GBC StreamPunch Ultra Service Manual page 37

RTP 1.4 Operator Panel Does Not Show Text
Use this RTP when the LCD Display does not show text but illuminates.
1. Unplug the machine and plug it back in after 20 seconds
The Operator Interface illuminates.
Yes- Normal operation
2. Check that LCD Cable 7715523 (flat ribbon cable) is connected at
Connector J36 on the Main Control Board (see Section 7 Wiring).
Cable 7715523 is connected at Connector J36.
Yes- Go to Step 3
3. Check that LCD Cable 7715523 is connected at the LCD Panel on
the rear of the User Interface (See Section 7 Wiring)
Cable 7715523 is connected at the LCD Panel.
Yes- Go to Step 4
4. Upload firmware: Do GP 6.1.12
The Operator Interface shows text.
Yes- Return to normal operation
5. Check the condition of LCD Cable 7715523 (Section 7- Wiring)
LCD Cable 7715523 is okay.
Yes- Go to Step 6
6. Replace the LCD Board on the rear of the User Interface (ARP 1.12)
This clears the fault
Yes- Normal operation
7. Check LCD for normal operation.
The Operator Interface shows text.
Yes-
Normal operation
No- Replace the Main Control Board (ARP 5.1).
GBC StreamPunch Ultra/Ultra MP
No- Go to Step 2
No- Connect Cable 7715523
No- Connect Cable 7715523
No- Go to Step 5
No- Replace LCD Cable 7715523.
No- Go to Step 8
11-05-2018
2-20
RTPS