Pioneer PDP-505MX, Service Manual

Page: 93 / 107

PDP-505MX
93
5 6 7 8
5 6
7
8
C
D
F
A
B
E
High Voltage Board;
Surface
High Voltage Board; Reverse
PH2402F
PH2402F
Check points
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)
OK: Diode characteristic
NG: Other than above
(7-2) Symptom: No Picture. (Priming doesn't flash if W-X terminals doesn't have Diode characteristic.)
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
R146
OK: About 4.7
Ω
(2W)
NG: Open