Panasonic CT-34WX50 Service Manual ▷ View online
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G-Board
A-Board
K-Board
P-Board
L-Board
DD-Module
CC-Module
H-Module
D-Board
U-Module
AG-Module
DG-Module
Q-Module
Serviceable Boards
Non-Serviceable Boards
(See Note)
Note: When a non-serviceable board is determined to be
defective, please replace the board and return the
defective board to the factory.
defective board to the factory.
Board Number
Board Designation
TNPA1531
G-Board, Front terminal
TNPA1532
K-Board, LED
TNPA1536AB
L-Board, CRT Drive
TNPA1675
P-Board, AC Power
TNPH0306AF
D-Board, Power Deflection
TNPH0340
A-Board, Main
Board Number
Board Designation
TNPA1520AC
DD-Module, DC DC
TNPA1523AB
Q-Module, V-Deflection
TNPA1524
AG-Module, Analog Core
TNPA1525AD
U-Module, MPU
TNPA1526
DC-Module, Digital Core
TNPA1676
CC-Module, C.C./V chip
TNPA1710
H-Module, AV switching
Chassis Board Layout
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RING CLAMPER
TWEETER(R)
CENTER SPEAKER
GRAY
ORANGE
DEG
AC
WHITE
SPEAKER(L)
Replace AC cord
L-BOARD
SPEAKER(R)
RED
G7
A22
RT1
A-BOARD
D-BOARD
DY
D16
L3
L12
FROM CY
L2
L1
IC451
TO DY
G8
TWEETER(L)
45˚±10˚
Location of Lead Wiring
- 9 -
Service Hints
Before servicing
(1) Remove the screws fixing the rear cover (11 pcs.: Refer
to Fig. 1).
(2) Remove the rear cover by raising the chassis a little
and pulling to the rear
. (Refer to Fig. 2.)
*
At this time, disconnect the coupler P11, the ring
clamper, etc. as required to facilitate the pulling out of the
chassis.
clamper, etc. as required to facilitate the pulling out of the
chassis.
*
After completion of servicing, any disconnected couplers
and clampers must be restored to their original condition.
and clampers must be restored to their original condition.
In regard to inspection of A-Board
and D-Board
and D-Board
The A-Board and D-Board can be inspected from the pat-
tern side when the chassis is pulled out and tilted up.
(Refer to Fig. 3.)
tern side when the chassis is pulled out and tilted up.
(Refer to Fig. 3.)
*
At this time, disconnect the coupler P11, the clamp, etc.
as required to facilitate tilting of the chassis.
as required to facilitate tilting of the chassis.
*
When tilting the chassis, pay sufficient attention to the L-
Board at the neck of the picture tube
Board at the neck of the picture tube
Fig.1 Positions of the screws fixing the rear cover
Fig.2 How to tilt the chassis
Fig.3 Inspection of the A-Board and D-Board
1
2
10
5
9
11
6
7
1
2
3
4
8
1
2
Insert a cloth or similar so that
the Board will not have contact.
the Board will not have contact.
A-Board
D-Board
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P3
P2
P1
D3
8pin Cable
8pin Cable
D2
D1
3pin Cable
Inspection of the P-Board
As the P-Board can not be inspected from the pattern
side, refer to the pattern side/parts side of the circuit dia-
gram (Page 66, 67), and perform the inspection by bring-
ing the tester into contact with the jumper wires and
parts.
side, refer to the pattern side/parts side of the circuit dia-
gram (Page 66, 67), and perform the inspection by bring-
ing the tester into contact with the jumper wires and
parts.
Parts exchange for the
P-Board
(1) When parts are to be exchanged, first remove the screws
(3 screws: to Refer to Fig. 4) fixing the print holder.
(2) Next, remove the screws (3 screws: to :Refer to
Fig.4)
(3) Remove the P-Board from the D-Board (3 connectors: P1
to P3: Refer to Fig. 4), and then exchange the parts.
*
Pay attention to the earthing of HOT and COLD parts and
perform inspection.
perform inspection.
(1) Remove the rear panel fixing screw (6 screws: to )
and the fixing tabs (2 place). (Refer to Fig. 5)
(2) Tilt the H-Module to the front and pull it out, and then
exchange the H-Module.
Fig.4
Inspection of the P-Board
Fig.5
H-Module exchange
1
6
2
5
4
3
Front
Top View
Rear View
P-Board
Print Holder
2
1
3
5
6
4
Tab
H-Module
Rear Bracket
1
3
4
6
!
1
6
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