Saturn CV512H-U42 Schematic
CV512H-U42 Service Manual
INPUT
ATV (Analog PAL/SECAM)，DTV (DVB-T2/T/C)
1
DTV (DVB-S2)
-
Mini YpbPr/RCA YPbpr
1
Mini AV In(CVBS -PAL/NTSC + L,R)
-
SCART/RCA AV IN
1
PC In (RGB/H/V + L/R)
1
USB2.0 (MP3/JPEG/RMVB)
2
HDMI In (HDMI-1.4a)
3
COAX/OPTICAL
1
CV512H-U 42 after-sales support and maintenance manual
CV512H- U42 is a power supply, constant current driver, one of the TV boards, may receive a PAL /
SECAM standard analog television signal, for European (including UK) and other
markets. CV512H-U42 used in high efficiency switching power supply, matching backlight
power 45 W or less, typically a voltage value matching the backlight 45 V ~ 100V, dual backlight
parallel output, -42 inch to 32-inch LED backlight screen.
1. the safety instructions:
1.1 replacement, any welding components when the dial plug and cable, power supply must be
OFF.
a) BULK capacitor needs to discharge
b) can not be touched once after power on
1.2 anti-static measures (the entire production process must be anti-static!)
a) can not easily touch the IC;
b) an anti-static iron;
c) welder must wear anti-static gloves.
1.3 replacement of components that have special safety requirements, reference list should not be
free to change specifications and models.
1.4 Test and verify the board must use the matching accessories (power board, keypad, etc.), if you
use other accessories need to carefully confirm the correctness of the connection.
1.5 board storage, the use of temperature and humidity are as follows, be sure to strictly follow
the implementation:
Storage temperature / humidity: -40 ~ + 85 ℃ <= 95%.
Temperature / humidity: - 1 0 + 60 ℃. <= 95%
Note: Observe the safety instructions as described above when servicing this motherboard.
2. the main function:
1. Supports SD and HD resolutions (480P / 576i / 720p / 1080i / 1080P);
2. Low standby power (≤ 0.5 W)
3. Input/Output ports:
CV512H-U42 Service Manual
OUTPUT
Audio Out (L,R)
1
EARPHONE (L,R)
1
ANTENNA
CVBS2
HDMI2 WITH MHL
RGB
4 M Byte
DVB-T2/T/C/S2
S2T512
R/L Audio
VGA(PC)
IR/KEYPAD
INTERFACE
Dual LVDS 10BIT
SPDIF
USB 2.0*2
CODE FLASH
USB*2
CI_CARD
YPBPR*2
MP7752
LINE_OUT
AV1&2
1920x1080
TS X8
I2C
CI_DATA X8
CI_ADD X12
PANEL
H/VSYNC
CATS X8
CVBS1
YPBPR1
EARPHONE
LINE_OUT
RDA5160
HP_L/R
HDMI*3
LINE_IN x 3
HDMI1 WITH ARC
IF/IQ
DVD R/L
SCART R/L
PC R/L
AV1 R/L
CVBSOUT
CVBSOUT
DIO1717
SPDIF
SGM331
DVD YPbPr
Scart RGB
HDMI3
RDA5815M
IF_IN/IF_IP/IF_QN/IF_QP
4. 32 bit processor, built 128MB DDR3;
5. Support USB software upgrade;
3. the basic working principle:
(1) analog signal flow:
Signal received by the antenna into the TUNER (UT1, RDA5160; U27, RDA5815), SOC
(U7 S2T512) by the TUNER I2C control, frequency selection, setting IF bandwidth, the amplitude of
the intermediate frequency signal is provided. TUNER output IF signal into the SOC internal
demodulation and decoding, and ultimately converted into video and audio signal display.
(2) Basic block diagram:
(3) Power composition：
CV512H-U42 Service Manual
3.3VU(75mA)5VU
LP3992
FOR S2T512
220V AV~
TPS563201
12VU
SMPS
TLV62565
12VU(1000mA)
TLV62569
3118e
LP3983
1.24V(1970mA)
FOR S2T512
FOR DDR
FOR S2T512
3.3VA(280mA)
220mA
1.5VA(215mA)
FOR RDA5815
155mA
FOR RDA5160
AMP
S2
T2/T/C
FOR LNB
带DVD功能上4A DCDC
FOR flash
500mA
TPS2065DDBVR
FOR ANT
3.3V_TUNER
FOR USB
TPS2065DDBVR
EN
GV3407
FOR DVD
GV3407
S805安卓小板
FOR PANEL
GV3407
0R
0R
1000mA
1000mA
500mA
5VU
EN
EN
3.3VA
900mA
FOR MHL
SGM2588
12VU
5VU
3.3VA
FB2
FB120R/ 3A
NC
CD2 10uF/6. 3V
CD6 10uF/6. 3V
RD4
12K_1%
CD3 10uF/6. 3V
12VU
CD4 10uF/6. 3V
CD5 100nF/16V
CD9 100nF/ 16V
TP1
5VU
1
5VU
UD1
TPS563201
VBST
6
GND
1
VFB
4
EN
5
VIN
3
SW
2
RD2 100K
RD1
68K_1%
3A
CD8 10uF /16V
CD1 100nF/16V
R2
R1
Vout=0.768*(1+R1/R2)
LD1
4.7uH/ 6A
RD3 NC/18K
NC
+12V
+5V_Standby POWER 3A
CV 512H-U50 power architecture of FIG.
(4). Specific circuit analysis
(a) 12V 5V switch circuit :
CV512H-U42 Service Manual
CD17
NC/100nF/ 16V
1V_EN
UD2
TLV62569
IN4SW
3
GND
2
EN1FB
5
CD12 10uF/6. 3V
CD10 10uF/6. 3V
CD14 100nF/ 16V
RD6
13K_1%
RD510K
LD2 2.2uH/ 2.2A
CD11 100nF/16V
RD8
12K_1%
CD13 10uF/6. 3V
R2
R1
V_1V
5VU
Vout= 0.6*(1+R1/R2) 2A
RD7
NC/51K
CD16 NC/1uF/6.3V
CD15 NC/1uF/6.3V
1V System Power 2A
TP6
V_1V
1
TPS563201 TI is smaller DC-DC power devices, SOT23- 6 package, the chip has the following main
characteristics:
Input voltage range: 4.5V - 17V
Output Voltage Range: 0.768V - 7V
TPS56X201 is a series of common materials, which number represents the X device can
support a maximum average current
Cycle-by-cycle current protection
A typical soft-start time 1mS
Hiccup mode overcurrent protection
Non-latching undervoltage and overtemperature shutdown protection
Through the TPS563201 features, we need to pay attention to the maintenance of the following:
Although it is a series of devices, as recommended by the replacement of BOM item
number, if you really need to use when high-profile replacement, it is recommended to replace the
use of adjacent specifications, in order to avoid circuit operates at light load mode, resulting in
excessive ripple at the time of replacement.
When output short circuit or overcurrent, the circuit will hiccup mode (typically 15mS) in
the form of work.
In the internal OVP circuit, the output will be limited to 7V, which requires special attention,
because in the re-welding process, the FB may pull the resistor short-circuit or pull-down resistor,
so that the circuit output will be limited to 7V, for the current 5V systems, will be able to make the
whole system work, but this is a wrong mode of operation. Recommended after welding need to
confirm the correctness of the output of 5V.
Undervoltage and thermal shutdown are non-latched, that is to say in the removal of these
failures, the circuit can automatically return to the normal state (do not restart the state).
(B) 5V core transfer +1.25V voltage:
CV512H-U42 Service Manual
Vout= 0.6*(1+R1/R2)=0.6*(1+100K/22K)=3.33V
3VA_EN
CD20 10uF/6. 3V
CD22 100nF/ 16V
UD3
BL8026+TLV62565+SY8088
IN4SW
3
GND
2
EN1FB
5
RD9 100K
CD18 10uF/6. 3V
CD19 100nF/16V
RD10
100K_1%
CD21 10uF/6. 3V
LD3 6.8uH/ 1.8A
TP2
3.3VA
1
RD12
22K_1%
R2
R1
3.3VA
5VU
1A
RD11 NC/51K
CD24 NC/ 1uF/ 6.3V
CD23 NC/ 1uF/ 6.3V
CD28NC/10uF/6.3V
NC
3.3V System Power
TI TLV6259 to DC-DC power small devices, SOT23-5 package, the chip mainly has the following
characteristics:
Input voltage range: 2.5 V - 5.5 V
A typical soft-start time 800uS
Overcurrent protection
Overheat shutdown protection
By TLV62569, when we need to pay attention to the maintenance of the following:
Although the device has a PIN to PIN other brand model, as recommended by the BOM item
number replaced, so the circuit in light load mode, resulting in excessive ripple at the time of
replacement.
Undervoltage and thermal shutdown are non-latched, that is to say in the removal of these
failures, the circuit can automatically return to the normal state (do not restart the state).
(C) 5 VU turn 3.3VA
TLV62565 TI is smaller DC-DC power device, SOT23-5 package, the chip mainly has the following
characteristics:
Input voltage range: 2.7 V - 5.5 V
A typical soft-start time 250uS
Overcurrent protection
Overheat shutdown protection
By TLV62565 characteristics, we need to pay attention when maintenance is as follows:
Although the device has a PIN to PIN other brand model, as recommended by the BOM item
number replaced, so the circuit in light load mode, resulting in excessive ripple at the time of
replacement.
Undervoltage and thermal shutdown are non-latched, that is to say in the removal of these
failures, the circuit can automatically return to the normal state (do not restart the state).
CV512H-U42 Service Manual
RD15
51K_1%
RD16
47K_1%
R1
R2
Vout= 0.8*(1+R1/R2)=1.537V
3.3V STANDBY POWER
3.3VU
C17 10uF/6.3V
0
5VU
C18 100nF/16V
0
C16
100nF/16V
0
CD25 10uF /6.3V
0
UD5
LP3992-33B5F
VIN1VOUT
5
GND
2
EN3ADJ
4
CD26 100nF /16V
0
CD27 100nF /16V
0
TP9
1.5VA
1
3.3VA
1.5VA
TP4
3.3VU
1
UD4
LP3983SAB5F-08
VIN1VOUT
5
GND
2
EN3ADJ
4
1.5V DDR Power
CD29
22pF/50V
0
(E) CMOS circuit
LP3992 ordinary CMOS device, SOT23-5 package, 5V 3.3V
input output; LP3983 COMS device is adjustable, SOT23-5 package, 3.3V input, regulating
resistor (R1, R2) to the output of 1.5V to the DDR.
LP3992 the following features:
Input voltage range: 2 V - 5.5 V
Output current of 300mA; 550mA peak current
Overcurrent protection
Overheat shutdown protection
50uS fast open
LP3983S features are as follows:
Input voltage range: 2V - 6 V
Output current 400mA; peak current 550mA
Overcurrent protection
Overheat shutdown protection
20uS fast open
(F) Tuner
DVB-T2 / T / C
CV512H-U42 Service Manual
provides 20dB of attention over t he 24~30MHz
band giving margin against EN55020 type E tests
If CB Trap is not required, CT5=0R;LT4/CT11=NC
CB Trap
T_SDA
UT1
RDA5160
T2_S
GPIO21SDA2SCL3AGC24AGC15GND
6
VDDL
7
GND
8
VDDH
9
LIF_N
10
LIF_P
11
XOUT
12
XTAL_I
13
XTAL_O
14
VDDH
15
GND
16
VDDH
17NC18
RF_R EF
19
RF_I P
20
GND
21
RF_I N
22
ADDR
23
GPIO1
24
PAD
25
T_SCL
绿色粗线要求75欧姆阻抗
CT8
100nF/16V
T2_S
CT10
100nF/16V
T2_S
RDA5160_EUROPE
CT2
NC
CT9 39pF/ 50V
T2_S
CT1
NC
LT7
270nH
T2_S
LT6
270nH
T2_S
LT3
270nH
T2_S
LT2
270nH
T2_S
CT11 1.2nF/ 50V
T2_S
XT1
24MHz/10PF/20PPM
T2_S
1 2
DT1
BAV99
T2_S
1
2
3
LT5
270nH
T2_S
RT1 0R
T2_S
CT12 1uF /6.3V
T2_S
CT7 39pF/ 50V
T2_S
CT3
1.2nF/ 50V
T2_S
VAGC
VON
VOP
1
带馈电，
CT5 贴1nF
电容；
Address:
Read=C1
， Write=C0
2
不带馈电，
CT5 贴0R
电阻；
CT8
上件说明
LT4
180nH
T2_S
RF_I N
CT5
1nF/50V
5V FEED 1nF&NO 5V FEED 0R
CT13
180pF/50V
T2_S
GND
GND GND
RF
GND CNT1
RF_J ACK
Silicon Tuner
T2_S
RF
1
2
2
3
3
4
4
5
5
CT6
47pF/50V
T2_S
LT1 220nH
5V FEED
5V_Antenna-TU
CT4
100nF/16V
5V FEED
+VDD3V
1V8_RF
+VDD3V
RDA5160 is a support global analog and digital terrestrial and cable tuning standard IC, generally
works as follows:
Digital and analog signal RF head (CNT1 is) passing through the filter capacitance and
inductance coupling, RDA5160 into the LNA (low noise amplifier) amplifies.
The SOC selected frequency (LO) via I2C control RDA5160, disposed IF bandwidth.
SOC control by controlling the amplitude of the IF AGC, and this point should be noted that:
AGC vary during the station search, the search platform will be completed at a fixed value, but this
time the amplitude of the intermediate frequency internal RDA5160 is adjustable.
RDA5160 internal block diagram as follows:
Input frequency range: 42 MHz-1002MHz
IF may be set 6MHZ, 7MHz, 8MHz
Built-in 1.8V LDO, to note that the built-in 1.8V output requires software to control output.
I2C can configure multiple addresses.
The main features of the chip are as follows:
CV512H-U42 Service Manual
Line width=15mil
IF_QN
IF_QP
R303 51R
S2_S
C308
2.7pF/50V
S2_S
IF_IP
L16
5.6nH
S2_S
Trace1=32mm
LNB_POWERLNB_POWER_ET
RDA5815
QFN20
U27
RDA5815
S2_S
XOUT
8
VDD
11
XTAL2
9
BBIP
12
GND
20
VCC
16
BBQP
15
BBIN
13
AGC
5
XTAL1
10
PAD
21
VCC
19
GND
7
BBQN
14
LOOP
3
ADD
4
XOUT_EN
6
GND
2
RFIP
1
SDA
17
SCL
18
S2_3V3
C219 100nF/ 16V
S2_S
C242
27pF/50V
S2_S
IF_IN
C220 100nF/ 16V
S2_S
C285 100nF/ 16V
S2_S
L15
5.6nH
S2_S
C303
100pF/50V
S2_S
LNB_POWER
R190 100R
S2_S
R191 100R
S2_S
SCL_RF1
C299
2.2pF/50V
S2_S
SDA_RF1
LNB_PW_ET
C237
27pF/50V
S2_S
S2_3V3
R198 0R
S2_S
X2
27MHz/20PF/10PPM
S2_S
1 2
3
J18
RF_JAC K_THREAD
S2_S
1
234
5
close to Tuner pin
C213 100nF/ 16V
S2_S
C248 100nF/16V
S2_S
C22110pF/50V
S2_S
C306
1nF/50V
S2_S
C22210pF/50V
S2_S
C243
33pF/50V
S2_S
C22910pF/50V
S2_S
C23010pF/50V
S2_S
C307
1nF/50V
S2_S
C295
1nF/50V
S2_S
R288 1K
S2_S
RF_AGC
C302
2.2nF/50V
S2_S
C246
33pF/50V
S2_S
R304 51R
S2_S
C282
100pF/50V
S2_S
C214 100nF/ 16V
S2_S
R305 51R
S2_S
R306 51R
S2_S
U1
JW4005
S2_S or S2_ C
SW
1
VO
2
ISET
5
13/18V
7
FAULT
4
EN/EXTM
6
LDROP
8
LNB
3
GND
9
12VU
L1 6.8uH/ 1.8A
S2_S or S2_ C
R7
NC
NC
D9 SS14
S2_S or S2_ C
1
2
D4 SS14
S2_S or S2_ C
1 2
D11 SS14
S2_S or S2_ C
1
2
LNB_POWER
C6 10uF/16V
S2_S or S2_ C
C11 100nF/16V
S2_S or S2_ C
C5 10uF/16V
S2_S or S2_ C
FAULT
C13 10uF/ 25V
S2_S or S2_ C
C12 10uF/ 25V
S2_S or S2_ C
C14 1uF/25V
S2_S or S2_ C
R15
10K
S2_S or S2_ C
LNB-13/18V
R13 NC
NC
LNB-LDR OP
R12 200K
S2_S or S2_ C
DISEQC _OUT
R14
10K
S2_S or S2_ C
D10 4148
S2_S or S2_ C
2 1
LNB-EN
DVB- S2 (not used)
RDA5815 is a support for the global digital satellite signal tuning IC, the general work process is as
follows:
Digital and analog signals through the RF head (J2), after capacitive coupling filter, into the
RDA5815 LNA (low noise amplifier) to enlarge.
SOC through the I2C control RDA5815 frequency selection.
SOC through the AGC control control the amplitude of the frequency, which need to be
noted that: AGC in the search process will change, after the completion of the search station will
be fixed at a value, and this time the amplitude is RDA5815 internal adjustment.
RDA5 815 internal block diagram is as follows:
CV512H-U42 Service Manual
12V供 电 ----2X8W
ZX1
SHORT
CA21 100nF/16V
CA7
NC/1nF/ 50V
NC
RA1
NC/10R
NC
AMP_ROUT+
RA48 NC/0RNC
靠近主IC端
RA3 NC/100K
CA19 220nF/16V
UA1
RDA3118e
SD
1
NC
13
PBTL14PVCC4
15
PVCC3
16
BSP1
17
OUTP1
18
PGND1
19
OUTP2
20
BSP2
21
BSN1
22
OUTN1
23
PGND2
24
FAULT
2
LINP
3
LINN
4
GAIN0
5
GAIN1
6
AVCC
7
AGND
8
GVDD
9
PLIMIT
10
RINN
11
RINP
12
OUTN2
25
BSN2
26
PVCC2
27
PVCC1
28
PAD
29
LA4 NC/22UH/ 1.11A
AMP_FILTER = '02'
CA17 220nF/16V
LA1 NC/22UH/ 1.11A
AMP_FILTER = '02'
CA4 220nF/ 16V
FBA4 FB1K/1.5A0
AMP_FILTER = '01'
CA12 220nF/16V
JA1
XH-4A-SPK_BTL
ROUT+
1
ROUT-
2
LOUT-
3
LOUT+
4
CA8 220nF/16V
FBA2 FB1K/1.5A0
AMP_FILTER = '01'
CA6
220nF/16V
CA22 1nF/50V
RA7 20K
LA3 NC/22UH/ 1.11A
AMP_FILTER = '02'
LA2 NC/ 22UH/1.11A
AMP_FILTER = '02'
CA13 1uF/16V
RA4 10R 1/10W
AOUT1R_G
CA3 1nF/50V
FBA3 FB1K/1.5A0
AMP_FILTER = '01'
FBA1 FB1K/1.5A0
AMP_FILTER = '01'
ZX2
SHORT
CA14 1uF/16V
CA10 1uF/16V
AOUT1L_G
RA8 10K
CA11 220nF/16V
CA18 220nF/16V
+12V_AMP
+12V_AMP
+12V_AMP
AOUT1R
红色圈起来的两组电容靠
近功放的距离基本相同
AOUT1L
AMP_LOUT+
TPA3120_SD
靠 PIN27,28放
网 络 AOUT1L和 AOUT1L_G必 须走差分
网 络 AOUT1R和 AOUT1R_G必 须走差分
CA1 100nF/16V
CA15
NC/1nF/ 50V
NC
RA6
NC/10R
NC
AMP_LOUT-
AMP_ROUT-
CA24 100nF/50V
CA23 100nF/50V
SPK_L
SPK_R
AOUT1RSPK_R
SPK_L
AOUT1L_G
AOUT1R_G
参数根据芯片方案而定,靠近主IC摆放
AOUT1L
TPA1
+12V_AMP
1
RA12 NC/10K
NC
DA1 0R
1 2
+
CA25 470uF/16V
12VU
+12V_AMP
CA5
3.3nF/50V
CA9
3.3nF/50V
CA16
3.3nF/50V
CA20
3.3nF/50V
AUDIO AMP
The main features of the chip are as follows:
Input frequency range: 250MHz-2150MHz
I2C can configure multiple addresses.
(g) Audio amplifier (AMP)
RDA3118e - a digital power amplifier chip, which PINs are defined as
follows:
CV512H-U42 Service Manual
Each function pin is described as
follows:
CV512H-U42 Service Manual
3.3VU
R5 10K
0
R6100K
0
PHONE OUT
Audio_L
Audio_R
GND
J2
PHONE JAC K_PJ-325
0
1
2
3
4
5
D2NCD1
NC
PHONE_L
PHONE_R
D3
NC
C3
22nF/25V
0
HP_L
HP_R
C2
22nF/25V
0
R2 100R
0
R1 100R
0
C4 10uF /6.3V
0
PHONE_L
C10 10uF/6. 3V
0
PHONE_R
R31K0R41K
0
CA2
100uF/16V
NC
D8
NC
1
2
D6
NC
1
2
5V_USB
USB0-D+
5V_USB
USB1_DM
USB0-D-
USB1_DP
USB1-D-
USB0_DM
D5
NC
1
2
D7
NC
1
2
USB0_DP
5VA
5V_USB
C20
10uF/6. 3V
0
USB0_DM <11>
USB0_DP <11>
C22
100nF/16V
0
GND
GND
GND
+5V
DM
DP
J5
USB-H
Singal USB
1
1
2
2
3
3
447
5
6
6
USB1_DM <11>
USB1_DP <11>
J3
PH-4A
Internal USB
1
2
3
4
J4
USB2.0-H _2A
NC
USB1_PWR
1
USB1_DM
2
USB1_DP
3
USB1_GND
4
USB0_PWR
5
USB0_DM
6
USB0_DP
7
USB0_GND
8
shield_GND
9
shield_GND
10
shield_GND
11
shield_GND
12
5V_USB
USB0-D-
USB1-D+
USB1-D-
USB0-D+USB1-D+
5V_USB
3.3VU
R10
10K
NC
L:ON
H:Standby
PowerON
5VU
5VA
UD6
TPS2065DDBVR
0
VOUT
1
GND
2
#FLG
3
EN
4
VIN
5
C7 1uF/ 6.3V
0
R8
10K
0
1V_EN
C15 10uF /6.3V
0
PowerON
1V_EN
C8
100nF/16V
0
R9
NC/ 0R
NC
FB3
FB120R/ 2A
NC
TP5
5VA
1
5V Switch Power
(H) EARPHONE
(I) USB
USB2.0 standard 500mA, the current limit is set to 1A; TPS2065DDBVR limiting 1A, with
overcurrent protection.
(J) MINI AV IN
CV512H-U42 Service Manual
Audio_R
Audio_L
GND
CVBS
J8
MINI AV_PJ-320A
Mini AV
4
3
1
2
MINI AV Input
AV1_R_IN
AV1_L_IN
CVBS1_IN <11>
AIN2L
AIN2R
CVBS1_IN
AIN2R <11>
AIN2L <11>
AV1_IN
R64 150R
Mini AV
R65
75R
Mini AV
C74 220nF/16V
Mini AVC59
22nF/50V
Mini AV
C77
22nF/50V
Mini AV
C130
220pF/50V
Mini AV
C123
220pF/50V
Mini AV
R69 33K
Mini AV
R49 33K
Mini AV
PR
PB
GND
Y
J11
MINI YPBPR_PJ-320A
Mini YPBPR
4
3
1
2
R91
75R
Mini YPBPR or YPBPR2
R92
75R
Mini YPBPR or YPBPR2
Y_PB
Y_PR
R154 330R
Mini YPBPR or YPBPR2
Close IC
R160 150R
Mini YPBPR or YPBPR2
Y_I N
R86
75R
Mini YPBPR or YPBPR2
C191 47nF/25V
Mini YPBPR or YPBPR2
C190 47nF/25V
Mini YPBPR or YPBPR2
C109 47nF/25V
Mini YPBPR or YPBPR2
C110 47nF/25V
Mini YPBPR or YPBPR2
R93 150R
Mini YPBPR or YPBPR2
PR2_IN <11>
PR2_IN
R94 150R
Mini YPBPR or YPBPR2
PB2_IN <11>
PB2_IN
SOY2_I N
SOY2_I N <11>
YPbPr Input
Y2_I N <11>
Y2_I N
Y_IN
Y_PB
Y_PR
Y
GND
GND
GND
PB
PR
J7
AV3-8.4-5MF_Y PBPR
RCA Y PBPR
6
4
5
3
2
1
YPBPR
HS_VGA <11>
VS_VGA <11>
TXD0/VGA_SDA <11>
RXD0/VGA_SCL <11>
R296 1K
0
R298 1K
0
PC Analog Input
D54NCD56
NC
AIN1L
SCL_VGA2
SDA_VGA2
R291100R
0
R295100R
0
Close IC
R293
75R
0
R292
75R
0
R294
75R
0
AIN1R
Audio_L
Audio_R
GND
J20
PHONE J ACK_PJ-325
0
1
2
3
4
5
D61
NC
R
G
B
GND
GND
GND
GND
GND
GND
GND
SCL
SDA
H
V
NC
NC
NC
J22
VGA
0
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
16
17
R289 33K0
R280 33K
0
D47NCD53
NC
D58
NC
PC Audio Input
D60NCD59
NC
D62NCD57
NC
R301
10K
0
D55
NC
R300
10K
0
R286150R
0
R282
4K7
0
R283
4K7
0
5VU
C292
33pF/50V
NC
C293
33pF/50V
NC
PC DDC
R285150R
0
RXD0/VGA_SCL
R284150R
0
C296
22pF/50V
NC
R_IN
R_IN <11>
C297
22pF/50V
NC
G_IN <11>
G_IN
VS_VGA
HS_VGA
TXD
C195 47nF /25V
0
C194 47nF /25V
0
C193 47nF /25V
0
B_IN <11>
B_IN
RXD
AIN1L <11>
AIN1R <11>
SCL_VGA2
SDA_VGA2
R299 100R
0
R297 100R
0
RXD
TXD
(K) Ypbpr IN (compatible with RCA YPbPr2)
(L) VGA +Audio IN (for external Debug)
(M) SCART (compatible RCA AV1, RCA AV OUT)
CV512H-U42 Service Manual
C245
22nF/25V
SCART&AV-OUT
AU_RIN
GNDB
GNDVI
AIL
BIN
VOUT
FunSel
VIN
GNDG
SHILED
N.C.
GIN
N.C.
GNDR
RIN
AOR
AIR
RGBSW
AOL
GNDSW
GNDA
GNDVO
CN2
SCART-104B
SCART
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
AU_LIN
R259
75R
SCART
R260
75R
SCART
D45
NC
LINEOUT_L <11>
LINEOUT_L
LINEOUT_R
LINEOUT_R <11>
D36
NC
SC1_VIN
SC1_RIN
C271
470nF/10V D VD/0R N ODVD
DVD(470nF)/ SCART(0R)
C273
470nF/10V D VD/0R N ODVD
DVD(470nF)/ SCART(0R)
Y1_IN _D
PR1_IN_D
PB1_IN_D
C272
470nF/10V D VD/0R N ODVD
DVD(470nF)/ SCART(0R)
SC1_AU_LIN
R268
75R
SCART&AV1
D41
NC
CVBS0_IN <11>
CVBS0_IN
D40
NC
Close IC
R273 33K
SCART&AV1
SCART_SOG
SC1_FS SC ART1_FUNSEL
SC1_BIN
SC1_GIN
SC1_RIN
SC1_AU_ROU T
R155 150R
SCART&AV1
SC1_FB FSCART_FB
SC1_VIN
SC1_AU_LOUT
C234 47nF/25V
SCART
R256 33K
SCART&AV1
C192 220nF/16V
SCART&AV1
D44
NC
R248 330R
SCART&AV-OUT
D42NCD43
NC
C277 1uF/ 16V
SCART&AV-OUT
SCART1 Input
C276 1uF/ 16V
SCART&AV-OUT
SC1_BIN
R247 330R
SCART&AV-OUT
D38
NC
GND_HSAD C
SC1_AU_LOUT
SC1_AU_ROU T
SC1_GIN
R187 150R
SCART
SC1_AU_RI N
SC1_VOUT CVBS_OUT
D46
NC
C240
22nF/25V
SCART&AV-OUT
R261
75R
SCART
R220
75R
SCART&AV-OUT
D12
NC
CVBS_OUT
CVBSO
<11>
CVBSO
CVBS Output
SCART FUNCTION SEL
R250
75R
Scart
SCART FAST BLANKING
R99
6K8
Scart
SCART_FB
SCART_FS
SCART_FB
SCART_FS <11>
SCART_FB <11>
NOTE:0~2V ->0~ 0.314V (TV MODE)
5~8V ->0.785~1.255V (16:9 AV MODE)
8.8~12V ->1.38~1.883V(4:3 AV MODE)
SCART_FS
C107
100pF/50V
Scart
D37
NC
D35
NC
C102
NC/ 100pF/50V
NC
FSCAR T_FB
SCART1_FU NSEL
0-0.4V CVBS
1-3V RGB
Scart Function switch
R100 220R
Scart
R251 22K
Scart
R171
4K7
NC
DVD & S805
R212
10K
DVD
C210
22pF/50V
DVD
DVD_STB
R164
10K
NC
3.3VA
R177
4K7
DVD
C228
100nF/16V
DVD
12VA
5V_DVD
C212
100nF/16V
DVD
DVD_IR
DVD_AUTO
R172 100R
DVD
R174 100R
DVD
J15
PH-8A_DVD POWER
DVD
DVD_STB
1
DVD_AUTO
2
DVD_IR
3
+12V
4
GND
5
GND1
6
+5V
7
+5V1
8
DVD_ON/ OFF
R169 100R
DVD
C203
100nF/16V
DVD or S805
R158 200K
DVD or S805
R163 10K
DVD or S805
12VU
Q10
3904
DVD or S805
1
2
3
12VA
R146
47K
DVD or S805
Q11 GV3407
DVD or S805
3
1
2
C208
100nF/16V
DVD
C206
100nF/16V
DVD
R176
4K7
NC
Q4
3407
DVD
3
1
2
TP7
5V_DVD
1
5VU 5V_DVD
TP8
12VA
1
(N) DVD features
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