Table Of Contents - Teac TASCAM DA-P20 Service Manual

CONTENTS
1. SCHEMATIC DIAGRAM .
1-1. CN PCB ASS'Y .....ccsesssens dso da weve SURG ua Siewos nodule dus yas on evan vbeudbonseustoung uc ueseeeeeunioes 1
TZ. «(Main PCB ASS'y (LOGIC) :oncceiccssccccisijceicstcesvnsietsosesicevseaususnaasevecsuauseussauebenscacbuavaus 2
fo3. Mali PCB. Ass'y (AUCIO) «series sciaiasietsdescctssuctces sscuqustatsdasonsncetincrsNcetenssiacandeeauans 3
1-4. Main PCB Ass'y (Motor Drive) bce ie telah felons tate. istivosvoncudasucececessseands 4
1-5. Main PCB Ass'y (POWER SUPPLY) ........:ssssssscessecsssuscssurssncussusessessersrensnenrerenes 5
1-6. Main PCB Ass'y (Digital Interface) ............00000 Beak Tada anatorgs wesc adeet 6
D0e VP PCB ASS Y scitssseccavavsSascacaiictesitessavanseics naassaveinaspsinsesvedasssunmccussacteesersndszesauiies 7
Ped.) PRE PCB ASS! Y scs cssisscacsvckeidseneudsnupnasnsnacevseacssoesosscadedbanscddeuveeusagewasktessuesaceasaeiaiane 8
Os: SUB PCB ASS Vices os ccciisscsconveaceecesvawanunvuinicakindoeedaccavacanuearcensbdssa cocveassacspeamsncuete 9
1-10. HP PCB ASS'Y ....cssssssccsesssssssensrsssnsenssnssescssssssneneessnsnenssesstatacacensesonsessessensnansnsons 10
2. PCB VIEWS & MAJOR WAVEFORM
291s MIN PCB ccccsccisievuccssncnsanscnnnsnees sddubausdesbavuateotanesaccasdasioaacuacsvedduxsesevseuscstodsaseacizte 11
2-2. SUB PCB, ATF PCB, PRE PCB, HP PCB, CN PCB......cccsssessssssssssnsesesenessneseens 12
Bea MAIOT WAVETORING ec scaiec cc cciivencepavinbnniasacesatacesovcdccuces suse cenvasansbbstdeunieesusenteecuaannioe 13
3. | BLOCK DIAGRAM FOR DA-P20.......:ccsssssssscssscscssrsseesscesesessnsconscsesesensassensnensneverses 14
4. LSI FUNCTIONS
4-1. Main CPU A (HD62004A) and B (HD62014,A) ........ccssscssssssssersssesnerssensnecsteesress 16
4-2. Micro-computer (.PD7531 2) terminal FUNCTION .....cccsscecsesessecessecesenecarseseereres 23
4-3. 'Digital VO and Audio Interface (TC110GO8AF).........ccsssssssseesesesessccsseneeeeerses 25
IC BLOCK DIAGRAM
Sl: Data SWODE IC (HATZ 109) zcscct aia sswsinsnssncswusucensnccndlosuavaserscatenssacwanccdatuadsaesueadeeuch 29
5-2. Head Amp. (HA11851 MP) ....csssssssssssscssscorsscsssssnzcssecscrscsenocscecesesensecousesenseszerses 30
5-3. Digital to Analog Converter (PCM55HP) .......ssssssssssssssssnersssscsesseseereenesensesseees 31
BoA PRBM-(CAMGS 25GB LEP) oes csscepsascccnscnvuccvenesaseceuveevacessecsuscseduveedadencedvanspiaansesanieben 31
5-5. Loading Motor Driver (MS54649) icccscccinsaeccscevencansnsctcacenacseasssnsvecdeadseouncstiecccouesses 32
5-6. Cylinder Motor Driver (HA13403MP) .......cccscsssssscsssscscerconceneccessserecceareeasensenees 33
5-7. Capstan Motor Driver (HA13403) ......cccccsscsssessssesessessssesseeseenseseneseeeeraneansecseeees 34
5-8. Multiplexer (IP D4053): « .ccissseccasccscteonasecenusisassdaveassansaconessadcoeseccacdbsaceiuaceveeavenaszes 34
5-9. Voltage Regulators (M5S236ML) ...........:ccssccscssscsssssensssscussseoneeeceseneesenersscersrenees 34 |
5-10. Voltage Regulators (S81 250HG) .......sscccscssssssesseseesssccenserssseencessnesstsascsseeaeeeaes 34