Read Sharp 28KF-84H (serv.man14) Service Manual online
57
28KF-84H
Fig.1 Block diagram.
handbook, full pagewidth
DIFFERENTIAL
STAGE
MIRROR
MIRROR
CURRENT
SOURCE
MIRROR
MIRROR
TDA6111Q
7 V
supply voltage
input HIGH
feedback
output
6
Vbias
FOLLOWERS
C par
9
non-inverting
input
inverting
input
3
1
4
2
ground
(substrate)
supply voltage
input LOW
7
8
5
cathode
transient
output
transient
output
cathode
DC output
DC output
black current
measurement
output
measurement
output
MGA058
SYMBOL
PIN
DESCRIPTION
V
ip
1
non-inverting voltage input
V
DDL
2
supply voltage LOW
V
in
3
inverting voltage input
GND
4
ground, substrate
I
om
5
black current measurement
output
output
V
DDH
6
supply voltage HIGH
V
cn
7
cathode transient voltage output
V
oc
8
cathode DC voltage output
V
fb
9
feedback voltage output
Fig.2 Pin configuration.
ndbook, halfpage
MGA057
1
2
3
4
5
6
7
8
9
DDL
V
GND
TDA6111Q
ip
V
in
V
om
I
oc
V
cn
V
fb
V
DDH
V
TDA6111Q (IC850, IC851, IC852)
Block Diagram
Pin Description
Pin Assignments
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