Bose AM-25P II Supplement

SUPPLEMENT
®
Bettersound ffrou_ research®
Powered Acoustimass ® -25 and -30
Series II Speaker System
AM-25P II/AM-30P II
Digital Bass Module
The parts listed below have changed or have been removed from the DSP PCB. Insert this
supplement into your service manual, part number 199401.
Refer to the matrix on the back of this supplement for a complete list of U202 and U401
revisions and the DSP PCB and Module part number changes per revision.
Reference Description From To Note
Designator Part Number Part Number
R314 330 Ohm, 0805, 5%, 1/10W 133626-3315 Delete
R315 39 Ohm, 1206, 5%, 1/8W 124895-3905 Delete
C312 .0047uF, Disc, 60, AC 149016 Delete
U202 TMP87PH47U, uC, OTP 251561 254101
U300 IC Relay, NEC PS714L-1A 190334-001 252450 3
U401 M27W210, PLGC, EPROM 251708 254102
Item Description Note
Number
4 1,3
A
11 1,3
Module Assy., 120V
Module Assy., 230V
Module Assy., 100V
Module Assy., Dual
PCB ASSY., DSP, 120V
PCB ASSY., DSP, 230V
PCB ASSY., DSP, DUAL
From
Part Number
251706-001
251706-002
251706-003
251706-006
251705-001
251705-002
251705-006
To
Part Number
253859-001
253859-002
253859-003
253859-006
253858-001
253858-002
253858-006
Part List Notes:
1. This part is not normally av0ilable from Customer Service. Approval from the Field Service
Manager is required before ordering.
3. This part is critical for safety purposes. Failure to use a substitute replacement with the
same Safely ch_ra_te_'istlc;s as the recommended replacement part might create shock, fire
and/or_hazards.
i
© 2000 Bose Corporation
Supplement Manual
Part Number 199401-$1