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Technics SH-DV280EG Service Manual
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Technics SH-DV280EG Service Manual

Technics SH-DV280EG Service Manual

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ORDER NO.AD0202036C2
Sound Processor
SH-DV280EG
Colour
(S) ...................Gold Type
System: SC-DV280
Because of unique interconnecting cables,when a
component requires servise,send or bring in the entire
system.
Note: Refer to the service manual for Model No.
SA-DV280EG (ORDER NO.AD0202035C2) for
information on "ACCESSORIES"and "PACKAGING".
SPECIFICATIONS
Specification

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Summary of Contents for Technics SH-DV280EG

  • Page 1 ORDER NO.AD0202036C2 Sound Processor SH-DV280EG Colour (S) ....Gold Type System: SC-DV280 Because of unique interconnecting cables,when a component requires servise,send or bring in the entire system. Note: Refer to the service manual for Model No. SA-DV280EG (ORDER NO.AD0202035C2) for information on “ACCESSORIES”and “PACKAGING”.
  • Page 3 EQ/SFP section MANUAL GEQ 5-band EQ center frequency: 70/ 300/ 1k/ 3.15k/ 10k Hz Level control: +-2.0/ 4.0. 6.0 dB EQ/Space mode: 4 Modes, HEAVY, CLEAR, SOFT, HALL SUPER 3D AI EQ: 3 Modes AI EQ, SUPER 3D AI 1, SUPER 3D AI 2 Pre-amplifier section Input sensitivity/ impedance VCR (EXT):...

  • Page 4: Before Repair

    Sound Processor: SH-DV280 , DVD/ Video CD/ CD changer: SL -DV280, Tuner/ Amplifier: SA-DV280, Cassette Deck: RS- DV280, Speakers: Front* (SB-DV280), Center* (SB- PC95),Surround* (SB-PS95) (*Made in MAES) 2002 Matsushita Electric Industrial Co., Ltd. / / All rights reserved. Unauthorized copying and / / distribution is a violation of law.
  • Page 5 - Check the FL P.C.B. as shown below. 3.2. Checking for the main P.C.B. - Follow the (Step 1) - (Step 3) of item 3.1.
  • Page 6 - Check the main P.C.B. as shown below.

  • Page 7: Schematic Diagram Notes

    4. Wiring Connection Diagram 5. Block Diagram 6. To Supply Power Source This unit is designed to operate on power supplied from system connected. When a component requires service, use the system connections to supply power source. For system connections. (Refer to Fig. 1) Fig.
  • Page 8 - S601: Display mode (DISPLAY MODE) switch. - S602: DOLBY PRO LOGIC ( PRO LOGIC, OFF/ ON) switch. - S603: Super surround (SUPER SURROUND) switch . - S604: Super sound EQ (SUPER SOUND EQ) switch . - S605: Center focus (CENTER FOCUS) switch. - S606: Virtual rear surround (VIRTUAL REAR SURROUND) switch.

  • Page 9: Schematic Diagram

    : Positive voltage line : CD Playback signal line : Negative voltage line 8. Schematic Diagram 9. Printed Circuit Board Diagram 10. Terminal Function of IC's 10.1. IC601(C2BBGF000251):System control/FL drive Mark I/O / Function Division KEY1 Operation key1 signal input terminal KEY2 Operation key2 signal input...
  • Page 31 Mark I/O / Function Division DSP CK Clock signal output terminal for IC401 DSP DO Data signal output terminal for IC401 DSP DI Data signal input terminal for IC401 JOGA JOG A signal input terminal JOGB JOG B signal input terminal CNVSS Connected to GND through resistor...
  • Page 32 Mark I/O / Function Division SA DO Serial communication signal output terminal for Tuner/Amplifier SA DI Serial communication signal input terminal from Tuner/Amplifier 37 LED SSS LED(SUPER SURROUND)signal output terminal 38 LED DPL LED(DOLBY PRO LOGIC) signal output terminal ORANGE LED (SEAT POSITION) signal output terminal GREEN LED (SEAT...

  • Page 33: Replacement Parts List

    Mark I/O / Function Division CD& Data signal output terminal DECK (DVD and deck machanism) CD& Clock signal input terminal DECK (DVD and deck machanism) Not used, open CD REQ Serial data request signal output terminal for DVD DECK Serial data request signal output terminal for deck machanism CD&...
  • Page 34 1,000 (OHM), 1M=1,000K (OHM) *All parts are supplied by MESA. Ref. No. Part No. Part Name & Description Remarks RKA0105-K RUBBER RKA0106-N FOOT RING RGB0025-A TECHNICS BADGE RGK1129-N SIDE ORNAMENT(L) RGK1130-N SIDE ORNAMENT(R) RGL0491-Q2 PANEL LIGHT RGP0789L-N FRONT PANEL RGU1862-N BUTTON BLOCK...
  • Page 35 Ref. No. Part No. Part Name & Description Remarks C315,16 ECBA1H101KB5 50V 100P C317 ECBT1C562KR5 16V 5600P F1D1C562A010 C318 ECBT1H270J5 50V 27P ECBT1H270J3 C319-22 ECA1CAK100XB 16V 10U C323,24 ECBT1C103MS5 16V 0.01U F1D1C103A004 C327 ECBT1H333KB5 50V 0.033U F1D1H333A012 C328,29 ECA1CAK220XB 16V 22U C343,44 ECA1CAK100XB 16V 10U...
  • Page 36 Ref. No. Part No. Part Name & Description Remarks C770 ECA1CAK100XB 16V 10U C771,72 ECBT1C103MS5 16V 0.01U F1D1C103A004 C773 ECA1AAK221XH 10V 220U C774 ECA1CAM221XB 16V 220U C801 ECUV1H120JCV 50V 12P ECJ1VC1H120J C802 ECUV1H050CCV 50V 5PF C803 ECUV1H102KBV 50V 1000P ECJ1VB1H102K C804 ECUVNC104KBV 16V 0.1U...
  • Page 37 Ref. No. Part No. Part Name & Description Remarks CN201 RJT065A20 CONNECTOR(20P) K1FA220B0007 CN202 RJT065K20 CONNECTOR(20P) K1FA220B0006 D201 MA4056-M DIODE MAZ40560M D203 MA165 DIODE MA2C165 D204 MA719TA DIODE MA2C71900A D301 MA700 DIODE MA2C700 D302 MA165 DIODE MA2C165 D304,05 MA719TA DIODE MA2C71900A D601-04 1SS291TA...
  • Page 38 Ref. No. Part No. Part Name & Description Remarks L814 G0A200D00002 COIL L821,22 RLBV252AV-Y COIL J0JBC0000019 PCB1 REP3073D-M MAIN P.C.B. (RTL) Q301-04 2SD2144S TRANSISTOR B1AAGC000006 Q305,06 UN411FTA TRANSISTOR UNR411F00A Q307-10 2SD2144S TRANSISTOR B1AAGC000006 Q313-16 2SD2144S TRANSISTOR B1AAGC000006 Q501,02 UN411FTA TRANSISTOR UNR411F00A Q503-05 2SD2144S...
  • Page 39 Ref. No. Part No. Part Name & Description Remarks R259,60 ERDS2T0T 1/4W 0 R280-83 ERDS2FJ563 1/4W 56K ERDS2TJ563T R284,85 ERDS2TJ133T 1/4W 13K D0AE133JA046 R286,87 ERDS2FJ223 1/4W 22K R288-91 ERDS2TJ183 1/4W 18K R292,93 ERDS2TJ823T 1/4W 82K R295,96 ERDS2T0T 1/4W 0 R297,98 ERDS2FJ471 1/4W 470 R303,04...
  • Page 40 Ref. No. Part No. Part Name & Description Remarks R421 ERDS2FJ101 1/4W 100 R424 ERDS2FJ102 1/4W 1K R425,26 ERDS2FJ472 1/4W 4.7K ERDS2TJ472T R429 ERDS2FJ472 1/4W 4.7K ERDS2TJ472T R430,31 ERJ3GEYJ103Z 1/16W 10K R432 ERDS2FJ102 1/4W 1K R501 ERDS2FJ152 1/4W 1.5K R502 ERDS2FJ102 1/4W 1K R503...
  • Page 41 Ref. No. Part No. Part Name & Description Remarks R652,53 ERDS2FJ472 1/4W 4.7K ERDS2TJ472T R654-56 ERDS2FJ103 1/4W 10K R657 ERDS2FJ473 1/4W 47K ERDS2TJ473T R658,59 ERDS2FJ472 1/4W 4.7K ERDS2TJ472T R660 ERDS2FJ473 1/4W 47K ERDS2TJ473T R661 ERDS2FJ223 1/4W 22K R662 ERDS2FJ102 1/4W 1K R663,64 ERDS2FJ331 1/4W 330...

  • Page 42: Cabinet Parts Location

    Ref. No. Part No. Part Name & Description Remarks R866 ERJ3GEYJ223V 1/16W 22K D0GB223JA002 R867,68 MCR03PZHJ561 1/16W 560 ERJ3GEYJ561V R869-72 ERJ3GEYJ271V 1/16W 270 R873,74 ERJ3GEYJ331V 1/16W 330 D0GB331JA002 R875,76 ERJ3GEYJ271V 1/16W 270 R877,78 ERJ3GEYJ223V 1/16W 22K D0GB223JA002 R879,80 ERJ3GEYJ222V 1/16W 2.2K R881 ERJ3GEYJ101V 1/16W 100...

  • Page 43: Schematic Diagram For Printing With A4 Size

    13. Schematic Diagram for printing with A4 size H010400000KA/HH...

This manual is also suitable for:

Sc-dv280Sa-dv280eg