Hitachi 61HDX98B Manual page 37

DP-85 SWEEP & AC LOSS DETECTION CIRCUIT
Vertical
Blanking
From
Pin 9 I601
CN01
RN01
V. Blk.
RN02
24V P/P
Horizontal
Blanking
CN03
From
Q755 Emitter
CN04
H. Blk.
RN11
RN12
PSD
2
11.6V P/P
SPOT 2
From Pin 9
of Micro I001
3
Cut Off
Vertical
Output IC
I601
R602
5
Invert Input
Non Invert
4
Input
Stops Vertical Drive
5V
during Cut Off
R604
adjustment, I
R605
12V
RN04
RN03
DN01
QN01
CN02
12V
RN10
RN09
DN04
RN06
DN05
QN03
QN05
DN06
RN13
Prevents CRT Burn
Spot Inhibit
Q610 QN07
Vert SAW
Q601
Q602
2
C
RN05
QN02
DN02
DN03
12V
RN07
QN04
RN08
DN11
DN16
DN14
DN09
DN10
RN16
0V
QN06
8.57V
8.57V
RN15
CN05
DN07
9.72V
RN17
CN06
Horz. 13V Loss/
Start Up Spot Killer
QH02
RH40
High Voltage
Driver IC
IH02
14 Reference
1 Feed Back
13 Error Out
12 Error In
7 Drive
Stops High Voltage
Drive Signals From
being produced
during 13V start up
From I906 Pin 3
RN14
AC Photo Coupler
10V P/
P
DN08
ACK 5V
RN18
RN17
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