Harman Kardon HD 990, Service Manual

Page: 49 / 61

1 2 3 4 5 6
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B
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Title
Number Revision Size
Tabloid
Date: 23-Nov-2006 Sheet of
File: C:\Documents and Settings\new\ Ḡ䴶 \shaka\DVD22_rev2_71.DDB Drawn By:
PH1
PC817
LF1
50mH
RV1
FNR10K471
EC1
47u/400V
IC2
KA431
R23
5K1
R24
5K1
1
R1
1M / 1/4W
D1-D4
IN4007
1
R2
68K/1W
1
R3
360K / 1W
D5
1U08
CAUTION:
CY3
102/~400V
CX1
104/~275V
C1
103/1KV
C16
104/25V
High AC Voltage !
RISK OF ELECTRIC SHOOK !
To MotherBoard
R21
47R
D9
FR104(NC)
D8
FR104
EC4
470u/16V
EC7
220u/16V(NC)
EC5
220u/16V
L3
20uH
EC8
220u/16V(NC)
EC6
220u/16V
A +5V / 300mA
A -5V / 5.6mA
C10
104/25V
D13 RF104
R19
220R
A +5V
+5VSB
A +12V
A -12V
M +5V
AGND
AGND
DGND
!
!
!
!
!
!
!
!
High DC Voltage !
EARTH
Vin
2
GND
1
Vout
3
IC4
79L05(NC)
CY1
471/~400V
CY2
471/~400V
R20
220R
FU1
T1AL125V(250V)
L
2
N
1
JP1
CON2-8 VH
T1AL250V
AC Input
ABOUT FUSE RATING:
T1AL250V
!
!
!
G2 G1
GND_WASHER
G3 G4
AGND
AGND
GND
<LFRQJ+XDQJ
1 1
-7.5V / 5.6mA
+7.5V / 300mA
Note: The Test Data Was By Playing a Common
C
D Disk,
And I
s
Only Provided For Reference.
D +3.3V
!
D11
FR104
EC12
100u/25V
D10 FR104
EC9
220u/25V
EC11
100u/25V
EC10
220u/25V
L5
20uH
L4
20uH
A+14.5V / 230mA
A-14.5V / 50mA
C11
104/25V
AGND
AGND
-14.5V / 50mA
+14.5V / 230mA
D +5V
D +5V
DGND
MGND/DGND
D12 21DQ10
EC14
220u/25V
EC15
220u/25V
L6
20uH
EC16
220u/10V
A +5V / 200mA (1A Max)
C12
104/25V
ADJ
1
Vout
2
Vin
3
IC5
LM317
+7.5V / 200mA
R13
220R
R14
680R
SC1
MCR100-6
R15
10K
R16
100R
Q2
9014
D14
1N4148
EC17
47u/25V
DGND DGND
L7
10uH
EC20
1000u/16V
D15
31DQ06
EC19
1000u/16V
Imax=1.2A
C15
104/25V
+5.0V / 660 mA
D17
IN4001
+3.3V / 160mA
Vin
1
GND
2
Vout
3
IC6
BA033T
EC21
220u/10V
+5V / 660mA
+4.24V
D16
1N4148
EC18
47u/25V
R18
2.2K
R17 2.2K
L8
20uH
STANDBY
+5VSB
DGND
DGND
DGND
DGND
Vin
1
GND
2
Vout
3
IC3
LM7805
EC22
2.2u/25V
C13
473/25V
D18
1N4148
Q3
8550
R25
5K1
R22 2.2k
CN1
CN2
1
3
8
9
10
11
13
12
14
15
14
10
16
REV 2.7 1254C
5
6
7
8
1
2
3
4
IC1
KA5L0365R
R4
10R
D6
FR104
D7
FR107
R5
47K / 1/4W
R6
10R
Q1
2N5551
ZD1
16V
C2
473 / 25V
EC3
4.7uF/160V
EC2
47uF/50V
C3
683 / 25V
NTC
5
6
7
C14
104/25V
Drain
Drain
Drain
Drain FB
GND
VCC
NC
R26
1K
ZD2
18V
+5VSB
+5VSB
HD950 SMPS Schematic HD980/HD990 SMPS BOARD
EC1:
US version: 82uF/400V
EU version: 47uF/400V
HD 990
harman/kardon