Kenwood CD-3260M Service Manual

Also see for CD-3260M: Service ma

Contents

CD-3260M/3280M/DPF-J70206CIRCUIT DESCRIPTIONPin No. Pin Name I/O Description56 JOG1 I Encoder signal B input.57 DOOR-SW I Door open/close detector switch.58 LOAD-SW2 I Load switch2 for sub pickup(CD-3280M only).59 UNLOAD-SW2 I Unload switch2 for sub pickup(CD-3280Monly).60 DISC-SW2 I Disc2 sensor(CD-3280M only).61 VSS - GND.62 LOADM-2 O Load motor(-) for sub pickup(CD-3280M only).63 LOADM+2 O Load motor(+) for sub pickup(CD-3280M only).64 AVREF1 - D/A reference power supply.65 RXD2 I UART communication input(CD-3280M only).66 TXD2 O UART communication output(CD-3280M only).67 SQCK/SCK-SW O SQCK,SCK(DOT/DSP clock) selector. L:DSP.68 RXD1 I UART communication input from sub u-com(CD-3280M only).69 TXD1 O UART communication output to sub u-com(CD-3280M only).70 LDC O Laser on/off. L: Laser diode on.71 STB1 O Strobe signal output to dot driver.72 S0 I Data input from dot driver.73 SQS1 I Sub code read data input.74 S1 O Data output to dot driver.75 SCK/SQCK O Dot driver/sub code read clock.76-83 A16,14,12,7-3 O Address output to SRAM.84-91 D0-7 I/O SRAM data bus.92-97 A8-11,13,15 O Address output to SRAM.98,99 A0,1 O Address output to SRAM.100 VSS - GND.VOLTAGE A/D0(33) A/D1(32) A/D2(31)4.1V - - DISPLAY*OPERATION3.3V - - RANDOM2.5V - - CONFIRM1.6V - REPEAT *CONT.P0.8V DOWN *DISP. PLAY/PAUSE0V UP POWER STOP* CD-3280M only1-3 Key matrix ( ) : IC14 Pin No.