owing to the delicate and static-sensitive nature of the camera module this is best left alone. Changing other settings will cause malfunction or less than optimum results.
• In case of odd symptoms, first check the output voltage of the switching power supply modules. These should be 12 and 24 volts DC, ±5%. The voltage should change little no matter what settings are made to the operating controls. The 24 volt supply may sag momentarily while the drive motor starts running.
• If dust accumulates on the optics it should be removed with a clean camel's hair brush or air blower. Fingerprints must be removed immediately with lens cleaner and lens tissue, following the instructions included with them. There should be no need to open the light source module.

Suggested Sources of Supplies

Regular-8 and Super-8 400' reels in boxes of 200 pieces:
Tayloreel Corp. www.tayloreel.com 770-503-1612

Super-8 400' reels (8mm SMD component reels 7")  in boxes of 100 pieces, Item VP-A708-08: Media Distributors, formerly Plastic Reel Corp (PRC) 800-929-1637 or (818) 980-9916 Attn: Mario in West, 800-772-4748 in East

White boxes for 7" diameter 1/4" audio tape reels in boxes of 180 pieces:
Protape Northwest 800-331-6107 and probably other suppliers

Regular-8mm Kodak White Movie Leader in 50' roll: # 163 5002
Super-8 Kodak White Movie Leader in 50' roll: # 191 0116
Super-8 Kodak White Movie Leader in dispenser box of 1000' (more economical): # 882 7362
Kodak Professional Film Cement 16 oz: #195 6176, 1 gallon: #195 6150, both plus $20 hazardous shipping fee.
Kodak ordering toll-free number: 1-800-621-3456 (1-800-621-FILM)

Kodak Presstapes are now sold by Urbanski Film, (708) 460-9082 http://www.presstapes.com

Other suppliers may have editing equipment and sometimes have regular-8 leader. (Note: regular-8 leader in bulk is sometimes supplied in the double-8 width, and needs slitting down the middle to 8mm for use. Some kinds of leader cannot be cement spliced. Ask before buying. Slitters can be imported from Olex's web site at http://www.geocities.com/russiancamera/s8-equipm/s8-equipment.htm in the Ukraine.):

Christy's (equipment, leader, reels in small quantity) 800-468-6391
Neumade (manufacturer of rewinds, leader) 203-270-1100
MPE (equipment, leader, reels in small quantity) 212-245-0969
Starex (leader) 201-997-1555
FCA (leader) 818-845-7651
ECCO makes a film cleaning device that is mounted between a pair of rewinds. These are sold by several dealers. Film cleaning fluid is made by several companies or else you can use Freon TF, 99+% isopropyl alcohol, etc. with a small amount of wax dissolved in it for lubrication.