Service manual

Wells-Garnder Color Vector Monitor Guide
Page 68 of 73
DEFLECTION BOARD (cont.)
The following Deflection board parts should also be replaced, and are not included in the Zanen
kit, and are not replaced by the LV2000. I would recommend installing these upgraded parts.
These will bring your deflection board to the last revision created by Wells-Gardner.
NON-Zanen Deflection PCB Upgrade Parts
Location Part Number Upgrade Notes
Q604 NTE49 transistor Yes Replaces MPSU07 (NTE188)
Q704 NTE49 transistor Yes Replaces MPSU07 (NTE188)
R106 22 ohm 3 watt resistor Yes Replaces 2 watt versions
R701 1.3k ohm 5 watt resistor Yes Replaces 1/4 watt versions
R812* 5.6k ohm ¼ watt resistor Yes Replaces 10k ohm versions
R813* 5.6k ohm ¼ watt resistor Yes Replaces 10k ohm versions
C100 4700 uF 50v radial capacitor
Not an upgrade, but a good idea to
replace
C101 4700 uF 50v radial capacitor
Not an upgrade, but a good idea to
replace
C800 1 uF 50v radial capacitor Yes Replaces 0.47 uF 35v cap
C801 1 uF 50v radial capacitor Yes Replaces 0.47 uF 35v cap
C802 1 uF 50v radial capacitor Yes Replaces 0.47 uF 35v cap
C803 1 uF 50v radial capacitor Yes Replaces 0.47 uF 35v cap
D100 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116)
D101 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116)
D102 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116)
D103 1N4007 (NTE125) diode Yes Replaces 5A2 (1N4005/NTE116)
F100 6.25 amp Slo-Blo Fuse Yes Replaces 5 amp fuse
F101 6.25 amp Slo-Blo Fuse Yes Replaces 5 amp fuse
* these parts may be optional for your monitor.
Deflection Board Notes.
R812 and R813 are only used in the 2nd (P327) and 3rd (P339) revisions of the Deflection board.
If you have the 1st revision (P314), these parts will not be present.
Although not included in the Zanen kit, you should check the Deflection board capacitors at
C100 and C101 (both are 4700 uF, 50v). Also test the 5A2 (1N4005 or NTE116) rectifier diodes
at D100, D101, D102, D103. These rectifiers are 600v, 1-amp components. You can upgrade
them to 5A8 (1N4007 or NTE125) diodes that spec at 1,000v, 2.5-amps.