Diagrams; Circuit Boards Location - Sony HCD-GX30 Service Manual

SECTION 5

DIAGRAMS

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.
• f : internal component.
• C : panel designation.
Note: Note:
The components identi- Les composants identifiés par
fied by mark 0 or dotted une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part piéce portant le numéro
spécifié.
number specified.
• A : B+ Line.
• B : 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.
no mark : FM
< > : CD
[ ] : TAPE
• 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
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J
: CD
• Abbreviation
AR : Argentina model
AUS : Australian model
E2 : 120V AC area in E model
E51 : 220V AC area in E model
EA : Saudi Arabia model
MX : Mexican model
SP : Singapore model
TH : Thai model
TW : Taiwan model
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
• Indication of transistor.
C
Q
These are omitted.
B E
Q
B C E
These are omitted.

5-1. Circuit Boards Location

SUB TRANS board
PANEL board
KEYBOARD board
DRIVER board
ADDRESS SENSOR board
REM board
TRANS board
• Waveforms
1
IC751 rf (XOUT)
59 ns
2 V/DIV, 20 ns/DIV
2
IC601 qd (XT2)
30.5 s
2 V/DIV, 10 s/DIV
19 19
HCD-GX30/RG22/RG33
MOTOR board
VIDEO board
SENSOR board
POWER board
3 5
IC601 qh (CF2) Q209 Collector
(TAPE REC mode)
4.9 Vp-p
5.6 Vp-p
100 ns 17 s
5 V/DIV, 10 s/DIV
2 V/DIV, 40 ns/DIV
4 6
IC102 ws (XOUT) IC103 qf (XO)
5.2 Vp-p
5.0 Vp-p
231 ns
222 ns
2 V/DIV, 100 ns/DIV 1 V/DIV, 100 ns/DIV
CD board
MAIN board
SPDL board
13.5 Vp-p