SECTION 1. SUMMARY ❏ SERVICING PRECAUTIONS ❶ Always disconnect the power source before: 1) Removing or reinstalling any component, circuit board, module or any other instrument assembly. 2) Disconnecting or reconnecting any instrument electrical plug or other electrical connection. 3) Connecting a test substitute in parallel with an electrolytic capacitor in the instrument. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.
❏ ESD PRECAUTIONS Electrostatically Sensitive Devices (ESD) Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
❏ SPECIFICATIONS MP3/WMA Disc compatibility with this unit is limited as follows: 1. Sampling Frequency / 8 - 48kHz (MP3) 22.05 - 48kHz (WMA) 2. Bit rate / within 8 - 320kbps (include VBR) (MP3) 32 -320kbps (WMA) 3. CD-R/CD-RW physical format should be “ISO 9660” 4.
❏ INSTALLATION • Basic Installation Before installing, make sure that the ignition switch is set to Bend the claws OFF and remove the terminal of the car battery to avoid according to the thickness short-circuiting. of the dashboard 1 Remove the existing receiver unit. 2 Make the necessary connections.
❏ CONNECTION DIAGRAM Before connecting, make sure that the ignition switch is set to OFF, and remove the battery terminal to avoid short circuits. From antenna To the wiring of the vehicle colors of leads. PHONE MUTE (ORANGE) GROUND(-) (BLACK) DIMMER (PINK) DIMMER SWITCH TO IGNITION (RED)
Speaker Connections • BLACK : This lead is for the ground connection. • ORANGE : This lead is for the phone line connection. • PINK : This lead is for the dimmer line connection. • RED : This lead is for connection to the power supply terminal when the ignition switch is set to ACC.
SECTION 2. ELECTRICAL ❏ ELECTRICAL TROUBLESHOOTING GUIDE 1. No Power. Any Key power on. Check power supply circuitry. Is power turnd on? IC802 Pin Check loading supply circuitry. DISC loading? IC802 Pin Check laser circuitry. Does initial reading occur? Q501, IC506 Check focusing circuitry.
2. LCD light abnornal. Any Key power on. (without DISC) Power supply circuitry defective. Check voltage in the power • Check Q403, Q404, Q406, Do display LCD then light? supply circuitry. Q407, IC802 Pin Is u-com IC401 pin reset • Reset circuit defective. circuit normal? IC901 Surrounding circuit defective.
3. Initial reading is not carried out. Defective Check the Voltage change of Slide motor moves. Connector. (PN502) PN502 Pin (6.4~6.8V). (With disc) Check the Voltage change of PN506 Defective IC506 76 77 Pins . (1.4V~1.8V). Spindle motor turns. Check the Data transmission (Refer to FIG3.) 70 72 from IC510 pins...
When laser does not light. Is “2.4V~3.4V” applied to pin42 of IC506? ➀ 3.4V ➁ 2.4V) Did pickup return to Is data transferred Defective MICOM (IC510) innermost circular? from IC510? Does voltage appear at Defective IC504 IC504 Pins 13 14 Defective slide motor and/or connector(PN504) Is defect output from LMT...
When laser light. Laser lights? Check the signal FOCUS Defective IC506 SEARCH of IC506 Pin (Refer to FIG1.) Check the signal of IC504 Pins 15 16 Defective IC506 (Refer to FIG1.) • Degraded laser diode • Defective PICK-UP When SPINDLE motor dose not turn Check the change for SPDO Voltage Defective IC506...
3) Pin Function Pin no. Symbol Function Adress signal output for DRAM11 Adress signal output for DRAM9 Adress signal output for DRAM8 Adress signal output for DRAM7 Adress signal output for DRAM6 Adress signal output for DRAM5 Adress signal output for DRAM4 Writing enable signal output for DRAM NCAS CAS control signal output for DRAM...
KIA78R05 (Terminal Low Drop Voltage Regulator) 1) Block Diagram BAOOCCOWFP (IA Low Dropout Voltage Regulator) 1) Block Diagram N.C. Vref Driver VOUT - 2-19 -...
OTI6888 (USB Host Controller) 1) GENERAL DESCRIPTION OTi-6889 is the USB mini host controller with popular compressed media format bit-stream interface, such as MP3, WMA. The controller embedded the USB 1.1 host/device function; the function provides the ability that can be connected to the USB device and PC via USB port. The user may store the MP3/WMA songs in the USB mass storage device and play them through the OTi-6889 bit-stream interface.
SECTION 3. EXPLODED VIEWS ❏ CABINET AND MAIN FRAME SECTION Service purchase Guidance A40 compose by Front PWB ASSY, Lighting PWB ASSY (A40L) & USB Jack ASSY (A40U). Because 3 kinds of PWB Assembly is worked in PWB negative plate of one, supply is smooth if require by A40 P/N in the case of Purchase Order.