Pioneer PORTATONE PSR-280, Руководство по обслуживанию

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PN(VR) LCD
PN(PNL)
PN(PNC)
PN(PNR)
[250D] [L50]
[250H] [250E]
[250E]
[250E] [250F] [250F]
[250H]
[250G]
[250H]
[250G]
[250G]
[250H]
LCD unit
[250]: Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280) [L50]: Bind Head Tapping Screw-P 3.0 x 8 MFZN2Y (EP600280)
(Fig. 3)
PSR-280/PSR-282
10
3. Speakers
3-1 Remove the lower case assembly. (See Procedure 1.)
3-2 Woofer:
Remove the four (4) screws marked [280]. The right and
left speakers (woofer) can then be removed. (Fig. 2)
3-3 Tweeter:
Remove the two (2) screws marked [250C]. The right and
left speakers (tweeter) can then be removed. (Fig. 2)
4. PN(VR), PN(PNL) Circuit Boards
4-1 Remove the lower case assembly. (See Procedure 1.)
4-2 Remove the AM circuit board. (See Procedure 2.)
4-3 PN(VR) Circuit Board:
Remove the three (3) screws marked [250D]. The PN(VR)
circuit board can then be removed. (Fig. 3)
4-4 PN(PNL) Circuit Board:
Remove the six (6) screws marked [250E]. The PN(PNL)
circuit board can then be removed. (Fig. 3)
5. PN(PNC), PN(PNR), LCD Circuit Boards
5-1 Remove the lower case assembly. (See Procedure 1.)
5-2 Remove the DM circuit board. (See Procedure 2.)
5-3 Remove the AM circuit board. (See Procedure 2.)
5-4 PN(PNC) Circuit Board:
Remove the three (3) screws marked [250F]. The PN(PNC)
circuit board can then be removed. (Fig. 3)
5-5 PN(PNR) Circuit Board:
Remove the eight (8) screws marked [250G]. The PN(PNR)
circuit board can then be removed. (Fig. 3)
5-6 LCD Circuit Board:
Remove the four (4) screws marked [250H]. The LCD unit
can then be removed. (Fig. 3)
Remove the eight (8) screws marked [L50]. The LCD circuit
board can then be removed. (Fig. 3)
* When re-install the LCD, place it so that the small protrusion
on the LCD faces the inside on the right. (Fig. 4)
6. Disassembling the keyboard assembly
6-1 Remove the keyboard assembly. (See Procedure 2.)
6-2 Remove the two (2) screws marked [30]. The MKS3 circuit
board can then be removed. (Fig. 2)
6-3 Remove the MK circuit board while pressing the fifteen
(15) hooks A inward, and then remove the rubber contact.
(Fig. 5)
6-4 Remove the twenty-one (21) screws marked [140], then
remove the black keys from the lower notes. Afterwards,
remove the white keys DFA and C' and then remove the
white keys CEGB from the higher notes. At this time, lift
the keys from the front and slide them towards you.The
keys can then be removed from the assembly. (Fig. 6)
Conductor side
• LCD unit
Rubber connector
Rubber connector
(Fig. 4)