Sony HDW-F500 Maintenance Manual page 152

4-3. Maintenance Menu
4-3-3. DT/SAT SYSTEM Check
[F2] (SG LOOP) Key :
Performs checking to the feedback loop of the strain
gauge.
(1) Press [F2] key from DT/SAT CHECK menu to enter
to SG LOOP menu.
(2) Press and keys. Checking to SG LOOP starts.
(3) When the checking normally completed, message
CHECK COMPLETE appears on the display.
If message #CHECK INCOMPLETE# appears on the
display, check the following:
"A/B ch" indicated : Optimum bias value of the strain
gauge amplifier circuit for A or B ch.
is out of specification, or the value of
strain gauge being distortion-erased
is out of specification.
"C/D ch" indicated : Optimum bias value of the strain
gauge amplifier circuit for C or D ch.
is out of specification, or the value of
strain gauge being distortion-erased
is out of specification.
• Check the strain gauge signal detect system
(advance head, DR-205A/SS-88/MB-863/
HN boards, slip ring, wire harness and the like).
• Check the DT driver system (SS-88/DT-34C/
DR-205A/MB-863/HN boards, slip ring,
advance head, wire harness and the like).
4-36
CH.COND
D T
D R I V E R
D T/SA T CH ECK
S G
L O O P
S G LO OP
PU SH T HE U P/DO WN CU RSOR BUT TON
W O B -
B L I N G
F U N C
M O D E
DT/S AT C HK
TCR 0:0 0:0 0: 00
E X I T
HDW-F500E MMP1