Philips PM2519 - Page 66

4.2.11. Display part test
BLANK
DISPLAY ?
YES
SUPPLY VOLTAGE
ON X1700 PIN2 ?
=~b,6V?
CHECK POWER
SUPPLY PART
SUPPLY VOLTAGE
ON X1700 PING
2-9V?
YES
ONE OR MORE
SEGMENTS
BLANKED ?
CHECK
INTERCONNECTION
RUBBER
CHECK RUBBER
INTERCONNECTION
OF THE
LCD DISPLAY
SET INSTRUMENT
IN°C AND SHORT-
- CIRCUIT TP 1001
ANO TP 1002
FOR ONE SECOND
RANDOM OF
SEGMENTS
DISPLAYED ?
6 THE FOLLOWING DISPLAY PRESENT ?
slole| ais
YES
279
rear
Put
20 2%
»>
CHECK
DIGITAL PART
=
YES dq
NO
CHECK
INTERCONNECTION
RUBBER AND
D4704,04705
CHECK IF BACKPLANE
SIGNALS ARE PRESENT
AND ALSO THE DATA
SIGNALS ? (SEE TABLE)
SEE FIG 41
(AS EXAMPLE}
CORRECT
DISPLAY PART
CORRECT
DISPLAY PART
SYMBOLS.
s5_ $6 S7 S8
AND SEGMENTS
$9 S10 S11 S12 S13S$14 S15 $16 S17 $18
S2_ $3 S4
: i & P1 D4 Ph F D3 P3 n D2 P2 wp DI m Hz dB °C
Z S + F4 A& B4 F3 AB B3 F2 A2 B2 F1 Al B1 Q K M
— ~ ES £4 G4 C4 £3 G3 C3 E2 G2 C2 £1 GI Cr MAA V
BARGRAPH NUMBERS AND SYMBOLS
X1 X2 X3 X4 X5_ X6 X7 KB X9 XIOXM X12.X13 Xi2 X15 X16 X17 xi8 |
0 5 6 EXT13 1% # 21 22 mm 29 30 37 38 49 45 46
1 4 7 § 12 15 17 20 23 25 28 31 33 36 39 41 44 47 >
2 3 8 10 11 16 18 19 24 26 27 32 34 35 40 42 43 48 :
CHECK
04705 AND D4704
ST4430
840713
NOTE: Measurement zero is the low socket.