XM-ZR704 - Sony Car Audio Service Manual (repair manual). Page 10

•  A : B+ Line.
•  B : B– Line.
•  Power voltage is dc 14.4V fed with regulated dc power 

supply from +12V and REM terminals

•  Voltages is dc respect to ground under no-signal condi-

tions.

•  Voltages are taken dc with a VOM (Input impedance 

10M

Ω) .

  Voltage variations may be noted due to normal production 

tolerances

•  Waveforms are taken with a oscilloscope.
  Voltage variations may be noted due to normal production 

tolerances.

•  Circled number refer to waveforms.

• Signal path.
  F : 

AUDIO

•  X : Parts extracted from the component side.
• 

 : Pattern from the side which enables seeing.

•  All capacitors are in μF unless otherwise noted. (p: pF) 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 

specifi ed.

•  C : panel designation.

• 

The transistors Q110, 111, 210, 211, 310, 311, 410,  and 411 have 
two different ranks: P rank and Y rank.
The rank of these transistors need to be selected properly accord-
ing to each channel. When replacing any one of these transistors, 
check its rank and replace with the appropriate transistor of the 
same rank.

Rank

Q110, 210, 310, 410

Q111, 211, 311, 411

P

2SC5100-P

(8-729-024-79)

2SA1908-P

(8-872-024-76)

Y

2SC5100-Y

(8-729-024-80)

2SA1908-Y

(8-872-024-77)

Note: 
The components identi-
fi

 ed by mark 0 or dotted 

line with mark 0 are criti-
cal for safety. 
Replace only with part 
number specifi ed.

Note: 
Les composants identifi és 
par une marque 0 sont 
critiques pour la sécurité. 
Ne les remplacer que par 
une piéce portant le nu-
méro spécifi é.