Page 1
KS-AX7300 3 7 63 1515 0 SERVICE MANUAL POWER AMPLIFIER 49808 2003 KS-AX7300 L 13942296513 Area suffix J ------------ Northern America TABLE OF CONTENTS Important Safety Precautions ............1-2 Disassembly method .
KS-AX7300 3 7 63 1515 0 SECTION 1 Important Safety Precautions 1.1 Safety Precautions Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
KS-AX7300 3 7 63 1515 0 SECTION 2 Disassembly method CAUTION: If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it.
Page 4
KS-AX7300 3 7 63 1515 0 (5) Remove the 6 screws E retaining the panels on both sides Rear panel of the main unit. Fig.5 Front panel Fig.6 (6) Remove the 10 screws F attaching the Main board to the bottom of the main unit.
Page 5
KS-AX7300 3 7 63 1515 0 2.3 Removing the CCFL board (see Fig. 9 to 12) (1) Remove the bottom cover. (2) Then remove the Main board. CCFL cover (3) From the bottom side of the main unit, remove the 4 screws G retaining the CCFL cover.
KS-AX7300 3 7 63 1515 0 SECTION 3 Adjustment 3.1 Adjustment method (1) Check the voltage and frequency of the secondary toroidal FREQUENCY COUNTER coil. FREQUENCY:24.35kHz ± 50Hz VOLTAGE VALUE:55Vp-p TEST SET POWER SUPPLY 14.4V Main board Measuring Points...
Page 8
KS-AX7300 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49808) Printed in Japan 200303WPC http://www.xiaoyu163.com...
Page 9
KS-AX7300 3 7 63 1515 0 SCHEMATIC DIAGRAMS POWER AMPLIFIER KS-AX7300 CD-ROM No.SML200303 L 13942296513 Area Suffix Northern America Contents Block diagrams Standard schematic diagrams Printed circuit boards 2-8~11 u163 No.49808SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/03...
Page 10
KS-AX7300 3 7 63 1515 0 Safety precaution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. L 13942296513 u163 http://www.xiaoyu163.com...
Page 22
KS-AX7300 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49808SCH) 2003/03 http://www.xiaoyu163.com...
Page 23
KS-AX7300 3 7 63 1515 0 PARTS LIST [ KS-AX7300 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J -------------- Northern America L 13942296513 - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 4 Electrical parts list (Block No.01~03)
Page 24
KS-AX7300 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
Page 25
KS-AX7300 3 7 63 1515 0 Parts list (General assembly) Block No. M1MM Item Description Parts number Parts name Q'ty Area HEA-01-530AA HEAT SINK MAFPIT6859-0 FRONT PANEL MARPIT6864-0 REAR PANEL MABCIT6867-0 BOTTOM COVER MATC058406-0 CONTROL PANEL MASO051491-1 CCFL COVER...
Page 26
KS-AX7300 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area BJ101 25M/M JUMPER C348 ELE22UF/16V E.CAPACITOR CCFL LWL0640-2P WAFER C349 MAL473M50V...
Page 27
KS-AX7300 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area D101 1N4148 GE DIODE Q401 KTC3198GR TRANSISTOR D201 1N4148 GE DIODE...
Page 28
KS-AX7300 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R203 MET1/5WF22K METAL RESISTOR R396 MET1/5WF150K METAL RESISTOR R205 MET1/5WF56K METAL RESISTOR...
Page 29
KS-AX7300 3 7 63 1515 0 Electrical parts list (Main board) Block No. 01 Item Remarks Parts number Parts name Area R755 CAR1/5WJ100 CARBON RESISTOR R756 CAR1/5WJ100 CARBON RESISTOR R760 MET2WJ220 RESISTOR R770 MET2WJ100 METAL RESISTOR R771 MET2WJ100 METAL RESISTOR...
Page 30
KS-AX7300 3 7 63 1515 0 Electrical parts list (Sub board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area CON01 TM2007-T14G-09 HEADER PIN R132 CAR1/5WJ22K CARBON RESISTOR CON02 TM2007-T14G-09 HEADER PIN...
Page 31
KS-AX7300 3 7 63 1515 0 Electrical parts list (Sub board) Block No. 02 Item Parts number Parts name Remarks Area R436 CAR1/5WJ1K CARBON RESISTOR R437 CAR1/5WJ20K CARBON RESISTOR R438 CAR1/5WJ330K CARBON RESISTOR R439 CAR1/5WJ5.6K CARBON RESISTOR R440 CAR1/5WJ680K...
Page 32
KS-AX7300 3 7 63 1515 0 Packing materials and accessories parts list Block No. Block No. A1,A2,A7 L 13942296513 u163 3-10 http://www.xiaoyu163.com...
Page 33
WARRANTY CARD CHD1140-N CONNECTOR ASSY 2 300M/M-4P-A FUSE20A/32V AUTO FUSE MOCU014167-0 RING RUBBER MBSC02240-20 SCREW 4 STT1 BH 4X20 BK BT-20071B JVC CENTER LIST MDLA058422-0 CAUTION SHEET K I T KSAX6300-SCREW SCREW PARTS KIT 1 A5,A6,P6 L 13942296513 u163 3-11 http://www.xiaoyu163.com...