1550/1560 OPTICAL
7 - 18
Mar. 1998 © TOSHIBA
ON
ON
ON
ON
ON
ON
ON
ON
A
B
A
B
7.4.2
Pulse motor dirve circuit (constant voltage type) (M3, M4)
Lens motor (M3) (LMS-MTR)
~Driven by IC5 (Logic PC board: TD62308F)
Mirror motor (M4) (MRR-MTR)
~Driven by IC4 (Logic PC board: TD62308F)
678
DC
24V
DA
DA
QA
QA
QB
QB
DB
DB
TD62308AP
The diagram on the right shows signals impressed
to QA, QB, QA, and QB bases in two-phase exci-
tation.
The ON/OFF combination of the transistor is
switched.
The combination of phases to which the current
flows is switched.
Motor rotates
→→
Phase A
Phase A
Phase B
Phase B
Summary of Contents for 1550
Page 11: ...1550 1560 GENERAL 2 4 Mar 1998 TOSHIBA ...
Page 112: ...1550 1560 DRUM 9 12 Mar 1998 TOSHIBA 1 16 48 CLK SI1 LT OUT1 1 2 64 Timing chart ...
Page 167: ...Mar 1998 TOSHIBA 13 25 1550 1560 OPTIONAL 13 7 4 PC board assembly PWA F PFU ...
Page 188: ...Mar 1998 TOSHIBA 14 21 1550 1560 CIRCUIT DIAGRAMS Control Panel Circuit PWA F PNL 4 4 ...
Page 189: ...1550 1560 CIRCUIT DIAGRAMS 14 22 Mar 1998 TOSHIBA 14 4 Fuser Circuit PWA F FUS ...
