Tascam DA-30 Service Manual

ITA VWI |1. Details of each TP terminaleTP401No.1 PLfree-runningfrequencyoutputtermi-nalNo.2GNDe@TP402No.1PLLshortingterminal—shortedtogroundwhenthePLLfree-runningfre-quencyisadjusted.No.2GNOeTP403No.1+5V—+powersupplyoferrorratecounterNo.2GND—GNDoferrorratecountereTP404No.1FSYNC—frame syncsignaloutputterminalNo.2FLAG—errorcorrectionflagoutputterminalNo.3C2—CcorrectionerroroutputterminalNo.4GNDeTP405No.1XTEST—TESTterminal (shortedto,GNDduringtesting)No.2GNDe TP407 SWH — switching pulse output terminal@ TP410 ENV OUT — envelope output terminale TP412 No.1 ENV — envelope output terminalNo.2 GNDe TP413 No.1 PILOT — ATF pilot signal output termi-"nal :No.2 GNDOSCILLOSCOPEFREQUENCY COUNTERae OeO90 oFig. 4-2 Connection of test points for measurementSHEFOMELS7MHZ164 - 166ACHATForeaATForeaaT Pik° TP401* TP402© TP403° TP404° TP405°TP407 -© TP410° TP412° TPALSATF oresFONSNO.1 PLL BEM RRMANO.2 GND €NO.1 PLL Ya — beM-F--- PLL BEAR:SbFCHIT.WO.2GNDNO.1¢5¥---25—-b—-h*aADYI—+BKH0.2GND---x5—-U-bhe #979—GNDNO.1FSYKC--—-7V-ARMSSUF3NO.2FLAG—-x5-8775SMARTiN0.3C2---¢IES>-HOMEF’NO.4GNDiYO.1XTEST-~-TESTHEF(TESTBYGNDICET)6:NO.2GNDSWIR--24opFY9RMAF:ENVOUT-—--zvo-FHS:3NO.1 EXV-—-x 4X0— SMMHO.2 GNDWO.1 PILOT---ATF “4 O7 FBS AMFKO.2 GNDAagyy:hweeTaetaleaLS7MHz31-33ATF oreoFig. 4-3Frequencypatterns ofthelevelcheckingtesttape(TY-7111)%LALAF—A(TY-711)AikBet 9—\