Teac MT-20D-IO Maintenance Manual page 220

5-3-1 PCBA Drive Control (Part No. 15532057-00)
Symbol
TEAC Part No. Part Name/Rating Remarks
No.
-
l333205 7 -00 PCB Drive control Before issue H
-
13332069-00 PCB Drive control After issue
J
U1 13442528-00 IC
Control logic
U2 13442537-00 IC Encoder amplifier
U3 13442529-00
IC
Driver
U4 13441245
IC 74LS74A Before issue H
U4
13447452 IC 592 After issue
J
U5 l3441346 IC 74LS123 Before issue H
U5
13447452
IC 592 After issue
J
U6 13447564 IC M51836FP
-
16191162 Heat sink For U6,
before issue H
-
16191164-00 Heat sink
For IT6
~
after issue
J
-
16401206 Pan-head screw 2x6 BBNM X2, for
attaching heat
sink, after
issue
J
-
16490000 Nut 2 BBNM X2, for
attaching heat
sink, after
issue
J
U7 l3441231
IC 74LSOO Before issue H
U7
13442516 IC uPD4052BG After issue
J
U8
13442527 -00 Ie Write amplifier
U9 13442526-00 IC
Read amplifier Before issue H
LT9 13442749-00 IC
Read amplifier After issue
J
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