Cd5 Voltages And Waveforms - Bose Life CD5 Series I Service Manual

CD5 VOLTAGES AND WAVEFORMS

Node
Min.
Q1 C
Q1 C
Q3 C
Q4 B
Q4 E
Power Supply Section Voltages (Reference Designators 0-99)
Node
P1 pin 1 (AC power
in)
D1 Cathode
C3+ (+10V supply)
C3+ (+10V supply)
D2 Anode
C8- (-12V supply)
C8- (-12V supply)
C4+
D6 Cathode (M+
supply)
D3 Cathode
C10+ (+8V supply)
D4 Cathode
C12+ (+5V supply)
D9 Anode (-24V
supply)
C18- (VFD heater)
C19- (VFD heater)
Across VFD heater
Audio Section Voltages (Reference Designators 100-299)
Node
Min.
J8 pin 8
J8 pin 8
J8 pin 6
J8 pin 6
J8 pin 7
J8 pin 7
Remote Control Voltages
Voltages
Typical Max.
4.50
0.00
0.00
1.25
.62
Voltages
Min. Typical
13.0
14.5
9.4 10.3
0.0
-17.9
-12.8 -12.0
0.0
0.0
14.25
11.5 13.6
7.5 8.0
9.2 10.4
4.7 5.0
-26.5 -24.5
-15.3
-15.3
2.6
Voltages
Typical Max.
-10.7
+4.9
-10.7
+4.9
-10.7
+4.9
55
Units Test Condition
VDC Button pressed
VDC Remote off
VDC Remote off
VDC Button pressed
VDC Button pressed
Units Test Condition
Max.
VRMS
VDC
11 VDC
VDC
VDC
-11.2 VDC
VDC
VDC
VDC
14.8 VDC
8.5 VDC
12.4 VDC
5.3 VDC
-22.3 VDC
VDC
VDC
4.3 VRMS
Units Test Condition
VDC FM on
VDC Unit off
VDC A unmuted
VDC A muted
VDC B unmuted
VDC B muted
FM on
FM on
FM on
Unit off
FM on
FM on
FM on
Unit off
FM on
FM on
FM on
FM on
FM on
FM on
FM on
FM on
FM on