Aug.2001 DR-670 CIRCUIT DIAGRAM (JACK) fig.jack 26 27 A B C D E 4 4 9V A8V 2SQ C1 1740S + 2 1 1 2 1 2 D1 C2 R 2.2 2k R 101 k +A4V 2 3 1N4004 100/16 C1 CN1 100/16 A2001WV2-2P 1 A C3 0.1 C4 R3 JK1 47/16 10k C5 DC IN 9V 4 47/16 5 1 3 2 A A HEC2392-01-150 SW1A 3 POWER 1D2 2 1 3 2 3 1N4004 HSW-2022-01 C6 C7 R4 R5 VOLUME 47p 10/16 10k 12k A C8 C10 47p 10/16 R7 C9 47k R6 0.0047 C11 47k TO MAIN BOARD 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 A D DFF FOO O A AOO O OOTT U UT10 - T TG - -L RND C 101 /2 16 R 101 04 k + R 108 k C1R 1 409 k R 101 k0 2 3 C 331 05+- p I BC A1 1 1A 5218 10/16 1V 1 20R k1 AA + 2 3 I NC J2 M+- A 4556 1 R 331 03 C 101 /3 16 R 561 k5 R 1k11 R 1k12 L B1 CB809535-600 12 4J HK T2 J-064-10I L(MONO) 11 13 2 560p 3 Q2 C16 A A A A DTC343TS 270p CN2 C17 A 150p 1 B2011H02-8P A A A C18 R16 R17 C19 10/16 10k 12k 47p A C20 C21 47p 10/16 R19 47k R18 2 R26 C 0.2 02 047 6 5 +- 7 C 102 /3 16 V 10R k1 AB + 6 5 +- 7 47k L B2 CB809535-600 2 4JK3 R 2 23 L3 1k C24 R20 R21 R22 IC1B 22 R25 C25 R23 R24 1 10/16 10k 10k 10k BA15218 330 10/16 R28 1k 1k BCB809535-600 R 102 07 k + C26 C27 IC2B 56k C28 HTJ-064-10I 21 2 R29 560p 330p NJM4556 3 Q3 270p FOOT SWITCH 2 3 L4 1k A A A C29 A DTC343TS A 1 150p 1 BCB809535-600 A A A JK4 HTJ-064-10D C30 100p C31 100p + A L5 + C 473 /2 16 R 2230 BCB809535-600 2 1 D3 D4 1SS133 1SS133 R 2232 L B6 CB809535-600 2 3JK5 PHONES 1 2 R31 1 220k C34 C33 VR1C + + 10/16 47/16 A HTJ-035-09D 2 R33 3 Q4 SW1B R35 A 100k DTC343TS 100k R34 C35 10kA - - IC2C 3 Q 2S5 A1015 100k 3 Q6 100p C 103 06 p 20 10 8 8 1 1 2 + I BC A1 1C 5218 C37 + NJM4556 C38 A A DTC343TS 1 0.1 0.1 C 103 /9 16 A A A 1 40 30 20 10 4 4 2 1 A A A A A HSW0847-01-010 A D A B C D E 1 2 3 4 5 6 7 8 5 FOOT1 6 FOOT-GND 7 DAOUT-L 8 DAOUT-R