21
21
CFD-G505
CFD-G505
• Circuit Boards Location
BATTERY2 board
VOL KEY board
POWER board
TRANS board
BATTERY1 board
LCD board
LED1 board
LED2 board
LED3 board
LED4 board
TUNER KEY board
CD KEY board
H/P board
TC board
TUNER board
MAIN board
CD board
• Waveforms
– CD Board – (Mode: PLAY)
– TC Board –
– TUNER Board –
– MAIN Board –
1
IC701
4
(RF)
0.85
±
0.2 Vp-p
500 mV/DIV, 0.5
µ
s/DIV
2
IC701
qd
(FE)
100 mV/DIV, 20
µ
s/DIV
3
IC701
qg
(TE)
100 mV/DIV, 20
µ
s/DIV
4
IC701
rk
(XOUT)
16.93 MHz
3.2 Vp-p
1 V/DIV, 0.05
µ
s/DIV
1.8 V
Approx. 100 mVp-p
1.8 V
Approx. 100 mVp-p
1
IC2
w;
(XOUT)
75 kHz
1.5 Vp-p
0.5 V/DIV, 5
µ
s/DIV
1
Q301
C
(REC)
19.5
µ
sec
4 Vp-p
0.1 V/DIV, 5
µ
s/DIV
2
T301, HRP301 (YEL)
19.5
µ
sec
36 Vp-p
10 V/DIV, 5
µ
s/DIV
4
IC801
ua
(XT2)
30.5
µ
s
3.6 Vp-p
1 V/DIV, 10
µ
s/DIV
5
IC801
ug
(X2)
238 ns
3.7 Vp-p
1 V/DIV, 100 ns/DIV
