ICD-BP150, ICD-BP350 - Sony Audio Service Manual (repair manual). Page 6

6

• All capacitors are in µF unless otherwise noted.  pF: µµF

50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in 

Ω

 and 

1

/

4

 

W or less unless otherwise

specified.

• 

f

 

: internal component.

• 

C

 : panel designation.

• 

A

 : B+ Line.

• Power voltage is dc 3V and fed with regulated dc power

supply from battery terminal.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.
no 

mark : REC

( ) : PB

• Voltages are taken with a VOM (Input impedance 10 M

Ω

).

Voltage variations may be noted due to normal produc-
tion tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-
tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

E

 : PB

a

 : REC

* 

Replacement of IC109 used in this set requires a special
tool.

• 

The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.

Note on Printed Wiring Boards:
• Y

 : parts extracted from the conductor side.

• b

 : Pattern from the side which enables seeing.

Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.

* 

Replacement of IC109 used in this set requires a special
tool.

• 

Lead layouts

surface

Lead layout of

conventional IC

CSP (chip size package)