4
Disconnect
Mains Plug-In
- Prepare
Power supply
like described in §
"Running SMPS in Stand
Alone Condition"
MAIN POWER SUPPLY CHECK
safety Circuit
active via TP158
No
Safety Circuit
(pin 7 IP0170 < 0.5V)
active via TP197
No
safety Circuit
(pin 7 IP170 < 0.5v)
still activated
No
+6V < 5V
No
+5V ~ 5V
Oui
+8V ~ 8V
Yes
LED : orange
Acquisition
Mode
OK
Contrôler la connexion
Yes
CRT board
(load missing)
check CRT board
Check for
Yes
short circuit
on +/-UA line
Check for any
short circuit on
Yes
+20V, +10V, +8V
and +6V
(overload USYS)
Check TP221
Yes
(+6V regulation
TP184/185)
No
Check regulation
TP151/152
(DP152)
No
Check IP220
TV : OFF
disconnected of MAINS:
Remove any added load,
connect BP005,BL111,
remove connection from
+20V to pin 21 BP005
1
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