Bose 1600-VI Service Manual download pdf (Page 23)

23

DISASSEMBLY/ASSEMBLY PROCEDURES

6.2 Carefully line up the holes of the

regulator board with the nylon standoffs

mounted on the power supply board.

Snap three corners of the board onto each

nylon standoff.

6.3 Replace the transformer (4) using

procedure 12. Refer to Figures 7 and16 for

correct wire locations.

6.4 Connect the cables from the line cord

(31) (for 240V, line cord and ground) to the

line filters terminals (10).

6.5 Connect the cables to power supply

board (7) terminals WL1-WL3 and WL5-

WL7. These terminals are directly over the

regulator board.

6.6 Replace the cover (1) using

procedure 2.

Note: Refer to Figures 5 and 6 for the

following procedures.

7. Power or Sequence Switch Removal

7.1 Remove the cover (1) using

procedure 1.

7.2 Unsolder the three tabs that secure the

power switch board (9) to the switch.

7.3 Push the switch through the chassis (2)

front panel.

8. Power or Sequence Switch

Replacement

8.1 Push the switch into the chassis (2)

front panel.

8.2 Solder the power switch board (9) to

the switch terminals. For 100V and 120V

units, make sure the LED is lined up with

the panel hole labeled "Standby". For 240V

units, make sure the board's LED is aligned

underneath the "ON" position icon.

8.3 Replace the cover (1) using

procedure 2.

4.3 Connect the power supply cables back

to transformer (4) terminals 6-11.

4.4 Replace the cover (1) using

procedure 2.

Note: Refer to Figures 3, 4 and 6 for the

following procedures.

5. Regulator Board Removal

Note: The regulator board is not used in

the 1600VI amplifier.

5.1 Remove the cover (1) using

procedure 1.

5.2 Note the wiring configuration and

disconnect cables WL1-WL3 and WL5-WL7

from the power supply board (7) terminals.

This will allow easier access to the regula-

tor board (8). These terminals are located

directly over the regulator board in the

1800VI.

5.3 Disconnect the cables from the

terminals of the line filter (10) that are

next to the regulator board.

5.4 Remove the transformer (4) using

procedure 11. This will allow easier access

to the standoffs that secure the regulator to

the power supply board.

5.5 Unsnap the regulator board from the

nylon standoffs mounted on the power

supply board. This will also disengage the

regulator board from the power supply

J1 connector.

6. Regulator Board Replacement

6.1 Line up and insert the pins of the

regulator board (8) J1 connector (solder

side) into the power supply (7)

J1 connector.

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