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Caracteristiques,circuit adjusment,notes on schematis diagram,it's a good service manual,to live well,thanks.
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Service Manual in good quality, with all of the pages.
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Very usrfull for repaur, great quality copy. includes complete parts list and schematics
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Good quality Service Manual, availability of components includes disassembly, electronic adjustments. Includes a full list of details and diagrams. Contains 58 pages.
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y'm hapy for this shoping . Estoy feliz por esta compra , ahora puedo reparar mi equipo de audio que AMO . And very good price for this manual . Thank yuo .
TROUBLE SHOOTING B. Front panel buttons
Front panel buttons
Check U34 and any components nearby for bad soldering, open/short circuit, damage, etc.
Remove F/W (U25) and replace it with a working No F/W, check if the machine will function normally. Yes Remove the top cover, remove the panel; check if there�s any signal output on pin15, 16 of U1 on the front board(also check for bad soldering)
Replace main board
Check SW1~SW7 and any components nearby for bad soldering, open/short circuit, damage, etc.
Check the 12pin cable that connects the front board No with the main board, check if the cable is properly connected. Yes Check the 12pin cable that connects the front board with the main board, check if the cable is properly connected.
Replace front board
Use the oscillator or multimeter to check if the voltage between p10 No and GND of JP6 on the main board �27V and also check if the voltage between pin2 and GND 5V
Replace power board
Yes OK
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