C2 104C2104

PAGNDPAGND

+5V

C978

104

C992

104

CD-DATA

26UH

L901

L-OUT R-OUT

PAGND

CD-DATA

CD-CLOCK

CD-MUTE

VCC

GND

VCC GND L-OUT

R-OUT

PGND CD-DATA CD-CLOCK CD-MUTE

CN903CN903

TO CN305

VCC

GND

CD PWB

C913

C913 47UF

47UF

R955

R955 10K

10K

D904

1N4148

C993

R909

103

8.2K

C933

104

C902

C902 10UF

10UF

C940

C940 222

222

IC902

SC9640

33K

R947

R945

33K

R939

100K

R962

R962 100

100

D906NCD906

D905NCD905

NC

C943

C943 222

222

R915

8.2K

C903

C903 10UF

10UF

C907

C907 10UF

10UF

C995

103

PAGND

C912

C912 47U

47U

C908

C908 47UF

47UF

CN901NCCN901

C967

NC

104

R910

4.7K

R961

10K

CD-COLCK

C964

104P

C948

104

PAGND

R934

Q903

9014C

CN904

DOOR SW

C937

102

10R

R949

10K

R905

8.2K

R906

8.2K

8.2K R9300RR930

R907

R908

104

+5V

C941

C938

C918

47UF

C938 220P

220P

R946

C969

220P

104

150K

C944

C944 220P

220P

R953

2.2R

0R

5.6K

2.7K

C926

C927

R920

C926

105

104

2.2R

R931

22K

C947

104

D907

1N4148

C934

C924

C925

332

R903NCR903

C953

C953 104P

104P

R933

R933 68K

68K

C951

C951 22P

22P

C950

C950 223P

223P

NC

D908

1N4148

C905

104

47U

C949

20P

R9321KR932

1K

C954

C954 472P

472P

5 - 3 5 - 3

CIRCUIT DIAGRAM - DISPLAY+MAIN+TUNER+LINE IN board PART 3

LED[0..20]

LED1

LED2

LED3

IC701

LED4

LED5

LED6

LED7

ET6202

51K

R713

GND

LED_CLK

LED_STB

LED_RESET

LED_CLK

LED_STB

GND

TU_RESET

TU_SDA

TU_SCL

TU_RESET

POWER_EN

LED13

LED14

100

R702

LED_CLK

LED_RESET

TU_SDA

TU_SCL

CD_EN

TU_EN

R701

100

LED703LED703

LED6

100

R714

C708

LED_STB

C702

C703

C701

GND

C731

GND

1000P

LED7

R706

R716

R715

C732

FM/ANT

KEY1

D103

BAV99

GND

C109

C714

30P

6.8K

R725

R724

SW713A

R724

SW711

SPK+SPK+

3.3K

R727

PLAY/PAUSE

R727

STOP

SW712A

R729

102P

R729 33K

33K

MCU_3V3

R868

R869

SW710

SW708

SPK-SPK-

REPEATREPEAT

SW709

DBBDBB

22K

15k

10K

6.8K

248-M12703-100

D702

Q702

R741

8050

1N4148

R4NCR4 NC

Y1

32.768KHZY132.768KHZ

C2 22PC222P

IC101

Si7404

R1061KR106

1K

C112

C112 102P

102P

C104

C116

220P

100/100

104PC3104P

C117

C3

220P

R110

1N4148

C114

C114 C115

C115

R745

10K

7.5K

100

MCD_3V3

C102

104P

C1

22PC122P

R1

10RR110R

C113

100

22P

R108

68P

C120

R111

2.2

LED701LED701

Q701

8050

R730

10K

C118

8200P

10K

LED_EN

GND

R753

10K

GND

RAL-CH RAR-CH

C119

8200P

TU+3.3V

R105

10K

TU_SDA TU_SCL

TU_RST

MCU_3V3

GND

C705

0.1uF

0.1uF C713

C713

GND

10K

47P

10K

47P

10K

47P

1000P

C730

R748

10K

R746

10K

R750

10K

R758

330K

330K R760

R760

10K

R759

10K

R751

10K

0.1uF

100uF/16V

R762

100

R761

100

LED12

VCC+5V

MCU_3V3

1000P

LED11

LED1

LED2

MCU_3V3

MAIN_EN

MCU_3V3

LED3

LED8

LED10

LED4

LED9

LED5

LED10

LED8

LED11

LED9

LED12

LED13

LED14

TU_EN

R957

CD_DATA

R810

R836

22K

33K

VOL-

F.R

SW810A

SW811A

KEY2

R838

R833

SW815A

SOURCE

R833

R858

3.3K

6.8K

PRESET-

SW814A

R835

15K

10K

DBB

PRESET+

SW812A

SW813A

R8590RR859

POWER

SW816A

0R

R802

C804

102P

33K

248-M12705-100

MCU_3V3

C726

47U

C727 0.1UC727 0.1U

IC703

M24C02

REMOTE/AC_DET

R749

4K7

*

KEY2

KEY1

15P

X701

32.768KHz

JW9260RJW926

R742

330K

MCU_3V3

0R

C718

R733

R733 R734

R734

R732

R732 270K

270K

IC702

SC9309

D302

1n4148

2.2K

R956

R861

1K8

CD_EN

CD_CLK

POWER_EN

R860

R860 1K8

1K8

7314_SCL

7314_SDA

MUTE

1n4148

R743

R743 330K

330K

15P

C712

15P

C715

MCU_3V3

C717

220P

22P

330K

330K 330K

330K

103P

C719

Q202

9014

R740

10K

D301

1N4148

1M

103P

R7361MR736

C720

330K

R855

330K

R854

C721

3.3UF

R737

R738

47K

10K

100K

R739

REMOTE

P801

FM-6038TM2-5A

L813L813

MCU_3V3

IR

C722

100UF

R21KR2

1K

R198

100R

C204

104

8765

VCC

R722

4K7

WC

*

R7441KR744

SCL SDA

1K

C723

104P

MCU_3V3

TU_SCL

TU_SDA

MCU_3V3

E0 E1 E2

VSS

4321

5 - 4

LAYOUT DIAGRAM - DISPLAY+MAIN+TUNER+LINE IN board

5 - 4

CIRCUIT DIAGRAM - POWER BOARD

D1104

12

3 4

12

3 4

D1104

IN4007

D1103

IN4007

X1102

0.22/275V

RV1101

471K

R1103

R1104

X1101

750K

0.22/275V

D1101 IN4007D1101 IN4007

IN4007

D1102

LF1104

54mH

R1101

750K

R1102

750K

NTC1101 5D-9NTC11015D-9

54mH

LF1101

1 2

6 - 1 6 - 1

C1103

68UF/450V

+

103

FR107

D1108

C1111

R1B2MR1B

R1A2MR1A

EC1101

12

+

12

2M

330P

47UF/25

12

C1112

C1101

222/1KV

330P

12

C1113

100K

R1119

IC1101

1 2 3 4 5

LC1209

10K

C1104

R1132

12

R1118

8 7 6

104

ZD1101

U1101

100K

D1109

FR107

7V5

PC817B

R1122

R1123

1

0R

R1134

1 R1/2W

PT1101

D1003

1

5 6

3

2

PC817B1PC817B1

4

R1108

3

C1105

2.2K

10

8

3

1

R1117

NC

D1113

D1110

SR3100

EC1105

1000UF/25V

1UF

12

U1102

U1102 TL431

TL431

2

R1105

C1119

47K

NC

R1110

12

+

10K

2.7K

R1107

+12V

EC1106

R23A

NC

+

EC1106

1000UF/25V

+

NC

R23B

CY1101

1 2

0.0022UF/400V

CY1102

1 2

0.0022UF/400V

3uH

L1103

1 2

3 4

LF1103

54mH

C1115

0.1uF

C1116

0.01uF

1000UF/25V

+

EC1107

1

2

CN1102CN1102

GND

+12V

1

AC~IN

AC1101AC1101

100R

R1106

2

FS1101

T1.6A L250V

R1106

+12V

EC1108

470UF/25

LAYOUT DIAGRAM - POWER BOARD

6 - 2 6 - 2

EXPLODED VIEW DIAGRAM

7 - 1 7 - 1

SPK

PCBA3

PCBA1

PCBA4

PCBA5

Philips MC-127 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual