36
36
HCD-HP7
8-9. Schematic Diagram — Front Section —
• See page 40 for IC Block Diagrams. • See page 27 for Waveforms.
-16.5
@@
-24
-26.4
-24
-19
3.3
-11.7
-14.1
-14.5
-26.4
-25
-25
-25
-25
-25
-25
-25
-25
-25
-25
-25
3.4
0
3.3
-26.5
-24
-26.4
-24
-19
-16.5
-19
-19
-16.5
-19
-26.4
-26.4
-26.4
-21.5
0
0
0
0
0
3.3
3.3
0
3.4
@@@@@@@@
3.4
0
3.2
3.4
3.4
3.8
5.9
5.9
1
0.4
5.2
9.6
3.3
3.2
0.7
0
0.7
0.7
0.7
0.7
0.7
2.7
3.2
0
0
0
3.3
3.2
0
3.5
3.3
4
1.3
1.5
3.3
3.3
0
0
0
0
3.3
0
0
3.3
1.4
1.5
1.7
0.4
2.4
1.9
2.8
0.3
3.5
3.3
0
8.4
3.3
8.4
-25
No mark:FM
VACS
ENCODER,ROTARY
VACS
PHONES
PANEL BOARD
VOLUME
IC603
RESET
IC602
RM601
+4V REG
(FLUORESCENT INDICATOR TUBE)
US,CND,AEP
,
EXCEPT
AEP
,UK,RU
EXCEPT
AEP
,UK,RU
AEP
,UK,RU
AEP
,UK,RU
UK,RU
TH
KR,AUS
US,CND,E2, KR,MX,AUS
0
0
0
0
37P
E2,E3,KR,TW,
TH,MX,AUS
RESET SWITCH
0.01
25V
0.022
R684
220
1/8W
R685
18P
22P
220
1/8W
C607 100U 10V
0
I/
I/