Quad 405 Service Manual 2
This is the 24 pages manual for Quad 405 Service Manual 2.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from Quad 405 Service Manual 2 (Ocr-read)
Page 1
QUQD 405
POWER AMPLIFIER
Service Data
The Acoustical Manufacturing Co. Ltd
St Peters Road, Huntingdon, Cambs, PE18 708, England
Telephone: 0480 52567 Telex 32348 OUAD G
Page 2
Contents
Circuit Description
Test Equipment
Disconnecting Clamp Circuits
Amplifier Circuit Testing
Clamp Circuit Testing
Fault Finding
Modifications
Clamp Circuit
Replacing a Clamp Board
Conversion of a 405 to a Mono 180 watt amplifier
Replacing Transformer
Replacing Amplifier Modules
QUAD 405-2
Assembly Diagram
Amplifier Board Layout Diagram M12368 ISS 9 and 10
Amplifier Board Layout Diagram M12565 lSS 3
Circuit Diagram 2 amplifier boards M12368 ISS 5 and 6
Circuit Diagram 3 amplifier board M12368 ISS 7
Circuit Diagram 4 amplifier board M12368 ISS 9
Circuit Diagram 5 amplifier board M12368 [SS 9 and 10
Circuit Diagram 6 amplifier board M12565 ISS 3
Circuit Diagram 7 amplifier board M12565 lSS 5
Circuit Diagram 8 amplifier board M12565 ISS 6
Circuit Diagram 9 amplifier board M12565 ISS 7
Circuit Diagram 10 amplifier board M12565 ISS 7
b
_d_._ g
Naaommmmmmbpwm
opp.
rev. 1 5,
rev.
.1
N
16
17
13
14
15
16
17
18
19
20
21