Page 1 All manuals and user guides at all-guides.com ORDER NO. MD0507277C3 DVD Stereo System SA-VK725DEE Colour (S)... Silver Type Specifications AMPLIFIER SECTION Phone jack RMS Output Power: Dolby Digital Mode Terminal Stereo, 3.5 mm jack Main Mic jack 70 W per channel (6 Ω), 1 kHz, 10% THD 0.7 mV, 600 Ω...
Page 2 SC-VK725D (EE-S) Music System: SA-VK725D (EE-S) sampling is 4:2:2 or 4:2:0) Front Speakers: SB-VK72 (GC-S) MPEG4 data recorded with Panasonic SD multi cameras or DVD Satelite Speakers: SB-PT72 (EE-S) video recorders. Conforming to SD VIDEO specifications (ASF standard)/ MPEG4 (Simple Profile) video system/G.726 audio system DivX 3.11, 4.x, 5.x...
Page 3: Table Of Contents
SA-VK725DEE All manuals and user guides at all-guides.com CONTENTS Page Page 1 Before Repair and Adjustment 15.11. Disassembly for Mic P.C.B. & Panel P.C.B. 2 Protection Circuitry 15.12. Disassembly of Deck Mechanism Unit 3 Safety Precautions 15.13. Replacement for Deck P.C.B.
Page 4: Before Repair And Adjustment
SA-VK725DEE All manuals and user guides at all-guides.com 25.5. Packing Materials & Accessories Parts List 25.6. Packaging 1 Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C5815, C5818, C9513, C9533, C9534, C9816 and C9817 through a 10Ω, 5W resistor to ground.
Page 5 SA-VK725DEE All manuals and user guides at all-guides.com 2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitor, between each exposed metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1.
Page 6: Prevention Of Electro Static Discharge (Esd) To Electrostatically Sensitive (Es) Devices
SA-VK725DEE All manuals and user guides at all-guides.com 4 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”...
Page 7: Precaution Of Laser Diode
SA-VK725DEE All manuals and user guides at all-guides.com 6 Precaution of Laser Diode Caution : This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens. Wavelength : 785 nm(CD)/662 nm(DVD) Maximum output radiation power from pick up : 100 µW/VDE...
Page 8: Cautions To Be Taken When Handling Optical Pickup
SA-VK725DEE All manuals and user guides at all-guides.com 7 Cautions to be taken when handling Optical Pickup The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destruction during repair.
Page 9: Accessories
SA-VK725DEE All manuals and user guides at all-guides.com 8 Accessories Remote control AC cord FM antenna AM antenna Video cable...
Page 10: Operation Procedures
SA-VK725DEE All manuals and user guides at all-guides.com 9 Operation Procedures...
Page 11 SA-VK725DEE All manuals and user guides at all-guides.com...
Page 12: Disc Information
SA-VK725DEE All manuals and user guides at all-guides.com 10 Disc information...
Page 13 SA-VK725DEE All manuals and user guides at all-guides.com...
Page 14: About Highmat
SA-VK725DEE All manuals and user guides at all-guides.com 11 About HighMAT 11.1. What’s HighMAT? Consumers worldwide are using PCs to create their own collections of music, photos and even video by burning them onto CDs. But how these collections can be experienced across different devices can be confusing to navigate, time consuming to access for a DVD player, and be incomplete in terms of music information available to the customer.
Page 15: Benefits Of Highmat
SA-VK725DEE All manuals and user guides at all-guides.com A Solution Created: HighMAT delivers a better digital media access experience by creating a standard approach for PCs to structure digital media on various physical formats and for playback devices to read the data.
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Page 17 SA-VK725DEE All manuals and user guides at all-guides.com HighMAT is now available for CD Burning and in Leading DVD PlayersHighMAT is a new technology that is now available in leading software and consumer electronic devices to dramatically improve the digital media experience when you create homemade CDsHighMAT delivers a simple, standardized way for PC software and consumer electronics devices to talk to each other and work better together.
Page 18: Optical Pickup Self-Diagnosis And Replacement Procedure
SA-VK725DEE All manuals and user guides at all-guides.com 12 Optical Pickup Self-Diagnosis and Replacement Procedure 12.1. Optical Pickup Breakdown diagnosis This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment check function. Follow the procedure described below during repair in order to perform self-diagnosis and tilt adjustment effectively. Especially when “NO DISC” is displayed, be sure to apply the self-diagnosis function before replacing with an optical pickup.
Page 19: Self-Diagnosis Function
SA-VK725DEE All manuals and user guides at all-guides.com 13 Self-Diagnosis Function This unit is equipped with the self-diagnosis function, which displays an error when it occurs, for use during servicing. 13.1. Entering into Self-Diagnostic Mode 13.2. Automatic Displayed Error Codes 13.2.1.
Page 20: Service Mode Table
SA-VK725DEE All manuals and user guides at all-guides.com If several errors are detected, press the button to display each. 13.3.2. Re-Display · Press the power button to turn off the power, and then turn on the power. · The details of self diagnosis are stored in the unit memory.
Page 21 SA-VK725DEE All manuals and user guides at all-guides.com Item Operational Condition Details Display TO Exit Mode and Key Function Jitter display While player Jitter display xxx/yyy zz (display1/display2) Press the STOP stopped and no disc is Measures displays jitter. button...
Page 22 SA-VK725DEE All manuals and user guides at all-guides.com Item Operational Condition Details Display TO Exit Mode and Key Function Measurement of CD While player Measurement of CD laser current /xxx yyyy Automatically exits laser current electricity stopped and no disc is...
Page 23: Cr16 Mechanism Ageing Mode
SA-VK725DEE All manuals and user guides at all-guides.com Item Operational Condition Details Display TO Exit Mode and Key Function Spindle use time While player Spindle motor usage time T2_00000 Automatically exits stopped and no disc is the mode after five...
Page 24: Things To Do After Repair
SA-VK725DEE All manuals and user guides at all-guides.com 13.9. Things to Do After Repair Follow the procedure described below after repair. 1. While the power is on, press the button to close the tray. 2. Press the power button to turn off the power.
Page 25: Using Recovery Disc
SA-VK725DEE All manuals and user guides at all-guides.com Version upgrade process: Renewal of firmware for improvement of operational range and performance 14.4. Using Recovery Disc 14.4.1. Recovery Process 1. Insert the recovery disc (RFKZD03R005) to the player to replay. 2. The recovery process automatically starts, and a message of completion prompts on the screen.
Page 26: Disassembly And Assembly Of Main Component
SA-VK725DEE All manuals and user guides at all-guides.com 15 Disassembly and Assembly of Main Component “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
Page 27: Disassembly Flow Chart
SA-VK725DEE All manuals and user guides at all-guides.com 15.2. Disassembly flow chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart as below.
Page 28: Disassembly Of Top Cabinet
SA-VK725DEE All manuals and user guides at all-guides.com 15.3. Disassembly of Top Cabinet Step 1 Remove 3 screws at each side and 5 screws at rear panel. Step 2 Lift up both sides of the top cabinet, push the top cabinet towards the rear to remove the top cabinet.
Page 29 SA-VK725DEE All manuals and user guides at all-guides.com Step 2 Detach the FFC cables (CN2810 & CN2813). Step 4 Lift the DVD changer unit upwards. Step 3 Release the claws on both ends, and remove the DVD changer unit. Step 5 Remove 2 screws.
Page 30: Disassembly Of Main P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com 15.6. Disassembly of Main P.C.B. · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet · Follow the (Step 1) of Item 15.4 - Disassembly of Rear Panel ·...
Page 31: Disassembly Of Power P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com Step 4 Desolder wire at holder H5804. · Replacement of the Power Amp IC Repeat Step 1 - Step 3 of Section 15.7 - Disassembly of Power Amp P.C.B. 15.8. Disassembly of Power P.C.B.
Page 32: Disassembly Of Transformer P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com Step 4 Fix back the cut portion with a screw as shown. 15.9. Disassembly of Transformer P.C.B. · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet ·...
Page 33 SA-VK725DEE All manuals and user guides at all-guides.com Step 2 Bent the front panel unit forward as arrow shown. Step 4 Remove the front panel unit. Note: Ensure 2 claws on bottom chassis is properly and fully catched to the front panel holes.
Page 34: Disassembly For Mic P.c.b. & Panel P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com 15.11. Disassembly for Mic P.C.B. & Panel P.C.B. · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 4) of Item 15.5 - Disassembly of DVD Changer Unit ·...
Page 35: Disassembly Of Deck Mechanism Unit
SA-VK725DEE All manuals and user guides at all-guides.com 15.12. Disassembly of Deck Mechanism Unit · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet · Follow the (Step 1) - (Step 6) of Item 15.5 - Disassembly of DVD Changer Unit ·...
Page 36: Replacement For Optical Pickup Unit (Dvd Mechanism)
SA-VK725DEE All manuals and user guides at all-guides.com Step 2 Remove DVD traverse deck by rotating to the arrow direction. 15.15. Replacement for Optical Pickup Unit (DVD mechanism) · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet ·...
Page 37 SA-VK725DEE All manuals and user guides at all-guides.com Step 10 Remove the catch of the drive rack, and take out the Step 6 Remove the dvd module board and turn it over. drive rack. Step 7 Pull FFC out from the connector.
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Page 39: Procedure For Removing Cd Loading Mechanism
SA-VK725DEE All manuals and user guides at all-guides.com 15.16. Procedure for removing CD loading mechanism 1. Turn off by pressing power SW in the body. 2. Unplug AC power cord after the indication of [GOOD-BYE], then disassemble the body. 3. Disassemble the body, and take out CD loading mechanism.
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Page 41 SA-VK725DEE All manuals and user guides at all-guides.com 15.17.3. Replacement for the traverse deck · Follow the (Step 1) - (Step 10) of item 15.17.2.
Page 42 SA-VK725DEE All manuals and user guides at all-guides.com 15.17.4. Disassembly for CD loading unit · Follow the (Step 1) - (Step 10) of item 15.17.2. · Follow the (Step 1) - (Step 4) of item 15.17.3.
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Page 45: Cr16 Mechanism Assembly Procedure
SA-VK725DEE All manuals and user guides at all-guides.com 15.18. CR16 mechanism assembly procedure The following specified greases and/or oil must be applied when some specific parts are changed. 1. Floil grease (VFK1298) : The floil grease must be applied to tray, tray (L) and tray (R).
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Page 57: Disassembly For Traverse Unit
SA-VK725DEE All manuals and user guides at all-guides.com 15.19. Disassembly for Traverse Unit · Follow the (Step 1) - (Step 10) of item 15.17.2 · Follow the (Step 1) - (Step 4) of item 15.17.3...
Page 58: Replacement For Cassette Lid
SA-VK725DEE All manuals and user guides at all-guides.com 15.20. Replacement for cassette lid · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet Step 1 Lift up the lever upward, open the cassette deck. (For DECK1 and DECK2) Step 2 Push up the cassette lid (L/R) in the direction of arrow.
Page 59: Rectification For Tape Jam Problem
SA-VK725DEE All manuals and user guides at all-guides.com 15.21. Rectification for tape jam problem · Follow the (Step 1) - (Step 2) of Item 15.3 - Disassembly of Top Cabinet Step 1 If a cassette tape cannot be removed from the deck (the...
Page 60: Checking For Major P.c.bs
SA-VK725DEE All manuals and user guides at all-guides.com 16 Checking for major P.C.Bs Note: Checking of all major P.C.Bs (Main P.C.B., Panel P.C.B., Transformer P.C.B., Deck P.C.B., Deck Mechanism P.C.B., Mic P.C.B., Power P.C.B. and Power Amp P.C.B.) can be carried out using below procedures.
Page 61: Checking Of Transformer P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com 16.2. Checking of Transformer P.C.B. 1. Remove Top Cabinet. 2. Disassemble DVD Changer Unit. 3. Connect FFC cables (CN2810 & CN2813) from Main P.C.B.
Page 62: Checking Of Panel, Deck & Deck Mechanism P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com 16.3. Checking of Panel, Deck & Deck Mechanism P.C.B. 1. Remove Top Cabinet. 2. Disassemble DVD Changer Unit. 3. Disassemble Front Panel Unit. 4. Remove volume knob and Mic Jack Holder. 5. Disassemble Panel P.C.B.
Page 63: Checking Of Power P.c.b
SA-VK725DEE All manuals and user guides at all-guides.com 16.4. Checking of Power P.C.B. 1. Remove Top Cabinet and Rear Panel. 2. Disassemble DVD Changer Unit. 3. Remove 4 screws at Transformer P.C.B.. 4. Remove 2 screws at heat sink and 1 screw at Power P.C.B.
Page 64: Measurements And Adjustments
SA-VK725DEE All manuals and user guides at all-guides.com 17 Measurements and Adjustments 17.1. Cassette Deck Section 17.1.2. Tape Speed Adjustment (Deck 1/2) · Measurement Condition 1. Set the tape edit button to “NORMAL” position. − − − − Reverse-mode selector switch: 2.
Page 65: Tuner Section
SA-VK725DEE All manuals and user guides at all-guides.com 17.1.4. Bias Frequency Adjustment (Deck 1/2) 1. Set the unit to “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and set the unit to “REC” mode (l use “REC/STOP” key).
Page 66: Alignment Points
SA-VK725DEE All manuals and user guides at all-guides.com 17.3. Alignment Points 17.3.1. Cassette Deck Section 17.3.2. Adjustment Point...
Page 67: Block Diagram
SA-VK725DEE All manuals and user guides at all-guides.com 18 Block Diagram OPTICAL PICKUP LD(DVD) SPINDLE MOTOR UNIT LD(CD) Q8552 Q8562 SWITCH SWITCH BIAS IC8251 C0GBG0000048 OPIN+ MOTOR DRIVE LDIN BIAS2 TRIN Q8551 Q8561 SWITCH SWITCH QR8571 SUPPLY CONTROL SWITCH 130 131 129 132 127 113 114 133 134 135 118 136 117 137 116 138 115 DV3.2 LSI...
Page 68 SA-VK725DEE All manuals and user guides at all-guides.com IC8601 IC8601 C0EBA0000029 C0EBA0000029 VOLTAGE VOLTAGE DETECTOR DETECTOR IC8051 IC8651 C3ABPG000145 XRESET RFKWMH90E160 64 SDRAM IC 16M FLASH ROM IC 2,4,5,7,8,10,11, 22-26, 9, 16, 1~8, 29-36, 13,42,44,45,47, 29-35 17, 48 18-25 38-45...
Page 69 SA-VK725DEE All manuals and user guides at all-guides.com TO MAI BLOCK 27(26) 22(21) 20(19) Q8335 Q8321 QR8111 IC8111 IC8111 C0CBCBD00018 C0CBCBD00018 SWITCH SWITCH SWITCH POWER POWER SUPPLY SUPPLY Q8331 Q8341 Q8325 IC8421 SWITCH SWITCH SWITCH C0FBBK000050 AUDIO DAC 11~13 IC8695...
Page 70 SA-VK725DEE All manuals and user guides at all-guides.com AM ANT FM ANT Z2620 CF2601 CF2602 Q1 (RF AMP) Q2601 MIXER IF AMP D2602 L2602 L2601 BUFFER (FM) DECODER RM AMP BUFFER PHASE PILOT CANCEL STEREO LEVEL S-CURVE SWITCH AM/FM COMP...
Page 71 SA-VK725DEE All manuals and user guides at all-guides.com FL6800 FROM POWER FL DISPLAY TRANSFORMER 6~40 41~49 16~23, 1~2, 25~51 58~64 IC6803 C0HBB0000039 FL DRIVER RM11 RM21 UP/DOWN MOTOR LOADING MOTOR PLLDA IC11 IC21 ST/DO C0GAG0000007 C0GAG0000007 UP/DOWN LOADING MOTOR DRIVER...
Page 72 SA-VK725DEE All manuals and user guides at all-guides.com IC1001 AN7348S-E1 P.B EQ/REC AMP/ ALC/TPS AMP 24(23) (DECK 1) P.B. HEAD 1(2) 20(5) 22(3) 21(4) 17(8) (DECK 2) R/P HEAD 18(7) LOGIC L/H NOR/CrO & HI/LO LOGIC RIPPLE LOGIC REJECTION REC/PB...
Page 73 SA-VK725DEE All manuals and user guides at all-guides.com JK2802 COMPONENT VIDEO BLUE CbOUT GREEN CyOUT VIDEO YELLOW VOUT CyIN IC2006 C9ZB00000466 CrOUT VIDEO IC CB_B CbIN JK2801 S.VIDEO OUT YOUT CR_R COUT CrIN DVD_CLK DVD_STAT Q2838 SWITCH DVD_CMD IC2803 C0DBEZG00021...
Page 74 SA-VK725DEE All manuals and user guides at all-guides.com IC2814 Q6817 Q6806, Q6807 KIA4558FEL IC2813 76(75) DUAL OP-AMP IC2800 C1BB00001012 LIMITTER LOUT(R) 15(14) KARAOKE IC C1BB00000979 JK6802 64(63) 5(3) ANALOG SURROUND IC 7(1) 6(7) LCIN(R) MIC2 COUT 6(2) SOUT Q2813 JK6800...
Page 75 SA-VK725DEE All manuals and user guides at all-guides.com 65(66) INC1(2) 25(23) OUTLS(R) 63(64) JK2803 INB1(2) 61(62) INFLA(B) DVDFL(R) 75(76) INCA IC2815 DVDCNT INLSA(R) KIA4558FEL DUAL OP-AMP DVDSL(R) 78(79) IND1(2) OUTC SUBW INSUBA IC2812 DVD_MIXL(R) C1BB00000845 67(68) IND1(2) ASP IC OUTSUB...
Page 76 SA-VK725DEE All manuals and user guides at all-guides.com FILTER 16(15) -IN21(22) 3(6) OUT21(22) IC5801 -IN11 SUR_L(R) RSN315H42C-P OUT11 POWER AMP ACDET JK9502 FILTER CENTER JK2804 SUBWOOFER JK9501 FILTER FRONT L(R) IC5001 FILTER 10(14) LATCH -IN_L(R) RSN35H2B-P POWER AMP ACDET 4(1)
Page 77 SA-VK725DEE All manuals and user guides at all-guides.com JK6801 HEADPHONE HP _SW HP _OUT Q2710 SYNC SYNCHRONISING SWITCH Q2702 RESET SWITCH Q9501 D9512,D9517 SYSTEM 6V VOLTAGE REGULATOR Q9502 SYSTEM 6V VOLTAGE REGULATOR Q5802, Q5805 SWITCH Q5809 9V VOLTAGE REGULATOR T9501...
Page 78: Voltage Measurement
SA-VK725DEE All manuals and user guides at all-guides.com 19 Voltage Measurement This section is not available at time of issue.
Page 79: Schematic Diagram
SA-VK725DEE All manuals and user guides at all-guides.com 20 Schematic Diagram (All schematic diagrams may be modified at any time with the Secondary trouble can be prevented by taking care during development of the new technology) repair. · Cover the parts boxes made of plastics with aluminium foil.
Page 80: Optical Pickup Unit Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.1. Optical Pickup Unit Circuit SCHEMATIC DIAGRAM - 1 OPTICAL PICKUP UNIT CIRCUIT : +B SIGNAL LINE : CD-DA SIGNAL LINE J0JBC0000105 TO ACT J0JBC0000105 GND (IM) DVD MODULE CIRCUIT VREF2(RF-) (FP8501) ON...
Page 81: A) Dvd Module Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.2. (A) DVD Module Circuit SCHEMATIC DIAGRAM - 2 : +B SIGNAL LINE : CD-DA SIGNAL LINE DVD MODULE CIRCUIT TRV-I-SW D+5V FODRV C8251 TRDRV 6.3V220 TL8201 VHALF C8262 C8261 R8230 2.2K...
Page 82 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 83 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 84 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 85 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 86 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 87 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 88: B) Main (Tuner) Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.3. (B) Main (Tuner) Circuit SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : FM SIGNAL LINE : AM SIGNAL LINE MAIN (TUNER) CIRCUIT : FM/AM SIGNAL LINE : FM OSC SIGNAL LINE...
Page 89: B) Main Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.4. (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...
Page 90 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 91 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 92 SA-VK725DEE All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM - 13 : +B SIGNAL LINE MAIN CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE C2602 C2219 C2306 C2406 C2119 50V4.7 50V2.2 50V2.2 50V4.7 Q2815 Q2816 R2615 R2406 R2218...
Page 93 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 94 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 95 SA-VK725DEE All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM - 16 MAIN CIRCUIT : +B SIGNAL LINE R2687 VREF+ BASS LEDCONT R2683 100K R2684 100K PHOTO_1 R2791 PHOTO_2 R2792 DECK2 R2797 KEY1 R2672 KEY2 R2798 KEY3 R2708 C2718 470P...
Page 96 SA-VK725DEE All manuals and user guides at all-guides.com 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 ASP_CK R2776 BASS...
Page 97 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 98: C) Panel Circuit & (D) Mic Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.5. (C) Panel Circuit & (D) Mic Circuit SCHEMATIC DIAGRAM - 19 : +B SIGNAL LINE : MIC SIGNAL LINE PANEL CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE L6802, L6803...
Page 99 SA-VK725DEE All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM - 20 : +B SIGNAL LINE : MIC SIGNAL LINE PANEL CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE FL6800 A2BD00000125 FL DISPLAY 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1...
Page 100: E) Deck Circuit & (F) Deck Mechanism Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.6. (E) Deck Circuit & (F) Deck Mechanism Circuit SCHEMATIC DIAGRAM - 21 : +B SIGNAL LINE : PLAYBACK SIGNAL LINE DECK CIRCUIT : RECORD SIGNAL LINE C1038 R1055 C1057 220P C1034 2.2K...
Page 101 SA-VK725DEE All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM - 22 MAIN CIRCUIT (CP6803) ON SCHEMATIC : +B SIGNAL LINE : PLAYBACK SIGNAL LINE DIAGRAM - 15 DECK CIRCUIT : RECORD SIGNAL LINE CN1001 R1098 R1060 R1057 R1091 2.2K...
Page 102: G) Power Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.7. (G) Power Circuit SCHEMATIC DIAGRAM - 23 : +B SIGNAL LINE POWER CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE C9535 0.047 IC5001 R5205 C5203 C5202 IC5001 RSN35H2B-P R9523 RIGHT...
Page 103: H) Power Amp Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.8. (H) Power Amp Circuit SCHEMATIC DIAGRAM - 24 : +B SIGNAL LINE POWER AMP CIRCUIT : -B SIGNAL LINE : MAIN SIGNAL LINE SUB_IN SUR_R_IN CENT_IN SUR_L_IN POWER R5819 CIRCUIT SUR_L_OUT...
Page 104: I) Transformer Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.9. (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...
Page 105: J) Cd Loading Circuit
SA-VK725DEE All manuals and user guides at all-guides.com 20.10. (J) CD Loading Circuit SCHEMATIC DIAGRAM - 26 CD LOADING CIRCUIT : +B SIGNAL LINE IC11 C0GAG0000007 UP/DOWN MOTOR DRIVE 0.01 16V100P RM11 UP/DOWN MOTOR CHANGE BOTTOM OPEN B3NAA0000068 +7.5V SENSOR...
Page 106: Printed Circuit Board
SA-VK725DEE All manuals and user guides at all-guides.com 21 Printed Circuit Board 21.1. (A) DVD Module P.C.B. (Side: A & B ) DVD MODULE P.C.B (REP3908B) C8530 LB8530 IC8251 C8572 RX8532 C8531 LB8257 IC8601 RX8531 C8261 R8262 R8264 Q8551 IC8606...
Page 107 SA-VK725DEE All manuals and user guides at all-guides.com 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...
Page 108: B) Main
SA-VK725DEE All manuals and user guides at all-guides.com 21.2. (B) Main P.C.B. MAIN P.C.B (REPX0486K) LINE OUT SUBWOOFER FM ANT AM ANT JK2803 JK2601 IC2815 JK2804 W2881 R2848 Q2818 R2564 1 2 3 W2417 W2626 R2307 R2236 R2235 W2412 C2605...
Page 109 SA-VK725DEE All manuals and user guides at all-guides.com S. VIDEO COMPONENT AM ANT VIDEO OUT JK2802 JK2801 C2842 C3623 L2816 C2849 C2848 C2847 2-PR C2846 5-PB R2834 W3011 L2811 L2815 R2816 C2851 L2814 R2825 C2850 R2828 R2831 R2807 R2832 R2824...
Page 110: C) Panel
SA-VK725DEE All manuals and user guides at all-guides.com 21.3. (C) Panel P.C.B. PANEL P.C.B (REPX0487A) S6819 OPEN/CLOSE R6963 S6820 DISC CHANGE R6964 S6821 DISC 5 R6965 FL6800 H6800 S6822 DISC 4 R6966 S6823 W6854 DISC 3 W6855 S6824 DISC 2...
Page 111 SA-VK725DEE All manuals and user guides at all-guides.com S6810 AC IN R6937 R6829 S6811 DISC CHECK R6938 S6812 MULTI REMASTER CN6811 R6939 R6997 W6880 S6813 W6867 SUPER SURROUND C6855 W6865 W6863 D6802 Q6803 W6858 R6940 W6861 W6866 W6878 W6913 W6860...
Page 112: D) Mic P.c.b. & (K) Tuner Pack
SA-VK725DEE All manuals and user guides at all-guides.com 21.4. (D) Mic P.C.B. & (K) Tuner Pack P.C.B. MIC P.C.B (REPX0487A) MIC1 MIC2 JK6802 JK6800 R6891 Q6817 K6806 C6872 R6890 Q6807 C6875 C6871 R6886 W6890 R6982 C6866 C6811 R6981 R6991 W6891...
Page 113: E) Deck P.c.b. & (F) Deck Mechanism
SA-VK725DEE All manuals and user guides at all-guides.com 21.5. (E) Deck P.C.B. & (F) Deck Mechanism P.C.B. DECK P.C.B DECK MECHANISM P.C.B. (REPX0331E) (REPX0321B) R1024 IC1004 C1006 C1009 R1027 CS1002 TO R/P HEAD TP10 Q1003 TP4 x J1002 L1002 TP3 x...
Page 114: G) Power P.c.b. & (H) Power Amp
SA-VK725DEE All manuals and user guides at all-guides.com 21.6. (G) Power P.C.B. & (H) Power Amp P.C.B. POWER P.C.B (REPX0488E) Q5802 Q5809 Q5803 Q5804 C5804 R5814 C5811 W5879 C5809 C5806 FP5833 R5828 R5102 D5801 R5823 Q5807 0.4A R5813 W5857 H9500...
Page 115 SA-VK725DEE All manuals and user guides at all-guides.com IC5001 L9502 R5102 W5847 C5202 D5820 R9523 L9507 W5857 W5849 C5102 R5205 R5200 R9528 R5105 C5834 R5206 R5100 W5860 W5833 W5834 W5861 Q5801 W5859 W5835 Q5810 RIGHT SPEAKER R9532 W5837 2-GND R9531...
Page 116: I) Transformer
SA-VK725DEE All manuals and user guides at all-guides.com 21.7. (I) Transformer P.C.B. TRANSFORMER P.C.B (REPX0489D) CAUTION RISK OF ELECTRIC SHOCK AC VOLTAGE LINE. PLEASE DO NOT TOUCH THIS P.C.B H9502/W9502 W9500 R9507 C9514 IC9500 R9522 Q9504 K5803 VK725D R9516 D9503...
Page 117: J) Cd Loading
SA-VK725DEE All manuals and user guides at all-guides.com 21.8. (J) CD Loading P.C.B. CD LOADING P.C.B (REP3569A) CHANGESW RM21 LOADING_MOTOR STOCKSW PLAYSW RM11 UP/DOWN_ MOTOR IC21 IC11 OPENSW BOTTOMSW...
Page 118: Wiring Connection Diagram
SA-VK725DEE All manuals and user guides at all-guides.com 22 Wiring Connection Diagram CN6811 1 ..29 2 ..30 1..7...
Page 119 SA-VK725DEE All manuals and user guides at all-guides.com DECK P.C.B. SOLDER SIDE CN2801 CN2802 1... . 12 1... . 12...
Page 120: Illustration Of Ics, Transistors And Diodes
SA-VK725DEE All manuals and user guides at all-guides.com 23 Illustration of ICs, Transistors and Diodes RSN315H42C-P AN7348S-E1 (24P) C1AA00000612 C0FBBK000050 (28P) C0HBB0000039 (64P) C1BB00000086 (18P) C1BB00000801 (80P) C3ABPG000145 (54P) MN2DS0009AP (256P) KIA4558FEL(8P) C2CBJG000653 (100P) LA1833NMNTLM (24P) C1BB00000845 (56P) LC72131MDTRM (20P)
Page 121 SA-VK725DEE All manuals and user guides at all-guides.com B3AAA0000583 B0BA03100002 B3AEA0000041...
Page 122: Terminal Function Of Ic
SA-VK725DEE All manuals and user guides at all-guides.com 24 Terminal Function of IC 24.1. IC2818 (C2CBJG000653) System Microprocessor Pin No. Mark Function Pin No. Mark Function ST_SW Stock Switch of Changer ECLK CLOCK Signal EEPROM OP/CL_REV Reverse control signal for...
Page 123 SA-VK725DEE All manuals and user guides at all-guides.com Pin No. Mark Function Model_CTL select Model when power (VK72=L; VK82/92=H) BASS Port to control SSEQ-2 MIC_1L Port to control Mic Level Up MIC_2L Port to control Mic Level Down Port to Control LED...
Page 124: Parts Location And Replacement Parts List
SA-VK725DEE All manuals and user guides at all-guides.com 25 Parts Location and Replacement Parts List Notes: · Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used.
Page 125: Deck Mechanism (Raa3413-S)
SA-VK725DEE All manuals and user guides at all-guides.com 25.1. Deck Mechanism (RAA3413-S) 25.1.1. Deck Mechanism Parts Location...
Page 126 SA-VK725DEE All manuals and user guides at all-guides.com...
Page 127 SA-VK725DEE All manuals and user guides at all-guides.com 25.1.2. Deck Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks CASSETTE DECK RED0064 R/P HEAD BLOCK UNIT RED0063 P/B HEAD BLOCK UNIT RDG0300 REEL BASE GEAR RDG0301 WINDING RELAY GEAR...
Page 128: Dvd Loading Mechanism
SA-VK725DEE All manuals and user guides at all-guides.com 25.2. DVD Loading Mechanism 25.2.1. DVD Loading Mechanism Parts Location...
Page 129 SA-VK725DEE All manuals and user guides at all-guides.com...
Page 130 SA-VK725DEE All manuals and user guides at all-guides.com 25.2.2. DVD Loading Mechanism Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks TRAVERSE DECK RMG0617-H CUSHION RUBBER A RMG0618-H CUSHION RUBBER B...
Page 131: Cabinet
SA-VK725DEE All manuals and user guides at all-guides.com 25.3. Cabinet 25.3.1. Cabinet Parts Location...
Page 132 SA-VK725DEE All manuals and user guides at all-guides.com...
Page 133 SA-VK725DEE All manuals and user guides at all-guides.com...
Page 134: Electrical Parts List
SA-VK725DEE All manuals and user guides at all-guides.com 25.3.2. Cabinet Parts List Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RGUX0635-S F/BTN CAP C (TAPE) RGUX0636-S F/BTN CAP D (CD/DVD)
Page 135 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks Q2816 B1GDCFGA0018 TRANSISTOR D2809 B0ACCK000005 DIODE Q2818 B1GFGCAA0001 TRANSISTOR D2810 B0EAKM000117 DIODE Q2819 B1GFGCAA0001...
Page 136 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks LB8302 J0JBC0000042 CHIP BEAD K1MN14B00066 14P FFC CONNECTOR LB8303 J0JBC0000042 CHIP BEAD CN971 K1MN10B00104...
Page 137 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks L8550 G1C100KA0055 CHIP INDUCTOR JK2804 K2HA102B0064 JK S.W L9500 G0ZZ00001930 COIL JK6800 K2HB102J0038 L9501...
Page 138 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks ERDS2TJ564T 560K 1/4W R2067 ERJ3GEY0R00V 0 1/16W ERDS2TJ391T 390 1/4W R2068 ERJ3GEY0R00V 0 1/16W ERDS2TJ272T 2.7K 1/4W...
Page 139 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2209 ERJ3GEYJ123V 12K 1/16W R2582 ERJ3GEYJ104V 100K 1/16W R2210 ERJ3GEYJ104V 100K 1/16W R2583 ERJ3GEYJ224V...
Page 140 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2687 ERJ3GEYJ103V 10K 1/16W R2823 ERJ3GEYJ750V 75 1/16W R2691 ERJ3GEYJ102V 1K 1/16W R2824 ERJ3GEYJ750V...
Page 141 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R2982 ERJ3GEY0R00V 0 1/16W R5405 ERDS1FVJ100T 10 1/2W R2983 ERJ3GEY0R00V 0 1/16W R5406 ERDS1FVJ100T...
Page 142 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R6854 ERJ3GEYJ102V 1K 1/16W R8262 ERJ2GEJ153X 15K 2W R6855 ERJ3GEYJ102V 1K 1/16W R8263 ERJ2GEJ823X...
Page 143 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R9522 ERDS2TJ1R0T 1 1/4W C1012 ECJ1VB1H102K 1000P 50V R9523 ERDS1FVJ100T 10 1/2W C1013 ECJ1VB1H102K...
Page 144 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2141 ECEA1HKA100B 10 50V C2612 ECJ1VB1H103K 0.01 50V C2142 ECJ1VB1H272K 2700P 50V C2613 ECJ1VB1H102K...
Page 145 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C2745 ECJ1VB1H103K 0.01 50V C2948 ECJ1VC1H102J 1000P 50V C2746 ECJ1VB1H103K 0.01 50V C2953 ECJ1VB1A224K 0.22 10V...
Page 146 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C5811 ECJ1VB1H103K 0.01 50V C8025 ECJ0EF1C104Z 0.1 16V C5812 ECEA1EKA330B 33 25V C8026 ECJ0EF1C104Z 0.1 16V...
Page 147 SA-VK725DEE All manuals and user guides at all-guides.com Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C8531 ECJ0EC1H101J 100P 50V C9501 ECQE1104KF3 0.1 100V C8532 ECJ0EC1H221J 220P 50V C9502 ECKR1H103MD5 0.01 50V...
Page 148 SA-VK725DEE All manuals and user guides at all-guides.com 25.6. Packaging 25.6.1. Packaging (SF-VK725DEE) This section consists of the packaging information for SF-VK725DEE. Below is the table for system combination. For information on the speakers model, please refer to its respective original service manual.

Panasonic SA-VK725DEE Service Manual

1 Before Repair and Adjustment

2 Protection Circuitry

3 Safety Precautions

4 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices

5 Handling the Lead-Free Solder

6 Precaution of Laser Diode

7 Cautions to be Taken When Handling Optical Pickup

8 Accessories

9 Operation Procedures

10 Disc Information

11 About Highmat

12 Optical Pickup Self-Diagnosis and Replacement Procedure

13 Self-Diagnosis Function

14 Cautions to be Taken During Servicing

15 Disassembly and Assembly of Main Component

16 Checking for Major P.C.bs

17 Measurements and Adjustments

18 Block Diagram

19 Voltage Measurement

20 Schematic Diagram

21 Printed Circuit Board

22 Wiring Connection Diagram

23 Illustration of Ics, Transistors and Diodes

24 Terminal Function of IC

25 Parts Location and Replacement Parts List

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