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Pioneer AVX-7300/UC Service Manual
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Pioneer AVX-7300/UC Service Manual

Pioneer AVX-7300/UC Service Manual

Pioneer avx-7300 7 inch wide av system display
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Service
Manual
7 INCH WIDE AV SYSTEM DISPLAY
AVX-7300
AVX-7300
AVX-7300
NOTE:
- Inverter for LCD back light becomes a high voltage.
- About FPC between control PCB and relay unit.
There is a direction of the connector and the installation is noted.
Please note that the length of the line is short at the time of detaching.
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................2
4. PCB CONNECTION DIAGRAM................................28
5. ELECTRICAL PARTS LIST........................................41
6. ADJUSTMENT .........................................................49
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2001
EW
ES
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
7. GENERAL INFORMATION.......................................49
7.1 DIAGNOSIS ........................................................49
7.1.1 TROUBLESHOOTING ..............................49
7.1.2 DISASSEMBLY.........................................53
7.2 IC
..................................................................58
7.3 EXPLANATION ...................................................62
7.3.1 MECHANISM DESCRIPTIONS ................62
7.3.2 OPERATIONAL FLOW CHART.................66
8. OPERATIONS AND SPECIFICATIONS ....................67
K-ZZU. MAY 2001 Printed in Japan
ORDER NO.
CRT2671
UC

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Summary of Contents for Pioneer AVX-7300/UC

  • Page 1: Table Of Contents

    PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2001 K-ZZU. MAY 2001 Printed in Japan...

  • Page 2: Safety Information

    AVX-7300 1. SAFETY INFORMATION CAUTION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.
  • Page 3 - Parts marked by “*”are generally unavailable because they are not in our Master Spare Parts List. ∇ mark on the product are used for disassembly. - Screws adjacent to - PACKING SECTION PARTS LIST Part No. Mark No. Description AVX-7300/UC AVX-7300/EW AVX-7300/ES 1 Cord CDE6573 CDE6573...
  • Page 4 AVX-7300 2.2 EXTERIOR(1/3)
  • Page 5 74 Button(V.SRC) CAC7010 75 Detach Grille Assy See Contrast table(2) 76,77 ••••• 78 IC(IC1901) TSOP1840SB1 (2) CONTRAST TABLE AVX-7300/UC , AVX-7300/EW and AVX-7300/ES are constructed the same except for the following: Part No. Mark No. Description AVX-7300/UC AVX-7300/EW AVX-7300/ES Panel...
  • Page 6 AVX-7300 2.3 EXTERIOR(2/3)
  • Page 7 AVX-7300 - EXTERIOR(2/3) SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Drive Unit CXB7323 41 Screw(M1.7x3) CBA1475 2 Rail CNS6492 42 Screw(M2x2) CBA1484 3 Rail CNS6493 43 Screw(M3x3) CBA1534 4 Guide CNS6494 44 Washer CBF1064 5 Guide CNS6495...
  • Page 8 AVX-7300 2.4 EXTERIOR(3/3)
  • Page 9 CNM7593 22 Sheet CNM7594 - Please stop the reuse of this sheet when you peel off sheet(9,10,21,22). (2) CONTRAST TABLE AVX-7300/UC , AVX-7300/EW and AVX-7300/ES are constructed the same except for the following: Part No. Mark No. Description AVX-7300/UC AVX-7300/EW...

  • Page 10: Block Diagram And Schematic Diagram

    AVX-7300 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM CONTROL PCB RELAY UNIT CN101 CN1103 CN201 IC 301 RET H IC 302 IC 103 TC74HC123AF RET V TC7W34FU TC74VHCT08AFT IC 604 M62354GP CONNECTOR IC 101 DIMMER NJM2903V Q604 AVREF0 BL+B OSDCK/OSDCS/OSDDT IC 605...
  • Page 11 AVX-7300 UNIT LCD MODULE CN1101 LCD_R IC 1101 14 G LCD_G BA7623F IC 1105 LCD_B BACK LIGHT BA7603F 2,7, IC 1108 IC 1102 LCD_V TC7S08FU NJM2267V IC 1107 IC 1103 IC 1104 TC74HC123AF TC7SH32FU TC7S08FU IC 1106 INVERTER PCB PD5582A Q2943 T2941 CN2941...
  • Page 12 AVX-7300 3.2 CONTROL PCB(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram Guide page > Detailed page SYNC SEPARATOR > EW,ES MONITOR MICRO COMPUTER >...
  • Page 13 AVX-7300 CONTROL PCB Control Unit > Consists of > Control PCB Photo PCB > > > > 1K(1/2W) 1K(1/2W) CEK1001 > NOTE : Symbol indicates a resistor. Decimal points for resistor No differentiation is made between chip resistors and and capacitor fixed values discrete resistors.
  • Page 14 AVX-7300...
  • Page 15 AVX-7300...
  • Page 16 AVX-7300...
  • Page 17 AVX-7300...
  • Page 18 AVX-7300 3.3 PHOTO PCB...
  • Page 19 AVX-7300...
  • Page 20 AVX-7300 CN2804 3.5 RELAY UNIT L fixation always...
  • Page 21 AVX-7300 RELAY UNIT...
  • Page 22 AVX-7300 3.6 INVERTER PCB...
  • Page 23 AVX-7300 3.7 GRILLE PCB GRILLE PCB Keyboard Unit Consists of Inverter PCB Grille PCB Reset CN651 EWmodel V.SRC DETACH SENSE CSG1112:UC,ES CSG1113:EW CSG1112:UC,ES CSG1113:EW EW model...
  • Page 24 AVX-7300 3.4 ENCODER UNIT...
  • Page 25 AVX-7300...
  • Page 26 AVX-7300 3.8 VIDEO SCHEMATIC...
  • Page 27 AVX-7300 VIDEO SCHEMATIC...

  • Page 28: Pcb Connection Diagram

    AVX-7300 4. PCB CONNECTION DIAGRAM 4.1 CONTROL PCB NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2.
  • Page 29 AVX-7300 SIDE A...
  • Page 30 AVX-7300 CONTROL PCB...
  • Page 31 AVX-7300 SIDE B FRONT...
  • Page 32 AVX-7300 4.2 RELAY UNIT RELAY UNIT SIDE A CN2804 CN101 IC,Q CN001 CN1301 CN2941...
  • Page 33 AVX-7300 RELAY UNIT SIDE B IC,Q...
  • Page 34 AVX-7300 4.3 INVERTER PCB INVERTER PCB SIDE A SIDE B CCFL INVERTER PCB CN1101...
  • Page 35 AVX-7300 4.4 GRILLE PCB IC,Q IC,Q SIDE A SIDE B GRILLE PCB GRILLE PCB CN651 Q1902 Q1901 Q1903 IC1901 Q1904...
  • Page 36 AVX-7300 4.5 ENCODER PCB ENCODER PCB SIDE A CN1102 ENCODER PCB SIDE B...
  • Page 37 AVX-7300 4.6 SW PCB SW PCB SW PCB SIDE A SIDE B DEG0 CN2806...
  • Page 38 AVX-7300 4.7 VIDEO SCHEMATIC VIDEO SCHEMATIC CN1101...
  • Page 39 AVX-7300...
  • Page 40 AVX-7300 4.8 PHOTO PCB PHOTO PCB IC,Q SIDE A PHOTO PCB SIDE B CN1101...

  • Page 41: Electrical Parts List

    AVX-7300 5. ELECTRICAL PARTS LIST NOTE: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
  • Page 42 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Inductor CTF1379 RAB4C102J Inductor CTF1379 RAB4C102J Inductor CTF1379 RS1/16S102J Inductor CTF1379 RAB4C221J Inductor CTF1379 RS1/16S101J Inductor CTF1379 RS1/16S102J Inductor CTF1379 RS1/16S101J Inductor...
  • Page 43 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S750J CEV101M16 RS1/10S0R0J 680µF/16V CCH1415 RAB4C102J CKSRYB102K50 RS1/16S102J CKSRYB102K50 RS1/16S104J CEV101M16 RS1/16S473J CEV470M6R3 RS1/16S0R0J CKSRYB102K50 (UC) RS1/16S223J CEV4R7M25 (EW) RS1/16S473J CEV470M16 (ES)
  • Page 44 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1129 RS1/16S0R0J Unit Number : CWM7752 1130 RS1/16S222J 1134 RS1/16S151J Unit Name : Relay Unit 1135 RS1/16S0R0J MISCELLANEOUS CAPACITORS IC 1101 BA7623F 1101...
  • Page 45 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 1906 CL170PGCD CAPACITORS 1909 CL170PGCD 2940 Diode UDZ6R8(B) 2941 Diode HZU6R2(B3) 1901 CKSRYB104K16 2942 Diode HZU6R2(B3) 1902 CKSRYB105K6R3 2941 CKSRYB104K16 2943 Diode...
  • Page 46 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- 2818 RS1/16S103J TC7W14FU 2819 RS1/16S0R0J TC7SET08FU 2820 RS1/16S0R0J TC7S14FU 2821 RS1/16S473J TC7S14FU 2822 RS1/16S0R0J TA75072F 2823 RS1/10S391J Transistor 2SC3265 2824 RS1/16S473J Transistor...
  • Page 47 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/8S680J RS1/8S680J RS1/8S680J RS1/16S681J RS1/16S561J RS1/16S1802F RS1/16S624J RS1/16S274J RS1/16S334J RS1/16S563J RESISTORS RS1/16S101J RS1/16S151J RS1/16S331J RS1/16S332J RS1/16S101J RS1/16S182J RS1/16S153J RS1/16S474J RS1/16S102J RS1/16S105J RS1/16S103J...
  • Page 48 AVX-7300 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CKSRYB103K50 CAPACITORS CKSRYB103K50 CKSRYB103K50 CCSRCH470J50 CCSRCH681J50 CCSRCH101J50 CCSRCH331J50 CCSRCH102J25 CKSRYB104K16 CSZSR68M16 CKSRYB104K16 CKSRYB103K50 CKSRYB154K10 CCSRCH681J50 CKSRYF104Z25 CKSRYB104K16 CSZSR68M16 CKSRYB104K16 CKSRYB104K16 CSZSR68M16 CKSRYB104K16...

  • Page 49: Adjustment

    AVX-7300 6. ADJUSTMENT There is no information to be shown in this chapter. 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 TROUBLESHOOTING - LCD module troubleshooting 1No images Normal signal is obtained at Check the CN001 , inputconnecting each terminal of CN001? flexible cables and its periphery.
  • Page 50 AVX-7300 Check Q501(TA75072F) , Q201 , Pin-38 of Q201(IR3Y29BM) and its periphery Normal Vcom signal is obtained at TP13? Q502 to Q504(Buffer), and their periphery. RGB signal for LCD is obtained at Pin-19, Replace Q201(IR3Y29BM). Pin-21 and Pin-24 of Q201(IR3Y29BM)? Check Pin-3 and Pin-5 of Blanking signal is obtained at Pin-9 to Pin-11 Q282(TC7W14FU) , Pin-8 of...
  • Page 51 AVX-7300 2No power F801(fuse) is broken out? Replace F801. Check 18.5V line to remove short-circuits. 18.5V is obtained at TP02? (CN003 ,R017 ,Q003 and their periphery. Check -12V line to remove short-circuits. -12V is obtained at TP05? (Q502 ,Q505 ,Q501 and their periphery. Check 3.3V line to remove short-circuits.
  • Page 52 AVX-7300 3Out of Sync Video signal is obtained at Q652(TR)? Check CN001 , Q651 and their periphery. Sync signal is is obtained at Check R239(LPF) and their periphery. Pin-36 ofQ201(IR3Y29BM)? Sync signal is obtained at Pin-21 and Pin-22 Check Q291 to Q293 and their periphery. of Q003(Gate array) when the input signal is input? Check Q282 , Pin-9 of Q003 Sync signal is obtained at Pin-34...

  • Page 53: Disassembly

    AVX-7300 7.1.2 DISASSEMBLY - Cautions for disassembling and reassembling 1. When pulling chassis and case unit apart, remove Case Unit gear, remove five screws, and then remove set of shaft unit before sliding case unit out. When reassembling, the switch on the SW PCB become caught by the parts, Chassis so keep the two screws of A as well as the SW PCB removed while reinstalling the case unit.
  • Page 54 AVX-7300 Removing the Holder (Fig.4) Remove the four screws and then remove the Holder. Fig.4 Holder Removing the Case (Fig.5) Remove the six screws and then remove the Case. Removing the Bracket (Fig.5) Remove the two screws and then remove the two Brackets.
  • Page 55 AVX-7300 Control PCB Removing the Grille Assy (Fig.6) Remove the two screws, remove the connector and then remove the Grille Assy. Removing the Control PCB (Fig.6) Straight the tabs at six locations indicated. Remove the screw. Disconnect the connector and then remove the Control PCB.
  • Page 56 AVX-7300 Pull out the Display Assy (Fig.8) Remove the four and two screws, remove the two covers. Remove the gear. Cover Cover Pull out the Display Assy. Display Assy Fig.8 Display assy becomes such a condition. Removing the LCD Module (Fig.9) Cover Remove the three screws and then remove the Cover.

  • Page 57: Connector Function Description57

    AVX-7300 7.1.3 CONNECTOR FUNCTION DESCRIPTION SPEAKER 1 : B.U. 1 : ANR 2 : GND 2 : ANG 3 : ILM 3 : ANB 4 : NC 4 : GNDSIG 5 : ACC 5 : CSYNC 6 : P.B. 6 : NC 7 : NC 7 : NC 8 : NC...
  • Page 58 AVX-7300 7.2 IC - Pin Functions(PD5582A) Pin No. Pin Name Function and Operation OSC1 External terminal of oscillator circuit for display OSC2 External terminal of oscillator circuit for display Chip select input Serial clock input Serial data input Auto clear input 7-10 P6-P9 Port output...
  • Page 59 AVX-7300 - Pin Functions (PE5230A) Pin No. Pin Name Format Function and Operation MODEL2 Model select analog input Not used AVSS DIMMER Dimmer control output ADPOW ADPOWER control output AVREF1 D/A converter reference voltage (Connects to VDD) ROMDATA Data output ROMCLK Clock output ROMCS...
  • Page 60 AVX-7300 Pin No. Pin Name Format Function and Operation Not used dsens Detach input REMIN Remote controlling signal input asens ACC sensor input bsens Backup input Not used Oscillator output Oscillator input Connection to grounding circuit Sub-clock terminal TESTIN Test mode AVDD Analog power for A/D converter AVREF0...
  • Page 61 AVX-7300 *OZ960IS I=3uA NDR_B CTIMR NDR_B I=6uA Protection PDR_A PDR_A hys. Soft COMP Start POFF ACTIVE hys. "HIGH" COMP POFF Reference VDDA PGND sub. GNDA Burst- Mode OPLAMP 2.50V Control Phase-Shift Controller Ignition LPWM PDR_C PDR_C 1.25V NDR_D NDR_D BA6951FS DECODER CTL AMP PREAMP...

  • Page 62: Explanation

    AVX-7300 - Electrical criteria 7.3 EXPLANATION Sensor signals 7.3.1 MECHANISM DESCRIPTION Encoder pulse - Outlines of the hardwares DEGPUL1 : Pulse sensor 1 for angular detection DEGPUL2 : Pulse sensor 2 for angular detection Driving Motor Sensor signals The angular adjustment and monitor ejection DEG0SW : monitor angle detection is 0 degrees control (position and angle) motor Control signals...
  • Page 63 AVX-7300 - Ejection Operation 1. When the OPEN/CLOSE key is pressed or when the ACC is turned ON, the motor is driven in a high- speed mode. 2. The motor is driven in a low-speed mode, when the DEG0SW is switched from L to H. 3.
  • Page 64 AVX-7300 - Angular adjustments 1. When the UP key is pressed, the monitor is raised from its initial position (100 degrees), and will continue to rise until the key is released. The operation will stop one pulse after the release of the UP key.
  • Page 65 AVX-7300 - Operations of the drive section for each set mode Mode setting Automatic ejection and retraction setting: ON ACC operation mode In OPEN condition During OPEN operation During CLOSE operation In CLOSE condition or when in or when in or when in or when in ACC OFF condition...

  • Page 66: Operational Flow Chart

    AVX-7300 7.3.2 OPERATIONAL FLOW CHART Power ON VDD=5V 68pin bsens 66pin BSENS=L asens 65pin ASENS=L dsens 63pin DSENS=L SWVDD←H 39pin ADPOW←L 6pin SYSPW←H 55pin Completes power-on operation.

  • Page 67: Operations And Specifications

    AVX-7300 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Key Finder The following diagram shows the display when it is deployed. OPEN/CLOSE button Display RESET button ANGLE buttons RGB button V.SOURCE button WIDE button...
  • Page 68 AVX-7300...

  • Page 69: Specifications

    AVX-7300 8.2 SPECIFICATIONS General Display Power source ..14.4 V DC (10.8 – 15.1 V allowable) Screen size/Aspect ratio ....7 inch wide/16:9 (effective display area: 154 × 87 mm) Grounding system ........Negative type Pixels .......... 336,960 (1,440 × 234) Max.

This manual is also suitable for:

Avx-7300/esAvx-7300/ew

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