PDP-425MX
47
5
6
7
8
5
6
7
8
C
D
F
A
B
E
PH2401F
PH2401F
A - D
M - L
A - E
N - P
B - D
O - P
C - D
Q - R
E - R
R - S
F - N
R - T
G - M
S - T
H - I
T - V
I - J
W - X
K - L
A
(1 ~ 4)
(112)
X
(109)
W
(107)
V
(99 ~ 103)
T
(93 ~ 96)
S
(91)
R
(86 ~ 89)
Q
(81 ~ 84)
P
(76 ~ 78)
O
(71 ~ 74)
N
(66 ~ 69)
M
(61 ~ 64)
L
(57 ~ 59)
K
B
(6 ~ 9)
C
(10 ~ 13)
D
(15 ~ 18)
E
(24)
F
(33 ~ 35)
G
(39 ~ 40)
H
(49 ~ 50)
I
(53)
J
(55 ~ 56)
(7-2) Symptom: No Picture. (Priming doesn't flash if W-X terminals are short-circuited.)
Cause/Countermeasure: No Diode characteristic
⇒
Exchange High Voltage Board.
(7-3) Symptom: No Picture. (Priming doesn't flash.)
Cause/Countermeasure:
R146 open
⇒
Exchange High Voltage Board.
R146
High Voltage Board;
Surface
High Voltage Board; Reverse
Check points
OK: Diode characteristic
NG: Other than above
R146
OK: About 4.7
Ω
(2W)
NG: Open
