Nad AV 316 Service Manual

Page 1

SERVICE MANUAL

SERVICE SAFETY PRECAUTIONS (UL)

1 Use exacnspmmem punximcnnna lncannns was fly
2 Remrv eaa mass 1., angnsl postman and (9mm pmzedwe savers
a 592m mum to nusmmev. m w max hazerd use either mothod Am a»

A. Leakage \asl mm,
L Unphlg me AC cw; (um Dewar man DN
2. Carmen m Weed m ngh Voltage msumm Yeucr w bum pmngfi ofthe AC pmy
3. row» other bad m a exposed moral sans
4 smpmm measurement mus) m: o 3-5» Meychms

a Leakage me, vae
1. Hug um! dlresbymlo me AG 5mm: do um um [zulalicn xransmmvov
2 Connect me km a! ma Leakage owrem Tmev m esrlh grows.

2:. mm owe! \eud man exposed «as p315
4 Len-kaga measmemsn: mus! be was mar 05 m mumps

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AV316

AMPLIFIER

Page 2

SERVICE SAFETY PRECAUTIONS

1. Use exam replacement pan for crillcal locations. marked -A" on parts list,
2, Return lead dress lo mlginal position, and re-inslall protective covers.
3. Belora returning to customer, (est Iorshock hazard; use either methnd A m B:
A. Leakage lest, cold":
1. Unplug AC cord. tum power Switch ON.
2 Connect one lead ol High Voltage lnsulatiun Testerto both prongs at A0 plug.
3. Touch other lead to all exposed melal pans,
A. Impedance measurement must be 0.3 . 5.0 Megchms.
B. Leakage test, ive'
1. Plug Unit direcfly imo AC outlet; do not use isolation Iranslarmer.
2, Connect one lead 0| Leakage Current Teslerla earth ground.
3. Touch other lead to all exposed metal parts.
4. Leakage measurement musl be less than 0.5 milllamps.

ksnlnclng Ihe mses
Thls symbo| located Mann: iuss
indmams tltnr lhl: (us: used is last
mating type. Fm mntmusa pmscuon flgunm fire. ttuzsnl,
mum wim Sm Iypc (use. For Ills: mung refer ID me
mstktng adjacent to Ill: symboL

_I:D_Ce symbol: imllqll: qua Ic fusible "flux:
as: a rapidb,

m: ml: mutation ansnsnts n'ullliscr qua tins fusiblcs it;
msme type.

C: dart-liar 55!. manque la qn lo pmmnl symbol an wpmc.
Foremunllui pmustion against fire humus, mph/w with
same type (use.

For fusc rating Icfcx ID ms mmrking adjawnl la the symbol.

CmuilNc. PmNa. Dcscnplinn
F901 252le sA-uu'r-237, Primary
F907. 252075 3.15A-SEEAX. Primary
F903 252075 LSA»SE-EAK,annry
F92! 152155; lArUlJT-237, Sewndnry
252ml) lA~SE>EAK. stndary <<>
F922 252156Y lA-UL/T437. Secondary
2521370 lA-SE»EAK.Sewndary <(>

5. To tnlttuttts the unit
This dcvloe unvlnys n mluvpmceswrlfl pnlonn yttrium
tunsunm and uptnnimls.
ir imerfcmm gamma! by an exwmlal ptmr Supvly. radio
wnvs. or mher elecvical smlwe results in accident Whldl
muses 13w specificd upumiuns and tmwtions In opentz
llbnm'mally.
Tn wrfoml a mat. please folluw |he pmcbdllm balow.
1. Press tnsl hold down the CD bum. than pms Lh:
POWER human.
7. Take \hc powsr supply cold {mm lite sockalule
"TEST is dlsvluyed.
3, Mia Clair" is displaysu, ths plow memory nut each
mode slated in than Inemmy, such m surmunlsms
tnut 1.:de will Iclnm lo the facmq suungs.

6. SaIely-clieck ant
(Only USA. model)

Ahcr DeflecLlng Ihe original service probcm. perform the
follnwmg saley check bclorc mating the 5% lo the
mam-nu.

Connect the insulamigrlulmm Ital/t1 bcrwwn the plug or
powu'supply cord and tits scmw on I: back pancL
Specincmimls : 3,3Mnhrn t 10% at 500v.

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