– 7 – – 8 –
TAM-100
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.
• U : B+ Line.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : Add to DC 12V and fed with regulated dc power
supply from external power voltage jack.
∗
: Impossible to measure
• Indication of transistor
2-2. PRINTED WIRING BOARD — KEY SECTION —
• Waveform
1
U1
!§
(XOUT)
5.6Vp-p
4MHz
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tol-
erances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tol-
erances.
• Circled numbers refer to waveforms.
• Signal path.
F : AUDIO
• Abbreviation
CND : Canadian model
For printed wiring boards.
Note:
• : carbon pattern
• X : parts extracted from the component side.
•
¢
: internal component.
• b : Pattern from the side which enables seeing.
Q
C
These are omitted
EB
TIME
VOL+
VOL-
ERASE
GREETING
SET/REC
MAIL BOX3
SLOW/
REPEAT
MAIL BOX1
PLAY/STOP
QUICK/SKIP
LED5
16 9
18
ANSWER
ON/OFF
271
MEMO
MAIL BOX2
W1
A
K
LED1
MAIN BOARD
A
(Page 8)
09
1-673-413-
11
KEY BOARD
A
K
LED4
A
K
LED3
A
K
LED2
