Bose Lifestyle CD5 Series I, Service Manual

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58
CD5 VOLTAGES AND WAVEFORMS
Power Supply Section Waveforms (Reference Designators 0-99)
Node Waveform Bias Level
(VDC)
Amplitude Frequency Test Condition
C18- Sine -15.3 4.3 VPP 50/60HZ Display off
C19- Sine -15.3 1.3 VPP 50/60HZ Display off
Microcontroller Section Waveforms (Reference Designators 400-499)
Node Waveform Bias Level
(VDC)
Amplitude Frequency Test Condition
U402 pin 38 Sine 2.2 6.0 VPP 4.0MHz
U402 pin 33 Clock pulse -- 0/5V --
D402 Cathode Pulse -- -.5/4.5 V 1.0KHz
D403 Cathode Pulse -- -.5/4.5 V 1.0KHz
D404 Cathode Pulse -- -.5/4.5 V 1.0KHz
D405 Cathode Pulse -- -.5/4.5 V 1.0KHz
Tuner Section Waveforms (Reference Designators 300-399)
Node Waveform Bias Level
(VDC)
Amplitude Frequency Test Condition
U301 pin 13 Sine 6.5 2.4 VPP 456KHz FM on
U301 pin 29 Sine 2.3 0.9 VPP 1450KHz AM, 1 MHz
U301 pin 26 8.3 -- 450KHz AM, Sig. in
U301 pin 30 Sine 0.7 0.8 VPP 1450KHz AM, 1 MHz
U302 pin 7 -- 3.8 VPP 400KHz
FM F.E pin 1 Sine 0.0 0.4 VPP 108.8MHz FM, 98.1
FM F.E pin 4 0.0 -- 10.7MHz FM on
CD Section Waveforms (Reference Designators 500-699)
Node Waveform Bias Level
(VDC)
Amplitude Frequency Test Condition
U501 pin 72
(RFSM) (Eye
Pattern)
1.45 2.4 VPP -- CD playing
U501 pin 60
V C O 3.8 1.9 VPP 8.64MHz CD playing
U502 pin 2 AO Sine 2.2 4.1 VPP 8.64MHz CD playing
U505 pin 26 Sine 2.2 6.0 VPP 4.0MHz
U502 pin 59 4M Square -- 0/5 V 4.234MHz CD playing
U502 pin 64 Xo Sine 2.2 4.8 VPP 16.93MHz CD playing
U502 pin 58 16M 2.1 5.3 VPP 16.93MHz CD playing
U506 pin 5 BCLK Square -- 0/5 V 2.117MHz CD playing
U506 pin 7 LRCK Square -- 0/5 V 44.1MHz CD playing