16 — Power Supply Unit
16–6
CX20/CX30/CX34 Service Manual
9
Disconnect 4–pole mains supply from SK1 on power supply PCB.
10
Disconnect 16–pole power outlet harness from PL1 on power supply
PCB.
11
Remove two hexagonal, stand–off pillars from rear corners of power
supply PCB.
12
Remove power supply PCB by easing out (towards back of unit) from
under the three securing tabs. Disassembly is complete.
13
Insert power supply PCB and engage two cut–outs in front edge of
power supply PCB with two spigots at unit chassis.
14
Fit two hexagonal, stand–off pillars at rear corners of power supply
PCB.
15
Connect 16–pole power outlet harness to PL1 on power supply PCB.
16
Connect 4–pole mains supply to SK1 on power supply PCB.
17
Taking care not to bend either of two upright resistors near to rear, left
edge of power supply PCB and so cause either of them to contact
shroud when fitted, fit shroud covering power supply PCB using two
sets of Posidrive screws and shakeproof washers. Check that
grommets around wire harnesses are correctly located in slots of
shroud.
18
Place washer on pillar (above shroud).
19
Fit main PCB (refer to Section 11).
20
Fit case (refer to Section 3).
16.2.2
Gaining access to the power supply unit (CX34)
Refer to Figure 16.1.
To gain access to the power supply unit on the CX34 for test, to change fuses or
to change the power supply unit, proceed as follows:
1
Switch off machine and isolate it from the mains power supply.
2
Remove front housing (refer to Section 3).
3
Remove power supply unit shroud by removing the two screws and
shakeproof washers from the top and carefully lift off. Remove cable
ties as necessary.
4
Identify locations of FS1 (1A) and FS2 (4A).
5
To replace a fuse see Section 16.2.3.
6
If complete removal of power supply is required, proceed as follows,
otherwise proceed to Step 14.
7
Disconnect 4–pole mains supply from SK1 on power supply PCB.
8
Disconnect 16–pole power outlet harness from PL1 on power supply
PCB.
Содержание CX20 SERIES
Страница 133: ...11 Main PCB 11 4 CX20 CX30 CX34 Service Manual Figure 11 1 Main PCB Electrical Connections See Tables 11 1 and 11 2 ...
Страница 137: ...11 Main PCB 11 8 CX20 CX30 CX34 Service Manual Figure 11 2 Main PCB DIL Switches and Potentiometers ...
Страница 246: ...25 Appendices 25 9 CX20 CX30 CX34 Service Manual 1 Voids printed on receipt 2 Voids not printed on receipt ...
Страница 258: ...PL 1 CX20 CX30 CX34 Service Manual Section PL Parts List ...
Страница 284: ......
Страница 287: ......
Страница 317: ...Addendum A Phase 1 4 and CX34 Parts List A 30 CX20 CX30 CX34 Addendum A ...
Страница 318: ......
Страница 321: ......
Страница 323: ...Contents B 2 Addendum B ...
Страница 343: ...Addendum B Phase 1 5 1 5 3 and New Main PCB B 22 Addendum B ...
Страница 344: ......
Страница 347: ......
Страница 351: ...PL Parts List Devlin Keyboard C 6 Addendum C ...
Страница 352: ......