Read Sony CDX-HR70MS / CDX-HR70MW / CDX-HS70MS / CDX-HS70MW Service Manual online
18
18
CDX-HR70MS/HR70MW/HS70MS/HS70MW
CDX-HR70MS/HR70MW/HS70MS/HS70MW
KEY ACKNOWLEDGE
SWITCH
Q501
LED DRIVE
Q589,590
40
41
52
76
SYSTEM CONTROL
IC501 (2/2)
KEYIN1
27
LCD_CE/FLS_SI
28
LCD_SO/FLS_SO
29
LCD_SCK
71 RC_IN1
RC1
RC0
D501
43 RC_IN0
46
DOOR_IND
KEYIN0
48
RE-IN1
DOOR_SW
47
RE-IN0
64
SIRCS
XOUT
XIN
KEY ACK
XKEYON
70 DOOR_SW
3 AREASEL2
LED801
(DISC-SLOT)
LSW801 (2/2)
(
Z
)
PANEL OPEN
DETECT
(
)
S501
FREQUENCY
SELECT
(
)
J370
REMOTE
IN
(
)
BU+3.3V
HS70MS/HS70MW
10K
9K
+
80
79
X501
32.768kHz
OSCIN
OSCOUT
83
82
X500
18.432MHz
LSW801 (1/2)
FRONT
PANEL
PANEL
UNIT
SIRCS
RE-1
RE-0
KEY-IN0
KEY-IN1
LCD-CLK
LCD-DATA
LCD-CE
DISP+B(+9V)
S802
Z
MAIN
SECTION
A
D599
PANEL
OPEN
DETECT
Q591
• Waveforms
— MAIN Board —
5-2. BLOCK DIAGRAM — DISPLAY SECTION —
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
• C : panel designation.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: TUNER
L
: AUX
g : BUS AUDIO
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
(Page 17)
1Vp-p
32.768kHz
2
IC501 ul (XOUT)
3.1Vp-p
18.432MHz
3
IC501 id (OSCOUT)
0.5 V/DIV, 10
µ
sec/DIV
2.5Vp-p
8.664MHz
1
IC50 0 (XTO)
1 V/DIV, 50 nsec/DIV
1 V/DIV, 20 nsec/DIV
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