Bose CD-20 User Manual

67
CD MECHANISM IC AND TRANSISTOR VOLTAGE TABLES
Condition: DC voltage at stop mode.
Voltage readings from common ground are measured with a digital voltmeter.
Pin\Xistor Q201 Q202 Q203 Q204 Q205 Q601 Q602 Q701 Q702 Q703 Q704
B 14.4 14.4 0 5 0 1.8 - 5.6 9.4 0 5
C 0 0 14.4 050514.2 14.4 14.4 0
E 0 0 14.4 0 0 0 4.9 5 8.8 14.4 0
Pin\Xistor Q851 Q852 Q853 Q861
B 0558.2
C 5 0.8 0 5
E 0558.8
IC201
Pin 12345678910111213141516171819
1.9 0 0 2.1 5 5 5 2.5 2.5 0 5 0
NC 4.7
0 4.8 5 2.2 0
Pin 20 21 22 23 24 25 26 27 28
2.2 5 5 2.2 0 2.2 5 5 2.2
Pin 12345678
IC203 3.9 3.9 3.9 0 3.5 3.5 3.9 7.9
IC204 3.9 3.9 3.9 0 3.5 3.5 3.9 7.9
IC601
Pin 12345678910111213141516171819
5 0/5
*1
NC NC
0052.72.50004.6000055
Pin 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
NC
5055004.154.60554.9055
NC NC
Pin 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57
NC NC
0054.8500500/5
*2
5 0 4.6
NC NC NC
5
Pin 58 59 60 61 62 63 64
5000055
Note *1 ID Code 1 .. 0V
ID Code 2 .. 5V
*2 Pickup located utmost inside .. 0V
Pickup located otherwise .. 5V
Pin 12345678
IC602
NC NC NC
000
NC
5
IC603 4.8 0.2 3.3 0 2.5 4.1 0 5
IC604 505
NC NC NC
05

Bose CD-20 Specifications

General

Brand	Bose
Model	CD-20
Category	Stereo System
Language	English