Arcam A28 int sch

Page 1

ITEM QTY PART No. DESCRIPTION NOTES
lTEMlflfl 1 LEEIPE Blank PCB A28 Power Supply Am Nflfliifl
ITEM102 1 EM101 EarmLsadAssyfiMMrms part is Roi-15 wmpiiunt. Sulderadta SKTzfln
ITEMIUS A F232 immmh oning maria filled muPPEH HALFni amp supply naps (022870231)
ITEMl m s EBZ7AP Pad Damping isxmuM Rubbed afimgmfiéfiafflflgmghzflg Tavag) (Rn/200),
L510!) LefIOul ms
FD100 FD101
12 El
ANNOTATION
GENERAL NOTES
PmrAmpLsn £5 E . . .
micmgmn This is the Master Schematic for A28 (L991AY) and P28 PCB
Fm, am, am ma am. "gm-2&1 l assemblies. Any changes to the schematics in this document must be
5 3" 5 5 3 m, 65:33am reflected in the relevant child documents.
7 Plfll g g g Pm
é mm When generating BOMs for L991AY, ensure that the relevant
cm om components are fitted or not fitted (those with "NF" or "FIT" in the nearby text).
100M PAVERAVDC
50V . . .
0505 ET These schematics follow a simple heirarchy scheme. Sheet symbols on the top
n M m sheet represent a child or sub-sheet. Net labels on sub-sheets are local or
g specific to that sheet. Potts on the sub-sheets connect to sheet entries on
g the parent sheet, where they are connected together.
5 Primary power nets are denoted by type in parenthesis, e.g. OV(D).
.45v a Secondary nets are denoted by underscores, e.g. 0V_LS_L.
PmAm Ri ht , . .
mtcrsfiggcn To perform an electrical rule check or synchronise With the PCB, set Net
. V1003 '
$85233:ch Gsmmm Identifier Scope to Sheet Symbols/Port Connections.
0mmri R
V1013 P105
0V7F37R
$flzzim / HEADPHONE OUTPUT & MUTE
Raj-TIER
0V LS R l
1
R105 R104
fifl min
32%» i c; c.
own) NCL sKTinn
flW125 0605
mmpmemn a Mmms 0 RLVI n25 CL <33
L591CTE,2.2.SCH CONlflfl CON101
.5V7L
JGV R
715V) scam]
3
Hi3... l \
O 788, 777777777777777
0 at; A28 Trigger, RCSatPEESiu Dmed j
A28 PreAmp E LHEICWJJSGH
L981 07372.2 SCH .5)
E
OUTPUT MUTING
.
Dlfll
lNlflfla
D041
BVRIIS
SPKREJJN
HEW?
¢ i SPKRLON
R113
0V15IG) 2K2
5V4 l l
away i l
l E l
m
l I l
A2 P23 Displ
[3916!72250
DRAVMTII'LE 037E076 MJT 07/04103 Removed Luff hmdbagiiMsllYEmW,w0,Snfl,700) 2.2
A28/P28 - TOP Level Shee 05,5065 MJT 25/11:qu Addedmbbsv dampingpudsnniap ntmmponsms. 2.1
ARC A M Hay-me: 1391me 117,926 PK 25mm CMerOrinu quamrty 2.0
MM: 07,5156 SLRR talus/2007 Nmemthis sheet 1.0
ARMEM A28 07,5066 PK 20(002007 Output devices replacedsepemteemiller resisims added an
MAW Emu mun m1: Worm l-E
Wrens magi-i mum. Gun-uni: immmamo mm: W Sea 1 n1 3 mwmnuo. L991C1