Waveforms; Printed Wiring Board - Sony DVP-NS72HP Service Manual

DVP-NS72HP/NS77H/NS77HP/NS78H/NS78HP
4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block)
For printed wiring boards:
• : indicates a lead wire mounted on the component
side.
• : indicates a lead wire mounted on the printed side.
a
• : Through hole.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen
from
(Side A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side B) the parts face are indicated.
• Abbreviation
BR : Brazilian Model
CND : Canadian Model
E : Latin America Model
MX : Mexican Model
KR : Korea Model
RUS : Russian Model
SP : Singapore Model
TH : Thailand Model
For schematic diagrams:
• All capacitors are in µF unless otherwise noted. pF : µµF.
50V or less are not indicated except for electrolytics and
tantalums.
• All resistors are in ohms, 1/4W (Chip resistors : 1/10W)
un-less otherwise specified.
kΩ = 1000Ω, MΩ = 1000kΩ.
• 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,
because it is damaged by the heat.
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• : non flammable resistor.
• : fusible resistor.
• : panel designation.
f
• : internal component.
• : adjustment for repair.
• Circled numbers refer to waveforms.
• Voltages are dc between measurement point.
• Readings are taken with a color-bar signal on DVD refer-
ence disc and when playing CD reference disc.
• Readings are taken with a digital multimeter (DC 10MΩ).
• Voltage variations may be noted due to normal production
tolerances.
Note:
The components identified by
mark or dotted line with mark
are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board
name.

WAVEFORMS

MV-55/56
WAVEFORMS
MV-55 BOARD (DVP-NS72HP/NS77H: US/NS77HP: MX/NS78H: CND,SP,KR,TH/NS78HP: E,BR)
MV-56 BOARD (DVP-NS78H:AEP,UK,RUS)
1 IC101 10 (CD PB)
200nsec
2 IC101 10 (DVD PB)
100nsec
3 IC101 189 C/BAR PB (For MV-55/56,
If MV-56 BOARD, change to S-Video Mode)
H
191
4 IC101 C/BAR PB (For MV-55/56,
If MV-56 BOARD, change to S-Video Mode)
H
5 IC101 187 C/BAR PB
H
6 IC101 185 C/BAR PB
H
4-3
7 IC101 183 C/BAR PB 13 IC101 146
(0.5Vp-p to 0.7Vp-p
135MHz
1.1Vp-p)
H
182
8 IC101 C/BAR PB 14 IC304 21 C/BAR PB (MV-55 BOARD ONLY)
IC305 21 C/BAR PB (MV-56 BOARD ONLY)
(0.65Vp-p to
0.7Vp-p
1.48Vp-p)
H
H
9 IC101 185 C/BAR PB 15 IC304 23 C/BAR PB (MV-55 BOARD ONLY)
(MV-56 BOARD ONLY)
IC305 23 C/BAR PB (MV-56 BOARD ONLY)
0.7Vp-p
286 mVp-p
(NTSC)
300 mVp-p
(PAL)
H
10 IC101 183 C/BAR PB 25
16 IC304 C/BAR PB (MV-55 BOARD ONLY)
(MV-56 BOARD ONLY)
25
IC305 C/BAR PB (MV-56 BOARD ONLY)
0.7Vp-p
1Vp-p
H
11 IC101 182 C/BAR PB 17 IC304 27 C/BAR PB (MV-55 BOARD ONLY)
(For MV-56 BOARD ONLY)
IC304 32 C/BAR PB (S-VIDEO MODE)
(MV-56 BOARD ONLY)
0.7Vp-p
1Vp-p
H
12 238 18 IC304 29 C/BAR PB (MV-55 BOARD ONLY)
IC101
29
IC305 C/BAR PB (MV-56 BOARD ONLY)
32
IC304 C/BAR PB (VIDEO MODE &
RGB MODE) (MV-56 BOARD ONLY)
1.9Vp-p
1Vp-p 27MHz
H
19 IC304 31 C/BAR PB (MV-55 BOARD ONLY)
IC304 30 C/BAR PB (S-VIDEO MODE)
(MV-56 BOARD ONLY)
3.3Vp-p
572mVp-p (NTSC)
H
600mVp-p (PAL)
30
20 IC304 C/BAR PB (RGB MODE)
(MV-56 BOARD ONLY)
1.4Vp-p
1.4Vp-p
21 IC304 27 C/BAR PB (RGB MODE)
(MV-56 BOARD ONLY)
1.4Vp-p
1.4Vp-p
22 IC304 25 C/BAR PB (RGB MODE)
(MV-56 BOARD ONLY)
1.4Vp-p
2.0Vp-p
2.0Vp-p
2.0Vp-p
4-4