JVC TH-P3A Service Manual page 40

Micon section (1/2)
TO DVD
LVA10643-A1 (1/2)
MAIN PWB
IC494 KIA78S09P-T
R4091
10 11.2V 8.9V
3 1
1/4W
2
0V
A9V REG
CN401
QGD2501C1-07Z
-14.6V
F+
1
-18.9V
F-
2
-21.0V
-VDISP
3
6.0V CP471
B5.6V D4845 !
4 SHORT
1SS355W-X
0V B5V
DGND 5
0V
DGND
6
D4846
6.0V D5V
D5.6V
7
ER204-F33
R4904
100
CN403
QGD2501C1-07Z 2W
9.4V
M9V 1
11.7V
12V
2
0V
MGND
3
0V
AGND
4
5.2V
SYS_P.ON
5 D3.3V REG
1.6V
THERMISTOR
6
C4014 IC492
PROTECT
7
MM1593DF-X
C4922
0.001 470p/50
1.9V
5.2V
CONT CN
0V
NC GND
NC NC
5.1V 3.3V
VIN VOUT
C4921
C4923
1/16
1/10
CN404
C4924
QGD2501C1-06Z
100/16
C4015
33.0V
+33V
1
33.0V
+33V 0.001
2
33.0V
+33V
3
0V
PGND
4
0V
PGND
5
0V
PGND
6
FOR FLASH
SCLK
U2SDT
S2UDT
RESET
VDD
DGND
0V CR-R-C
CR/COUT
1 SAFETY2
0V
DGND
2 DETECT
0V CB-B
CBOUT
3
0V
DGND 4
0V Y2-G
Y/G OUT
5 R4902 R4903
0V
DGND
6
0.4V Y1 8.2k 10k
YOUT
7 K4702
ER204-F33
5.1V
S5V 2.3V QQR0621-001Z
8
0.9V C
COUT
9 D4841 5.2V K4701
4.3V Q4832
D4V
10 R4782
2.2V
1SS355W-X KTC3875/YG/-X
D2V 3.1V
11
3.1V
D2V
12
IC473
SN74AHCT08NS-X
TX
13
0V
MGND
14
0V C4925 0V
MGND D4842
15 0.1/50
MA152WA-X
0V
RX
16
5.1V
M5V 17
9.4V 0V
M9V
18
5.2V DVD_PWR
DVDPWR 3.3V
19
3.3V
U2SDT 5.0V
20
R4866 2.7K
3.4V DVD_S2UDT
0V
S2UDT 21
3.4V R4864 330
SLCK
22
3.4V R4863 2.2K DVD_SCS
SCS
23
UCS 3.4V
24
R4861 2.2K
3.4V DVD_RST
CPURST
25
LEVEL SHIFT
IC493 LB1641
1 2 3 4 5 6 7 8 9 10
LO_CLOSE
0.5V C4794 LO_OPEN
C4793
TRAY+(OPEN) 1
0.5V 0.1/16 100/16
C4017
TRAY-(CLOSE)
2 150p/50
0.5V
D4966
MGND
3
UDZW4.7B-X
LO_SWOP
OPENSW 0V
4
LO_SWCL
CLOSESW 0V
5
LOADER DRIVE
TO VIDEO PWB
D4836
MA152WA-X
A5V REG 2
SAFETY1
1
DETECT
3
IC491 D4840
D4838
KIA7805API
D4832
11.6V 1SS355W-X 1SS355W-X 1SS355W-X
4.9V
1 3
2
D4831
4.7V
0V MA152WA-X
0V
Q4831
KRC102S-X
D4848
0V
1SS355W-X
P1 P3
P2
* *
0V
A/D GND
5.2V
NTSEL (RGBSEL)
R4774
5.2V
*
SP_MEAS
C4775 0V
0.01/50
VERSION1
R4771
2.1V
*
VERSION2
R4773
5.2V
*
C4771 KEY1
0.1/16 5.2V
KEY2
C4772
1.5V
0.1/16
SAFETY4
C4773
1.6V
0.1/16
C4774 SAFETY5 SAFETY5
0.1/16 5.2V
AD POWER IC471
5.2V
VDD
MN101C49GPT
C4708 2.6V
OSC2 (8MHz)
0.01/50
2.6V
OSC1 (8MHz)
0V
GND SYSTEM MICOM
0V
8MHz XI
XO
0V
NMOD
R4872 330
DI_DT 4.9V
DI_DT
NC
R4871 330
DI_CK 5.1V
R4760 DI_CK
2.2k 5.1V
R4761 DVD_S2UDT /TX
10k R4875 5.1V
R4762 470 DVD_U2SDT /RX
10k 5.1V
R4877
470 DVD_CK /CLK
DVD_SCS 5.0V
DVD_SCS
DVD_RST 5.0V
DVD_RST
6
5
4
3
R4876
2
330
DVD_UCS
1
CN415
NI
R4999 NI
NI (FOR FLASH)
0
AC OFF
DETECT C4707
R4791 100/16
5.0V
5.0V 220
3.3V
5.0V
R4705
5.0V
3.3V 22k R4702
1K
5.0V
2 1
RESET IC472 EEP ROM
S-80840CNNB-G-W
3 4
CN422
CN421
QGF1205C2-13 QGD2501C1-05Z
TO CN501 FRONT/FL TO CN511 KEY
*
R4846
10k
4.3V
SD
0V
NC
R4706
NC
220
5.2V
AVC_IN
0V
R4202
AVC_OUT
UNF 10
0V 220
BLANK
R4708
0V 11.8V 1/4W
VS3
0V 11.8V Q4202
VS1
KRA102S-X
5.2V
V_MUTE2
0V
5.2V
V_MUTE1
0V
V_LPF
5.2V
V_RGB
0V 11.6V
V_YCMIX
NC
0V
0V
A_LEVEL
0V Q4201
A_SW2 0V
0V
A_SW1
R4781 330
KRC103S-X
0V
RDS_ON
330 B,E,EV,EN,EE :
0V R4775
TU_CE
0V R4777 100
TU_DTI
0V R4778 100
TU_DTO
R4776 330
0V
TU_CK
5.2V
VALID2
5.2V
VALID1
0V
PWM_BEERR
R4710
100k
8 7 6 5
IC477
BR24L08F-W-X
1 2 3 4
NOTES:
1.VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER
OR OSCILLOSCOPE WITHOUT INPUT SIGNAL.
CONDITION POWER-ON. SOUCE:DVD STOP.
2.UNLESS OTHERWISE SPECIFIED.
ALL RESISTANCE VALUES ARE IN OHMS.
ALL INDUCTANCE VALUES ARE IN H.
ALL CAPACITANCE VALUES ARE IN F. P IS pF.
TO DVD
0V
Q4601
KRC110S-X
3.1V
0V
IC461
AK5358ET-X
C4610
10/50
AINR CKS0
0.5V 0V
C4609
AINL CKS2
0.5V 3.3V
C4608 10/50
470p/50
CKS1 DIF
C4607 0V 0V
470p/50
C4603 VCOM PDN
0.47/16 0V 0V
R4605
AGND SCLK
C4601
0V 1.6V 100
VA MCLK
22/50 C4602 4.9V 1.6V
C4606 0.1/16
R4606
0.1/16
VD LRCK
3.3V 1.7V 100
R4602
DGND SDTO
1 C4604 C4605 0V 0V 100
22/50 0.1/16
R4601
100
R4604
A/D CONVERTER
FAN
DRIVE
Q4203
KTC3203/OY/-T
FAN MOTOR STOP DETECTOR
11.8V 0V
4.7V
NI
0V D4204
0V
NI 1SS355W-X
0V
0V
D4203 NI
R4208
RB521S-30-X 100 0V
0V
NO USE NO INSERT (EXCEPT B4001)
*PARTS LIST
P3 P5
E
E U1 U2 U3
8.2k
R4752 P-UP X 27k 15k X
VERSION1
(VERSION)
R4771 P-DOWN 10k 10k 10k 10k 10k
R4763 P-UP X 15K
VERSION2
(MODEL)
R4773 P-DOWN 10K 10K
P-UP
R4751 10k 10k X 10k X 10k X 10k
(PAL/RGB)
NTSEL
1.5V
SAFETY5 /RGBSEL
5 P-DOWN X
R4774 X X 10k X 10k X 10k
1.4V (NTSC/YC)
SAFETY4
4 FOR
0V
AVCO DEVICE KEY FAN X X
3
0V
BGND WRITING
2
CN417 X X
5.2V
1 AVCI
FAN DRIVE
X
R4848 X
R4887 X X
X
R4888
E : B/E/EN/EV/EE
U1(PAL) : A/US/UB/UF/UG/UN
(NTSC): UT/UP/UJ
U2(PAL) : UY
(NTSC): UW
U3(PAL) : UX
* FAN
*
0V
3 3
0V
2 2
0V
1 1
DACCK+
DACCK-
LRCK
AOUT2
AOUT1
AOUT0
BCK
PWM_MUTE
PWM_DT
PWM_CK
PWM_RST
SP_MEAS
PWM_BEERR
VALID1
VALID2
SD
OTW
HP_DET
HP_MUTE
SAFETY5
BGND
EP101
A+12V
+33V
PGND
D3.3V
SAFETY3
B5V
P7
U1 U2 U3
E
27k 15k
X 8.2k
10k 10k 10k 10k
10K
X
10k 10k X 10k X 10k X
X
X X 10k 10k X 10k
X
X
X
X
X
2-3