Power Amp - YORKVILLE AP 312 Service Manual

TO PIN 8 OF U2 TO PIN 4 OF U2
+VFLTA +FOPVA -FOPVA -VFLTA
R88A R86A
L-BDY L-BDY
33R 33R
C40A C37A
10N 10n
R35A R34A
10R 10R
AOG
10p
C36A
SIGA 37K90
R54A R90A
L-BDY
1K2
910R
R48A
R84A
R93A 220R 3
Q13A
C38A
L-BDY
J108
120K
39N
2
C49A
100p
100V
150P C34A
(4=+FOPVA,8=-FOPVA)
FET_CTRL
AOG
5
6
(4=+FOPVA,8=-FOPVA)
R47A
33U 16V
C57A
4K590
AOG

POWER AMP

M1116-PA.SCH_DATABASE_HISTORY
MODEL(S):- AP-312
# DATE VER# DESCRIPTION OF CHANGE
1 SEP/10/97 1.10 PC#5459_ADD_D29A_AT_LD1A
2 MAR/03/98 1.20 U3A_CORRECTION_TL072->33078
3 APR/14/98 1.30 PC#5686_R94A,R42A,R43A_TO_1/8W
4 . . FLAMEPROOF
5 MAY/01/98 1.40 ADD_SPEAKON
6 MAR/15/99 1.50 PC#5890_TM100_100K->10K_ADD_D31A,
7 . . R30A,R31A,Q16A
8 JUL/18/00 1.60 PC#6273_R48A_1K->220R_C38A_15N->39N
9 D V N
10 D V N
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+VFLTA
150P
100V
C10A
Q2A
MPSA93
47K
R30A
Q16A 4K7
BC560
R57A
470K
D12A
R31A
LIMA
4148
12K
R92A
-VFLTA R94A
820R
FP
R33A A
R130A
9K760
470R
33078
1/2
U3A 1K
1
R89A
R121A
FP
274R
Q14A
33078
BC550
1/2
R119A
BAT85
U3A FP
D4A
7 274R
R53A
4K7
R49A
1K070
270P AOG
RX1
ADJUST FOR 10 TO 12mV BETWEEN TP1 AND TP2
R36A
R109A
56K
MPSA93
1K5
Q15A
R55A R140A R141A R85A
22K 22K 1K2 2K2
ACLP D9A
+VFLTA
16V
Q3A
500mW
MPSA43
D19A
C46A
Q4A
4K7
25V
MPSA56
R91A
D11A 100u
D27A
4148
BAT85
3V0
D8A
D30A
4148
BAT85
D6A
C45A
25V
100u
16V
R52A
500mW
82K D20A
D29A
-VFLTA
WITH AMP COLD
2K2
R87A
R110A
1K5
DATE: JUL/18/00
YORKVILLE NAME: M1116-PA
R120A
BAV21 33R
D5A
4V7
1N750A
D23A
D7A
LD2A
RED
Q9A
MJF15032
C50A
100N
R42A
1K5-FP
Q1A
R123A
FP
220R
MPSA06
R46A
62K
R51A
75R D1A
D13A
R50A
75R AOG
R56A
62K
R122A
Q5A
FP
MPSA56
220R
R43A
1K5-FP
C48A
100N
Q8A
MJF15033
LD1A
D2A
RED
4V7
IN750A
D24A
R124A
D3A
BAV21
75R
MODELS: AP-312
PCB#&VER: M1116
+63V
Q11A
MJL21193
1N4004
D26A
AOG
4R7
R125A
1
4R7
R126A
R112A
0R18
47N
L1A
C33A
5uH
R114A
1W
R111A
10R
0R18
AMP_A_OUT
2
5 3 1
JB2A
T R S
6 4 2
5 3 1
1N4004
D25A
JB1A
T R S
Q12A
6 4 2
MJL21194
AMP_A_OUT
AOG
SPEAKON
1+
1-
2-
2+
.
-63V SPEAKON
FOR EXPORT
UNITS ONLY
SHEET 7 OF 7 SCH ISSUE: 1.60
TITLE: POWER_AMP