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So far I´m a satisfied customer. I have only downloaded "TECHNICS SX-KN470 Service Manual" maybe I will use it later.
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KDC-5090B/BY
COMPONENT DESCRIPTION
Ref. No. Q21 Q22 Q26 Q27 Q32 Q29 Q30 Component Name 2SB1184 ILL +B AVR 2SC4081 or 2SD1819A DTC144EUA or UN5213 DTC114YUA or UN5214 P-CON SW 2SB1277(Q,R) DTA124EUA or KRA303 2SA1576A or 2SB1218A P-CON. protection inhibit SW P-CON. protection SW Works during POWER ON mode. Prevents Q30 tuning ON during start-up after power ON. Protect Q32 by turning ON when P-CON output is grounded. While BACKUP is applied, a base goes Hi, and Q33 is Q33 2SC4081 or 2SD1819A BU detection SW turned on. When momentary power down has detected, a base goes Lo, and Q33 is turned off. Q34 Q42 Q43 Q45 Q47 Q46 Q48 Q51 Q52 Q55 Q56 2SC4081 or 2SD1819A DTC124EUA or UN5212 2SC4081 or 2SD1819A DTC124EUA or UN5212 FM +B SW 2SB1277(Q,R) DTC124EUA or UN5212 AM +B SW 2SB1277(Q,R) DTC144EUA or UN5213 2SC4081 or 2SD1819A 2SA1576A or 2SB1218A PAN 5V SW DTC124EUA or UN5212 and Q55 is turned on. IFC buffer Composite signal output buffer While a panel is attached to the set, Q56�s base goes Hi, Works during AM reception mode. Waveform shaping Works during FM reception mode. When Q46�s base goes Hi, Q48 is turned on. ACC detection SW E. VOL mute SW a base goes Hi, and Q42 is turned on. Noise buffer When Q45�s base goes Hi, Q47 is turned on. While ACC is applied, a base goes Hi, and Q34 is turned on. When BU detection SW or MI-COM.�s mute is working, Small lamp detection SW Works during POWER ON mode with a panel attached to the set. When vehicle small lamps turn on, Q26 is turned on . When Q27�s base goes Hi, Q32 is turned on . Application / Function Operation / Condition / Compatibility While Q22�s base goes Hi, AVR outputs +10.5V.
qCD PLAYER UNIT (X32-5010-00)
Ref. No. Component Name Application / Function Operation / Condition / Compatibility Generation of RF signal based on the signals from the APC circuit and pickup, and generation of servo error (focusing IC1 AN22000AA RF amplifier error and tracking error) signals. Detection of dropout, anti-shock, track crossing and off-track conditions, Gain control function building in. IC2 IC4 IC6 Q1 Q2 Q3 Q4 Q5 MN662774KG1 BA5917AFP NJM4565MD MCH6101 DTC124EUA DTA143XUA 2SA1362 (Y) DTC124EUA CD signal processor bult-in MI-COM. 4CH BTL driver OP Amp. APC P ON SW Q4 are turned on. A.8V SW D.5V SW MOTOR SW goes Hi, Q4 is turned on. A8V ON/OFF control. When a base goes Lo, Q3 is turnde on. D5V ON/OFF control. When a base goes Lo, Q4 is turnde on. When CD loading or eject operation is activating, Q5�s base Focusing coil, tracking coil, spindle motor and sled motor driver Low pass filter LD power control When CD source is selected, Q2�s base goes Hi, Q3 and
5
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