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SERVICE MANUAL
INDEX
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT NAMES AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENT PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
EXPLANATION OF MICROCOMPUTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
EXPLANATION OF OPERATION(DVD-ROM MECHANISM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
EXPLANATION OF CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
EXPLODED VIEW(DVD-ROM MECHANISM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PARTS LIST(DVD-ROM MECHANISM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
ABOUT UPGRADES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
CONNECTING A VIDEO DECK/VIDEO CAMERA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
REGARDING CLEANING THE PICKUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Portable DVD Navigation
System
FILE NO.
NV-E7500
( U.S.A. )
PRODUCT CODE No.
949 005 05
1
2
2
3
8
REFERENCE No. SM590500

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   Summary of Contents for Sanyo NV-E7500 - Navigation System With DVD Player

  • Page 1: Table Of Contents

    FILE NO. NV-E7500 SERVICE MANUAL Portable DVD Navigation ( U.S.A. ) System PRODUCT CODE No. 949 005 05 INDEX SPECIFICATIONS ............... CHARACTERISTICS .

  • Page 2: Specifications

    SPECIFICATIONS...

  • Page 3: Characteristics

    CHARACTERISTICS TOUCH SCREEN The unit shows you the way just by selecting a destination point. Search for your destination by entering the address or telephone number. Displays the recommended route all the way to your destination. Vocally guides you in an accurate and easy to understand way.(Voice guide) Enlarges highway junctions.(Junction guide) 3 route selections displayed.(Multiple route search) Constant turning direction display.(Crossing Enlargement Display)

  • Page 9: Disassembly

    DISASSEMBLY How to remove the PCB-ML,MAIN,DVD MECHANISM,MDVC07 and PCB-ML,DVD. [Refer to figure 1,2,3] 1. Remove 4 screws A which fasten the REAR CABINET ASSY on the reverse side, and the hook. 2. Remove FFC,50P which is connected to the PCB-ML,LCD and the PCB-ML,MAIN. 3.

  • Page 10

    DISASSEMBLY PCB-ML,MAIN LEAD,WIRE SOLDER LEAD,WIRE FFC,34P FFC,50P Figure2 FAN,MOTOR,DC DVD MECHANISM, MDVC07 LEAD,WIRE 2 LEAD WIRES PLACED ON FAN, FFC,50P MOTOR,DC SIDE LEAD,WIRE Figure3 PCB-ML,DVD...

  • Page 11

    DISASSEMBLY BRACKET,LCD SOCKET BRACKET-E,LCD BRACKET-E,LCD PCB-ML,LCD SOLDER FPC,32P BRACKET,LCD FFC,8P FFC,14P Figure4 PCB-W,KEY PCB-W,DIMMER 1 PCB-W,DIMMER SPEAKER SPEAKER SOLDER SHEET SHEET Figure5...

  • Page 12: Adjustment Procedures

    ADJUSTMENT PROCEDURES Power supply voltage DC +9.0V. Input the suitable signal for each adjustment at the time of the adjustment. It shifts to TEST MODE by pressing in order of [OUT][OUT][IN][IN][VOLUME-][VOLUME+] [VOLUME-][VOLUME+][RETURN][POSITION]. When in TEST MODE,the items can be changed by pressing [ ] or [ ] of joystick, and the values can be changed by pressing [VOLUME+] or [VOLUME-].

  • Page 13

    ADJUSTMENT PROCEDURES BLACK LEVEL THE FIRST FROM WHITE SAME STEPS WHITE LEVEL THE FIFTH FROM BLACK BLACK-WHITE VOLTAGE BLACK-BLACK VOLTAGE FIGURE 1 <Adjustment conditions> Adjustment shall be done with the combination of a paired LCD module. Display a map screen in the NAVI MODE. Be within TEST MODE,and adjust it.

  • Page 14

    ADJUSTMENT PROCEDURES <Adjustment conditions> Insert the connector of the jig for the FREE RUN adjustment into CN1007. Connect 6pin(CSYNC) of CN1007 to GND. Select VIDEO or DVD MODE.(Any input is possible.) Observe 7pin of CN1007 in the frequency counter. FREE RUN Adjustment Adjust SVR1003 to make the frequency of 7pin of CN1007 become 15.73kHz±0.01kHz.

  • Page 15: Explanation Of Microcomputer

    EXPLANATION OF MICROCOMPUTER IC 1151 (HD64F3039TEBL18) Signal Function /RST0 ATAPI controller/decoder reset /RST1 Servo/data processor reset SPDRVPS Spindle motor driver power save H : Operation mode, L : Standby MUTEL H : MUTE ON / L : MUTE OFF Lch MUTER H : MUTE ON / L : MUTE OFF Rch Normally 5V,boot flash writing 0V...

  • Page 16

    EXPLANATION OF MICROCOMPUTER IC 1 (M30802) 1/2 Port Signal Function TXD4 MAIN_DVD MAIN-DVD communication CLK4 DVD_CLK Clock input for the DVD DIMOUT Dimmer output VOL_0 DAC output for the volume adjustment TXD3 MAIN_DARC RXD3 DARC_MAIN CLK3 DARC_CLK P146 DARC_CE P145 DARC_RST P144 TU_CLK...

  • Page 17

    EXPLANATION OF MICROCOMPUTER IC 1 (M30802) 2/2 Port Signal Function RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED P124 P123 FMLVL P122 DOOR DOOR detect P121 SMUTE Audio mute output P120 DMUTE Image mute output Power supply 4.2V-5.5V Key return Key return Key return...

  • Page 18

    EXPLANATION OF MICROCOMPUTER IC 20 (HD6417706) 1/3 Signal Function LLVcc POWER +1.9V XTAL2 EXTAL2 Pull-up SD31 Data bus SD26 SD25 Data bus LVcc POWER +3.3V SD24 Data bus SD20 SD19 Data bus LLVcc POWER +1.9V SD18 Data bus SD17 Data bus SD16 Data bus SD15...

  • Page 19

    EXPLANATION OF MICROCOMPUTER IC 20 (HD6417706) 2/3 Signal Function /CS6 Chip select 6 /CE2A PTD[7] Input/output port D LVcc POWER +3.3V /RAS Lower32 Mbytes address RAS PTD[1] Input/output port D /CAS Lower32 Mbytes address CAS PTD[3] PTD[4] /IOIS16 Pull-up /BACK /BREQ Pull-up /WAIT...

  • Page 20

    EXPLANATION OF MICROCOMPUTER IC 20 (HD6417706) 3/3 Signal Function IRQ0 External interrupt request(Q2) IRQ1 External interrupt request(ATAPI) IRQ2 External interrupt request(FM) IRQ3 External interrupt request(BEACON) IRQ4 External interrupt request(GYRO) Pull-up LVcc POWER +3.3V PTG[4] Pull-up /DREQ0 DMA request /DREQ1 DMA request PTG[5] Input port G Pull-down...

  • Page 21

    EXPLANATION OF MICROCOMPUTER IC 30 (LC24072B) 1/2 Signal Function LVcc HD10 ATAPI data bus HD11 HD12 HD13 HD14 ATAPI data bus HD15 LVcc POWER +3.3V HDREQ ATAPI DMA transmit request /HDR ATAPI Read strobe /HWR ATAPI Write strobe /HIORDY ATAPI Wait /HDACK ATAPI DMA transmit strobe ATAPI Address bus...

  • Page 22

    EXPLANATION OF MICROCOMPUTER IC 30 (LC24072B) 1/2 Signal Function /DACK1 DMA acknowledge /DACK0 DMA acknowledge /WAIT Wait output /CS6 /CS5 Chip select input /CS4 /CS0 /WE1 Write strobe /WE0 Write strobe Read strobe SA22 Address bus Address bus Data bus LVcc POWER +3.3V...

  • Page 23: Trouble Shooting

    TROUBLE SHOOTING Is this DC +9.0V connected to the power supply socket(JK6)? Is the power supply swich(SW1)turned ON? Then turn the Power supply switch ON. Confirm +5V at out of IC2. Then check around IC2. Confirm +5V at pin 1 of IC4 Then check around IC4,Q2,Q3.

  • Page 24

    TROUBLE SHOOTING NAVI Confirm the signal at pin 1,9,14 of IC8 Then check around and pin 5 of IC11. IC8 and IC11. NAVI BLOCK Confirm the signal at pin 8,11,16 of IC8 Then check around and pin 3 of IC11 IC8 and IC11.

  • Page 25

    TROUBLE SHOOTING VIDEO Confirm the signal at pin 2,15 of IC13. Then check around IC13. Confirm the signal at pin 2,6 of IC17. Then check around IC17. Then check around IC18 and JK5. NAVI Confirm the signal at pin 5,14of IC13. Then check around IC13.

  • Page 26

    TROUBLE SHOOTING (DVD - ROM MECHANISM) Does disc rotate? Is laser luminescence Check the socket between PCB and MECHANISM performed? (CS1101 ,CS1301, CS1302 and CS1303) Check laser drive circuit (Q1102 and Q1103) Check inside SW for PICK UP Check feed motor circuit (IC1102) Check 3.3V power supply circuit (IC1103, IC1104 and Q1101) Check laser PICK UP...

  • Page 28: Explanation Of Circuit

    EXPLANATION OF CIRCUIT IN NAVI MODE, the power supply is supplied to NAVI BLOCK and SERVO PCB. The NAVI signal from th microcomputer is Hi, and +3.3V and +5V are supplied to NAVI BLOCK from Q36, Q38 and Q40. +5V is supplied to SERVO PCB from Q120 a.

  • Page 29

    EXPLANATION OF CIRCUIT c. Audio part There are 3 kinds of audio outputted by this set, NAVI GUIDANCE, DVD AUDIO, and VIDEO IN AUDIO. NAVI GUIDANCE outputted from NAVI BLOCK is directly inputted to SW IC13 . The audio outputted from DVD BLOCK is outputted to IC13 via GRAND ISOLATOR IC15 . VIDEO IN AUDIO is switched (input/output) by IC18 and AMP is performed at IC17 and inputted to IC13.

  • Page 30

    EXPLANATION OF CIRCUIT 1. RF AMP PART(IC1101) For the signal read by PICK UP, AMP is performed, and equalizing of playback RF signal and error signal required for each SERVO are generated. 2. DSP PART(IC1201) Digital signal processing of the signal from RF AMP is performed, and control signals of PICK UP, SPINDLE MOTOR, and FEED MOTOR etc are outputted.

  • Page 31

    M E M O...

  • Page 32: Exploded View(dvd-rom Mechanism)

    EXPLODED VIEW(DVD-ROM MECHANISM) Note: The form of this diagram may differ from the actual thing.

  • Page 33: Parts List(dvd-rom Mechanism)

    PARTS LIST(DVD-ROM MECHANISM) Ref. No. PART No. DESCRIPTION Q'ty Ref. No. PART No. DESCRIPTION Q'ty DVD-ROM MECHANISM IC1153 409 424 7709 IC IC-PST597EN IC1154 409 323 8708 IC TC7WU04FU 661 035 1884 ASSY,CHASSIS,DVD, IC1104 405 207 4507 TR HAT1025R-E NO SERVICE PART Q1101 405 124 2402 TR 2SB1424-R...

  • Page 34: Exploded View

    EXPLODED VIEW...

  • Page 35: Parts List

    PARTS LIST PRODUCT SAFETY NOTICE Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol in the parts list and the schematic diagram designate components in whitch safety can be of special significance. When replacing a component identified with use only the replacement parts designated, or parts with the same ratings of resistance, wattage or voltage that are designated in the parts list in this manual.

  • Page 36

    PARTS LIST(CONTINUED) Ref. No. PART No. DESCRIPTION Q'ty Ref. No. PART No. DESCRIPTION Q'ty 661 064 3316 SPEAKER,8 OHM 407 209 6800 ZENER DIODE 02CZ9.1-Y 661 049 7292 STAND ASSY DZ502 407 238 8400 ZENER DIODE RD3.0S-AB1 661 029 7465 DVD MECHANISM,MDVC07 DZ501 407 234 1900...

  • Page 37

    PARTS LIST(CONTINUED) Ref. No. PART No. DESCRIPTION Q'ty Ref. No. PART No. DESCRIPTION Q'ty 661 000 7187 INDUCTOR,FERRITE CN1008 661 050 9780 SOCKET,14P 661 000 7187 INDUCTOR,FERRITE CN1500 632 775 2707 PLUG,2P 661 000 7187 INDUCTOR,FERRITE D1001 407 218 1803 DIODE RB706D-40 661 000 7187 INDUCTOR,FERRITE...

  • Page 38

    PARTS LIST(CONTINUED) Ref. No. PART No. DESCRIPTION Q'ty Ref. No. PART No. DESCRIPTION Q'ty BR2012 661 064 9691 RESISTOR BLOCK,33X4 L2006 632 883 2132 INDUCTOR,FERRITE BR2013 661 064 9691 RESISTOR BLOCK,33X4 L2008 632 883 2132 INDUCTOR,FERRITE BR2022 661 064 9691 RESISTOR BLOCK,33X4 L2021 632 883 2132...

  • Page 40: Connecting A Video Deck/video Camera

    CONNECTING A VIDEO DECK/VIDEO CAMERA Use the AUDIO and VIDEO RCA cords included with this unit to enable the playback of images from your video deck or video camera. Connect your video deck/video camera to the unit. Video deck/video camera AV output Mini-plug To video I/O terminal...

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