Philips 170B4BB, Service Manual

Page: 22 / 103

Step 7 : Press "/" on keyboard, bring up Fig. 13.
Step 8 : Disconnect Mains cord from Monitor (B),
10 seconds at least.
Now, Monitor (B) can be used for display again.
After finished,entering factory mode to check CPU version
as shown in Fig. 14.
Troubleshooting :
Monitor (B) : Monitor is on (LED is green.), or off,
but no display (black)
1. Make sure to disconnect the mains cord at Monitor (B),
then connect it again.
2. EEPROM size may be not correct.
(Press "AUTO" and "OK" and "POWER KNOB" at the same time
to access Factory mode.)
ISP CABLE for CPU GM5126BC (Continued)
In System Program (ISP) will be executed to upgrade the firmware
to Monitor (B).
When finished, Bring up Fig. 11=>12 on the screen of Monitor (A).
Step 6 : Disconnect mains cord between Electrical outlet (power source) and
Monitor (B) at this moment as shown in Fig. 9.
Step 6-1 : reconnect mains cord between Electrical outlet (power source) and
Monitor (B) again as shown in Fig. 10.
PC
Rear view of 170B4&S4
To
printer
port
(L
TP1)
To
video
card
Video cable
Connect to
Mains cord
Monitor (A)
Monitor (B)
ISP cable
D-Sub
25 pins
Connect to Mains cord
at this moment. again
------------------------------->
PC
Rear view of 170B4&S4
To
printer
port
(L
TP1)
To
video
card
Video cable
Connect to
Mains cord
Monitor (A)
Monitor (B)
ISP cable
D-Sub
25 pins
Fig. 9
Fig. 13
Fig. 14
Fig. 10
Fig. 11
Fig. 12
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22
170B4&S4
HUDSON 3 170B4 T151 20021214 HUDSON 3 170B4 T151 20021214