Sony CDX-3250 free download

File name CDX-3250.pdf

CDX-3250 SERVICE MANUAL AEP Model UK Model Model Name Using Similar Mechanism CD Drive Mechanism Type Optical Pick-up Name CDX-4180 MG-363X-121 KSS-521A SPECIFICATIONS FM/MW/LW COMPACT DISC PLAYER MICROFILM ­1­ SECTION 4 DIAGRAMS 4-1. IC PIN DESCRIPTION · IC801 µPD17705GC-526-3B9 (SYSTEM CONTROL) Pin No. Pin Name I/O 1 SIRCS I SIRCS input (A/D) 2 3 4 5 6 7 8 9 10 11 12 13 14, 15 16 17 ­ 20 21 22 ­ 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55, 56 57 58 IN-SW D-SW SELF-SW L-SW LM-EJ LM-LOD ANT-ON MONO SD BAND-SW AREA1-SW AREA2-SW RE1, 2 SEEK NC GND3 KEYIN3 ­ 1 ROT-IN S-METER TEST-SW AM-IFC FM-IFC VDD2 VCOH-FM VCOL-AM GND2 NC EO1-PDOUT TESTO AM-ON(TU-ON) FM-ON(FM/AM) LCL/DX BEEP ACC-IN SCOR MUTE AMP-MUTE TEL-MUTE NC VOL-CE VOL-CLK VOL-DATA EMPHO PW-ON MD-ON CD-ON ILL-ON MOD1, 2 NC LCD-CE I I I I O O O O I I I I I O -- -- I I I I I I -- I I -- -- O -- O O O O I I O O O -- O O O O O O O O O -- O CD mechanism position detection CD mechanism position detection CD mechanism position detection LIMIT switch Loading motor control (Eject direction) Loading motor control (Loading direction) Power control for amplifier. Force MONO output (Not used.) SD signal input Band plan setting of general area. Destination select 1 Destination select 2 Rotary encoder input 1, 2 SEEK output Not used. Ground A/D key input 3 ­ 1 Rotary commander input FM and MW/LW common signal meter A/D conversion input. TEST mode select input MW/LW center frequency input FM center frequency input Power supply (+5 V) Local oscillation frequency input (FM) Local oscillation frequency input (MW/LW) Ground Not used. Error out output Fixed at "L". MW/LW power output (MW/LW select) FM power output (FM select) LOCAL/DX select ("H" : LOCAL, "L" : DX) BEEP output Accessory input SUBQ data read request System mute output Power amplifier mute output Telephone mute output Not used. Electric volume chip select Electric volume serial clock Electric volume serial data De-emphasis control output System power control Loading motor power Servo drive power Illumination output Bus boost control 1, 2 Not used. LCD drive chip select output Pin Description ­ 19 ­ Pin No. 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Pin Name EZ-SEL SENS FOK LD-ON NC ST/MONO LCD-CKO LCD-SO C.ALARM SQ-CKO CD-RST SQ-SI CD-SO CD-LAT CD-CKO VREF GND1 X-OUT X-IN BU-IN VDD1 RESET I/O I I I O -- I/O O O O O O I O O O -- -- -- I I -- I Pin Description SHIFT + input Information input from servo IC. Focus OK input Laser diode control Not used. (Connect to GND.) Used for both STEREO indicator display input and force MONO output. (FM) LCD driver serial clock output LCD driver serial data output Caution alarm output Q data read serial clock output Servo IC/DAC reset output Q data input Serial data output to servo IC. Data latch output to servo IC. Serial clock output to servo IC. Not used. Ground Crystal oscillator connection (4.5 MHz) Crystal oscillator connect