Harman Kardon Citation II - Page 12

10
ELECTROLYTIC BRACKET ASSEMBLY
Refer to Pictorial Diagram #1.
Orient bracket so that the U-shaped notches are downward with the larger U-shaped notch to the right.
Check
( )
( )
Mount selenium rectifier (SR1), using #6-32 x
¾
˝ screw through top of bracket. Slip rectifier on
screw, negative lug first and engage locating tab in the hole provided on the electrolytic bracke t. Pos-
itive terminal may be identified by red band or plus symbol. Use #6-32 hardware, lockwasher under
nut.
( )
( )
Mount small capacitor-insulating wafer as shown at (E). Use #6-32 x
⅜
˝ screws, lockwasher under
nut. (Wafer is mounted on top of bracket.) Note orientation.
( )
( )
Mount large capacitor-insulating wafer and lug strip T6 in the same manner at (A).
( )
( )
Mount silicon diode holder (T5). Insert screws through holder and bracket. Use #6-32 x
⅜
˝ screws,
lockwasher under nut.
( )
( )
Mount 20-20 mfd 150 wv cardboard-insulated electrolytic capacitor at (E). Note orientation. Twist
mounting tabs
¼
turn after insertion, to lock in place.
( )
( )
Mount 50-50 mfd 450 wv electrolytic capacitor at (D) in the same manner, noting orientation. Twist
mounting tabs
¼
turn.
( )
( )
Mount single 40 mfd 525 wv electrolytic capacitor at (C) in the same manner, noting orientation.
Twist mounting tabs
¼
turn.
( )
( )
Mount single 200 mfd 250 wv electrolytic capacitor at (B). Note orientation. Twist tabs
¼
turn.
( )
( )
Mount single 200 mfd 250 wv electrolytic capacitor with cardboard insulating sleeve at (A). Note
orientation. Twist tabs
¼
turn.
( )
( )
Insert the four silicon diodes into the clips on the holder (T5) as shown in the pictorial. It is
imperative that the silicon diodes are installed in the manner shown in Pictorial 1. Note that the large
disks on SD1 and SD2 are at the right and the large disks on SD3 and SD4 are at the left.
( )
( )
Hook cathode lead from SD1 with, anode lead from SD2 (S). Cut off excess wire. Fragile! Use
caution handling leads.
( )
( )
Hook anode lead from SD3 with cathode lead SD4 (S). Cut off excess wire.
( )
( )
Connect free end (cathode) of SD2 to lug #2 of holder (T5) (NS).
( )
( )
Connect free ends of SDI and SD3 to lug #1 of holder (T5) (NS).
( )
( )
Connect free end (anode) of SD4 to terminal 2 of lug strip T6 (NS).
( )
( )
Slip a piece of insulating sleeving over each end of a .01 MFD/1400 V disc capacitor and connect one
end to T5 lug #1 (NS) and the other end to T6 lug #2 (NS).
( )
( )
Connect a 2˝ HI red wire from T5-2 (S) to Al (NS).
( )
( )
Connect a 2˝ HI red wire from A2 (S) to B1 (S).
( )
( )
Connect a 3
¾
˝ HI black wire from B2 (S) to T6-2 (S).
( )
( )
Connect a 2
½
˝ gray wire from E3 (NS) to the negative lug of SRI (S).
( )
( )
Connect a 2
½
˝ black wire from E2 (NS) to D3 (S).
( )
( )
Solder D3 to electrolytic bracket (this is to insure proper grounding of the electrolytic).
( )
( )
Connect a 1.8K
½
watt 10% resistor (brown-gray-red-silver) between E1 (NS) and E2 (S).
( )
( )
Solder solid twist tab of 40 mfd 525 wv electrolytic capacitor (C) to the electrolytic bracket.
( )
( )
Similarly solder twist tab of 200 mfd 250 wv electrolytic capacitor at (B) to the electrolytic bracket.
ELECTROLYTIC BRACKET SUBASSEMBLY COMPLETED. Set aside for later use.