Yamaha XP1000 Service Manual page 15

11. PA Unit (Time Required: about 3 min)
11-1 Remove the top cover. (See procedure 1.)
11-2 Remove the six (6) screws marked [40]. The PA unit
can then be removed. (Photo. 10)
* Six (6) washers are fitted over the screws [40] between
the main chassis and PA unit. Take care not to loose
these washers in removal.
12. PAL Circuit Board (Time Required: about 10 min)
12-1 Remove the top cover. (See procedure 1.)
12-2 Remove the PA unit. (See procedure 6.)
12-3 Remove the six (6) screws marked [P40] and the
screws fixing the diode stack, diode, positive thermistor,
transistor, FET and pair transistor marked [P70] (26
screws for XP1000, 30 screws for XP2500, 36 screws
for XP3500). The PAL circuit board can then be removed.
(Fig. 2, 6)
[40]
[40]: Bind Head Tapping Screw-B 4.0x8 MFZN2B3 (WE962000)
Left side view
Top view
Right side view
[P70]
[P40]
[P70]
[P40]: Bind Head Tapping Screw-S 3.0x6 MFZN2W3 (WE877900)
[P70]: Bind Head Tapping Screw-B 3.0x12 MFZN2W3 (WE877700)
11-1.
11-2. [40]
[40]
12-1.
12-2.
12-3. [P40]
(Photo. 10)
[P70]
[P70]
(Fig. 6)
XP1000/XP2500/XP3500
1
6
1
6
6
[P70]
PAL
36
15