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Panasonic SB-VK72, Service Manual

The Panasonic SB-VK72 Service Manual is a comprehensive guide that allows you to effortlessly set up and operate your audio device. This user-friendly manual is available for free download at 88.208.23.73:8080, ensuring you have all the necessary instructions at your fingertips.

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4.2. (B) Main P.C.B.

A

B

C

D

E

F

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1

2

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8

9

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B

MAIN P.C.B (REPX0486P)

RIGHT

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TUNER PACK
(REP1999B)

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FM ANT

AMT

GND

GND

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IF

OSC

AUX

LINE OUT

CN28

TO BOTTO

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TO TOP

FAN

K2907

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K2802 VK72D

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29

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27 25 23 21 19 17 15 13 11

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1

26

SA-VK725DGC

Summary of Contents for SB-VK72

Page 1: ... Ltd All rights reserved Unauthorized copying and distribution is a violation of law SA VK725DGC Colour S Silver Type Sensitivity 2 5 µV IHF S N 26dB 2 2 µV Antenna terminals 75 Ω unbalanced Amplitude Modulation AM Frequency range 522 1629 kHz 9 kHz step 520 1630 kHz 10 kHz step AM Sensitivity S N 20dB at 999 kHz 560 µV m Audio performance Amplifier Input sensitivity Input impedance Aux 250 mV 20 ...

Page 2: ...stem G 726 audio system DivX 3 11 4 x 5 x GMC Global Motion Compensation is not supported The total combined maximum number of recognizable audio picture and video contents and groups 4000 audio picture and video contents and 400 groups Pick up Wavelength CD 785 nm DVD 662 nm Audio output Disc Number of channels 5 1 ch FL FR C SL SR SW Audio performance measurement at Line out terminal Frequency r...

Page 3: ...1 A DVD Module Circuit 7 3 2 B Main Circuit 14 3 3 I Transformer Circuit 23 4 Printed Circuit Board Updating 24 4 1 A DVD Module P C B Side A B 24 4 2 B Main P C B 26 4 3 I Transformer P C B 28 5 Illustration of IC s Transistors and Diodes Updating 29 6 Parts Location and Replacement Parts List Updating 30 6 1 Cabinet 31 6 2 Electrical Parts List Updating 33 6 3 Packing Materials Accessories Parts...

Page 4: ...1 Operating Procedures 4 SA VK725DGC ...

Page 5: ...5 SA VK725DGC ...

Page 6: ...2 Disc information 6 SA VK725DGC ...

Page 7: ...VIN3 RFINP RFINN LPC1 VREFH VIN6 VIN5 LPC2 RAM_CD LB8260 ERJ3GEY0R00V LB8259 ERJ3GEY0R00V LB8258 ERJ3GEY0R00V LB8257 ERJ3GEY0R00V LB8561 J0JBC0000042 LB8551 J0JBC0000042 LB8531 ERJ2GE0R00X R8533 0 R8531 1 5K C8533 0 1 C8256 0 1 C8253 0 1 R8251 6 8 RX8532 56 x 4 RX8533 56 x 2 C8531 100P C8532 220P RX8531 56 x 2 IC8251 C0GBG0000048 DRIVE IC IC8251 TO OPTICAL PICKUP UNIT CIRCUIT ON SCHEMATIC DIAGRAM ...

Page 8: ...0 1 C8551 0 1 C8530 0 1 R8559 15K R8558 47K R8557 51 R8556 56 C8553 6 3V47 R8555 2 2 R8553 1K R8552 1K R8551 0 R8554 68 C8552 16V10 R8567 51 R8568 47K R8566 56 C8563 6 3V47 R8565 2 2 R8563 1K C8564 1 C8562 16V10 R8564 22 R8562 1K R8561 0 C8550 6 3V33 C8554 1 QR8571 UNR511V00L SUPPLY CONTROL SWITCH Q8562 B1ADGB000008 SWITCH Q8552 B1ADGB000008 SWITCH Q8561 2SD1819A0L SWITCH Q8551 2SD1819A0L SWITCH I...

Page 9: ...8430 CL8491 ERJ2GE0R00X OP_CPU CMD LB8692 ERJ2GEJ101X OP_CPU STAT LB8693 ERJ2GEJ101X FL8103 F1H0J1050022 VCC GND GND VCC CPU_CLK CPU_CMD CPU_STAT Y PY G CB PB B CR PR R Y C D 1 2V C8695 0 1 C8691 0 1 LB8690 J0JBC0000044 IC8421 IC8691 C0JBAA000346 AND GATE LOGIC IC IC8421 C0FBBK000050 8 CH DAC IC QR8420 UNR521100L AUDIO MUTING SWITCH IC8695 C0JBAA000346 AND GATE LOGIC IC K8106 ERJ3GEY0R00V MAIN SIG...

Page 10: ...NOT SUPPLIED IC8611 IC8651 RFKWMH90E160 16M FLASH ROM IC RX8001 10K x 2 STBDAC EXDT8 EXDT1 EXDT9 EXDT2 EXDT10 EXDT3 EXDT11 EXDT4 EXDT12 EXDT5 EXDT13 EXDT6 EXDT14 EXDT7 EXDT15 CL8652 NEXCE NEXOE A 5V R8333 33 Y PY G R8332 0 R8331 100 R8334 1K C8331 0 1 L8330 G1C100K00019 Y PY G_A C8330 6 3V47 IC8651 R8336 33 CB PB B R8335 100 R8337 1K C8335 0 1 CB PB B_A R8342 33 CR PR R R8341 100 R8343 1K C8341 0 ...

Page 11: ...T C8606 0 1 R8601 100K C8601 0 1 IC8606 C0EBE0000455 RESET IC IC8601 C0EBA0000029 RESET IC C8020 0 1 C8021 0 1 C8022 0 1 C8006 0 1 EXADR4 EXADR5 EXADR6 EXADR7 EXADR17 EXADR18 EXADR19 EXADR8 EXADR9 EXADR10 EXADR11 EXADR12 EXADR13 EXADR14 EXADR15 EXADR16 EXDT15 EXDT7 EXDT14 EXDT5 EXDT12 EXDT4 EXDT6 EXDT13 EXDT11 EXDT3 EXDT10 EXDT2 EXDT9 EXDT1 EXDT8 EXDT0 NEXOE NEXCE EXADR0 CL8058 CL8059 CL8057 CL806...

Page 12: ...7 VDD33 VSS MA10 MA8 BA1 VDD12 VSS MA9 BA0 MA11 NCSM NRAS NCAS VSS MCKI VDD33 MCK VSS NWE DQM1 DQM0 VDD12 MDQ7 MDQ8 VSS VDD33 MDQ6 MDQ9 MDQ5 MDQ10 MDQ4 MDQ11 MDQ3 MDQ12 VSS VDD33 MDQ2 MDQ13 MDQ1 MDQ14 MDQ0 MDQ15 VDD33 VSS TRCST TRCDATA3 TRC DATA2 IC8001 MN2DS0009AP DV3 2 IC C8012 0 1 C8016 0 1 C8017 0 1 C8004 0 1 C8003 0 1 CL8021 CL8022 CL8023 CL8024 CL8025 CL8026 CL8027 CL8028 CL8029 CL8030 R8003...

Page 13: ... 15K R8221 8 2K R8225 8 2K C8312 1 LB8401 J0JBC000042 C8401 15P R8621 1M R8622 1K C8622 12P C8621 12P X8621 H0J270500085 C8305 0 1 RX8401 100 x 2 R8401 100 C8025 0 1 CL8031 C8001 4V330 C8011 6 3V100 LB8001 J0JHC0000045 LB8011 J0JHC0000045 D 3 3V AD1 D 3 3V D 3 3V R8421 0 CL8213 CL8212 AMUT SBO3 STBDAC SBT3 ADOUT2 RX8403 100 x 2 ADOUT0 ADOUT1 RX8402 100 x 2 CPU_CLK CPU_CMD CPU_STAT TRCDATA1 TRCDATA...

Page 14: ...P C2039 0 01 C2850 100P L2815 J0JCC0000120 C2437 1 C2047 6 3V1000 R2834 100K C2440 0 1 R2822 75 JK2801 C2759 0 01 C2434 6 3V1000 R2830 100K R2810 10K R2807 100K D2909 B0ACCK000005 R2849 1K R2959 2 2 C2965 0 22u R2112 100K R2828 0 R2846 56K R2237 100 C2110 50V47u R2114 47K L2810 J0JBC0000041 R2135 27K C2855 50V4 7 C2236 1000P C2111 1000P R2211 2 7K Q2814 B1GDCFGA0018 MUTING SWITCH R2212 100K C2136 ...

Page 15: ... Y G YGND YGND CR PR R SL D 5V SUBW D 5V FR ADACGND ZFLAG ADACGND SR ADACGND DGND DGND A 5V AGND DGND DGND CENTER ADACGND D 5V MOT10V DVD_STA DVD_CMD DVD_CLK FRONT_R FRONT_L SL S_C S_Y CR_R CB_B PY ADAC5V CENT SUBW SR MIX_R MIX_L Q2806 D2836 B0EAKM000117 R2814 10K C2500 16V10 C2200 50V1 C2100 50V1 C2312 16V10 R2827 0 CN2813 C2600 50V10 C2400 16V10 TO CD LOADING CIRCUIT CN1 ON SCHEMATIC DIAGRAM 26 ...

Page 16: ...3 50V1 R2956 220 C2931 1000P R2942 4 7K C2904 2700P R2938 3 9K C2202 16V10 C2102 16V10 R2863 0 R2553 100 9 0V KA_ROUT 9 0V KA_LOUT LINE_LOUT LINE_ROUT R2059 0 R2209 12K R2107 47K R2210 100K R2110 100K C2104 50V10 C2106 10P R2207 47K C2107 0 01 C2206 10P C2205 50V33 R2109 12K R2108 3 3K R2208 3 3K C2204 50V10 R2106 1K C2208 50V47 C2108 50V47 R2206 1K IC2814 KIA4558FEL DUAL OP AMP C2105 50V33 C2207 ...

Page 17: ...0018 MUTING SWITCH IC2815 KIA4558FEL DUAL OP AMP R2510 18K R2855 56K R2310 270 R2407 56K Q2825 B1ABEB000002 SWITCH R2228 0 C2864 50V22 R2623 18K R2128 0 Q2823 B1GDCFGA0018 MUTING SWITCH R2410 270 R2126 0 R2620 56K C2310 50V1 R2307 56K R2615 6 8K C2603 50V3 3 R2406 1 8K R2508 56K CN2802 Q2820 B1ABEB000002 MUTING SWITCH C2604 1000P R2619 56K R2506 270 C2406 50V2 2 R2854 56K C2306 50V2 2 R2841 1K R21...

Page 18: ... LINE_LOUT EXT_L EXT_R SS_S SS_C LIN MICIN LF RSIN LSIN RCIN LCIN SF RIN RF DGND AGND SOUT ROUT COUT VCC VEE CLOCK LOUT DATA IC2800 C1BB00000979 ANALOG SURROUND IC C2114 10V1 C2857 16V10 R2091 0 C2140 0 082 C2138 16V10 C2238 16V10 R2139 12K C2237 0 022 C2320 10V0 1 R2115 18K R2239 12K C2213 0 15 C2112 50V1 C2212 50V1 C2522 10V0 1 C2137 0 022 C2239 3300P R2215 18K C2858 16V10 C2139 3300P C2214 10V1...

Page 19: ...61 0 CP6803 R2229 100 R2238 33K R2231 33K Q2704 B1GDCFJJ0047 MOTOR SWITCH R2064 0 R2606 10K R2066 0 R2129 100 C2234 1000P PBL 9 0V DCDET FAN R2590 0 R2068 0 C2986 16V10 Q2911 2SB0709AHL FAN MOTOR DRIVE R2587 2 2M R2581 1 2K Q2910 2SD0601AHL DETECT SWITCH R2592 100K D2914 CN2815 R2588 4 7K R2582 100K Q2909 2SD0592ARA SWITCH R2593 4 7K C2983 0 01 R2589 3 3K R2583 220K R2585 120K C2987 10V10 C2984 0 ...

Page 20: ...00 R2791 1K R2086 0 C2722 10V22u C2961 1000P C2725 100P R2847 10K R2911 47K R2957 680 C2746 0 01 R2723 15K C2743 1000P R2926 100 C2724 100P R2990 10K R2798 100 C2749 50V0 1 C2977 470P C2973 16V100 C2728 100P D2910 B0ACCE000003 R2792 1K C2981 470P R2912 47K C2723 100P C2744 0 01 C2747 50V0 1 C2748 50V0 1 C2721 0 01 L2802 G0C3R3JA0030 R2662 4 7K D2908 B0ACCK000005 R2910 4 7K C2720 470P R2850 4 7K C2...

Page 21: ...00P R2776 1K R2733 1K C2705 100P C2711 100P R2737 1K R2917 10M C2710 100P R2864 0 X6801 H0A327200115 C2713 1000P C2734 39P R2747 4 7K C2714 100P C2737 15P C2712 1000P R2793 100 R2089 0 C2978 100P C2704 100P R2742 1K C2716 100P R2088 0 R2788 100K R2778 100 R2752 100 R2735 10K X6800 H2A1005A0005 R2732 1K R2750 1K R2077 0 R2784 100 R2782 1K R2739 1K R2789 100 IC2818 C2CBJG000653 MICROPROCESSOR R2988 ...

Page 22: ...DE_1 PLUNGER2 PLUNGER1 PHOTO_2 PHOTO_1 HP_MUTE JOG_B JOG_A KEY3 KEY2 ED_A E_CLK E_CS VREF VREF SYNC DATA CLK R2999 0 D2905 B0ACCK000005 Q2702 B1GBCFJJ0051 SWITCH R2072 0 C2732 0 01 R2922 22K R2920 10K IC2816 C3EBEG000072 EEPROM IC NOT SUPPLIED C2733 50V2 2 R2913 10K C2738 0 022 R2667 22K Q2710 B1GBCFJJ0051 SYNC SWITCH C2739 330P D2906 B0ACCK000005 R2914 4 7K C2741 35V4 7 CN2811 C2740 330P R2923 2 ...

Page 23: ... 3 3K D9512 B0EAKM000125 D9517 B0EAKM000125 C9510 25V470 C9511 25V470 D9509 B0EAKM000125 R9504 1 5K R9505 1 2K C9503 1000P R9503 820K D9510 B0AACK000004 D9511 B0EAKM000125 C9502 0 01 D9515 B0BA7R000005 F1 250V 3 15A FC2 FC1 Z9500 ERZV10V511CS TO POWER CIRCUIT H9500 ON SCHEMATIC DIAGRAM 23 FL_GND FL2 FL1 PCONT SYS6V SYNC VP DGND DVD_PCONT DVD_AC D 5V DGND SUB B VccH VccH VccL AC_GND AC_GND VccL Vcc...

Page 24: ...321 C8528 C8504 C8522 C8521 C8511 C8526 C8512 C8525 C8523 C8527 C8505 C8524 C8502 C8503 C8231 R8230 C8024 C8232 R8232 R8231 C8008 C8602 C8606 IC8601 IC8606 C8601 R8601 R8003 C8023 RX8611 R8611 C8529 R8211 D8211 C8541 R8541 C8226 C8225 R8225 C8222 C8221 R8221 C8304 C8305 LB8401 RX8401 C8022 C8021 C8007 C8006 C8020 RX8403 R8401 RX8402 C8017 C8019 C8018 IC8001 C8005 C8313 R8314 R8313 C8312 C8015 IC84...

Page 25: ...67 R8568 FP8531 TO OPTICAL PICKUP UNIT C8695 C8691 IC8695 IC8691 QR8111 RX8111 L8330 C8330 C8252 L8302 L8301 C8301 C8201 C8302 C8501 L8501 L8201 R8002 C8514 C8513 C8515 C8516 C8203 C8621 C8311 R8311 R8312 C8306 R8621 R8622 C8026 C8622 C8025 C8652 C8651 C8303 LB8001 LB8011 C8251 IC8651 LB8690 IC8611 C8001 C8611 C8011 C8202 C8057 C8056 C8052 C8051 C8053 C8054 IC8051 C8055 R8013 RX8020 X8621 SIDE B C...

Page 26: ...R2 R2202 R2102 R2213 R2155 R2130 R2230 R2998 R2 W2104 R2862 R2096 R2097 Q2917 R2691 R2692 R2113 R2254 Q2919 R3630 R3631 R3634 W2131 W2130 W210 W2101 W2126 R3627 R3626 W2127 W2128 K2906 K2905 W2099 W2096 W2095 W2094 W2091 W2090 R2693 C2650 W2087 R3640 R3641 R3642 D29 W3002 W3003 C2620 C2621 C2622 W2443 X2603 C2630 W2441 W2442 W2440 W2439 W2438 C2641 C2642 C2639 C2619 C2615 W2434 W2433 W2432 C2614 W...

Page 27: ...Q2816 Q2815 Q2822 R2854 R2620 R2852 R2856 C2903 R2702 R2988 R2859 R2851 R2589 R2590 Q2920 R3628 R3629 R3634 W2132 C2719 W2133 W2103 W2101 R2762 C2754 R3637 R3639 R3638 C3623 R3642 D2915 D2914 D2916 D2917 D2918 D2919 K9999 W2999 W3011 W2125 W3005 W3004 R2754 R2793 C2615 W2434 W2432 C2614 W2430 W2429 W2428 W2427 C2627 Q2606 W2415 W2414 W2413 W2410 W2431 CF2602 W2760 W2762 C2100 C2200 C2975 C2974 C20...

Page 28: ...8 W9532 W9529 Z9500 W9521 W9520 R9500 D9508 D9514 C9509 D9513 C9512 R9521 FP9500 1A R9520 R9519 D9516 C9517 Q9503 C9505 FP9501 4A C9506 C9513 D9504 W9519 W9511 W9514 W9515 W9510 W9509 C9501 W9517 W9516 D9500 W9518 Q9500 R9518 W9506 W9507 W9508 W9513 R9516 R9515 R9507 R9512 R9514 R9513 R9509 R9511 R9522 R9510 IC9500 L9500 C9515 D9503 D9502 C9507 D9501 W9502 Q9504 C9514 R9508 CN9500 R9517 W9503 W953...

Page 29: ...reference to page 120 section 25 of the original service manual for SA VK72DGCS GS S Below are the updates C0EBA0000455 1 B1ADGB000008 2SB1218ARL XP0621400L 1 3 4 5 2 MA2J11100L 1 2 3 C0EBA0000029 1 MN2DS0009AP 256P C3ABPG000145 54P Ca Cathode Anode A 29 SA VK725DGC ...

Page 30: ...ode Capacitor values are in microfarads µF unless specified otherwise P Pico farads pF F Farads Resistance values are in ohms unless specified otherwise 1K 1 000 OHM The marking RTL indicates that the Retention Time is limited for this items After the discontinuation of this assembly in production the item will continue to be available for a specific period of time The retention period of a availa...

Page 31: ...6 1 Cabinet 6 1 1 Cabinet Parts Location 31 SA VK725DGC ...

Page 32: ...32 SA VK725DGC ...

Page 33: ...ame Description Remarks 23 RGRX0052D C REAR PANEL M 42 RKWX0252J V FL WINDOW M Ref No Part No Part Name Description Remarks FP8531 K1MN26B00094 FUSE PROTECTOR M HOLDER H9502 REXX0479 2P CONNECTOR WIRE M RESISTORS R2217 ERJ3GEYJ682V 6 8K 1 16W M R2723 ERJ3GEYJ153V 15K 1 16W M R3632 ERJ3GEYJ103V 10K 1 16W M R8002 ERJ2GEJ473X 47K 2W M R8003 ERJ2GEJ473X 47K 2W M R8012 ERJ2GEJ220X 22 2W M R8013 ERJ2GEJ...

Page 34: ... 0 1 16V M Ref No Part No Part Name Description Remarks P1 RPGX1469 PACKING CASE M A2 K2CQ2CA00002 AC CORD M A3 RQT8251 G O I BOOK En M Ref No Part No Part Name Description Remarks C8325 ECJ0EF1C104Z 0 1 16V M C8330 F2G0J470A031 47P 6 3V M C8331 ECJ0EF1C104Z 0 1 16V M C8335 ECJ0EF1C104Z 0 1 16V M C8341 ECJ0EF1C104Z 0 1 16V M C8401 ECJ0EC1H150J 15P 50V M C8501 F2G0J101A031 100P 6 3V M C8505 ECJ0EF1...

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