XM-GTX6041 - Sony Car Audio Service Manual (repair manual). Page 9

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XM-GTX6041/GTX60412
XM-GTX6041/GTX60412
9
9
SECTION  4
DIAGRAMS
For Schematic Diagrams.
Note:
•  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.
•  2 : Nonfl ammable resistor.
•  C : Panel designation.
•  A : B+ Line.
•  B : B– Line.
•  Power voltage is dc 14.4 V and fed with regulated dc 
power supply from +12 V and REM terminals.
•  Voltages and waveforms are dc with respect to ground 
under no-signal conditions.
•  Voltages are taken with VOM (Input impedance 10 M
).
  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 numbers refer to waveforms.
• Signal path.
  F : 
AUDIO
• Abbreviation
  IND 
: Indian model
THIS  NOTE  IS  COMMON  FOR  PRINTED  WIRING  BOARDS  AND  SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
•  X : Parts extracted from the component side.
•  Y : Parts extracted from the conductor side.
• 
 : Pattern from the side which enables seeing.
  (The other layers’ patterns are not indicated.)
•  Indication of transistor.
 
C
B
These are omitted. 
E
Q
 
C E
B
These are omitted. 
 
B
These are omitted.
C E
Q
• Waveforms
– MAIN Board –
+
DTC
1IN+
ERROR
AMPLIFIER 1
PWM
COMPALATOR
UNDER
VOLTAGE
LOCKOUT
CONTROL
C1
1D
CTC
COMPALATOR
FEEDBACK
2IN+
2IN–
1
3
4
0.7mA
15
16
OSCILLATOR
PULSE-STEERING
FLIP-FLOP
REF
14
1IN– 2
CT
RT
OUTPUT CTRL
5
6
13
VCC
12
GND 7

ERROR
AMPLIFIER 2
C1 8
E1
9
E2
10
C2
11
REFERENCE
REGURATOR
•  IC Block Diagram
– MAIN Board –
IC903  TL594INSR
• Abbreviation
  IND 
: Indian model
36.4 
Ps
24 Vp-p
1
Q910 – 913 (Drain)
10 V/DIV, 20 
Ps/DIV
2
IC903 
5 (CT)
1 V/DIV, 5 
Ps/DIV
17.5 
Ps
2.2 Vp-p
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