RDR-GXD500
4-4
4-3
WAVEFORMS
AV-091
(For schematic diagrams)
• All capacitors are in
µ
F unless otherwise noted. pF :
µµ
F.
50V or less are not indicated except for electrolytics and
tantalums.
• All resistors are in ohms, 1/4 W (Chip resistors : 1 /10 W) un-less
otherwise specified.
k
Ω
=1000
Ω
, M
Ω
=1000k
Ω
.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum capacitor, be-
cause it is damaged by the heat.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
•
2
: non flammable resistor
•
5
: fusible resistor
•
C
: panel designation
•
f
: internal component.
•
C
: adjustment for repair.
•
U
: B+ Line
•
V
: B– Line
• Circled numbers refer to waveforms.
• Voltages are dc between measurement point.
• Readings are taken with a color-bar signals on DVD reference
disc.
• Readings are taken with a digital multimeter (DC 10MW).
• Voltage variations may be noted due to normal production toler-
ances.
THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
When indicating parts by reference number, please include
the board name.
4-2. SCHEMATIC DIAGRAMS
WAVEFORMS
Note :
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
AV-091
BOARD
54.3 ns
4.2 Vp-p
1
IC452
wh
30.4 us
3.1 Vp-p
2
IC603
0
100 ns
5.2 Vp-p
3
IC603
qs
225.5 ns
1.0 Vp-p
4
IC607
2
225.5 ns
5.5 Vp-p
5
IC607
7
H
1.0 Vp-p
7
IC802
ws
H
2.0 Vp-p
8
IC802
wf
H
2.1 Vp-p
9
IC802
wl
H
1.3 Vp-p
0
IC802
ea
H
1.0 Vp-p
6
IC802
w;
H
1.0 Vp-p
qa
IC802
ed
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
