Panasonic SA-VK725DGC Service Manual
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Panasonic SA-VK725DGC Service Manual

Dvd stereo system
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Please use this manual together with the service manual for Model No. [SA-VK72DGCS/GS-S, Order No.
MD0506272C3].

Specifications

n AMPLIFIER SECTION
RMS Output Power: Dolby Digital Mode
Main
70 W per channel (6 Ω), 1 kHz, 10% THD
Surround Ch
55 W per channel (6 Ω), 1 kHz, 10% THD
Center Ch
70 W per channel (6 Ω), 1 kHz, 10% THD
Total RMS Dolby Digital mode power
PMPO output power
n FM/AM TUNER, TERMINALS SECTION
Preset station
Frequency Modulation (FM)
Frequency range
320 W
4000 W
FM 15 stations
AM 15 stations
87.50 - 108.00 MHz (50 kHz step)
DVD Stereo System
SA-VK725DGC
Colour
(S) .... Silver Type
Sensitivity
S/N 26dB
Antenna terminals
Amplitude Modulation (AM)
Frequency range
AM Sensitivity S/N 20dB at 999 kHz
Audio performance (Amplifier)
Input sensitivity/Input impedance
Aux
Phone jack
Terminal
Mic jack
Sensitivity
© 2005 Matsushita Electric Industrial Co. Ltd.. All
rights
reserved.
distribution is a violation of law.
ORDER NO. MD0507287A3
2.5 µV (IHF)
2.2 µV
75 Ω (unbalanced)
522 - 1629 kHz (9 kHz step)
520 - 1630 kHz (10 kHz step)
560 µV/m
250 mV, 20 kΩ
Stereo, 3.5 mm jack
0.7 mV, 600 Ω
Unauthorized
copying
and

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Summary of Contents for Panasonic SA-VK725DGC

  • Page 1: Specifications

    ORDER NO. MD0507287A3 DVD Stereo System SA-VK725DGC Colour (S) ..Silver Type Please use this manual together with the service manual for Model No. [SA-VK72DGCS/GS-S, Order No. MD0506272C3]. Specifications n AMPLIFIER SECTION Sensitivity 2.5 µV (IHF) RMS Output Power: Dolby Digital Mode S/N 26dB 2.2 µV...
  • Page 2 Exif Ver 2.1 JPEG Baseline files Picture resolution: between 160 x 120 and 6144 x 4096 pixels (Sub sampling is 4:2:2 or 4:2:0) MPEG4 data recorded with Panasonic SD multi cameras or DVD video recorders. Conforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/G.726 audio system...

  • Page 3: Table Of Contents

    SA-VK725DGC Notes: 1. Specifications are subject to change without notice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer. CONTENTS Page Page 1 Operating Procedures 4.2. (B) Main P.C.B. 2 Disc information 4.3. (I) Transformer P.C.B.

  • Page 4: Operating Procedures

    SA-VK725DGC 1 Operating Procedures...
  • Page 5 SA-VK725DGC...

  • Page 6: Disc Information

    SA-VK725DGC 2 Disc information...

  • Page 7: Schematic Diagram (Updating)

    SA-VK725DGC 3 Schematic Diagram (Updating) Note: With reference to page 81~87, 89~97 & 104 (section 22) of the original service manual for SA-VK72DGCS/GS-S. Below are the updates. 3.1. (A) DVD Module Circuit SCHEMATIC DIAGRAM - 2 : +B SIGNAL LINE...
  • Page 8 SA-VK725DGC SCHEMATIC DIAGRAM - 3 : +B SIGNAL LINE DVD MODULE CIRCUIT D+3.3V IC8111 C0CBCBD00018 3.3 REGULATOR IC TL8111 D+5V C8111 C8112 IC8111 RX8111 (22K x 2) C8113 470P Cont QR8111 XP0621400L SWITCH QR8571 D+1.2V UNR511V00L CL8571 SUPPLY CONTROL SWITCH...
  • Page 9 SA-VK725DGC SCHEMATIC DIAGRAM - 4 : MAIN SIGNAL LINE : +B SIGNAL LINE : DVD VIDEO SIGNAL LINE DVD MODULE CIRCUIT FP8101 VGND Y/PY/G Y/PY/G LB8303 J0JBC0000042 VGND CB/PB/B CB/PB/B LB8304 J0JBC0000042 VGND CR/PR/R CR/PR/R LB8305 J0JBC0000042 VGND LB8301 J0JBC0000042...
  • Page 10 SA-VK725DGC SCHEMATIC DIAGRAM - 5 : +B SIGNAL LINE : DVD VIDEO SIGNAL LINE DVD MODULE CIRCUIT EXADR15 EXADR16 EXADR14 XBYTE EXADR13 EXADR12 EXDT15 DQ15/A-1 EXADR11 EXDT7 EXADR10 EXDT14 DQ14 EXADR9 EXDT6 EXADR8 EXDT13 DQ13 EXADR19 EXDT5 EXADR20 EXDT12 DQ12...
  • Page 11 SA-VK725DGC SCHEMATIC DIAGRAM - 6 : +B SIGNAL LINE DVD MODULE CIRCUIT C8051 MDQ0 MDQ15 DQ15 C8052 VDDQ VSSQ MDQ14 MDQ1 DQ14 MDQ2 DQ13 C8057 RX8012 (82 x 4) VSSQ VDDQ MDQ3A MDQ3 CL8053 MDQ12 MDQ3 DQ12 MDQ2A C8018 MDQ2...

  • Page 12: C8505 0.1

    SA-VK725DGC SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE DVD MODULE CIRCUIT RX8018 RX8017 (22 x 2) (82 x 4) MDQ18 TRCDATA1 TRCDATA0 VDD33 TRCCLK MDQ28 EXTRGO MDQ19 SDATA MDQ27 SCLOCK MDQ20 EXTRG1 VDD33 VDD33 MDQ26 VDIO0 MDQ21 VDIO1 MDQ25...

  • Page 13: Extrgo

    SA-VK725DGC SCHEMATIC DIAGRAM - 8 : CD-DA SIGNAL LINE : DVD VIDEO SIGNAL LINE : +B SIGNAL LINE : DVD AUDIO SIGNAL LINE DVD MODULE CIRCUIT R8041 LB8011 J0JHC0000045 D+3.3V D+1.2V C8001 C8011 LB8001 4V330 6.3V100 J0JHC0000045 RX8031 (4.7K x 2)

  • Page 14: B) Main Circuit

    SA-VK725DGC 3.2. (B) Main Circuit SCHEMATIC DIAGRAM - 10 : AUX SIGNAL LINE : DVD VIDEO SIGNAL LINE MAIN CIRCUIT : +B SIGNAL LINE : MAIN SIGNAL LINE : VIDEO SIGNAL LINE Q2814 C2855 R2846 B1GDCFGA0018 50V4.7 R2849 MUTING SWITCH...
  • Page 15 SA-VK725DGC SCHEMATIC DIAGRAM - 11 CD LOADING CIRCUIT (CN1) ON : +B SIGNAL LINE : DVD VIDEO SIGNAL LINE SCHEMATIC DIAGRAM - 26 MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE CN2810 14 13 12 11 10 D2911...
  • Page 16 SA-VK725DGC SCHEMATIC DIAGRAM - 12 TRANSFORMER CIRCUIT (H9502/W9502) : +B SIGNAL LINE : MIC SIGNAL LINE ON SCHEMATIC DIAGRAM - 25 MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE CN2814 C2108 R2109 R2108 50V47 3.3K C2106 R2106 C2104...
  • Page 17 SA-VK725DGC SCHEMATIC DIAGRAM - 13 : +B SIGNAL LINE MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE C2602 C2306 C2406 C2119 C2219 50V2.2 50V4.7 50V2.2 50V4.7 Q2815 Q2816 R2615 R2218 R2306 R2406 R2118 6.8K 1.8K 1.8K R2852 R2620...
  • Page 18 SA-VK725DGC SCHEMATIC DIAGRAM - 14 BOTTOM : +B SIGNAL LINE : AUX SIGNAL LINE : FM/AM SIGNAL LINE MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE : TAPE PLAYBACK SIGNAL LINE CN2816 Q2916 Q2915 2SB0709AHL D2917, D2919 2SB0709AHL...
  • Page 19 SA-VK725DGC SCHEMATIC DIAGRAM - 15 : +B SIGNAL LINE : FM/AM SIGNAL LINE MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE : TAPE PLAYBACK SIGNAL LINE CN2815 Q2911 Q2912 D2914, D2916 2SB0709AHL 2SB0709AHL B0ACCK000005 FAN MOTOR DRIVE FAN MOTOR DRIVE...

  • Page 20: Vref

    SA-VK725DGC SCHEMATIC DIAGRAM - 16 MAIN CIRCUIT : +B SIGNAL LINE VREF+ BASS LEDCONT PHOTO_1 R2791 PHOTO_2 R2792 DECK2 R2797 R2672 KEY1 KEY2 R2798 KEY3 R2708 C2718 470P R2723 R2086 R2658 C2721 C2719 0.01 0.01 VREF+ R3634 C2752 C2722 10V22u...
  • Page 21 SA-VK725DGC SCHEMATIC DIAGRAM - 17 MAIN CIRCUIT : +B SIGNAL LINE C2708 R2788 100P 100K C2709 C2742 100P 0.01 C2710 100P R2075 W3003 W3002 R3643 R2074 DVD_MUTE R2790 MODEL_ DVD_MUTE R2776 ASP_CK BASS ASP_CK R2775 ASP_DA MIC_1L ASP_DA WIDE_1 R2774...
  • Page 22 SA-VK725DGC SCHEMATIC DIAGRAM - 18 : +B SIGNAL LINE : MIC SIGNAL LINE MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE HPOUT_FL HPOUT_FL HPGND HPOUT_FR HPOUT_FR MICGND HP_MUTE HP_MUTE KEY1 KEY1 KEY2 KEY2 KEY3 KEY3 GND2 JOG_A JOG_A...

  • Page 23: I) Transformer Circuit

    SA-VK725DGC 3.3. (I) Transformer Circuit SCHEMATIC DIAGRAM - 25 : +B SIGNAL LINE TRANSFORMER CIRCUIT : -B SIGNAL LINE R9517 T9500 AC_IN G4C7AGK00008 +VccH D9504 +VccH B0FBAM000009 K9810 K9811 K9812 C9501 ERDS1FVJ120T ERDS1FVJ120T ERDS1FVJ120T +VccL AC_GND AC_GND R9836 -VccL POWER...

  • Page 24: Printed Circuit Board (Updating)

    SA-VK725DGC 4 Printed Circuit Board (Updating) Note: With reference to page 106~116 (section 23) of the original service manual for SA-VK72DGCS/GS-S. Below are the updates. 4.1. (A) DVD Module P.C.B. (Side: A & B) DVD MODULE P.C.B (REP3908B) C8530 LB8530...
  • Page 25 SA-VK725DGC DVD MODULE P.C.B (REP3908B) FP8531 TO OPTICAL PICKUP UNIT R8263 C8262 R8261 C8258 C8253 C8257 Q8552 C8251 Q8562 R8554 C8554 R8558 R8553 R8563 R8564 R8565 R8559 C8561 C8551 C8564 C8550 CL8006 L8550 IC8611 L8330 C8501 C8201 C8516 C8515 C8113...

  • Page 26: B) Main P.c.b. 4.3. (I) Transformer P.c.b

    SA-VK725DGC 4.2. (B) Main P.C.B. MAIN P.C.B (REPX0486P) LINE OUT SUBWOOFER FM ANT AM ANT JK2803 JK2601 IC2815 JK2804 W2881 R2848 Q2818 R2564 1 2 3 W2417 W2626 R2307 R2236 R2235 W2412 R2623 C2605 R2508 W2127 C2604 W2128 TUNER PACK...
  • Page 27 SA-VK725DGC S. VIDEO COMPONENT AM ANT VIDEO OUT JK2802 JK2801 C2842 C3623 L2816 C2849 C2848 C2847 2-PR C2846 5-PB R2834 L2811 W3011 L2815 R2816 R2825 C2850 C2851 L2814 R2828 R2831 K2901 R2807 R2832 R2824 R2823 C2039 C2991 Q2915 Q2913 C2434...
  • Page 28 SA-VK725DGC 4.3. (I) Transformer P.C.B. TRANSFORMER P.C.B (REPX0489G) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B H9502/W9502 W9500 R9507 C9514 IC9500 R9522 Q9504 R9516 D9503 K5805 GC R9510 C9515 W9600 R9517 R9509 CN9500 R9508...

  • Page 29: Illustration Of Ic's, Transistors And Diodes (Updating)

    SA-VK725DGC 5 Illustration of IC's, Transistors and Diodes (Updating) Note: With reference to page 120 (section 25) of the original service manual for SA-VK72DGCS/GS-S. Below are the updates. B1ADGB000008 C0EBA0000455 C3ABPG000145 (54P) MA2J11100L MN2DS0009AP (256P) C0EBA0000029 2SB1218ARL XP0621400L Cathode Anode...

  • Page 30: Parts Location And Replacement Parts List (Updating)

    SA-VK725DGC 6 Parts Location and Replacement Parts List (Updating) Note: With reference to page 123~146 (section 27) of the original service manual for SA-VK72DGCS/GS-S. Below are the updates. Notes: · Important safety notice: Components identified by mark have special characteristics important for safety.

  • Page 31: Cabinet

    SA-VK725DGC 6.1. Cabinet 6.1.1. Cabinet Parts Location...
  • Page 32 SA-VK725DGC...

  • Page 33: Electrical Parts List (Updating)

    SA-VK725DGC 6.1.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RGRX0052D-C REAR PANEL RKWX0252J-V FL WINDOW 6.2. Electrical Parts List (Updating) Ref. No. Part No.

  • Page 34: Packing Materials & Accessories Parts List (Updating)

    SA-VK725DGC Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C8001 EEE0GA331WP 330P 4V C8325 ECJ0EF1C104Z 0.1 16V C8003 ECJ0EF1C104Z 0.1 16V C8330 F2G0J470A031 47P 6.3V C8011 F2G0J101A066 100P 6.3V C8331 ECJ0EF1C104Z 0.1 16V...

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