HCD-DR7AV/XB800AV
– 35 –
– 36 –
THIS NOTE IS COMMON FOR PRINTED WIRING
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. pF: µµF
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
specified.
•
¢
: internal component.
• C : panel designation.
For printed wiring boards.
Note:
• X : parts extracted from the component side.
•
®
: Through hole.
•
¢
: internal component.
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• 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 pro-
duction tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : FM
g : VIDEO/MD
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J : CD
c : digital out
I : PHONO
• Abbreviation
EA : Saudi Arabia model.
AUS : Australian model.
SP : Singapore model.
TH : Thai model.
IC101 #ª FE
1
2
3
4
5
WAVEFORMS
– BD (CD) SECTION –
IC101 ^§ XTAI
IC101 %¡ RF AC
IC101 $¡ TE
IC101 @§ MDP
• Indication of transistor
C
These are omitted
EB
Q
C
These are omitted
EB
1
IC601 &™ X-OUT
– PANEL FL SECTION –
1
2
IC501 !¡ XC-OUT
IC501 !£ X-OUT
– MAIN (2/5) SECTION –
3.1Vp-p
16.9MHz
1.2Vp-p
(PLAY)
2.5V
APPROX 500mVp-p (PLAY)
2.5V
APPROX 200m Vp-p (PLAY)
7.5µsec
2.4Vp-p
16MHz
5.5Vp-p
32.768kHz
5.2Vp-p
12.5MHz
3.4Vp-p
Note: The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
www.freeservicemanuals.info
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