JVC UX-G28B Скачать руководство пользователя страница 6 | Manualshive

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1-6 (No.MB634)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

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Содержание UX-G28B

Страница 1: ...OPYRIGHT 2007 Victor Company of Japan Limited Lead free solder used in the board material Sn Ag Cu melting point 219 Centigrade TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 6 3 DISASSEMBLY 1 7 4 ADJUSTMENT 1 12 5 TROUBLESHOOTING 1 13 EV only SP UXG28 SP UXG28 CA UXG28 SERVICE POLICY No service part is available for this model Exchange only ...

Страница 2: ...device Mass Storage Class Compatible File System FAT16 FAT32 Bus Power supply Max 5V 500mA Tuner section FM tuning range 87 50 MHz 108 00 MHz AM MW tuning range 522 kHz 1 629 kHz CD player section Dynamic range 70 dB Signal to noise ratio 70 dB General Power requirement AC 230 V 50 Hz Power consumption 32 W at operation 0 7 W on standby Dimensions approx 144 mm 212 mm 254 mm W H D Mass approx 2 5 ...

Страница 3: ...ack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particular ly any exposed metal part having a return path to the chassis to a known good...

Страница 4: ...same safety characteristics as the recommended replacement parts shown in the Parts List of the Service Manual and may create shock fire or other hazards 4 The leads in the products are routed and dressed with ties clamps tubings barriers and the like to be separated from live parts high temperature parts moving parts and or sharp edges for the prevention of electric shock and fire hazard When ser...

Страница 5: ...t uses visible and or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated It is dangerous to defeat the safety switches 5 CAUTION If safety switches malfunction the laser is able to function 6 CAUTION Use of controls adjustments or performance of procedures other than those ...

Страница 6: ...1 6 No MB634 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Страница 7: ...e of REAR COVER See Fig 1 2 Remove the two screws B attaching the REAR COVER See Fig 2 3 Remove the two screws C two screws D and two screws E attaching the REAR COVER See Fig 3 4 Disconnect the connector wire from MAIN BOARD assem bly connected to connector CN1102 of the POWER BOARD assembly See Fig 4 Fig 1 Fig 2 Fig 3 Fig 4 A B C D E CN1102 ...

Страница 8: ...nnect the POWER CORD connected to connector CN1104 of the POWER BOARD assembly 3 Remove the three screws F attaching the POWER BOARD assembly Fig 5 3 1 3 Removing the TUNER PACK See Fig 6 7 1 Remove the two screws G attaching the TUNER PACK See Fig 6 2 Disconnect the card wire from MAIN BOARD assembly connected to connector of TUNER PACK See Fig 7 Fig 6 Fig 7 F CN1104 CN1103 CN1101 G connector ...

Страница 9: ...y connected to connector CN403 of the MAIN BOARD assembly See Fig 9 4 Disconnect the connector wire from USB BOARD assem bly connected to connector CN302 of the MAIN BOARD assembly See Fig 9 5 Remove the two screws H attaching the MAIN BOARD as sembly See Fig 9 6 Disconnect the connector wire from MAIN BOARD assem bly connected to connector CN702 of the CD BOARD as sembly See Fig 10 7 Remove the s...

Страница 10: ...RD assembly See Fig 12 13 1 Disconnect the connector wire from USB BOARD assem bly connected to connector CN703 of the CD BOARD as sembly See Fig 12 2 Remove the two screws J attaching the USB BOARD as sembly See Fig 13 Fig 12 Fig 13 CN703 J ...

Страница 11: ...ing the CD MECHANISM assembly See Fig 14 1 Remove the four screws K attaching the CD MECHANISM assembly Fig 14 3 1 7 Removing the CD DOOR assembly See Fig 15 1 Remove the two screws L attaching the CD DOOR assem bly Fig 15 K K L ...

Страница 12: ...1 8 Removing the FRONT BOARD assembly See Fig 16 1 Remove the VOLUME KNOB 2 Remove the eight screws M attaching the FRONT BOARD assembly Fig 16 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT M M ...

Страница 13: ...OTOR CD DOOR LEAF SW CD 8V Q911 764 B1185F 7809 B772 RECTIFIER RECTIFIER SMALL TRANSFORMER POWER TRANSFORMER AC INPUT L SPK OUTPUT R SPK OUTPUT JK302 HEADPHONE L OUT R OUT FM AM RDS TUNER BOARD STANDBY R OUT L OUT FM ANT AM ANT AUX IN POWER AMP SIGNAL SLECT SW VOL CONTROL 7805 CD 8V CD 8V 5V 1117 33 Q404 STANDBY Q1101 Q1102 RELAY Q407 9V 9V VCC M M IC710 TS2501 IC713 CE2711 IC707 IC701 74HC4094 AT...

Страница 14: ... No MB634 1 14 M E M O ...

Страница 15: ...00uF 102 104 104 102M 102M 102M 3K9 102M 3K9 C536 C507 C519 C523 C524 C518 C532 C404 Q301 C333 C515 C320 22uF 16V 272M C309 1uF C509 124M C508 C516 104M 104M C520 4 7uF C502 22uF C334 Q302 C705 C717 24P C718 24P 32 768K X702 IC707 Atmega8 PB7 PB6 VCC GND VCC GND PD4 PD3 PB5 AVCC ADC6 AREF GND ADC7 PC0 PC1 PD5 PD6 PD7 PB0 PB1 PD0 PD1 PD2 PC6 PC5 PC4 PC3 PC2 PB2 PB3 PB4 L707 10uH C702 D413 IN4148 D4...

Страница 16: ...UT AC 230V IN DGND 6 5V PT1101 T1101 P CON RECTIFIER PWB USB PWB SW710 CD PLAY SW701 TIMER SW703 STOP SW708 TU UP SW712 MEMORY SW705 PRESET DN B SKIP SW702 SLEEP CLOCK SW709 USB PLAY SW706 RESET UP F SKIP SW713 ON STAND BY TUNER BAND C709 C712 C711 C713 D702 IN4148 47uF 1uF NC 4K7 4K7 104 104 100 C714 C788 SLEEP HBS JAZZ ROCK POP CLASSIC ST MONO MHz KHz REC TAPE USB CD MP3 WMA TRACK REPEAT 1 GROUP...

Страница 17: ...K R946 1K R945 1K R925 22K R927 12K R929 2 2K R928 2 2R R941 2 2R USB5V CD_VCC MOTOR Sled MOTOR Spindle R930 22K R926 22K R924 5 6K 10K 10K 10K 10K 10K 10K 68K 13K 13K 13K 13K 68K R923 5 6K R922 12K R920 68K R962 NC R1 4K3 R948 10UH L910 8550 C B E Q912 NC R976 NC R977 75K R960 10R R950 12K R919 R900 R901 R902 R903 R904 R905 R907 R908 R909 R910 33K R914 1M R949 1K R961 33K R915 33K R916 33K R917 R...

Страница 18: ... DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 VCC1 VCC2 BA A11 CLK CKE CS RAS CAS RY BY VCC I VPP I WP GND1 GND2 RST BYTE A15 DQ15 A 1 AX1 AX2 AX3 AX4 AX5 AX6 AX7 AX8 AX9 AX10 AX11 AX12 AX13 SD_BAO AX14 SD_AB1 AX15 SD_nCAS AX16 ND_ALE SD_nRAS AX17 ND_CLE AX18 AX19 AX20 DQM1 AX21 DQM0 XD1 XD2 XD3 XD4 XD5 XD6 XD7 XD8 X...

Страница 19: ... M E M O ...

Страница 20: ... No MB634 VPT Printed in Japan Victor company of Japan Limited Audio Video Systems category 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan ...

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