Philips AZ 1837 Service Manual Philips
Philips AZ 1837 Service Manual Philips
Philips AZ 1837 Service Manual Philips
TABLE OF CONTENTS
Page
Specications .......................................................................... 1
Software Version Checking ..................................................... 2
Set Block Diagram ................................................................3-1
Set Wiring Diagram ..............................................................3-2
Power Board ............................................................................4
VR Board ................................................................................. 5
LCD Board ..............................................................................6
Main & USB Jack & Rect. Board ............................................. 7
Set Mechanical Exploded View & Parts List ........................... 8
Published by LX 1231 Service Audio Printed in The Netherlands Subject to modication 3141 785 34571
Version 1.1
1-1
SPECIFICATIONS
Supported formats:
MP3 bit rate (data rate): 32-320 Kbps and variable bit rate
WMA v9 or earlier
Directory nesting up to a maximum of 8 levels
Number of albums/ folders: maximum 99
Number of tracks/titles: maximum 999
ID3 tag v2.0 or later
File name in Unicode UTF8 (maximum length: 128 bytes)
Unsupported formats:
Empty albums: an empty album is an album that does not contain MP3/
1-2
PCBS LOCATION
CD DOOR
USB PCB
RIGHT CABINET
POWER PCB
TOP CABINET
CD MECHANISM DA11B3VZSS (SANYO)
VR PCB
LCD PCB
MAIN PCB
VERSION VARIATIONS
AZ1837
Type / Version
POWER BOARD
MAIN BOARD
VR BOARD
RECT. BOARD
LCD BOARD
4-1 4-1
VR BOARD-CIRCUIT DIAGRAM
5-2 5-2
86%-$&.
7-9
7-9
17 996510030534 VOL-PCB-BRACKET
18 996510031038 VR PCB
19 996510030527 VOL. DECO RING W/PLATE
2 996510031048 CD DOOR /55
2 996510032562 CD DOOR /73
ELECTRICAL PARTSLIST
MAIN BOARD ASSEMBLY
ELECTRICAL PARTSLIST
POWER BOARD ASSEMBLY
TABLE OF CONTENTS
Page
Version Variation..................................................................... 1-2
Technical specification ..................................................1-3..1-14
Safety instruction.................................................................... 2-1
ESD protection........................................................................2-2
Circuit diagram.................................................................5-1..5-3
Layout diagram.................................................................6-1..6-2
Version 1.0
2-1
NL WAARSCHUWING
GB WARNING ESD
Alle ICs en vele andere halfgeleiders zijn
All ICs and many other semi-conductors are gevoelig voor electrostatische ontladingen
susceptible to electrostatic discharges (ESD). (ESD).
Careless handling during repair can reduce life Onzorgvuldig behandelen tijdens reparatie kan
drastically. de levensduur drastisch doen verminderen.
When repairing, make sure that you are Zorg ervoor dat u tijdens reparatie via een
connected with the same potential as the mass polsband met weerstand verbonden bent met
of the set via a wrist wrap with resistance. hetzelfde potentiaal als de massa van het
Keep components and tools also at this apparaat.
potential. Houd componenten en hulpmiddelen ook op
ditzelfde potentiaal.
F ATTENTION
I AVVERTIMENTO
D WARNUNG
Tous les IC et beaucoup dautres
semi-conducteurs sont sensibles aux Tutti IC e parecchi semi-conduttori sono
dcharges statiques (ESD). Alle ICs und viele andere Halbleiter sind sensibili alle scariche statiche (ESD).
Leur longvit pourrait tre considrablement empfindlich gegenber elektrostatischen La loro longevit potrebbe essere fortemente
courte par le fait quaucune prcaution nest Entladungen (ESD). ridatta in caso di non osservazione della pi
prise leur manipulation. Unsorgfltige Behandlung im Reparaturfall kan grande cauzione alla loro manipolazione.
Lors de rparations, sassurer de bien tre reli die Lebensdauer drastisch reduzieren. Durante le riparazioni occorre quindi essere
au mme potentiel que la masse de lappareil et Veranlassen Sie, dass Sie im Reparaturfall ber collegato allo stesso potenziale che quello della
enfiler le bracelet serti dune rsistance de ein Pulsarmband mit Widerstand verbunden massa dellapparecchio tramite un braccialetto
scurit. sind mit dem gleichen Potential wie die Masse a resistenza.
Veiller ce que les composants ainsi que les des Gertes. Assicurarsi che i componenti e anche gli utensili
outils que lon utilise soient galement ce Bauteile und Hilfsmittel auch auf dieses gleiche con quali si lavora siano anche a questo
potentiel. Potential halten. potenziale.
GB
Safety regulations require that the set be restored to its original Pour votre scurit, ces documents
condition and that parts which are identical with those specified, doivent tre utiliss par des spcia-
be used. listes agrs, seuls habilits rparer
votre appareil en panne.
NL
Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, CLASS 1
identiek aan de gespecificeerde, worden toegepast.
LASER PRODUCT
3122 110 03420
F
Les normes de scurit exigent que lappareil soit remis ltat
dorigine et que soient utiliss les pices de rechange identiques
celles spcifies.
GB Warning !
Invisible laser radiation when open.
Avoid direct exposure to beam.
D
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu S Varning !
beachten. Der Original zustand des Gerts darf nicht verndert werden;
fr Reparaturen sind Original-Ersatzteile zu verwenden. Osynlig laserstrlning nr apparaten r ppnad och sprren
r urkopplad. Betrakta ej strlen.
SF Varoitus !
I
Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
Le norme di sicurezza esigono che lapparecchio venga rimesso nkymttmlle laseristeilylle. l katso steeseen!
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.
DK Advarse !
"After servicing and before returning set to customer perform a
leakage current measurement test from all exposed metal parts to Usynlig laserstrling ved bning nr sikkerhedsafbrydere er
earth ground to assure no shock hazard exist. The leakage current ude af funktion. Undg udsaettelse for strling.
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.
2-2
Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflaser
maybereceived.
PREPARATIONOFSERVICING
PickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.
Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,
itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to
protectthelaserdiodeformdamagebystaticelectricity.
Andalso,theLSIandICaresameasabove.
Groundconductive
wriststrapforbody.
Solderingiron
withgroundwire
orceramictype
1M
Conductivemat
Thegroundresistance
betweenthegroundline
andthegroundislessthan10
2-3
SAFTY NOTICE
SAFTY PRECAUTIONS
Plug the AC line cord directly into a 120V AC outlet (do Measure the AC voltage across the 1500 resistor.
not use an isolation transformer for this check). Use an The test must be conducted with the AC switch on and
AC voltmeter, having 5000 per volt or more sensitivity. then repeated with the AC switch off. The AC voltage
Connect a 1500 10W resistor,paralleled by a 0.15uF indicated by the meter may not exceed 0.3V.A reading
150V AC capacitor between a knomn good earth ground exceeding 0.3V indicates that a dangerous potential
(water pipe, conduit, etc.) and all exposed metal parts of exists, the fault must be located and corrected.
cabinet (antennas, handle bracket, metal cabinet Repeat the above test with the DVD VIDEO PLAYER
screwheads, metal overlays, control shafts, etc.). power plug reversed.
NEVER RETURN A DVD VIDEO PLAYER TO THE
CUSTOMER WITHOUT TAKING NECESSARY
CORRECTIVE ACTION.
0.15uF 150V AC
AC OUTLET
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check
15
27
17
15
16
18
19
11
20 21