Diagrams - Sony STR-K790 - Lifier Service Manual

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 Diagrams.
Note:
• All capacitors are in F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
1
• All resistors are in and / W or less unless otherwise
4
specified.
• % : indicates tolerance.
• f : internal component.
• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.
Note:
Note:
Les composants identifiés
The components identi-
fied by mark 0 or dot- par une marque 0 sont cri-
ted line with mark 0 are tiques pour la sécurité.
critical for safety. Ne les remplacer que par une
piéce por tant le numéro
Replace only with part
spécifié.
number specified.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 M ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F : FM
J
: ANALOG
c
: DIGITAL
I
: VIDEO
STR-K790
SECTION 4

DIAGRAMS

For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• : Through hole.
a
• f : internal component.
• : Pattern from the side which enables seeing.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
• Indication of transistor.
C
Q These are omitted.
B E
B C E
These are omitted.
• Circuit Boards Location
STANDBY board
POWER board
DCAC board
HEADPHONE board
• Waveforms
– DIGITAL Board –
1
IC1905 9 (MCLK1)
3.5 Vp-p
72 ns
1 V/DIV, 40 ns/DIV
2
IC1101 id (X1)
4.2 Vp-p
41.6 n s
1 V/DIV, 20 ns/DIV
3
IC1301 ws (XIN)
4.2 Vp-p
81.4 ns
1 V/DIV, 40 ns/DIV
13 13
HDMI SW board (AEP,UK)
HDMI BRIDGE board (AEP,UK)
DISPLAY board
MAIN board
STR-K790
DIGITAL board