Nikko ALPHA 220 - Schematic Diagram

ALPHA 220
..
ALPHA 220
SCHEMATIC DIAGRAM
SW 3 INPUT MOOE I
DIRECT-NORMAL
W3l
Ii1o 0 I I
Le.
1 '
':;' 1 -
INPUT
ReM
WI~"'
+,2.IV
j ;~:::
~I! ~
R701
'-"
R~5
'f -11.1V
8"".
S ~
B ~
R71' 8
"01
11.1V
~ I.,.
NOTES,
1. SCHEMATIC IS SUBJECT TO CHANGE
WITHOUT NOTICE.
UNLESS OTHERWISE SPECIFIED' 2. RESISTANCE VARUES ARE IN
OHMS.
K=I
OOO; M=T OOOOOO
3. CAPACITANCE VALUES 1.
0 AND ABOVE
ARE IN pF OR .F IP = pF
, M = .FI. LESS
THAN 1.
0 ARE IN .F. IELECTROL YTIC
CAPACITANCE VALUES ARE IN .F/WV.
4. VOLTAGES ARE MEASURED TO
CHASSIS
GROUND WITH A "
DC VOLTMETER"
+1il1V
~ ,
R7"
15'
R71'
"61
10"
+",v
+63.
Bg;
;~~;
'.I;~+
R~
~I+
~~ "&8
:;:1!2tt
85.
" v-
-"" ~~.
R710
R76'
pc~
DRIVER PCB
SCHEMATIC SYMBOLS,
~ POLYESTER FILM CAPACITOR
~BIPOLAR
CAPACITOR
8 NONFLAMMABLE RESISTOR
WARNING, &. INDICATES SAFETY CRITICAL COMPONENTS.
FOR CONTINUED SAFETY
, REPLACE SAFETY CRITICAL
COMPONENTS
ONLY WITH MANUFACTURER'
S RECOMMENDED PARTS.
11,
---------
OVO.
"--"'R
8\i
0809
58 1701,.
".2200,
OSlO
""0-'001
+11V
+11."
"21
R793
8DO ,.
R19'
"I~I~I!I~I~I~
SP"'ER
58 --;p;'AK;;S
...----- ~!:
115
,..
AWN'
+50"
.1!!
:;-,
,"0"
A & CANADA
EUROPE ".
L----
Figure 6
LEVEL IND.
ASS'
I! 4582770
HEAD PHONES
A & CANOA
NOOEL
2L-- "'-
v"-
----.
EUROPEAN
MOO"
" O
51
SEMICONDUCTORS
2SA992 2AS1015 2SC1815 2SCI845
2SC2229 2SC2235 2SC1941
2SA1144 2SB772 2SC27Q4 2SDBB2
2SA9B5
2SC2275
C/.
2SAI095 2SC2565 2SK150A
G~'
SUBSTRAIT
----a:::r-
IS2076
2~A90
-M-
GP-10-4002
""*'"
RD13EB3 RD22EB4