1010
ICD-P320
ICD-P320
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• 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
specified.
•
f
: internal component.
• C : panel designation.
• A : B+ Line.
• Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
•Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : PB
(): REC
•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.
E : PB
a : REC
Common Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
f
: internal component.
• : Pattern from the side which enables seeing.
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.
•Waverforms
– MAIN board –
2
IC703 qk (OSC2)
0.5 V/DIV, 0.1
µ
sec/DIV
3
IC703 wa (XO)
0.5 V/DIV, 20
µ
sec/DIV
0.5 V/DIV, 0.1
µ
sec/DIV
1
IC101 ta (XOUT)
1.2 Vp-p
4.096 MHz
8 MHz
2.8 Vp-p
32.768 kHz
3.5 Vp-p
Ref. No. Location
(D505) H-6
D701 E-12
D702 E-12
D2001 E-12
D2002 C-6
D2004 C-5
(D2007) I-6
D2008 A-12
IC101 C-9
IC102 D-10
(IC501) J-6
(IC502) G-6
(IC503) I-6
(IC504) H-3
(IC506) I-6
(IC701) I-8
(IC702) G-10
(IC703) I-10
IC2001 D-8
IC2002 D-11
(Q101) G-11
Q106 B-10
(Q506) H-5
(Q507) I-4
(Q508) I-4
Q509 C-4
(Q702) G-10
Q703 C-8
Q704 C-5
(Q2001) H-12
Q2002 C-5
• Semiconductor
Location (MAIN
Section)
( ): SIDE B
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