Daewoo DTR-14D9ME Service Manual

Download Service manual of Daewoo DTR-1420ME TV for Free or View it Online on All-Guides.com. This version of Daewoo DTR-1420ME Manual compatible with such list of devices, as: DTR-20D9MP, DTR-2120ME, DTR-2131MP, DTR-2131MZ, DTR-21D9ME

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-48-
N Function Description
1 Blue Input Input of the blue amplifier. It is a virtual ground with 3.8V bias voltage,
15 microamperss input bias current with 14K input resistance.
2 Vcc Low voltage power supply, typically 12V.
3 Green Input See Pin 1.
4 Red Input See Pin 1.
5VDD High voltage power supply, typcally 200V.
6 Red Cathode Current Provides the video processor with a copy of the DC current flowing into
the red cathode, for automatic cut-off or gain adjustment. If this control
is not used, Pin 6 must be grounded.
7 Red Output Output driving the red cathode. Pin 7 is internally protected ahainst CRT
arc discharges by a diode limiting the output voltage to VDD.
8 Ground Also connected to the heatsink.
9 Red Feedback Output driving the feedback resistor network for the red amplifier.
10 Green Output See Pin 7.
11 Green Cathode Current See Pin 6.
12 Green Feedback See Pin 9.
13 Blue Output See Pin 7.
14 Blue Cathode Current See Pin 6.
15 Blue Feedback See Pin 9.
PIN FUNCTION
BLOCK DIAGRAM OF EACH CHANNEL
40k
0.8k
1k
5
(12, 9)15
V
DD
14
(11, 6)
20k
350
35 35
2
1
8
GND
(3, 4)
13
(10, 7)
REFERENCE
VOLTAGE
5101B-02.EPS
BLOCK DIAGRAM OF EACH CHANNEL