27
27
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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
: FM
f
: AM
J
: CD AUDIO
L
: CD VIDEO
for printed wiring boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
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)
VIDEO TEST DISC: HLV-401 (TGIS-3)
Part No.: J-6095-031-A
Playback track No.: 34 (Full field color bar 75%)
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
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
27MHz
IC519
4
IC514
<znn
(DA-LRCK)
qs
qa
9
q;
1.5Vp-p
IC518
qa
(CVBS)
1Vp-p
3.5Vp-p
3.5Vp-p
IC514
<znm
(DA-BCK)
qh
qg
qd
qf
• Waveforms (Servo board)
(MODE:CD PLAY)
Approx. 200mVp-p
IC511
qf
(FE)
IC511
wd
(RFDCO)
4
3
1
2
Approx. 2Vp-p
IC511
qh
(TE)
4.8Vp-p
0.8Vp-p
IC516
uj
(LRCK)
IC516
ia
(BCK)
IC516
eg
(MDP)
8
7
5
6
4.8Vp-p
16.9344MHz
IC515
2
(XCK)
3.6Vp-p
1Vp-p
3.2Vp-p
12MHz
IC513
ra
(EXTAL)
0V
0V
22.7µsec
474nsec
7.6µsec
16.9344MHz
IC514
<zn.
(DA-XCK)
2.2Vp-p
1.2Vp-p
27MHz
IC514
<zmm
(VCLK)
3.5Vp-p
IC514
<z,x
(CD-LRCK)
22.7µsec
IC514
<z,v
(CD-BCK)
3.2Vp-p
474nsec
H
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
