Diagrams - Sony XM-1600GSD Service Manual

XM-1600GSD
THIS NOTE IS COMMON FOR PRINTED WIRING
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
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
specified.
• % : indicates tolerance.
• : internal component.
f
• 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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
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.
• : Through hole.
z
•
: 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 are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• IC Block Diagram
IC6 TL494CN
16 15 14 13
REF. REG.
ERROR
0.1V
ERROR
1 2 3 4
• Waveform
1
3.2Vp-p
12µsec
(CT)
IC6 5
8
SECTION 3

DIAGRAMS

/ W or less unless otherwise
4
12 11 10 9
OSC
5 6 7 8
• Semiconductor Location
Ref. No. Location Ref. No.
D1 G-6 (Q2)
(D2) F-8 (Q3)
D3 F-7 (Q4)
D5 E-6 Q5
(D8) F-8 Q6
D9 E-7 Q7
D11 D-7 Q8
(D12) D-9 Q9
(D13) D-9 Q10
(D14) D-10 Q11
(D15) E-5 (Q12)
(D16) E-5 Q13
Q14
(D19) C-2
Q15
(D20) C-12
Q16
Q17
(FET1) G-2
(Q18)
(FET2) G-2
(Q19)
(FET3) F-2
(FET4) E-2 (Q20)
(FET5) D-2 (Q21)
(FET6) D-2 (Q22)
(FET7) G-12 (Q23)
(FET8) G-12 (Q24)
(FET9) F-12 (Q25)
(FET10) E-12 (Q26)
(FET11) D-12 (Q27)
(FET12) D-12 (Q28)
(Q29)
IC1 G-7 (Q30)
IC2 G-8 (Q31)
IC3 G-6 (Q32)
IC4 G-9 (Q33)
IC5 D-7 Q34
(IC6) D-3 Q35
IC7 F-6 Q36
IC8 D-8 Q39
Q42
(LED1) D-14 Q43
(LED2) E-14 Q44
(LED3) F-14
(LED4) G-14 (ZD1)
(ZD2)
(PTC1) E-8 (ZD3)
(PTC2) F-8 (ZD4)
(ZD5)
(Q1) F-8
( ): SIDE B
Location
F-7
D-8
E-8
F-7
F-7
E-6
E-6
E-6
G-10
G-6
C-3
C-3
F-6
F-6
E-6
E-9
E-8
E-9
F-9
E-9
E-9
E-9
E-10
E-9
E-10
F-9
F-10
F-9
F-10
F-9
G-9
G-8
G-10
D-9
E-8
F-6
F-7
F-7
E-6
G-8
G-7
D-7
D-7
F-8