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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 .
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Perfect manual, perfect service. Easy reading. Thanks a lot
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Very good quality download here. Great hard to find manuals at a reasonable price.
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I had a problem with the mains transformer, I did not know the voltages on the secondary, this manual helped me to solve this problem, thanks for the manual!
DV-502/503/DVF-3050/3550
CIRCUIT DESCRIPTION
2-4 DC Motor Driver : KA8082(ICM21)
Pin No. 1 2 3 4 5 6 7 8 Pin Name GND VO1 VCTL VIN1 VIN2 SVCC PVCC VO2 I/O O I I I O Description Ground Output 1 Motor speed control Input 1 Input 2 Supply voltage (Signal) Supply voltage (Power) Output 2
GND 1 DRIVER OUT VO1 2 PRE DRIVER VCTL 3 TSD LOGIC SWITCH VIN1 4 5 VIN2 BIAS 6 SVCC 7 PVCC 8 V02
Internal Block Diagram
2-5 HEX Inverter (Single Stage) : M74HCU04(IC501)
Pin No. 1,3,5,9 11,13 2,4,6,8 10,12 7 14 Pin Name A0 to A5 Q0 to Q5 GND VCC I/O I O Description Data Inputs Data Outputs Ground Positive Supply Voltage
Truth Table A L H Q H L
2-6 Flash Memory : M29W800AT(IC401)
Pin No. 25, 24~16, 8~1 29,31,33,35 38,40,42,44 30,32,34,36 39,41,43 45 26 28 11 12 15 47 37 27,46 Pin Name A0~A18 DQ0~DQ7 DQ8~DQ14 DQ15 CE QE WE RP RY/BY BYTE VCC VSS I/O I I/O I/O I/O O Description Address Inputs Data Input/Outputs, Command Inputs Data Input/Outputs Data Input/Outputs or Address input Chip Enable Output Enable Write Enable Reset/Block Temporary Unprotect Ready/Busy/Output Byte/Word Organization Supply Voltage Ground
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