Denon PMA 880R Service Manual

Page 1

D E I l O I l Hi-Fi Integrated Stereo Amplifier

SERVICE MANUAL
MODEL PMA-BBDFI

INTEGRATED STEREO AMPLIFIER

CONTENTS

OPERATING INSTRUCTIONS ............................................................ £~7
REMOVAL OF EACH SECTION .........
BLOCK AND LEVEL DIAGRAM ............................................................ ,. . . 9
METHOD OF ADJUSTMENTS ....................
SEMICONDUCTORS ...........................
PRINTED WIRING BOARD ......................
PRINTED WIRING BOARD PARTS LIST ............
WIRING DIAGRAM ........................................
EXPLDDED VIEW OF CHASSIS AND CABINET ................
PARTS LIST OF EXPLODED VIEW ........................... _ T
SCHEMATIC DIAGRAM ................................................................... 21

NIPPON COLUMBIA 00.. LTD.

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oFOR

l'

RISK OF ELECTRIC SHOCK

DO NOT

CAUTION: TO REDUCE THE
DO NOT REMOVE COVER [0R
ABLE PARTS INSIDEr REFER
SERVICE PERSONNEL

The llghlning flash with arrowhead 5V

as intended m alert the user to ma presume of unlnsulatco dangerous

voltage" within the product's and

magnitude to constitute a risk cll oleclric shock to persons.

The exclamation point within an equilateral triangle or intended to alen the
user lathe presence of Imponant Operating and maintenance lsemclng)

instructions in the literature accomp

WARNING: TO REDUCE THE RISK OF FIRE 0R ELECTRIC SHOCK, DO NOT EXPOSE THIS

APPLIANCE T0 RAIN DR M

U.S.IL ll CANADA MODEL ONLY
CAUTION 7

OPEN

RISK or ELECTRIC SHOCK.
eAcKI. IIo USER seawee-
seawcme T0 QUALIFIED

mbnl, wiihin an equilateral triangle,

osuro that may be oi sulticiont

anying the appliance.

DISTURE.

. POUR LE MODELS CANADIEN UNquEnIIENT
ATTENTION

RIZED)

3 UR

DI.

rs:

YO mEvEm ELECTRIC SHOCK no NOT USE THIS iFOLA- l

OTHER OUTLET UNLESS THE BLADES CAN BE FULLY IN»
SERVED YD FflEVENY BLADE EXPOSURE.

PLUG wmt AN EXTENSION cofiDl RECEPYACLE on

POUR PREVENIR LES cNacs'ELEmluUEs NE PAS UTILISER
CETrE FICHE POMRISEE Aver: UN FRDLDNGATEUR UNE
FRISE DE couhmr uu uNE AUTRE soImE 0E COURANT,
sAllF SI ms LAME: PEUVENY m: INSEREES A mun SANS

III'IR EunowllscuE MODELLE

mrpnhutumwuno

ammo Elrouoorc GmhM
llamaslroo. 32
mo fining-n I

Elmo air mmrllorllrnponur. mix on in diam nodianunpsonleilllnp union-laun- Butt our Ychmlfldfl Vorsclmflin iilr Yaw und

u on own our sources

EN mssEn Aucqu PARYIE A DECOUVERT

MN

\m orlttlmehr

O FDR UNITED KINGDOM MODEL ONLY

Emma m: mlus PLUG:

nus uorr unflmll Iron. a rm to so in mm mpnlv.

Fll a wow mum piup lo In. lmln- load or our wlnmlnt II 113
mp lsslnl mm is mo . s ornp loo. must no rim Ina I: .no
no. wpplim u. . n-Nulw musr N01 9. mo. "any orlur rypul
plup o Ill-d 5 mp lur- mun lo lm-d emul- m In. pip. nr adaptor
or .I no or nouriprr aoara

IMPORTAIIN

In. wrroa ln me malor loud or. colour-d in lmrdlmm with In.
Iplirwrinp code:

aura: nourral

arm: Liv.

ocs - (drFan one l yum :I o

A: the colours ol lhl Immin lm n-roinslwl ollhis app-rim may not i
mlruounfl wilh lhr alum-d rrrprtlrrpr Idorlrwinp in. I-lmlnlln in
your plan. props-II .t Mm;
VM on. whip). la colour-d ewE must to. purl-mo to no [DWI-d
whim a rapilrop win in. low N or column hlnlt.
The lone whioh Ir comm: BWWN mun ho comma to in.
Ntminal union norm wnn mt Imlr l or wlwud no,

no Nov MAKE Am minimum it) me LARGER PIN MARKED
with M LErTEI z on uv mt swam el- DRCOLDURED GREEN
on cnztudmsvmow.

olsoonnoos rh. main. plop norn In. Iupply .orlrai up... "a. lrl uu.

SAFETY INSTRUCTIONS

Read instructions - All Iho safaw and operating
instruction) should be read more the apnllance is
operated.

Retain instructions a The sale! and operating
instructions should no retalnoo for lururo reference.

Heed Warnings - All warnlnos on lhe adence and
in the operating lnsiruorions should be adhered to.

Follow Inslruclions - All operating and use 'lnslrllc»
trons should be lollowed,

Wllar and Maismle - The appliance should not be
useo new water - For exampiz, near a hamlub,
washllowl, kllchen sink, laundry tub, in a we!
basement. or near a swimming Fuel] and this like.

Cart! and Stands - The appliance should be used
only with a can or stand trial is recommended try the
manufacturer.

An appliance and

can cembinarlon

should he moved

with we. Quick

stops. excessive

force, and uneven _
aurlaces may cause -'

the appliance and can combination to overturn.

Wall or Coiling Mounnnp - The appliance should be
mounted Io p wall or calling only as recommended
by Ina manulacturar.

Ventilation « rho appliance sncuio be urustod so
thu fl! locallun a! poslliorl does nol {marine WiIh (I5
proper Veniliatlom For example, rna appliance
should not he slmaled an I bed, sofa, "19.0! slmlllt
suriaco that may quclr the ventilation openings; or,
plccod In a bull n installation, such as a oooucase or
cspinal that may impede (he now or alr Iniough the
uanlilahprl oponrngs.

Hopi - The appliance should be situalad awuy lrorrl
heal sources such as radiators, heat regisrors,
stoves, or other appliances linduding arnpliliersi
lhal produce heat

Power Sources - the appliance should no connected
to a power supply only 0| Ihe type described in [he
oprratinp inslmlmuns or as marked on the no-
plilmce.

Grounding or Polarization - Precautions should bu

taken so rhsr the prounalng or polarization means at
an appliance is not deleoled.

I2.

20.

Fuwsr~Cufd Protaalion - Power-supply cords should
be 0 led so tnat may ors not likely to be walked rm
or nohod by items phced upon or against them,
paying particular allonlion to cards It plops, cow
yenionce receptacles. and the point where they exit
Irprn lhe appliance,

Cleanlnp - The appliance should be cleaned only as
recommended try lho manmacmrar.

Power Lines aAn purdoorantsnna would be located
away Irom power lines.

Olildom Antenna Grounding 7 II an outside antenna
rs connected to tho receivur. be sure IhI onronna
syslam is grounded so as to provide some Dvmac-
tion against volllge surges and builI-up static
charges. Anlcle 8|!) oi the Nanonal Eleolrlcai Code.
ANSI/NFPA 7n, nravlda! inlormarlon wilh regprd to
proper grounding of the mast and suppo g struc-
Iure, grounding III the load-in wire to an enlanna-
discharge unit. size oi grounding conflucmrs, Lona-
tion oi antennadiscnargn unit, connection to
grounding electrodes, and requirements lor rho
grounding olenrodp. 569 Figaro A.

Nonuao Period: - th power cord oi the appliance
should be unplugged Item the outlet when left
unusad [or a long period of Lime

Oblacl and Liquid Entry - Ciie should be taken so
mu obiects do not (all and liquids are not suilled inko
rha onclosuro through openings

Damage RaquIring Son/Ice - The appliance snould

os seryiceo by qualified service personnel when:

A The power-supply cord or the plug has been
damaged; or

5. Object: have ioIlan, or liquid has been spilled into
this appllznca', or

C

The appliance has been exposed to rain; or

D. Yhe cppliance docs not appear to wanna normal»
ry or axhiblts a markadchanga in ppriorrnanco; or

E. Th: applianc: has been droppdd, or [he endosure
damaged

Servicing - The user should "OI altompl to service
the appliance peyond lhal descrl bed in the operatlng
mnruclions. Ail other sewlclng should be raven-ed to
qualified service personncls

HDBS'VWd -