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There are currently no product reviews.
 ;
Great PDF easy to read good info needed for replacment of belts and assembly and specs.
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complete and unabridged very good quality
easy to download.
recieved in two days.
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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
FRONTPANELFACILITIES
T U N I N GI
When selecti
pointer of th possible.
For an FM way. Precisi
that the dial
TUNING
Push once to switch on the power, once again to turn
This knob is the tunir'g
it off. P H O N E SJ A C K S Thesephonesjacks for stereoheadset(s). The two jacks (A, B) are availablefor connection with two stereoheadsets. Turn this knob to the right to accentuate basstones, to the left to reduce them. Set the knob at its center position for flat response.
TONE
INDICATOR
TONE aa s
COLOR 92
TREBLE
Use of this knob is similar to that of the BASS knob.
AM
55
6ct
70
REVERB
This is the reverberation adjustment knob. Turn it to the right to increasereverberation,to the left to reduce it.
FM STEREo
AM
F IL T E R L O W : Use this filter to cut out low-frequency ference,such as motor rumbling or hum. H I G H : Use this filter to cut out high-frequency ference, such as that from fluorescent FM MUTING This switch is used to suppressmuch noise between FM stations when tuning. In a fringe area, however, this switch should be kept off because it may suppressthe desiredstation signalat the sametime.
OFF PO\A/ER
ON
6e
PH
BALANCE
Usedto adju right chan
channel sou
LOUDNESS
At reduced volume the ear's sensitivity to extremely low and high frequenciesis reduced. This switch compensates for that phenomenon by emphasizingthese frequencies. At normal or high volumes this switch should be kept
off.
MODE SIIVI Controls the
unit as fol
T A P EM O N B J A C K
This jack is for connecting to the LINE OUT terminals of a tape deck or tape recorder. It is designedto accept a 3-P type plug. TAPE REC B JACK For connecting to the LINE IN terminals of a tape deck (recorder). Allows recording of another program source or tape for editing.
REV: ST: LT:
S
Right speak f,eft
tc
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