TX-SR803/E
SERVICE PROCEDURES
Worldwide models are equipped with a voltage selector to conform with
local power supplies. Be sure to set this switch to match the voltage of
the power supply in your area before plugging in the unit.
1. Determine the proper voltage for your area: 220-240 V or
120 V.
2. If the preset voltage is not correct for your area, insert a screw-
driver into the groove in the switch. Slide the switch all the way
to the right (120 V) or to the left (220-240 V), whichever is
appropriate.
4.Setting the Voltage selector (Worldwide models
only)
1. Replacing the fuses
This symbol located near the fuses indicates that the
fuse used is fast operating type. For continued protection against
fire hazard, replace with same type fuse. For fuse rating refer to
the marking adjacent to the symbol.
Ce symbole indique que le fusible utlise est a rapide.
Pour une protection permanente, n'untiliser que fusibles de
meme type. Ce darnier est la qu le present symbol est
appse.
CIRCUIT NO.
PART NO.
DESCRIPTION
2. To initialize the unit
This device employs a microprocessor to perform various
functions and operations. If interference generated by an external
power supply, radio wave, or other electrical source results in
accident which causes the specified operations and functions to
operate abnormally.
To perform a result, please follow the procedure below.
1.Press and hold down the VIDEO-1 button, then press the
STANDBY button.
2.After "Clear" is displayed, the preset memory and each
mode stored in the memory, such as surround, are
initialized and will return to the factory setting.
5. Changing the AM band step
With the exception of the worldwide models, a tuning step selector
switch is not provided. When you change the band step, change
the parts as shown below.
To 10kHz
To 9kHz
R714
Open
10 k
Note: <D>:120V model only
<P>: European model only
<Q/R/K>: 230V model only
<T>:Worldwide model only
<A>: Australian model only
3. Safety-check out
(U.S.A. model only)
After correcting the original service problem, perform the
following safety check before releasing the set to the customer.
Leakage Current Check
Measure leakage current to a known earth ground(water pipe,
conduit, etc.) by connecting a leakage current tester between
the earth ground and exposed metal parts of the appliance
(input/output terminals, screwheads,metal overlays, etc.).
TX-SR703/E
F6901,F6902
252301GR
12A-TUL-250V,Fuse
F901
252079GR
6.3A-SE-EAK,Fuse <P/A/Q/R/K>
252330GR
10A-UL/T-233, Fuse <D/C>
F902
252079GR
6.3A-SE-EAK Fuse <T>
F903
252075GR
2.5A-SE-EAK,Fuse <P/A/Q/R/K>
252326GR
5A-UL/T-233,Fuse <D/C>
F931,F932
252073GR
1.6A-SE-EAK,Fuse
F951,F952
252079GR
6.3A-SE-EAK,Fuse
