Sony HCD-SX7 - Page 40

HCD-SX7/SX7B
HCD-SX7/SX7B
4040
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.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM)
( ) : CD
*
: Impossible to measure
• 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.
F : AUDIO
J : CD PLAY
f : TUNER
E : USB
a : Bluetooth
d : LAN
G : WIRELESS LAN
L : OPTICAL IN
h : LINE IN
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Circuit Boards Location
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note:
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
Note: When the complete MAIN board is replaced, refer to “CHECK-
ING OF NETWORK CONNECTION” on page 5.
Note: When the complete MAIN board is replaced, refer to “CHECK-
ING OF NETWORK CONNECTION” on page 5.
• MAIN board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
POWER-KEY board
NFC module
(RC-S730 (WW)) (NFC1)
MS-476 board
USB-HP board
Bluetooth module
(BT1)
FRONT board
power unit (PU1)
MAIN board
NETWORK board
TUNER board (SX7)
DAB board (SX7B)
card WLAN/BT combo
module (DAB tuner) (DAB1)
(SX7B)
• New/Former Discrimination
To distinguish the New/Former type of MAIN, FRONT and USB-HP boards, distinguish by the part number of the silk print of each board.
– MAIN Board (Side A) –
– FRONT Board (Conductor Side) –
– USB-HP Board (Conductor Side) –
Former : 1-894-338-11
New : 1-894-338-12
Former : 1-894-339-11
New : 1-894-339-12
Former : 1-894-341-11
New : 1-894-341-12
SYSSET
2020/02/2722:53:44(GMT+09:00)