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© NEC Corporation 2000

NEC Color PDP QA

31

Fuse Resistance(R20)

Fuse Resistance (R12)

R20  OK : About1.0kohm(1/4W)
NG: Open

R2  OK  : About2.2ohm(1/4W)

NG : Open

Fuse Resistance (R2)

R12  OK : About1.0phm(1W)

NG : Open

R20

R12

R2

© NEC Corporation 2000

NEC Color PDP QA

32

Data IC

Data Relay PKG (R-T,R-B) 

No 1 or No 2 pin of CN7711,CN7911

(Vd Line of Data IC)

OK: Open

NG: Short

(1)

Remove CN7711 and CN7911 of each Data relay PKG 
(R-T,R-B),  and check between No 1, or No. 2 pin and 
GND of each connector with tester.

(2)

When short, Since there is a certain possibility data IC 
connected to Data relay PKG is failure. Remove the heat 
sink on data IC and check whether there are any 
abnormalities, such as destructive sign in the surface.

OK: Open

NG: Short

Check between No 1 or No 2 pin and GND.

Check between No 1 or No 2 pin and GND.

© NEC Corporation 2000

NEC Color PDP QA

33

Parts Location

PH2301

High Voltage PKG

© NEC Corporation 2000

NEC Color PDP QA

34

Power HIC

PH2301 on the back of High Voltage PKG

Check point

A - C     I - J      P - R
B - F     J - K     Q - R

C - D     K - L     S - T
C - E     M -U     T - U
G - T     N - P    U - V
H - N     O -P 

L

F G

H

M

E

D

C

B

A

Judgment

OK  : Diode characteristic

NG : Except above

I

K

J

N

O

P

Q

D

(16-20)

F

(27-28)

A

(1)

V

(112)

C

(9-14)

B

(3-7)

E

(21)

G

(32)

H

(44)

I

(52)

J

(57-60)

K

(62-65)

L

(67-70)

M

(72-75)

N

(80-83)

O

(85)

P

(87-90)

Q

(91)

R

(94-97)

S

(99-102)

T

(104)

U

(106-109)

56

(Cautions) D, E, F, G, I, and R are GND.