JVC UX-A4 - Operation Key Switch P.C. Board and Front Panel; Power Amplifier Power Supply Assy

UX-A4 B/E/G/GI/EN UX-A4 B/E/G/GI/EN |
© Operation Key Switch PC. Board and Front Panel
(Fig. 7-2, 4)
1. Remove the two screws @ retaining the cassette holder
bracket from the lower side of the front panel.
2. Insert minus screw drivers into the two right and left
engagement points (a, b) of the cassette door and cas-
Cassatie holder bracket sette holder bracket from inside the front panel, and dis-
Cassette door engage the above door and bracket.
3. Remove the door spring and dismount the cassette door
from the front panel.
. Draw out the caseete holder bracket from the front cover.
5. Draw out the headphone jack P.C. board from the front
panei.
6. Remove the three screws a? retaining the operation key
switch PC. board, and draw out the PC. board.
Cassette door
pf
B Power Amplifier Power Supply Ass’y
© Power Supply Transformer (Fig. 7-2, 5~ 7)
1. Remove the four screws ( x 2 and €2 XxX 2) retain-
ing the bottom cover and power supply unit.
2. Remove the four screws ( 62) x 2 and 6) xX 2) retain-
ing the heat sink from the transformer bracket and
dismount the power amplifier P.C. board.
3. Remove the one screw retaining the fuse P.C. board
from the transformer bracket.
4. Remove the bushing retaining the power supply cord from
the transformer bracket.
5. From the connector CN955 on the fuse PC. board, remove
the #2PIN connector outgoing from the power supply
transformer.
6. Dismount the connector CN952 on the fuse P.C. board
and connector CN951 on the transformer PC. board.
7. Remove the soldering connecting the power supply trans-
former from the soldered surface of the transformer PC.
board and dismount the PC. board.
8. Remove the four screws 64) retaining the power supply
transformer from the transformer bracket.
Fuse P.C.board
Power trans
65 c Power trans P.C.board
Fig.
7-5
ord
(No. 1890) 28