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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
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 âHiâ, and Q31 is turned on.
â 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 Q3âs base goes âHiâ, 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 âHiâ, 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.
CH RESET SW
Hold detection SW
Q8 Q9 Q101 Q201 Q303 Q304 Q305 Q306 Q307 Q308 Q309 Q310
DTC143TK 2SC4640(T,U) 2SK2158 2SK2158 2SA1162(GR) 2SK2158 2SK2158 2SK508L 2SC2714(Y) 2SK2158 2SK2158 2SK2158
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
â 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 Q1âs base goes âHiâ, Q2 is turned on, and LED is turned on. Ready on key-matrix When Q4âs base goes âHiâ, Q5 is turned on, and 5V is supplied to remote control sensor. Operation/Condition/Compatibility