XM-PK100D - Sony Car Audio Service Manual (repair manual). Page 7

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XM-PK100D
XM-PK100D
7
7
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.
THIS  NOTE  IS  COMMON  FOR  PRINTED  WIRING  BOARDS  AND  SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
•  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.
•  Voltage and waveform are dc with respect to ground un-
der no-signal condition.
•  Voltages are taken with VOM (Input impedance 10 M
).
  Voltage variations may be noted due to normal production 
tolerances.
•  Waveform are taken with a oscilloscope.
  Voltage variations may be noted due to normal production 
tolerances.
•  Circled numbers refer to waveform.
• Signal path.
  F : 
AUDIO
For Printed Wiring Boards.
Note:
•  X : Parts extracted from the component side.
• 
 : Pattern from the side which enables seeing.
  (The other layers’ patterns are not indicated.)
Note: The components identifi ed by mark 0 or dotted 
line with mark 0 are critical for safety. 
 
Replace only with part number specifi ed.
Caution:
Pattern face side:
(Conductor Side)
Parts face side: 
(Component Side)
Parts on the pattern face side seen 
from the pattern face are indicated.
Parts on the parts face side seen from 
the parts face are indicated.
• Waveform
– MAIN Board –
•  IC Block Diagrams
– MAIN Board –
IC112  IRS2110S
IC901  TL594INSR
5
2
1
HIN
SD
12
VDD
9
10
11
6
7
8
S
R
Q
S
R
Q
COM
LO
4
3 VCC
VS
VB
HO
VDD/VCC
LEVEL
SHIFT
13
LIN 14
VDD/VCC
LEVEL
SHIFT
VSS 15
16
PULSE
GEN
UV
DETECT
DELAY
R
Q
R
S
UV
DETECT
PULSE
FILTER
HV
LEVEL
SHIFT
+
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
1
IC901 
5 (CT)
1 V/DIV, 5 
Ps/DIV
17.5 
Ps
2.2 Vp-p
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