Yamaha a 520 1

Page 2

A-520

I TO SERVICE PERSONNEL

l, CrilicalComponemslniormallon, >
Componenls having specwl characterlsncs ave marked L
and must be replaced with Dan: having wecifiulions equal
to those origlnally Installed.

2. Leakage Currem Measuremem (For lzov Modal Only].
When service has been command, I! Is lmperalwe max you
verily that all exposed conductive surlaces are pmpevly
insulaled from xugply circuils.

o Mme! lmpodance should be equivalem m 500 ohm shunted
by OJSMF.

I Leakage current mun no! exceed UefimA.

. Be sure to test lar leakage wlth the AC Dlug m bolh polarinu.

I REAR PANELS

V USA. and Camdim models

ID-

WALL
OUTLET

EQUXPMENT AC LEAKAGE TESTER
UNDER TEST 0R EQUIVALENT
I: I
INSULATING TAE LE '

v General model

:3-

@ll-Llma

2m

v European model

@mm :3
aw m

o
a

3mm are

a mg 2 ,

For Service Manuals Germ
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