Philips SCOPEMETER PM93 Service Manual page 150

CORRECTIVE MAINTENANCE
7 - 21
Comp Name (pin) Scope Freq. Data Description
Circ /IC
H/UA
87 ... NSS Logic O=OV
0 L Voltage Supply Ground
88
POS-CHAISHIFTA
_lililllr ______
4.882 kHz A Position Channel AlShift
channel A
t _
+5V
89 +5VDNDD
0 H Volt Supply
- - - - - - - - - - - - - - - - - -
- - - - - --0
90
LEVEUTRGLVL
_IlJJJlSL ______
4.882 kHz A LevellTrigger Level
91 RESETN/RESETN
_IlJJJlSL ___
0 H Reset Not
92 M/M
_IlJJJlSL ______
35 Hz A Multiplex LCD
93 FRAME/FRAME 70 Hz A
Frame clock
94 LlNECULINECL
111111111111
16.66 kHz
A
Line Clock
95 DATACUDATACL
-~---
999.6 kHz A Data Clock
96 DO/LCDO Unstable
60 kHz A Data O/Liquid Crystal Display - -
DO
--
97 D1/LCD1 Unstable 60 kHz A Data 1 /Liquid Crystal Display
---
D1
98 D2/LCD2
Unstable 58 kHz A Data 2/Liquid Crystal Display
D2
- -
99 D3/LCD3
Unstable 58 kHz A Data 3/Liquid Crystal Display - -
D3
100 .. .IRAMSELN
-~--
999.6 kHz A Ram Select Not