Read Sony XM-1600GSD Service Manual online
8
XM-1600GSD
SECTION 3
DIAGRAMS
(
): SIDE B
D1
G-6
(D2)
F-8
D3
F-7
D5
E-6
(D8)
F-8
D9
E-7
D11
D-7
(D12)
D-9
(D13)
D-9
(D14)
D-10
(D15)
E-5
(D16)
E-5
(D19)
C-2
(D20)
C-12
(FET1)
G-2
(FET2)
G-2
(FET3)
F-2
(FET4)
E-2
(FET5)
D-2
(FET6)
D-2
(FET7)
G-12
(FET8)
G-12
(FET9)
F-12
(FET10)
E-12
(FET11)
D-12
(FET12)
D-12
IC1
G-7
IC2
G-8
IC3
G-6
IC4
G-9
IC5
D-7
(IC6)
D-3
IC7
F-6
IC8
D-8
(LED1)
D-14
(LED2)
E-14
(LED3)
F-14
(LED4)
G-14
(PTC1)
E-8
(PTC2)
F-8
(Q1)
F-8
(Q2)
F-7
(Q3)
D-8
(Q4)
E-8
Q5
F-7
Q6
F-7
Q7
E-6
Q8
E-6
Q9
E-6
Q10
G-10
Q11
G-6
(Q12)
C-3
Q13
C-3
Q14
F-6
Q15
F-6
Q16
E-6
Q17
E-9
(Q18)
E-8
(Q19)
E-9
(Q20)
F-9
(Q21)
E-9
(Q22)
E-9
(Q23)
E-9
(Q24)
E-10
(Q25)
E-9
(Q26)
E-10
(Q27)
F-9
(Q28)
F-10
(Q29)
F-9
(Q30)
F-10
(Q31)
F-9
(Q32)
G-9
(Q33)
G-8
Q34
G-10
Q35
D-9
Q36
E-8
Q39
F-6
Q42
F-7
Q43
F-7
Q44
E-6
(ZD1)
G-8
(ZD2)
G-7
(ZD3)
D-7
(ZD4)
D-7
(ZD5)
F-8
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
NON INV
+IN
NON INV
-IN
NON INV
-IN
NON INV
+IN
PWMCOMP
IN
DEADTIME
CONTROL
CT
RT
GND
C1
E1
E2
C2
VCC
OUTPUT
CONTROL
VREF
IC6 TL494CN
• IC Block Diagram
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from +12 V and REMOTE terminals.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
• Waveform
1
IC6
5
(CT)
3.2Vp-p
12µsec
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