Sony HT-CT380 Service Manual page 35

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Internal component.
f
• : 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
(Conductor Side) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
Caution:
Pattern face side: Parts on the pattern face side seen
(SIDE B) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
• MAIN board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
• Indication of transistor.
C
Q
These are omitted.
B E
Note 1: When the complete MAIN board is replaced, refer
to "NOTE OF REPLACING THE IC3001 ON THE
MAIN BOARD AND THE COMPLETE MAIN
BOARD" and "NOTES ON THE WIRELESS CON-
NECTION (LINK) AFTER REPAIRS ARE COM-
PLETE" on page 5.
Note 2: When the complete POWER board is replaced, refer
to "BOND FIXATION OF ELECTRIC PARTS" on
page 6.
HT-CT380/CT381
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 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
specifi ed.
• : Internal component.
f
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
Note: Note:
The components identi- Les composants identifi és
fi ed by mark 0 or dotted par une marque 0 sont
line with mark 0 are criti- critiques pour la sécurité.
cal for safety. Ne les remplacer que par
Replace only with part une pièce portant le nu-
number specifi ed. méro spécifi é.
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO (ANALOG)
F
: AUDIO (DIGITAL)
J
E : VIDEO
: Bluetooth
N
Note 1: When the complete MAIN board is replaced, refer
to "NOTE OF REPLACING THE IC3001 ON THE
MAIN BOARD AND THE COMPLETE MAIN
BOARD" and "NOTES ON THE WIRELESS CON-
NECTION (LINK) AFTER REPAIRS ARE COM-
PLETE" on page 5.
Note 2: When the complete POWER board is replaced, refer
to "BOND FIXATION OF ELECTRIC PARTS" on
page 6.
• Waveforms
– MAIN Board –
IC3109 ud (XTALOUT)
1
3.8 Vp-p
37.2 ns
1 V/DIV, 20 ns/DIV
IC3109 oa (MCLK)
2
4.6 Vp-p
59 ns
1 V/DIV, 50 ns/DIV
3 IC2005 qk (LRCK)
4.1 Vp-p
20.8 s
1 V/DIV, 10 s/DIV
4 IC2005 ql (BCK)
4.5 Vp-p
326 ns
1 V/DIV, 200 ns/DIV
IC2005 w; (SCKO)
5
3.7 Vp-p
40.2 ns
1 V/DIV, 20 ns/DIV
IC2005 r; (XTO)
6
2.8 Vp-p
40.2 ns
1 V/DIV, 20 ns/DIV
35 35
IC2009 qd (XTAL) IC1009 1 (BOOT)
7 qd
3.7 Vp-p
39.6 ns
1 V/DIV, 20 ns/DIV 5 V/DIV, 2 s/DIV
IC2009 y; (BCK_OUT)
8
4.4 Vp-p
326 ns
1 V/DIV, 200 ns/DIV
– DISPLAY Board –
9 IC2009 ya (LRCLK_OUT) wa Q802 (Base)
4.3 Vp-p
20.8 s
1 V/DIV, 10 s/DIV
q; IC2012 1 (BST)
24 Vp-p
3 s
5 V/DIV, 2 s/DIV
IC1002 qa (Xout)
qa
2.7 Vp-p
126 ns
1 V/DIV, 100 ns/DIV
IC3705 1 (BOOT)
qs
24 Vp-p
2.9 s
5 V/DIV, 2 s/DIV
HT-CT380/CT381
20.2 Vp-p
3 s
12 Vp-p
8 s
5 V/DIV, 5 s/DIV