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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.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
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Wanting to repair a neighbours tape recorder I needed the necessary information, it makes it easier. Although the service manual is described as "Language : English" To my dismay I found that it is entirely written in German, a language I do not understand. At least I now have the schematics which will help of sorts. I may not use this service again due to the laguage difficulty after all when it states English you do not expect it to be entirely in another language.
ADJUSTMENT PROCEDURE
The remote control is used for entering and storing adjustments, with the exception of Cut-off adjustments, which must always be done prior to service adjustment. Perform adjustments in accordance with screen display. The display on the screen also specifies the software version as well as the approx. setting values. The adjustment sequence for the service mode is indicated below. 1. Set the Bass to maximum position, set the Treble to minimum position, press the F button followed by the volume down button on the customer controls at the front of the TV and at the same time press the "INDEX" button on the remote control, this will place the TV into the Service Mode. 2. Press the RED / GREEN buttons to step up / down through the functions. 3. 4. 5. Press the YELLOW / BLUE buttons to alter the function values. Press the STR button after each adjustment has been made to store the required values. To exit the Service Mode, press the "N" button.
NOTE: This TV also has the option of using a Memory Pack which enables you to copy the preset TV channels into the Memory Pack and then download them onto this or any other EURO-4 TV set.
TV to Memory Pack process
1. 2. Plug the memory pack into the AV1 21 pin terminal at the back of the TV and switch the TV on. Go into Service Mode as explained above. The screen will show :Program External>>TV 3. Press the BLUE button on the remote control. The screen will show :Program TV>>External 4. Press the STR button on the TV. The screen will show :Please Wait
Memory Pack to TV process
1. 2. Plug the memory pack into the AV1 21 pin terminal at the back of the TV and switch the TV on. Go into Service Mode as explained above. The screen will show :Program External>>TV 3. Press the STR button on the TV. The screen will show :Please Wait 4. All the tuning information stored inside the Memory Pack will now be transferred to the TV. This process will take 2-3 minutes to complete and when finished the screen will show :Complete
5.
All the tuning information stored inside the TV will now be transferred to the Memory Pack. This process will take 2-3 minutes to complete and when finished the screen will show :Complete
5. 6. 7.
The tuning information from the Memory Pack has now been copied into the TV. To exit from the Service Mode press the "N" button. The process has now been completed and the Memory Pack can now be removed.
ERRORS
If an error occurs while using the Memory Pack the TV will detect this and the screen will show :Error !! If this happens then press the "N" button and repeat the process that was being used. If the errors continue to occur then check the connectors between the TV and the memory pack and check the 9V battery inside the memory pack.
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