Philips SCOPEMETER PM93 Service Manual page 167

7 - 38 CORRECTIVE MAINTENANCE
Comp Name Scope Freq. Data Description
Circ/IC H/UA
+5
9 So11b
*
Input no.8
- - - - - - - - - - - - - - - - - - - - - - - - - - 0
10 Gnd 0 Ground
11 TP909
*
Output no.8
12 TP909
*
Output no.7
13 TP908
*
Output no.6
14 TP908
*
Output no.5
15 TP907
*
Output noA
16 TP907
*
Output no.3
17 TP906
*
Output no.2
18 TP906
*
Output no.1
19 Ey
t ____________________________
~5
*
Control signal
20 Vcc
t ____________________________
~5
0
Power supply
*
PULSES DURING AUTOSET
Table 7.12 Signals measured on buffer/driver 02903
Logic O=OV Logic 1 =+5V
Comp Name Scope
Freq. Data
Description
Circ/IC H/UA
Ey
t ____________________________
~5
*
Control signal
2 Sg4a
t ____________________________
~5
*
Input no.1
3 Sg4a
t ____________________________
~5
*
Input no.2
4 Sg5a
*
Input no.3
5 Sg5a
*
Input noA
6 Sg6a
t ____________________________
~5
*
Input no.5
*
PULSES DURING AUTOSET