Read Sony XTL-W70 (serv.man2) Service Manual online
19
19
XTL-W70
Ref. No.
Location
D1
I-6
D120
B-7
D121
B-7
D602
D-3
D801
A-7
D902
H-2
D903
G-2
D906
F-1
IC1
I-9
IC110
B-7
IC111
B-6
IC406
D-8
IC407
E-7
IC501
C-13
IC601
E-4
IC801
A-8
IC901
G-2
IC902
H-1
IC910
G-3
Q110
B-6
Q120
C-9
Q405
D-9
Q407
D-9
Q408
D-9
Q501
B-11
Q601
B-5
Q602
A-4
Q607
E-3
Q901
G-1
Q910
H-3
• Semiconductor
Location
(MONITOR BOARD
(SIDE B) )
(MONITOR BOARD
(SIDE B) )
• Waveforms
— Monitor Board —
3
1
2
1.0Vp-p
IC407
ef
5.0Vp-p
IC407
eh
IC407
r;
IC407
ra
IC407
rs
4
1.0Vp-p
5
1.0Vp-p
6
1.0Vp-p
5.0Vp-p
H
H
H
H
H
H
IC407
eg
• Waveforms
— Tuner Board —
1
2
8MHz
IC12
wa
(X IN)
2.2Vp-p
0.9Vp-p
3.58MHz
IC24
4
(VXO1)
3
3.1Vp-p
3.5MHz
IC31
6
(XT)
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.
•
H
: adjustment for repair.
• CN101 of XVM-W70 is connected to CN3 (MONITOR
OUT) of Tuner Unit (XT-993V) with a monitor cable.
Power voltage is dc 14.4 V from ACC cord of the Tuner
Unit and fed with regulated dc power supply.
(XVM-W70) (Monitor Section)
Power voltage is dc 14.4 V from ACC cord of the Tuner
Unit and fed with regulated dc power supply.
(XVM-W70) (Monitor Section)
• CN101 of XVM-W70 is connected to CN3 (MONITOR
OUT) of Tuner Unit (XT-993V) with a monitor cable.
Voltage and waveforms are measured at input the color
bar signal from INPUT 1 VIDEO (J5-1) jack of the Tuner
Unit. (XVM-W70) (Monitor Section)
Voltage and waveforms are measured at input the color
bar signal from INPUT 1 VIDEO (J5-1) jack of the Tuner
Unit. (XVM-W70) (Monitor Section)
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC CN4. (Tuner Section)
• Voltage is dc with respect to ground under no-signal
condition. (Tuner Section)
• 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. (Monitor section)
F
: TV and External Video (AUDIO)
J
: NAVI (AUDIO)
c
: VIDEO
• Signal path. (Tuner section)
L
: VIDEO
F
: AUDIO
for printed wiring boards:
• Y
: parts extracted from the conductor side.
•
a
: Through hole. (Monitor, Monitor Switch
Sections.)
•
z
: Through hole. (Tuner section)
•
: 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.
• Semiconductor
Location
(MONITOR BOARD
(SIDE A) )
(MONITOR BOARD
(SIDE A) )
Ref. No.
Location
D122
H-8
D123
H-8
D201
E-11
D203
E-10
D204
F-10
D205
F-10
D206
F-9
D208
E-11
D550
B-9
D802
A-7
D803
A-5
D804
A-5
D810
B-8
D811
A-8
D904
H-2
D905
G-1
IC201
E-12
IC502
B-10
IC510
C-10
IC802
A-6
Q111
H-8
Q112
H-8
Q113
H-9
Q202
D-11
Q205
E-11
Q603
A-5
Q604
A-5
Q801
A-7
Q803
B-5
Q804
A-5
Q810
B-8
Q811
B-8
Click on the first or last page to see other XTL-W70 (serv.man2) service manuals if exist.