Specifications

8-4
8.2.2 Dynamic
1. Thread a loop of Cat. No. 1010 Digital Soundhead alignment test film through
the projector, analog soundhead, and digital soundhead. Run the projector.
2. From the Current Format menu, select Format 10, Dolby Digital.
3. Press MENU, Alignment (SK1), Reversion Mode (SK4), then rotate the front
panel knob to display Digital Only. Press OK. This forces the CP500 to read
the digital track on the Cat. No. 1010 continuously. Press MENU, then
Alignment (SK2) to place the CP500 into the System Alignment screen.
4. Monitor audio from the center channel output of the CP500 (digital track) while
simultaneously monitoring audio from the analog track. Headphones may be
connected to the test points as shown below for monitoring both signals.
DIGITAL TRACK
OUTPUT FROM
CAT. NO. 682
RIGHT SIGNAL PRESENT
OPTICAL SIGNAL RIGHT
OPTICAL SIGNAL LEFT
CAT. NO. 661
PROJ 1 SELECT
LEFT SIGNAL PRESENT
GND
PROJ 2 SELECT
CENTER
BYPASS
5. Set the CP500 screen to Digital Soundhead Delay as described above and adjust the
number of perfs for minimum delay between the analog and digital track.
6. RESET THE REVERSION MODE TO NORMAL.
8.2.3 Typical Settings
The table below shows representative settings for a variety of common projectors in use:
Dolby Digital Readers:
Projector Delay Projector Delay
Ballantyne 35mm 247 Christie 250
Century 35mm (SA) 245 Norelco/ Kinoton
Century 35/70 (JJ) 309 AAII (DP70) 283
Cinemaccanica V5 252 Simplex 35mm (XL) 242
Cinemaccanica V8 260 Simplex 35/70 298
Built-in Digital Readers:
Projector Delay Projector Delay
Century w/ Component Cinemaccanica V5 28
Engineering or Kelmar 20 Simplex w/ Component
Christie 26 Engineering or Kelmar 26