Cofdm Demodulator - Grundig Toronto 26-7831 T Service Manual

COFDM Demodulator

VCC3.3V-ST
IC200
AP1117YL-13
3 2
VIN VOUT
1 4
ADJ TAB
C223
R200 120R
100n
R201 56R
8
8
R203 100R C200 100n
IF+
R204 100R C201 100n
IF-
L205
VCC3.3V-ST
300R/100MHz
R207
8K2
R209
IFAGC REF1
10K
R208
C204
10K
10u
6
TP2
I2C-SCL-Tuner
I2C-SDA-Tuner
5
VCC3.3V-ST
5 6
Vorabversion
Preliminary Version
VCC1.8V
VCC1.8V
L203
C221 C222
300R/100MHz
22u 100n
C214 C215 C216
100n 100n 100n
VDD
C202 C203
IC201
22p 22p
30
IFind
VIN
31
#IFind VIN
42
AGC1
41
AGC2/GPP2
28
VDD_ADC VDD_ADC
29
DVSS_ADC
32
AGND
33
AVDD AVDD
34
R211 0R/NC
RFLEV
21
VDD_SAD VDD_SAD
1 26
PLL1TEST
22
TP1
TEST_IN
1 43
GPIO_0
GPP3
35
I2C-SCL-Tuner
CLK2/GPP0
36
I2C-SDA-Tuner
DATA2/GPP1
R218 4K7
R220 4K7
MSB-1200
C205
33p
X200
20.48MHZ
C206
XIN
33p
VCC3.3V-ST VDD
L200
300R/100MHz
C208 C209 C210 C211
100n 100n 100n 100n
Vcore
VDD
VCC3.3V-ST
C217 C218 C219
1 3 5 7
100n 100n 100n
2 4 6 8
R202
10K/NC
Vcore
MICLK
MOCLK
MDO0
MDO1
MDO2
MDO3
MDO4
MDO5
MDO6
MDO7
MSB1200
MOVAL
MOSTRT
BKERR
STATUS
SLEEP
IRQ
DATA1
CLK1
RESET
R221
4K7
VCC1.8V VDD_SAD
L201
300R/100MHz
C212
100n
AVDD
L204
TS_MICLK R225
300R/100MHz
TS_MISYNC
TS_MIVALID
C220
100n
TS_MDI0
R219 4*33R
R205 C224
10p
0R
63
61
R206 47R TS_MICLK
49
RP201 4*33R TS_MDI0
50
TS_MDI1
51
TS_MDI2
52
TS_MDI3
53
TS_MDI4
56
TS_MDI5
57
TS_MDI6
58
TS_MDI7
RP202 4*33R
48
R210 33R TS_MIVALID
47
R212 33R TS_MISYNC
62
BKERR 12
11
Lock R226 100R
10
Sleep R213 4K7
R214 8K2
VCC3.3V-ST
6 1
#IRQ R215 33R Test_12
5
R216 100R
4
R217 100R
9
R224 100R
C207
VCC3.3V-ST
100n
D201
R222 LED(R)
BKERR
100R
D202
R223
LED(G)
Lock
100R
5
VCC1.8V VDD_ADC
L202
300R/100MHz
C213
100n
33R TS1_CLK
TS1_CLK
TS1_SYNC
TS1_SYNC
TS1_VALID TS1_VALID
TS1_D0
TS1_D0
TS_MICLK
TS_MDI0
TS_MDI[1..7] TS_MDI[1..7]
Mains plug in
!
@
Trigger (VCC3.3V-ST)
TS_MIVALID
TS_MISYNC
11
Power-ON/OFF
HI : OFF
LOW : ON
5
TP3
I2C-SDA
I2C-SCL
RESET
RESET
6
6