Schematy są ale można wysilić się i zrobić kolorowy skan i o większej rozdzielczości. Wtedy schematy płytek będą czytelniejsze. Całość super jako wartość merytoryczna. Wszystkie dane potrzebne do podłączenia różnego rodzajów urządzeń takich gramofon, CD itd.
jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
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KDC-C469/Y/FM/FMA KDC-C669/Y
COMPONENT DESCRIPTION
Ref. No. Q30 Component Name DTC114YUA Application/Function Eccentric disc SW Operation/Condition/Compatibility When an eccentric disc is detected, Q30 is turned on, and a preceding beam is made to be delayed. While spindle servo or disc loading/eject mode is selected, a base goes �Hi�, and Q31 is turned on.
Q31
DTC124EUA
VIN SW
� RF MODULATOR UNIT
Ref. No. IC1 IC2 IC4 IC101 IC102 IC301 IC302 Q1 Q2 Q3 Q4 Component Name UPC7805AHF LC72329-9B24 NJM78L05UA NJM2060M NJM4565MD BA1405F NJM4565MD DTC124EK 2SA1782(T,U) DTC124EK DTC143TK Application/Function BU 5V AVR System MI-COM. 5V AVR Isolation amp. Low pass filter FM ST modulator 1/2 VCC driver, ALC detection amp. ACC detection POWER SW When Q4 is turned on, Q1 is turned on during ACC applied. When Q3�s base goes �Hi�, Q2 is turned on, and RF modulator circuit is working. When RESET SW on display unit is pressed, Q4, Q1 and Q6 are turned off, and IC2 is holding. When RESET SW on display unit is pressed, Q5 is turned off, and SYSTEM RESET signal is outputted to CD changer. When RESET SW on display unit is pressed or ACC is OFF, Q6 is turned off, and IC2 is holding. FM modulator output / Vehicles antenna input switching. When a base goes �Hi�, FM modulator output is selected. Power supply for RF amplifier Operation/Condition/Compatibility While BACKUP is applied, AVR outputs +5V. System control. Power supply for FM modulator and RF amplifier.
Relay driver Ripple filter ALC control SW Pilot mix amp. Level control SW Level control SW RF oscillator buffer RF amp. Mode (1/2) SW Audio mute Mode (1/2) SW
Level 1/2 : OFF, Level 3/4 : ON Level 2/4 : OFF, Level 1/3 : ON
Mode 1 : ON, Mode 2 : OFF POWER ON mode : OFF, POWER OFF mode : ON Mode 1 : OFF, Mode 2 : ON
� DISPLAY UNIT
Ref. No. IC1 IC2 Q1 Q2 Q3 Q4 Q5 Component Name LC75852W PNA4602M DTC144EK DTB123YK DTA144EK DTC144EK DTA144EK Application/Function LCD driver with key-matrix Remote control light senser LED ON/OFF SW Key-matrix permition SW IC2 ON/OFF SW When Q1�s base goes �Hi�, Q2 is turned on, and LED is turned on. Ready on key-matrix When Q4�s base goes �Hi�, Q5 is turned on, and 5V is supplied to remote control sensor. Operation/Condition/Compatibility
