Circrit Boards Location - Sony hcd-grx40av Service Manual

Q Q
3 7 6 3 1 5 1 5 0
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/ W or less unless otherwise
4
specified.
• ¢ : internal component.
• C : panel designation.
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : FM
f : AM
E : PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
T E
L 1 3 9 4 2 2 9 6 5 1 3
J
: CD
c : digital out
: MD
• Abbreviation
MX : Mexican model
SA : South American model
AUS : Australian model
G : German model
AED : North European model
w w w
.
http://www.xiaoyu163.com
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
•
: parts mounted on the conductor side.
p
•
® : Through hole.
• b : 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 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
Q
B C E
These are omitted.
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
8 9
7-2. CIRCUIT BOARD LOCATION
TR board
SW (C) board
FRONT AMP board
KEY board
SENSER board
H/P board
FRONT board
Q Q
3 7 6 3 1 5 1
• WAVEFORM
CD DECODER SECTION
1
5
IC701 #£ (PLAY MODE) IC702 $ª (B) GFS
(PLAY MODE)
Approx. 1.0Vp-p
2
6
IC701 2 (FEI) IC702 %™ (A) C4M
(PLAY MODE)
Approx. 0.1Vp-p
4.2336MHz
3 7
IC702 &¡ (XTAO)
IC701 $¶ (TEI)
(PLAY MODE)
Approx. 0.1Vp-p
16.9344MHz
4
IC703 @¡ (MDP)
c o
(PLAY MODE)
.
2.4Vp-p
7.7 µsec
21 21
HCD-GRX40AV/RXD6AV
2 4 2
9 8
SW (B) board
SW (D) board
MOTOR (6P) (S) board
MOTOR board
PHOTO SOCKET board
FLD board
FUSE board
5 0 8 9 2 4 9 8
FLD SECTION
8
IC601 $º (X' TAL)
0.1µsec/div
0.1V/div
10MHz 4.8Vp-p
MAIN SECTION
9
IC103 @™ (X OUT)
5.7Vp-p
3.6Vp-p
7.2MHz
!º
CN202 4
(REC MODE)
5.6Vp-p
m
90.790kHz 52Vp-p
9 9
SW (A) board
CD DECORD board
MAIN board
AMP board
2 9 9