DENON Схема TU-1800DAB free download

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For U.K. model Ver. 1 SERVICE MANUAL MODEL TU-1800DAB AM-FM STEREO/DAB TUNER For purposes of improvement, specifications and design are subject to change without notice. Please use this service manual with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual set. TOKYO JAPAN Denon Brand Company, D&M Holdings Inc. X0237 V.01 DE/CDM 0507 TU-1800DAB SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. 2 TU-1800DAB LEVEL DIAGRAMS 3 TU-1800DAB BLOCK DIAGRAMS 4 TU-1800DAB SEMICONDUCTORS Only major semiconductors are shown, general semiconductors etc. are omitted to list. 1. IC's MB90F352C (IC300) 5 TU-1800DAB MB90F352C Terminal Function Pin No. Pin Name I/O Function 1 Avss Vss 2 AVRH Vcc 3 P62/AN2/PPG4(5) I key1 4 P63/AN3/PPG6(7) I key2 5 P64/AN4/PPG8(9) I encoder_a 6 P65/AN5/PPGA(B) I encoder_b 7 P66/AN6/PPGC(D) O FLT_RESET 8 P67/AN7/PPGE(F) O FLT_SELECT 9 P50/AN8/SIN2 O FLT_CLOCK 10 P51/AN9/SOT2 O FLT_DATA 11 P52/AN10/SCK2 O RDI_SELECT 12 P53/AN11/TIN3 O 13 P54/AN12/TOT3 O LED_STANDBY 14 P55/AN13 O LED_STEREO 15 P56/AN14 O LED_SECONDARY 16 P42/IN6/RX1/INT9R O LED_TUNED 17 P43/INT7/TX1 O LED_RDS 18 Vss GND 19 P40/X0A 20 P41/X1A 21 MD2