Sony CCD-TRV312 Operating Instructions (primary manual), Service Manual, Page: 186 / 212

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3-5. SERVO SYSTEM ADJUSTMENTS
1. SYNC level and BURST level adjustments
Purpose : Adjust the sync and burst level of the camera
output to the specified values.
Adjustment error :
The playback machine can lose lock of the
servo systems if the sync level is too low. The
playback color will become too thick if the
burst level is low.
Mode Camera record
Subject Color bar chart: standard picture
frame
Measurement point VIDEO output terminal
(terminated in 75
Ω
)
Measuring equipment Oscilloscope
Adjustment page F
Adjustment address 3E (SYNC LEVEL)
3F (BURST LEVEL)
Specifications SYNC LEVEL :
A=300
±
10mV (PAL)
A=286
±
10mV (NTSC)
BURST LEVEL :
B=300
±
6mV (PAL)
B=286
±
6mV (NTSC)
Adjustment procedure:
Order Page Address Data Procedure
1 6 00 01 After setting the data, press the PAUSE button. (Preparation)
2 6 01 03 After setting the data, press the PAUSE button.
3 F 3E Change the data using the PLAY and STOP buttons until the SYNC LEVEL (A)
satisfies the specification.
4 Press the PAUSE button.
5 F 3F Change the data using the PLAY and STOP buttons until the BURST LEVEL (B)
satisfies the specification.
6 Press the PAUSE button.
7 6 01 00 After setting the data, press the PAUSE button.
8 6 00 00 After setting the data, press the PAUSE button. (End)
B
H
A
(Burst level)
(Sync level)