Mitsubishi HS-7168EB Specifications

SPECIFICATIONSTape FormatPower SourcePower ConsumptionVideo Signal SystemVideo Recording SystemLuminanceColor SignalHi-Fi AudioRecording SystemLinear

-6-4. Removal of DECK ASSY1. Remove the Top Cover.(Refer to Para. 1 of the DISASSEMBLY.)2. Remove the Front Panel.(Refer to Para. 2 of the DISASSEMBLY

acbConnector OSPCB-OPE L-7-CAUTION: BEFORE ATTEMPTING TO REMOVE ORREPAIR ANY PCB, UNPLUG THE POWERCORD FROM THE A.C. SOURCE.LOCATION OF PRINTCIRCUIT B

-8-3. PCB-JOG1. Remove the Top Cover.(Refer to Para. 1 of the DISASSEMBLY.)2. Remove the Front Panel.(Refer to Para. 2 of the DISASSEMBLY.)3. Unfasten

-9-bASSY PCB-1394/D-VHSShield Cover Spring Earth EMCPart AACover D VHSaPCB HOLDERFig. 104. PCB-1394/D-VHS1. Remove the Top Cover.(Refer to Para. 1 of

-10-5. PCB-MAIN1. Carry out steps 1 and 2 of “3.Removal of Bottom Panel”of “DISASSEMBLY”2. Remove the Front Panel.(Refer to Para. 2 of the DISASSEMBLY

-11-Soldering PencilTweezersSolderChipPatternCHIP PARTS REPLACEMENTSome resistors, shorting jumpers (0Ω resistor), ceramiccapacitors, transistors and

-1-Lightly apply the clothon the UPPER DRUMASSY. Do not move the cloth.Video HeadCleaningCloth!1!2wuy!0 erqtioFig. 1-11. DECK CleaningThe following Pa

-2-aabbFELT RINGCLEANING ARMFig. 2-1aaSTAY PLATEFig. 2-22. Replacement of Major Parts2-1. CLEANING ARM, FELT RINGSET POSITION : Normal(Removal)1. Rele

-3-BACaHole in MAIN PLATE ASSYBOTTOM ASSYWORM WHEELARM (SP)LiftPull outFig. 2-3-1bcdeMAIN PLATE ASSYGroove of MAINPLATE ASSYSide ViewGREASE(MULTEMP AC

-4-aINSERT GUIDE (TU)Fig. 2-4aINSERT GUIDE (SP)Fig. 2-52-4. INSERT GUIDE (TU)SET POSITION : NormalRemove the following parts before replacing the INSE

-2-CONTENTSSPECIFICATIONS ...1CONTENTS...

-5-cdabAMAIN PLATEASSYF/L ARM ASSYF/LBEARINGGREASE(MULTEMP AC-DM)ARM (SP)ARM (TU)GREASE(MULTEMP AC-DM)acbREC LEVERRECSPRINGREC HOLDERFig. 2-6Fig. 2-72

-6-aaLEAD CONNECTORA/C HEAD UNITHeadFig. 2-82-8. A/C HEAD UNITSET POSITION : Normal(Removal)1. Remove the LEAD CONNECTOR of the A/C HEADUNIT shown in

-7-2-10.SENSOR COVER (TU) SET POSITION : Normal(Removal)1. Release the catch (a) of the SENSOR COVER (TU)shown in the Fig. 2-10 to remove the SENSORCO

-8-2-12.REV UNIT (TU),REV UNIT (SP)SET POSITION : Upside down(Removal)1. Release the two catches (a) of the REV UNIT (TU)shown in the Fig. 2-12 to rem

-9-aAREEL BELTPULLEY BUSHTHRUST WASHERBELT PULLEYPull in the directionof the Arrow (A) toremove it from theSHIFT LEVER.SHIFT SLIDERPULLEY GEAR ASSYSLI

-10-SLIP ADJUSTERCenter of theBELT PULLEYIDLER UNITMatch the Lug of theSLIP ADJUSTER withthe Center Notch ofthe IDLER UNIT.Apply GREASE(PG-641)to the

-11-2-15.CAPSTAN BRAKE SPRING, CAPSTANBRAKE ASSYSET POSITION : Upside down(Removal)1. Remove the CAPSTAN BRAKE SPRING shown in theFig. 2-15.2. Remove

-12-bbcaaLOADING MOTOR ASSY FC HOLDERLOADINGWORMMOTORHOLDERLUG TERMINALWORM WHEELFig. 2-16-1WORM WHEEL LOADING WORMApply GREASE (MULTEMP AC-DM) to the

-13-aPINCH ARMCAPPart PartPINCH ASSYMAIN CAMRibABFig. 2-17GREASE(MULTEMP AC-DM)F/L PLATEDOOR ARMARM (TU)MAIN CAMGREASE(MOLYKOTEG PASTE)MAIN PLATEASSYG

-14-Hole MAIN CAMF/L PLATEBossFig. 2-18-2BAbbaaabbBRAKE CAM PLATEMAIN CAMFig. 2-19-170mm40mm130mm99mmBRAKE CAM PLATEBackApply GREASE (MOLYKOTE G PASTE

-3-CONTENTS3-2 Check and Adjustment ofFM Envelope ...313-2-1 GUIDE ROLLER Adjustment Check ...31

-15-abcABMAIN PLATE ASSYGUIDE LAMPRemoving Direction Installing DirectionFig. 2-20CBRAKE SPRINGCatchInsert the BRAKE SPRINGunder the Catch.BRAKE (TU)F

-16-AaMAIN CAMBRAKE LEVERGREASE(MULTEMP AC-DM)GUIDE ARM (TU)BackGREASE(MULTEMP AC-DM)MAIN PLATE ASSYLB PINBMAIN PLATE ASSYHoleMAIN CAMSHAFTFLANGEof th

-17-L/D LOCK LEVERFig. 2-22bacBELT HOLDERBRAKE BELT (SP)BELT LEVERREEL DISK (SP side)Fig. 2-232-22.L/D LOCK LEVERSET POSITION : NormalRemove the follo

-18-abATENSION ARMREEL DISK (SP side)TENSIONSPRINGTENSAXISHOLDERMAIN PLATE ASSYTHRAUSTWASHERTENSIONLEVERGREASE(MULTEMPAC-DM)aBELT LEVERBELT ADJUSTERFi

-19-aaBRAKE BELT (TU)BRAKE (TU)REEL DISK (TU side)Fig. 2-26(Installation)1. Apply GREASE (MULTEMP AC-DM) [859D055O90]to the parts on the MAIN PLATE AS

-20-(Installation)Note : Install the BRAKE BELT (TU) so that its Felt Sidetouches the REEL DISK (TU side).The GREASE applied to the BRAKE CAM PLATEand

-21-CHARGE SPRINGCHARGE ASSYSWING LEVERREEL DISK (SP side)Both Sides(Front/Back)MAIN PLATE ASSYabcBackFrontFig. 2-292-29.CHARGE SPRING, SWING LEVER,CH

-22-LOADING ARMASSY (TU)MarkLOADING ARMASSY (SP)LOADING ARM ASSY (TU)Apply GREASE (MULTEMP AC-DM) to the parts .Fig. 2-30-3Fig. 2-30-2(Installation

-23-A/L LEVERBossFLANGE ofLOADING ARM ASSY (SP)MarkPart withOblique LinesA/L LEVERBackApply GREASE (MOLYKOTE G PASTE) to the parts .Fig. 2-31-2Fig

-24-TAPE GUIDE ASSY (SP) TAPE GUIDE ASSY (TU)Fig. 2-32-1GUIDE CATCHER (SP)GUIDE CATCHER (TU)Front ofMAIN PLATE ASSYBack ofMAIN PLATE ASSYApply GREASE

-4-JSTCLKLIN-INLIN-OUTLMUTELPMODMOTORVNLOSCPBPCPCBPGPLLPRTPSAVEPSLEDPSYNCPWSVPWVQHQVRECREC2RECPBCRESRESPCMREWRISRMSDETRXDSAPINDSCLKSCRSISLDSPSSSSVSYNC

-25-BADRUM CLAMPERHook here to attachDRUM CLAMPERto DRUM ASSY.DRUM ASSYRemovingDirectionInstallingDirectionabDRUM ASSY withDRUM CLAMPERLEAD CONNECTORM

-26-abbcDRUM MOTORSTATORROTOR CASESide View of END RINGThis side down. LEADCONNECTORBRUSHSPRINGBRUSHEND RINGUPPERDRUM ASSYSPACERLOWERDRUM ASSYMark usi

-27-BROTOR CASEUPPER DRUMASSYFig. 2-34-3ALockSTAY PLATEWORMWHEELHook ofBOTTOM ASSYLockFig. 2-35-1AEND RINGRear Line of MAIN PLATE ASSY Fig. 2-34-2(Ins

-28-SILICON COMPOUND(SC102)MAIN PLATE ASSYFig. 2-35-3aAWORM WHEELArrow GUIDE ARM (TU)CAPSTAN MOTORBFig. 2-35-2(Installation)1. Apply SILICON COMPOUND

-29-aaaaSSW HOLDERSSW SLIDERSSW HOLDERSSW SLIDERFig. 2-362-36.SSW HOLDER, SSW SLIDERSET POSITION : Upside downTo access the SSW UNIT, remove the follo

-30-3. Interchangeability Adjustmentof the MechanismNote 1 : Tracking may need to be preset duringinterchangeability adjustment of the mechanism.Digit

-31-3-2. Check and Adjustmentof the FM Envelope3-2-1. GUIDE ROLLER Adjustment check1.Play back an alignment tape (NM6KE2 : 859C339O90).2. Preset the t

-32-3-2-4. Coarse Adjustment of Phase1.Play back an alignment tape (NM6KE2 : 859C339O90).2. Preset the tracking.3. Observe the FM Waveform after perfo

-33-3-2-6. Tape Running Conditionat the GUIDE ROLLERs (Check 1)1. Play back an Alignment Tape.[NM6KE2: 859C339O90]2. Confirm visually that there is a

-34-3-3. A/C HEAD Adjustment 3-3-1. Slant Adjustment of A/C HEAD1. Play back a blank tape.2. Slowly turn the slant adjustment Screw C shown inthe Fig.

-1-INTRODUCTIONThis manual provides service information for the adjustmentsof mechanical and electrical operations.Due to design modifications, the se

-35-TapeGUIDE POLE (TU)GUIDE PIN (TU)3-4. Phase Adjustment1.Play back an alignment tape (NM3KE6 : 859C339O50). 2. Preset the tracking.3. Loosen the Sc

-36-4. Servicing for Tape Jamduring the Loading Process1. Remove the tape if the mechanism part is locked duetangled tape.2. Rotate the WORM WHEEL of

-37-1. Short-circuit the cathode side of D927 and the GND of the DECK ASSY using the jig shown in Fig. 2.2. Remove the DECK ASSY.3. Connect TP5X and T

-1-ELECTRICAL ADJUSTMENTSPerform only the alignments required. If proper equipment is not available, do not attempt an alignment.¢¢PRE-ADJUSTMENT SETT

LOCATIONSTP5ATP5BTPHSLTPHSRTP2HTP3YPCB-MAIN (Component side) REAR-2-PCB-HEAD AMP (Component side)

-3-Adjustment purpose[ Servo circuit ]1. Playback SwitchingPointSymptom whenincorrectly adjustedMeasuring instrument and conditionTest pointEXT trigge

-4-Adjustment purpose[ D-VHS signal circuit]2. D-VHS switching pointSymptom whenincorrectly adjustedMeasuring instrument and conditionTest pointEXT tr

-1-PARTS LIST1. CABINET ASSEMBLYr13!4!3io!026t7!2!1

1 968C050O04 TOP COVER ASSY2 669D221O40 SCREW 4 × 12 46LA0053 572D385O10 F/L SPRING4 752C672O60 CASSETTE DOOR ASSY5 701B416O40 FRONT UNIT6 752C671O40

-3-!6!5wq!2eq!1!9@0!4!7!3w!8ACCESSORY AACCESSORY B2. PACKING PARTSACCESSORYHow to pack productPack with gloss side out.Fold the corners AA, BB, CC, an

-2-2. Hot CheckThe test sequence, with reference to the measuringcircuit in the figure is as follows:(1) With switch S1 open, connect the VCR to the m

ITEMNO.PARTS NO. PARTS NAMEPACKING PARTSACCESSORYDESCRIPTION-4-1 831D190O30 PACKING SHEET 800X8002 803A570O10 CUSHION3 802B797O20 PACKING CASE11 872C2

DECK ASSEMBLY

M-025M-026G-015G-016G-023G-024G-032G-033G-203G-045G-047G-048G-049G-054G-212G-054G-212G-084G-104G-062G-201G-063G-201G-064G-065G-067G-071G-201G-201G-077

ITEMPARTS NO.ADDRESSPARTS NAME DESCRIPTIONQt.∗A-022 948B419O01 G-1 DRUM ASSY 1A-023 592B552O10 F-2 DRUM CLAMPER 1A-025 927D027O01 H-2 CLEANING ASSY 1A

G-017G-018G-088G-201G-081G-093G-031G-035G-101G-043G-034G-019G-066G-216G-211G-096G-061G-025G-057G-056G-212G-060G-044G-094G-201G-042M-014M-03112345678AB

ITEMPARTS NO.ADDRESSPARTS NAME DESCRIPTIONQt.∗A-028 621C810O10 A-5 H-7 SSW HOLDER 2A-029 622D837O10 A-4 H-6 SSW SLIDER 2G-017 948D089O01 K H-4 LOADING

INTEGRATED CIRCUITSIC2A0 270P785O10 IC HA118217NFIC2001 270P671O10 IC AN3360SBIC2002 270P671O10 IC AN3360SBIC3A0 275P410O10 IC AN3662FBPIC5A0 275P824O

D809 264P621O20 LIGHT EMITTING DIODE SEL2410E TP2D810 264P621O20 LIGHT EMITTING DIODE SEL2410E TP2D811 264P568O30 DIODE 1SS254D812 264P568O30 DIODE 1S

R2028 103P502O20 CHIP RESISTOR 1/16W 560Ω-JR2029 103P501O50 CHIP RESISTOR 1/16W 150Ω-JR2030 103P501O30 CHIP RESISTOR 1/16W 100Ω-JR2031 103P502O70 CHIP

R3C9 103P493O50 CHIP METAL RESISTOR 1/16W 2.7kΩ-FR3G1 103P505O60 CHIP RESISTOR 1/16W 390kΩ-JR5A1 103P504O00 CHIP RESISTOR 1/16W 18kΩ-JR5A3 103P504O00

-3-Connecting separate antennas (UHF/VHF)Connecting the TelevisionTo connect separate UHF/VHF antennas to the VCR:1. Disconnect the antennas from the

C2D3 141P142O10 CHIP CAPACITOR B25V 0.01µF-KC2D4 141P142O10 CHIP CAPACITOR B25V 0.01µF-KC2D6 154P340O50 CHIP CAPACITOR CH50V 4pF-CC2D7 141P144O20 CHIP

C5E5 141P140O60 CHIP CAPACITOR B50V 560pF-KC5E6 141P143O30 CHIP CAPACITOR B16V 0.1µF-KC5J9 141P143O90 CHIP CAPACITOR F50V 0.022µF-ZC5L0 141P142O90 CHI

HS-HD1100U BLOCK DIAGRAM (Digital Signal)Deck(HD1100U02051)B-1DIGITALINTERFACEPCB-HEAD AMPPCB-1394/D-VHSTRICKPROCESSOR6566671~8911VideoHeadsHH1817161

Luminance Record, Chroma Record HS-HD1100U (Analog Signal)TUNERCHSelectionAGCYNRDetailemphancernonlinear emphasisMainemphasisFM MOD13L-DETVCAMainCONV1

(HD1100U02053)HeadAmpFM AGCPEQIC2A0Luminance / Color SignalSIMPLESDLG,EQYLPFSQPBEQUALIZERNLDEEMPHQ2V15250 52J2A1VIDEOOUTVIDEO OUTBDAPC/ACCDETCK55 54PC

L-OUTR-OUTHi-Fi and Linear Sound HS-HD1100U (Analog Signal)A-RA-LRECONMIXRECLPFVCOLIMITTERRLHI-FI RECLINEAR PLAYL-INL-CHANNELR-CHANNELPCB-MAINR-IN29

Q5A5Q5A3373485STBY523Z5A1146from IC3A0REMOAMODE7980SU-SENSTU-SENSPRT29Q5A0Q5A1Protect of Power(SW9,SW5)PWSV Vcc63321716524CP-REVPC1O-LO-ULRISSSESIC5A4

N1HS-HD1100UHKEXMJMYEKHMMFMMML MAEEBBHYMEOJHHMXDCMDJGDA DDOGPG5003OSTPDRECMSMCPCB-INTERCONNECTwPCB-MAINe PCB-HEAD AMPPCB-MAINPRINTED CIRCUIT BOARDtrPC

N2HS-HD1100UQ901JP910R903D940Q9P3Q9P4R907D905Q903C906C923R924D902R9L1C936L904TPCPMV+30VJP930D914R920C914Q908D931L903C929SW5VSTBY3.3D943R985C985D985Q98

-4-1. Removal of Top Cover1. Remove the two Top Cover fastening screws (a) shownin Fig. 1 and remove the Top Cover in the directionshown by arrow.2. R

N3HS-HD1100UIC2001,IC2002 AN3360SBVideo Head SWAudio Head SW/ D-REC SWGND (Video Small Signal)GND (Audio Small Signal)Video Head Amp SWVideo Head Amp

N4HS-HD1100UC3F7R3C6C3F4R3C4C3E7C3E6C3F0R3C8L3A1C3E5 C3E4C3E9C3C1A-RA-LC3B8C3C0C3B9R3B9TP1AMC3D9C3E0L3A2C3E1TP3XR3C7R3B8R3G0LIN-INLIN-OUTR3A7R3A5R3A6R

N5HS-HD1100U+30VSW9VSW5VAFTVTP12SIFCONV-A-INL01CONVSWC03CHSWC12JP04L04TP11C10C09R03L03R05TU01R04C2B9R2B9Q2A2C2E9R2B7R2A3JP2A3JP2B5TP2JTP2GTP2BTP2ATP2H

N6HS-HD1100UIC5A1 BR24C16F-E2/CAT24WC16J-TE13Slave WordAddress ResisterAddressDecoderDataResisterControl Logic16kbit EEPROM ARRAYHigh-VoltageGenerati

N7HS-HD1100UIC8A0 µPD16312GB-3BSSERIALI/F6D IN5D OUT8CLK9STBOSC44OSCTIMING GENERATORKEY SCANDISPLAY MEMORY16Bits 5 11WordsKEY DATA MEMORY(4 5 6)10~13

N8HS-HD1100UIC5D02 SN74ACT244NSRVcc1234567892OE1Y12A41Y22A31Y32A21Y42A12019181716151413121OE1A12Y41A22Y31A32Y21A42Y1GND1110INPUTOUTPUTYHLXHLZFUNCTION

N9HS-HD1100UIC7A06,IC7A10 TC7SZ126FUGNDIN AG32154Vcc OUT YINPUTOUTPUEYLHHZLHTRUTH TABLEAGXLHXZ : IMMATERIAL : HIGH IMPEDANCEIC7A07 TC7WH74FKINPUTOUT

N10HS-HD1100UTPNABEDRLEDJ7A05Not EmployedR7C20R7C21L_RSTR/WR7B69R7B68R7B67R7B66R7B50R7B49LINK_INTR7B44R7B43R7B42R7B41R7B39R7B38R7B37R7B27R7B24R7B36R7B

N11HS-HD1100UIC5005 SN74LVTH574PWRVcc1234567891Q2Q3Q4Q5Q6Q7Q8QCLK201918171615141312OE1D2D3D4D5D6D7D8DGND1110INPUTSOUTPUTQHLXXHLQ ZFUNCTION TABLE(each

N12HS-HD1100UIC3818 SI-3033LSA-TL1VoutTSDGNDVcIN(MIC)IN(PTr)347,85,6IC3819 NJU7018M18234765OUT1OUT2IN 1IN 1IN 2IN 2VDDVSSD3A/HSRFFD/HSLFFSRE

-5-a3. Removal of Bottom Panel1. Remove the Top Cover.(Refer to Para. 1 of the DISASSEMBLY.)2. Remove the two fastening screws (a) shown in Fig. 2.3.

N13HS-HD1100UCS1RY/BYWPFLASHINBMD14BMD13BMD12BMD11BMD10BMD9BMD8BMD7BMD6BMD5BMD4BMD3BMD2BMD1BMD0BMA20BMA19BMA18BMA17BMA16BMA15BMA14BMA13BMA12BMA11BMA10

N14HS-HD1100UC212216B046011891312C9216B0460181821C1514216B0460112D803D824D823D822D821D802D801D804D805D809S801S802S803S805S804S820D812D811D813D814L801C

N15HS-HD1100U34F500mA81EEBEE++1+A-IN++21++5030V BTLFSCN.CSDASCLBTAGCCHSW+5411011 201584111122++BE41403231++4645523113611212EB+++BE3112 1011213+10+++E