Forward and Reverse. The count is remembered without need for batteries when the unit is turned off. A time interval for servicing the drive motor and mechanism has not yet been established.

Sound Lamp replacement: Turn the power off. Loosen the thumb screw holding the lamp cover in place. Pull the cover straight out and note the alignment pins. Swing the lamp lock lever counter-clockwise to release the lamp, and rotate the lamp so it will lift off.
Scrape the center contact of the new lamp lightly with a screwdriver or knife to remove any oxidation. Clean any dust or fingerprints off the glass bulb. Place the lamp over the guide pins, which are unevenly spaced so the lamp will only fit one way. Turn it clockwise to the stop. Rotate the lock lever clockwise to clamp the lamp in position. Replace cover.
The TVT-16 uses a type BAK (which ANSI code fully specifies a 4 volt .75 amp T-5 single contact prefocus C-6 filament Krypton gas filled lamp.) It is also possible to use the type BRS which is almost the same but without the gas filling so it will not last as long. These are the same as used in most Bell & Howell 16mm Filmosound projectors.

Service adjustments:
• After long use, the white balance of the LED and camera module could change. To reset the white balance, turn to "Still" and "Auto" without film but with an 0.7ND neutral filter in the light path and observe the output signal with an oscilloscope or waveform monitor. Adjust the R and B (red and blue) pots in the camera module, for minimum chroma carrier, preferably from the S-video "C" output. Be very careful with the tiny pots.as they are easily damaged or torn loose from the circuit board.
• Automatic exposure setting should be quite stable. Current optimum factory setting is .90 volts p-p with no film in the gate. Average film will then reach about 100 IRE while "all white" overexposed film will peak around 85 IRE. The "Average" setting is for .65 volts with no film. Voltage readings are peak to peak, and will be double if measuring an unterminated output.
• In case of replacing the timing belt, it will be necessary to reset the "Shutter Phase" selection jumpers. While running film Forward, try changing the jumper positions one at a time in sequence. Pick the phase number that gives the best safety margin against the jitter and ghosting of other positions. The bottom set of jumper pins is for Silent speed, the middle is for Sound speed, and the top set is reserved.
• Focus, centering, magnification and all camera module settings are factory set and locked in place, and should not be disturbed. Camera setup switch settings for NTSC are normally: 1, 2, 3, 4 on and the rest off.
• In case of odd symptoms, first check the output voltage of the switching power supply modules. These should be +5, +12, -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 dismantle the light source module.
• Sound gain adjustment: With the sound lamp on, and no film threaded, adjust the pot on the Preamp Board for + 0.5 volts at the center terminal of the pot. From a normal track this will give a Balanced output of 8.8 volts p-p and an Unbalanced output of 2 volts p-p, maximum signal. These correspond to levels of +4 dBu and -10 dBv.

Suggested Sources of Supplies

16mm 400' reels in boxes of  128 pieces, also large reels to 2300' in quantity only:
Tayloreel Corp. www.tayloreel.com 770-503-1612

Kodak White Movie Leader in 1000' rolls on core: Double perforated # 800 1901, Single perforated # 821 0445
(For the above you might want to buy a 1200' split reel or two for safe handling.)
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

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. See the previous Preparation section.

Supplementary instructions for 3CCD camera version is here.