Integra DTR-7.6 Series Service Manual page 6

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SERVICE PROCEDURES
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.
F6901,F6902 252301GR
F901 252079GR
252330GR
F903 252075GR
252326GR
F931,F932 252073GR
F951,F952 252079GR
Note: <D>:120V model only
2. To initialize the unit
This device employs a microprocessor to perform various
functions and operations. If interference generated by an external
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L 13942296513
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.
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.).
4. 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.
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To 10kHz
R714 Open
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DESCRIPTION
12A-TUL-250V,Fuse
6.3A-SE-EAK,Fuse <A>
10A-UL/T-233,Fuse <D>
2.5A-SE-EAK,Fuse <A>
5A-UL/T-233,Fuse <D>
1.6A-SE-EAK,Fuse
6.3A-SE-EAK,Fuse
<A>: Australian model only
To 9kHz
10 k
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DTR-7.6
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