SPP-933/934
– 33 –
– 34 –
5-9.
PRINTED WIRING BOARD – BASE KEY Section –
• Semiconductor
Location
Ref. No.
Location
D751
H-3
D752
I-8
D753
H-5
D754
G-3
• Waveforms
– BASE MAIN Board –
1
IC3
1
(OSC1)
500 mV/DIV, 50 ns/DIV
2
IC8
5
(X0)
1 V/DIV, 100 ns/DIV
1.2 Vp-p
99 ns
2.8 Vp-p
280 ns
– HAND MAIN Board –
3
IC601
1
(OSC1)
500 mV/DIV, 50 ns/DIV
1.5 Vp-p
99 ns
4
IC603
5
(X0)
1 V/DIV, 100 ns/DIV
3.3 Vp-p
280 ns
D752
D753
A
K
D751-754
INTERCOM
A
K
D751
A
K
CHARGE
D754
A
K
LINE
J751
1-676-651-
(11)
11
BASE KEY BOARD
C
BASE MAIN
BOARD
J3
SP701
(SPEAKER)
RED
BLK
1
2
16
17
S705
S712
S702
S714
S718
S713
PGM
S709
REDIAL/PAUSE
S704
SPEED DIAL
1
S701
2 ABC
S703
3 DEF
S708
6 MNO
S707
5 JKL
S706
4 GHI
S717
S715
TONE
S710
7 PQRS
S711
8 TUV
9 WXYZ
S716
0 OPER
S719
HOLD
SPEAKERPHONE
D753, S705
D752, S718
1
2
3
4
5
6
7
8
A
B
C
D
E
F
G
H
I
05
FLASH
(Page 30)
Summary of Contents for SPP-933 - 900mhz Cordless Telephone
Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 4: ... 4 ...
Page 5: ... 5 ...
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Page 27: ... 35 SPP 933 934 5 10 SCHEMATIC DIAGRAM BASE KEY Section Page 32 ...
