Tektronix H600 RFHawk, Service Manual

Page: 73 / 109

Troubleshooting
Display Image Inverted (Rotated 180°)
Disconnect and then reconnect the LCD cable connectors. To open connector
J660, insert your thumbnail beneath the dark brown part (hinge) and the cable.
Carefully lift up the hinged brown part to release the cable. Reseat the cable and
close the hinge. J660 pin 1 must 3.3 VDC for correct display orientation.
Touch Screen Does Not Operate
Try the following:
Disconnect and then reconnect the touch screen cable connectors.
J4 pins 1-8: verify that pins 1, 2, 3, and 4 of connector J1 are at +3 VDC
when the touch panel is not pressed. Verify that pins 1 through 8 toggle their
value when the touch panel is pressed.
If these do not resolve the problem, replace the touch screen panel.
Signal and Connector Information
The following tables list pin, signal name, and signal information for the main
platform connectors.
Table 4-3: PCMCIA interface connectors JR420, JR520
Pin Signal name
Signal
information
Pin Signal name
Signal
information
1 GND 35 GND
2 D3 36 -CD1
3 D4 37 D11
4 D5 38 D12
5
D6 39 D13
6 D7 40 D14
7 -CEL 41 D15
8 A10 42 -CEH
9 -OE 43 REF/-VSI
10 A11 44 -IORD
11 A9 45 -IOWR
12 A8 46 A17
13 A13 47 A18
14 A14 48 A19
15 -WE 49 A20
16 -IREQ/READY 50 A21
H600 & SA2600 Service Manual 4–15