Sankyo STD-1700 - Table of Contents

CONTENTS
1.
10.
11.
Specitications:,. 0c desicic sre see Shek eaten a vena eS ork CUA Ne aa GS Ea wah ete n Wabaee a ule w Soo ah ace ae ea 1
Parts identification
2.1. Control Panels eceecide ook wie he eras s ele Ee eae: Sa Whe PE Seah ose Ak baad Oat ae he Ae 2
2:2” {Connection Panel .z-cis ieee sdhecs yah eS ya eras Oe Tete cde de Seo Be Rite dranete ie aed Sh bistdlene ne bleh ee ee eS 2
2:3.-. side tOD. ViOW ci .5: oo eee ered ioe Seo ete Saco le aed eal ae Ba ere ee ped OE See Bee OY 3
2.4. “Inside DOttOm VieW: & acces ecar egies eae dG. oe Ge we al eae ee Ue uae lok wee WARS Laos 3
Technical description
3:1. Power supply Circuit: s.2.85 vee dew ee ceca ane es Weg aes case ER Wie BAL oa EE ee, Oe aw “e.3 wea 4
3:2. - Amplifier SeCtion.. sc-5 ice S sacs the Sos casa te eae Gor be oe eileen oa’ ScBuae Oo, S yay ot Sed ela eA, Beato lohan Shey ae eee 4
3.3 Cassette loading and unloading ........ 0... 0c ce eee ee ee ee eee eee ee tee ent e eee nee 4
Disassembly
4:1. ‘Removal:-of the: bonnet: <- o ves"s Gee ed eas iw Geese teed oe’ db Gwe BG REO en ere evened aan GiAla 5
4.2 Removal of the bottom plate 2... 2. . eee ee ee eee ee tence eee 5
4.3 Removal of the front panel... 0... ee ee ee ee eee eee ee tee ee teens 5
4.4 Removal of the cassette compartment .. 10... 0... cc ee eee ee ee ee et eee eee eens 5
4.5 Removal of the tape transport mechanism chassis ... 2... eee ee ee eee ee ee eee ee eee 5
Mechanical adjustment
Bt Forward: timing: .cce ik oe ee hited SHaee ek @ Siage nd rea Beg Shona eave dees & aoe Sob adh Leta 6
5.2 . Pause: timing «<i. Sean wate GES GOS ew meee Bee Wale ed Seer Save: wie vera car ge di nce ebbad awed blac wae 6
BiB sReel torQue:c, ites Seen geaee nee doe Mice allan’ settacsatie ey obs SS NSS a alcoho 1S Waptaliean%e, we Biles PUdeS aM Oe takes SA Re 7
5.4 Shut-off mechanism ...........-...00-. ea teeta age Bie han Soe le dhe at Banh tein ok te nok, 8
5:5. <Pineh-froller: pressure: inde c tie) does oocea eee actos 6a, oo base 6 bye are ce Bava tans ww de bnea ee $0 Sn boat aay 9
BiG: (Motor: DUlley cence ie Sites. dee wreck Ge ew Rie ei se Bite Bie woae By ne cw ovate a doe ele Geen A ees beee 10
Bi7> - Flywheel: thrust: 6: 0.0360, 5 eccee bie ded ed oe be TA ab ere eae ek Gnas Sinhala a a alae 10
5.8 Mutingswitch timing. ...... 0... cee eee ee eee ee eee eee eee ene ee eee nena 10
5.9 Wow and flutter and tape speed. 2... ke ce ee eee ee ene eee eee eens 11
BVO) CGA ING? 530 seo seat ke ee DF ate eee ate w Cac he Sete e es Rade a ata Eadie oh 2 Gils smb eee. MULE A eve aS 11
Electrical adjustment
6.1 Playback system block and level diagrams ......... 0.0 cece eee eee eee eee eee eens 12
6.2 Recording system block and level diagrams .. 0.1... 00. cee ee ee ee ee eee eee ee eee eens 12
6.3 DC voltage block diagram... 6 ee eee eee eee 13
Ge4e MIP XSTINGR ee is ere Scat at dele facies ce enti ee'g 0/70, We Se ab-atrereees @ face ded’ gain Sus hhc nane hive ost paca toto rsteuname Saweadsalers 13
6.5 Bias oscillator frequency ...... ccc ee ee eee eee ee eee ee et eee nena 13
6.6; ead saZimuthy icece oar She sciats Ga ae aa ww ad BOE wk eS ale BYG Rie hglew ces Ges © wire lanchy a) alana “nel Votes ee 13
6.7. Playback level and VU meters 1.0... ec ee eee ee ee eee eens 14
6.8. Playback equalizer: cs:c:ocja: esece. i Soo ek a faced egel had Ste ae ble aces Setwnde tae wae SCARY Cb ba 14
6:9. Recording Current: js. S553 5 cose ee GS, aera Gate ce Gokeegadsale: dyeehs: arterend Wi Golere 4: @hevaph Wl epee ptauetel eteva-d uae 14
6.1.0" Bias CUPEMES secure hrettacaaeere SOR ale seers ed artes te Behe, 5 hentia haat: weedeat ee avid dete ane wigeaaatoeyetes 14
E:ubrication o'. cen: c.ccecen te Bie ale: fot ech a Geter bay Tals ioe ows ateal a fo as Bes eo eele ton See ee teiea lovelies 15
Troubleshooting
8.1 - Mechanical parts: ssc.cs scacei a bereits ee Rane dk ce ES eae aw ee nee ee eee bale b eUble'a @oe elwacd etel aes 16
Be2- ClSCLrical: Parts ise: esr: seen Sain ciate a Wwe aces OS ts ane Sac bE wh SMa wwe ae Renew bat bid abieet lag colle ele 17
Drawings and electrical parts list
9.1 Schematic diagrams (STD-1800/1700) «6.2... eee ee eee ene 18
9:2° Electrical: parts: VSt® iyi we < sustie desea nassasas his i Allee a nde wee oe teheeinae ts ay, Sera iee w vatsloshk Gadde whieh aive, &e Morse ds Bo awed 21
9.3. Mounting and wiring diagrams (STD-1800/1700) ..... 0.0.0.0... cee cece eee eee eens 23
9.4 Dolby P.C.B. mounting and wiring diagram ... 0.0... ee ee ee ee eee eee nee 25
Exploded ‘Views: s 026. <0 .6c ake wheita anda ew ef eee ens Pee Sasa eee vad Woe DNS a Soy Ast ae has ata ah aMtataatta Sts Gt igs 26
Mechanical: parts: list): seis: ond kos aire doe eile atanel acca tated os Seacaid lenge a eee Sc Sa oe 8 dew GhevOaneechad aad 29