Sony KDE50XBR950 Service Manual page 37

Scan Relay PKG
High Voltage PKG
NEGA
POSI
(Cautions) Even if it removes the connector during High voltage PKG and Scan relay
PKG, when between NEGA-POSI by the side of Scan relay PKG is short, it is failure
of Scan IC on the Scan relay PKG.
Tester Check 7
Scan Relay PKG (R-T)
Check Point
Between NEGA and POSI
35
Scan Relay PKG (R-B)
High Voltage PKG
POSI
NEGA
Judgment
OK : More than K ohms
NG : Short