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CDX-GT660UE/GT660UP/GT660UV/GT662UE/GT710UV/GT717UV
31
• IC Block Diagrams
– MAIN Board –
IC301 TDF8556AJ/N5 (GT660UE/GT660UP/GT662UE/GT710UV/GT717UV)
TDF8556AJ/N5/M5
(GT660UV)
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOAD DUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL–
OUT-FL+
OUT-RL–
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR–
OUT-FR+
OUT-FR–
DIAG
ANT-REM
AMP-REM
SERVO+3.3V
MECHA+6V
VP
BU+B
I2C_SIO
I2C_SCK
VP2
P-GND1
SVR
IN-FL
IN-FR
BEEP
P-GND3
VP1
STB
P-GND4
RST
CRES
AUDIO+B
(8.5V)
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
IC402 MM1836A33NRE
VOUT
4
CONT 1
GND 2
NC 3
VIN
5
+
–
VOLTAGE
REFERENCE
REGULATOR
CURRENT
LIMIT
THERMAL
SHUTDOWN
BIAS
• Waveforms
– MAIN Board –
2
IC501
qd
(OSCOUT)
1 V/DIV, 50 ns/DIV
145 ns
3 Vp-p
3
IC701
yj
(XO)
1 V/DIV, 20 ns/DIV
59 ns
3.7 Vp-p
4
IC601
is
(X2)
1 V/DIV, 50 ns/DIV
83 ns
2 Vp-p
1
IC501
qa
(XOUT)
1 V/DIV, 20
P
s/DIV
30.4
P
s
2.6 Vp-p