Magnavox 19MDTR20 Service Manual page 26

CRT/H.V. Block Diagram
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
CN502 CL502B
FROM
5 +B
POWER
6 +B
SUPPLY
BLOCK
3 DEF+B
CN2602
JUNCTION-B
CBA
CL503B
CN503
8 V-DRIVE
FROM/TO
4
H-DRIVE
CHROMA
3 FBP
BLOCK
7 ACL/ABL
CN1301
5
V-RAMP-FB
CN503 CL504B
FROM
12
RED
CHROMA
11 GREEN
BLOCK
10 BLUE
CN1301
JUNCTION-A
CBA
1-5-11
Q572
H.DRIVE
WF10
CL502A
5 5 +B
6 +B
6
3 3 DEF+B
CL503A
8 8 V-DRIVE
4
4 H-DRIVE
3 3 FBP
7 7 ACL/ABL
5
5 V-RAMP-FB
CL504A
4 4 RED
3 3
GREEN
2 2 BLUE
REC VIDEO SIGNAL
IC551 (V-DEFLECTION CONTROL)
THERMAL
PROTECTION
7
AMP
1
Q571
T572
H.OUTPUT
6
J553
+B
FOCUS VR
T571 F.B.T.
J563
HV
GND
F
S
1
11
3 8
10
5
7
4
9
6
H.V. CBA
WF12
Q501
Q502
RED AMP
GREEN AMP
CRT CBA
DVD VIDEO SIGNAL
PB VIDEO SIGNAL
5
PULSE
UP
3
ANODE
FOCUS
SCREEN
SCREEN VR
CL501A CL501B
1 HEATER 1
3 +180V 3
WF13
BLUE AMP
Q503
WF14
1-5-12
L551
WF11
D.Y.
5
V-
DRIVE
4
3
H-
DRIVE
1
CN571
ANODE
JK501
FOCUS
SCREEN
GND
V501
R
CRT
G
B
HEATER
CN501
GND
TD857BLCRT