GRUNDIG Service
Chassis CN
2 - 4
Chassisplatte – Blockschaltplan / Chassis Board – Block Circuit Diagram
BS2
BS0
BS1
10K
R1202
R1200
10K
BS0,BS1_System Boot Strap Normal Mode:
Condition: MIPS CPUPLL is 500MHz
00: MIPS 125MHz, DSP 100MHz, AHB 83MHz, AXI 83MHz, and OCP ratio 1:1
01: MIPS 166MHz, DSP 166MHz, AHB 83MHz, AXI 125MHz, and OCP ratio 1:1
10: MIPS 250MHz, DSP 200MHz, AHB 83MHz, AXI 125MHz, and OCP ratio 1:1
11: MIPS 500MHz, DSP 400MHz, AHB 83MHz, AXI 250MHz, and OCP ratio 1:1
BS2_Bypass MaskROM:
0: Using MIPS MaskROM
1: Bypass MIPS MaskROM
BS3,BS4_STBC Boot Strap Option:
00: Boot from STBC, Using STBC MaskROM
01: Boot from STBC, Bypass STBC MaskROM
10: Boot from MIPS, Using STBC MaskROM
11: Boot from MIPS, Bypass STBC MaskROM
BS6,BS7,BS8_STBC Boot Strap Option2:
000: STBC boot from SPI, MIPS boot from NAND (NAND 2 Row address cycles)
001: STBC boot from SPI, MIPS boot from NAND (NAND 3 Row address cycles)
010: STBC & MIPS boot from SPI, MIPS SPI use 12MHz OSC
011: STBC & MIPS boot from SPI, MIPS SPI use 48MHz MPLL (need to bypass STBC)
100: STBC & MIPS boot from NAND (NAND 2 Row address cycles)
110: STBC & MIPS boot from NAND (NAND 3 Row address cycles)
BS9_Internal boot strap:
0: internal boot strap disable
1: internal boot strap enable
BS10,BS11_NAND Page size:
When BS678=000 & 001, 100, 110, it means ¡§NAND Page size¡¨
00: 2K
01: 4K
10: 8K
11: 512B (32MB NAND)
BS12,BS13_NAND Block size:
When BS678=000 & 001, 100, 110, it means ¡§NAND Block size"
00:128 Kbytes
01:256 Kbytes
10:512 Kbytes
11:1 Mbytes
BS14_NAND Boot flow select for secure:
When BS678=000 & 100 & 001 & 110, it means "Boot flow select for secure"
0: boot from ROM then emulator
1: boot from ROM then SRAM
BS0_System Boot Strap Test Mode:
0: programming using i2c
1: programming using Pbus
MIPS Side:
STBC Side:
BS5_STBC watchdog:
0: Disable STBC watchdog
1: Enable STBC watchdog
MIPS Side:
STBC Side:
BS16_Scramble:
0: Disable
1: Enable
BS17,BS18_NAND ECC Mode + Extra Data Size:
00: RS + 16
01: BCH + 16
10: BCH + 32
11: BCH + 56
BS15_Security Boot:
0: no security boot
1: security boot
R1201
10K
R1203
10K*4
NC
R1204
10K
R1208
NC
R1210
NC
R1209
10K
R1205
10K
R1211
10K
R1212
10K
R1214
10K
R1215
NC
R1216
NC
R1213
VCC3.3V
VCC3V3-ST
BS0
BS1
BS2
BS6
BS7
BS8
BS9
BS10
BS11
BS12
BS13
BS14
BS16
BS18
NAND_ALE_BS3
BS4
BS5
NAND_CLE_BS15
NAND_CE1n_BS17
R1206
10k*4
R1207
10k*4
BS9
BS7
BS6
BS8
BS10
BS13
BS16
BS18
BS11
BS14
BS12
NAND_ALE_BS3
NAND_CLE_BS15
NAND_CE1n_BS17
BS4
BS5
IC1100
IC1100
IC1104
IC600
IC601
IC500
IC100
IC1101
IC1103
I2C Bus
Terrestrial
Tuner
C0h
Satellite
Tuner
C4h
Demodulator
C8h
Audio Amplifier
46h
TUN I2C
MAIN I2C
T_S I2C
AMP I2C
PNL I2C
SoC
IC1101
IC100
IC1104
IC500
PANEL
S300
+5V2_ST
VCC3V3-ST
VCC3.3V
VCC1.5V
VCC1.2V
VCC1.15V
VCC
VCC24V
VCC_AUDIO
VCC
IC1002
POWER_SW
D1001
D1000
Optional
L1006
Optional
IC1007
IC1005
IC1003
IC1004
IC1006
CI_VCC
IC700
VCC24V
+5V2_ST
VCC5V
Power Supply
VCC_PWR
PANEL_PWR
OPTIC
SCART
2 x Speaker
TS_I
N
TS_O
UT
NT72453
8/10bit LVDS/ 8bit TTL
DSP Audio Amp.
TAS5739
USB1
HDMI2
DVB-T/C/T2*
Si2151
USB2.0
RGB/CVBS+LR
NAND
Flash
Demodulator
SI2169
TS_OUT
PANEL
I2S
EAR_OUT
D_IF
D_IF
USB2
HDMI1
MAIN_I2C
VCC3V3-ST
VCC3V3
VCC1V5
VCC3V3-ST
+5V2_ST
VCC3.3V
VCC3.3V
VCC24V
VCC5V
VCC5V
+5
V2
_S
T
VCC3V3
RESET
IR, LED & Keyboard
VCC3.3V
VCC1.2V
VCC_PANEL
Headphone/Line Out
VCC1V15
VCC3V3-ST
T_I2C
SPDIF
USB2.0
CI
_P
CMCI
A.
Sc
hD
oc
DVB-S2*
AV2018
T_S I2C
LNB supply
and control
LNBH29EQTR
PCMCIA/CI
Chassisplatte / Chassis Board – Scaler-Bootstrap
