Kristel 1428-30k series, Service Manual

Page: 7 / 43

MAIN PCB, 1428-30K
pg.5A
1428-30k series
Video power connector B503
Sync.connector
Hphase & Vsize - B601
Hsize, B302 Vcenter, B303
Yoke, B602A
Brightness, B902
Blk,GND,ABL,G1- B901
AC input - B501
VR901-subBRITE
VR501, B+ adj.
VR301, Pin
VR304, Gain
Degaussing coil con.
T602, FBT
-Tunning cap. C611
-Damping diode, D602
-Horiz.drive trafo, T601
-Horiz.Output, Q602
-Driver Resistor, R615
VR602, X-Ray
VR308, sub-H-size
VR604, Raster cent.
VR601, H-Hold
VR310, V-Lin.
LED, power indic.
⇒
POWER SUPPLY
Bridge Rectifier
Q501, MOSFET
L501, FCC choke
SYNC.SECTION
VERT. SEC.
L603, Linearity coil
KRISTEL 100-100-1428-30K PCB rev.A
FIG. 1A
FIG. 2A
NOTE:
for AutoBias optional configuration,
B902
is NOT used, and
B901
is like in fig.2A
B902
AUTOBIAS FORMAT
from left to right:
-white = VR
-blue = HR
-green = GP
-yellow = G1DRV
-orange = G1
-not used
-black = GND4