Panasonic CT-34WX50 Service Manual ▷ View online
- 8 -
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
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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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Exchange method for CC-Module, U-Moudle, AG-Module, DG-Module and Q-Module
*Remove the H-Module in advance. (Refer to the preceding item)
(1) Remove the screw (1 screw: )
(2) Remove the lead wire.
(3) Remove the tab.
(4) Remove the module plate.
(5) Pull out each module.
(6) Exchange module.
1
Module Plate
U-Module
AG-Module
Tab
CC-Module
DD-Module
DG-Module
Lead Wire
1
U-Module
CC-Module
DG-Module
AG-Module
Q-Module
Fig. 7 Exchange of each module-2
$0
Fig. 6 Exchange of each module-1
(View from above)
(View from above)
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