Hal Communications CWR6850, Instruction Manual

Page: 53 / 64

CHAPTER 6 PAGE 53
TONE
SHIFT
SWITCH
TEST
POINT
JP-1
ADJ FOR
MAXIMUM
HIGH any
170
425
850
TP-3
TP-4
TP-4
TP-4 OPEN
SHORT
SHORT
SHORT
VR-7
VR-1
VR-2
VR-3
LOW any
170
425
850
TP-3
TP-4
TP-4
TP-4 OPEN
SHORT
SHORT
SHORT
VR-8
VR-4
VR-5
VR-6
VR-9 and VR-10 are used to adjust the amplitude balance between the mark and space receive
channels. They should NOT require re-adjustment!
2. OTHER USER ADJUSTMENTS:
The only remaining user-adjustable controls are those in the CRT monitor sub-assembly. The func-
tions of these controls are clearly marked on the circuit board and you may adjust them if re-
quired. The available controls are:
MARKING LOCATION FUNCTION
V-LIN
V-HEIGHT
V-HOLD
VIDEO CENTER
SUB-BRIGHT
FOCUS Right side
Right side
Right side
Right side
Right side
Right side Adjust vertical linearity
Adjust vertical height
Adjust vertical oscillator frequency
Adjusts horizontal centering
Adjust brightness of CRT
Adjust focus of display
These are the ONLY user-adjustable controls in the CWR6850. Please do attempt re-adjustment of
any other controls or use of any jumpers not mentioned in the above discussion. If your CWR6850
still exhibits problems or cannot be adjusted as explained, please contact your dealer or the fac-
tory for more information.