Bose AM-25P II Owner's manual

SUPPLEMENT
®
Bettersoundffrou_ 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

Digital Bassbox DSP PCB Revision Matrix
U202 Micro Micro U401 EPROM EPROM DSP PCB
Part Number Rev. Part Number Rev. Part Number
251561 20 251560 20 251705-001
251705-002
251705-006
251561 20 251708 21 252183-001
252183-002
252183-006
251707 23 251708 21 252946-001
252946-002
252946-006
252941 28 252942 23 251713-001
251713-002
251713-006
252941 28 252942 23 253283-001
253283-002
253283-006
254101 30 254102 30 253858-001
253858-002
253858-006
Module
Part Number
251706-001
251706-002
251706-003
251706-006
252184-001
252184-002
252184-003
252184-006
252947-001
252947-002
252947-006
251714-001
251714-002
251714-003
251714-006
253284-001
253284-002
253284-003
253284-006
253859-001
253859-002
253859-003
253859-006
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