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GRUNDIG Service
Hauptplatte / Main Board – Scaler
+3.3V_STBY
3.3V_AVDD
L500
10uH
C537
C500
22U
100N
+3.3V_STBY
3.3V_DVDD
L501
10uH
C538
C513
22U
100N
+1.8V_STBY
CVDD_1.8
L502
10uH
C539
C521
22U
100N
+1.8V_STBY
AVDD_1.8
L503
10uH
C540
22U
power on (trigger: +12V)
2
&
*
R515
R516
R517
R518
+5V_STBY
3.3V_DVDD
C505
C506
C507
C508
C509
C511
100N
100N
100N
100N
100N
100N
C514
C515
C516
C519
100N
100N
100N
100N
C522
C523
C524
C525
C527
100N
100N
100N
100N
100N
C529
C530
C531
C532
C533
C546
100N
100N
100N
100N
100N
220P
R504
10K
TxD
RxD
DDC_SCL_VGA
DDC_SDA_VGA
R506
RMADDR0
10K
R507
RMADDR1
10K
R508
RMADDR2
10K
R509
RMADDR3
10K
R510
RMADDR4
10K
R512
RMADDR5
10K
R513
RMADDR6
10K
R514
RMADDR7
10K
RMADDR8
10K
RMADDR9
10K
RMADDR10
10K
RMADDR11
R519
10K
RMADDR12
10K
R520
RMADDR13
10K
R521
RMADDR14
10K
R522
RMADDR15
10K
R523
RMADDR16
10K
R524
RMADDR17
10K
U503
ROM_CSN
1
8
CE
VCC
RMADDR15
2
7
SO
HOLD
R544
SPI_WE
3
6
WP
SCK
4
5
10K
GND
VSS
SI
25VF040
XTAL
NVRAM
Clock
Generation
Resetn
Reset CCT
Serial
Triple
Master
ADC&PLL
Analog
Schmitt
RGB
Trigg er
DDC2Bi
Ultra-
Reliable
DVI
DVI Rx
HDCP
DDC2Bi
C543
422 to 444
BT 656
Conversion
220P
Test
Pattern
Generator
GND
C520
100N
GND
3.3V_AVDD
3.3V_DVDD
C545
11
220P
24
26
27
GND
40
113
120
125
C547
130
134
220P
141
145
GND
150
154
172
171
12
GND
23
25
28
39
115
117
+5V_STBY
122
127
131
R505
S505
144
10K
1
149
153
2
C548
156
168
3
177
5P
136
4
Y500
170
C549
MTA100_4
14.318MHz
169
3.3V_AVDD
GND
5P
71
72
77
78
79
2
80
C534
178
GND
100N
142
BLUE+
143
BLUE-
146
SOG_MCSS
147
GREEN+
148
GREEN-
151
RED+
152
RED-
181
HS_PC
182
VS_PC
155
118
119
123
3.3V_AVDD
124
128
129
132
R539
133
250R%1
138
114
RMADDR17
183
RMADDR16
184
RMADDR15
185
RMADDR14
186
RMADDR13
187
RMADDR12
188
RMADDR11
189
RMADDR10
192
RMADDR9
193
RMADDR8
194
RMADDR7
195
RMADDR6
196
RMADDR5
197
RMADDR4
198
RMADDR3
199
RMADDR2
200
RMADDR1
201
RMADDR0
202
ROM_OEN
R527
3.3V_DVDD
10K
ROM_WEN
R526
3.3V_DVDD
10K
ROM_CSN
R525
GND
10K
RMDATA7
203
RMDATA6
204
RMDATA5
207
RMDATA4
208
RMDATA3
RMDATA2
RMDATA1
RMDATA0
GND
C550
100N
3.3V_DVDD
R543
3.3V_DVDD
RMADDR17
10K
RMADDR16
2 - 2
Chassis
Keypad Sensing
Parallel or Serial
GPIO
Temp Sensor
EEPROM
3 X General-
X86
External
Purpose ADC
Micro-controller
ROM I/F
GPIO
On-chip
OSD
Controller
RAM / ROM
ACM-II
uv
Chroma
Adjust
Display
Timing
ACC
Y
Control
Luma
Shaping
Histogram
High-light Window
3.3V_DVDD
AVDD_1.8
AVDD_LV_E_3.3
AVDD_LV_E_3.3
AVDD_lv_3.3
AVDD_LV_O_3.3
AVDD_LV_O_3.3
AVDD_IMB_3.3
AVDD_RX 2_3.3
AVDD_RX 1_3.3
AVDD_RX 0_3.3
AVDD_RXC_3.3
AVDD_BLUE_3.3
AVDD_GREEN_3.3
AVDD_RED_3.3
AVDD_ADC_3.3
LBADC_VDD_3.3
AVDD_RPLL_3.3
AVSS_LV_E
AVSS_LV_E
AVSS_LV
AVSS_LV_O
AVSS_LV_O
AGND_IMB
AGND_RX2
AGND_RX1
AGND_RX0
AGND_RXC
AGND_BLUE
AGND_GREEN
AGND_RED
AGND_ADC
AGND_RPLL
LBADC_GND
GND_RXPLL
TCLK
XTAL
HOST_SCL/UART_DI
HOST_SDA/UART_DO
DDC_SCL_VGA
DDC_SDA_VGA
DDC_SCL_DVI
DDC_SDA_DVI
RESETn
BLUE+
BLUE-
SOG_MCSS
GREEN+
GREEN-
RED+
RED-
HSYNC/CSYNC
VSYNC
ADC_TEST/RESERVED
RX2+
RX2-
RX1+
RX1-
RX0+
RX0-
RXC+
RXC-
CLKOUT/RESERVED
REXT
ROM_ADDR17
ROM_ADDR16
ROM_ADDR15
ROM_ADDR14
ROM_ADDR13
ROM_ADDR12
ROM_ADDR11
ROM_ADDR10
ROM_ADDR9
ROM_ADDR8
ROM_ADDR7
ROM_ADDR6
ROM_ADDR5
ROM_ADDR4
ROM_ADDR3
ROM_ADDR2
ROM_ADDR1
ROM_ADDR0
5
ROM_OEn
6
ROM_WEn
7
ROM_CSn
ROM_DATA7
ROM_DATA6
ROM_DATA5
ROM_DATA4
1
ROM_DATA3
2
ROM_DATA2
3
ROM_DATA1
4
ROM_DATA0
17
18
L5A-26"...32"
4 X
Back-light
PWM
Audio
2 X
LVDS
LVDS
Panel I/F
Tx
GM5221
CVDD_1.8
VCO_LV/RESERV
CH3P_LV_E/
CH3N_LV_E/E
CLKP_LV_E/E
CLKN_LV_E/E
CH2P_LV_E/
CH2N_LV_E/E
CH1P_LV_E/
CH1N_LV_E/E
CH0P_LV_E/
CH0N_LV_E/E
CH3P_LV_O/
CH3N_LV_O/E
CLKP_LV_O/E
CLKN_LV_O/E
CH2P_LV_O/
CH2N_LV_O/E
CH1P_LV_O/
CH1N_LV_O/E
CH0P_LV_O/
CH0N_LV_O/E
OR0/JTAG_RE
OR1/RESER
OR2/RESER
OR3/RESER
OR4/RESER
OR5/RESER
OR6/RESER
OR7/RESER
OG0/JTAG_T
OG1/RESER
OG5/JTAG_
D
P
P
G
G
G
G
G
G
G
GPIO7/IR
GPIO8/IR
GPIO9
GPIO10/
GPIO11/PW
GPIO12/PW
GPIO13/PW
GPIO14/PW
GP
RESERVED/VBUFC_RP
VBUFC_DVI/RESERV
STI_TM2/RESERV
CR
CR
CR
CR
CR
CR
CR
CR
CR
C
CR
CR
GND_R
GND_A
LBADC_
LBADC_
LBADC_
LBADC_RETU
VCLK
YUV[0..7]
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