XM-GTX6040, XM-GTX6042 - Sony Car Audio Service Manual (repair manual). Page 2

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XM-GTX6040/GTX6042
2
SAFETY-RELATED  COMPONENT  WARNING!
COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE  
WITH  MARK  
0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS 
 
WHOSE  PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  
MANUAL  OR  IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT  
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  0  SUR  
LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE  DES  
PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ  DE  FONC-
TIONNEMENT.  NE  REMPLACER  CES  COMPOSANTS  QUE  
PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  DON-
NÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.
PROTECTOR  OPERATION  CHECK
Thermal Protect
1.  Short across TH901 with the power on.
2.  Verify that the protector is operated and D918 illuminates 
green. When input the signal and verify that there is no output 
on the SP-OUT even when the volume is increased.
3.  Verify that the protector is released and there is an output on 
the SP-OUT when the short is removed.
4.  Likewise, perform items 1 to 3 for TH902 and TH903.
Over Current Protect
1.  Short between the positive and negative sides of the speaker 
output terminals CN903 and CN904 (1/2) with the power on.
  (Perform this shorting for each channel on FRONT and 
REAR.)
2.  Verify that the protector is operated and D918 illuminates red.
3.  Verify that the protector is not released and D918 remains red 
even when the short is removed.
4.  Verify that the protector is released and D918 illuminates 
green when the power is turned off and then on again.
Offset Protect
1.  Short between the +12V terminal of CN904 (2/2) and the 
(L+R) + or (L+R) – of the speaker output terminal CN904 
(1/2).
 
(Short between +12V terminal and (L+R) + and between +12V 
terminal and (L+R) –.)
2.  Verify that the protector is operated and D918 illuminates red.
3.  Verify that the protector is not released and D918 remains red 
even when the short is removed.
4.  Verify that the protector is released and D918 illuminates 
green when the power is turned off and then on again.
Dimensions / Dimensions / Dimensiones
Unit: mm (in)
Unité : mm (po)
Unidad: mm
234 (9 
1
/
4
)
252 (10)
313 (12 
3
/
8
 )
55 
(2 
1
/
4
)
384 (15 
1
/
8
)
ø 6 (
1
/
4
)
313 (12 
3
/
8
 )
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