System Control Section - JVC DD-8E Service Manual

System control section

TO LAN PWB
LVA10679-A1
LVA10677-A1 (2/2)
MICOM PWB
R4801
D4801
2.2
10EDB20-T4
2W
D4804
10EDB20-T4
22k
R4509
KTC3875/YG/-X
Q4505
4.8V
0V
R4508
CLIMIT1
22k
VH
R4507
22k
FLPOWER
FLGND
US5V
S5V
SAFETY1
GND
FDVD
SW6V
C4154
SAFETY2
NI
GND2
R4201
M9V
MGND
F+
F-
SAFETY3
A12V
A6V
AGND
CLK
U2SDT
S2UDT
RESET
VDD
DGND
CN401
QGF1205C2-06
Q4501
C4251
NI
2
Q4502 R4501
NI
1 NI
FAN_SW1 4.75V
FAN_SW2
CN453 R4502
NI NI
C4501
NI
IC425
QNZ0136-001Z
TO DVD
DD1:FMU-MB3-21M
DD3/8:FMU-MB3-1M
CN803
(USB&HDMI POWER)
W481 CN473
QJK052-072602-E
QGF1036C2-09
A12V
D4836
3.3V REG
1SS133-T2
D4835
1SS133-T2
R4852 Q4851
KTC3203/OY/-T
D4831 10
4.6V
3.6V
1SS133-T2
A6V
D4834
1SS133-T2
US5V
TP408
TP409
C4006
0.01
0.01/50
C4011
VREF-
R4093
2.2k 0V
SAFETY4
*
R4003 R4094 1k 4.9V
VERSION1
C4203
R4202
NI R4095 1k 4.9V
NI
* VERSION2
R4005 R4096 1k 0V
KEY1
C4001
R4097 1k 4.9V
NI 0.1/16
KEY2
C4202 C4002
SAFETY1 0.01/50 4.9V
0.1/16 C4008
SAFETY1
R4098 1k
SAFETY2 4.9V
NI R4099 1k SAFETY2
C4009
SAFETY3 4.9V
R4100 1k 0.01/50 SAFETY3
NI
C4201 4.9V IC401
VREF+
C4010
4.9V
0.01/50 VDD MN101C49KRC
2.3V
OSC2(8MHz)
2.3V
OSC1(8MHz)
0V
GND
SYSTEM MICOM
XI
C4204 NI 4.8V
XO
0V
MMOD
R4203 NI
VOL_DT R4006 1k 4.8V
VOL_DATA
C4205 R4007 47k 0V
NI NC
VOL_CK R4008 1k 4.8V
R4204
VOL_CLK
S2UDT R4009 0 4.7V
DVD S2UDT/TX
NI
C4206
DVD_U2SDT2 R4011 470 4.9V
NI DVD U2SDT/RX
DVD_CK R4089 4.7V
DVD CK/CLK
DVD_CS R4014
470 4.7V
100 DVD SCS
FOR FLASH
R4015 4.7V
BEAT
NI
6
5
4
3
2
1
QQR0621
-001Z
(B4165)
K4001
QQR0621
-001Z
(B4112)
R4312 NI
(FOR FLASH)
K4002
BACKUP R4322
4.9V
2.2/50 KRC111S-X
R4324
AND C4321 Q4321
0.1 10k 1k
DETECT 0V
3.3V
R4323 D4322
D4311
DVD_BUSY2 100k
UCS 1SS355-X
4.75V 4.85V 4.85V
2 1
3.3V
NI
RESET
DVD_U2SDT
IC432
S-80840CNNB-G-W
4.75V DVD_U2SDT2
Q4311
NI
TC74VHCT08AF-X
3 4
0V HDMI CEC
0V
LEVEL SHIFT
C4503
220/16
EP411 EP401
QNZ0136-001Z CN451
QGF1036C2-19
CN561
TO FRONT PWB
LVA10678-A5
LVS10522-002A
TO DVD TO DVD
DD1:FMU-MB3-21M DD1:FMU-MB3-21M
DD3/8:FMU-MB3-1M DD3/8:FMU-MB3-1M
(TRAY)
(DVD CTL & VIDEO)
CN471
CN472
QGF1036C2-05
QGF1036C2-26
R4725 5.6k
R4727 NI
R4729 4.7k
C4721
R4731 4.7k
C4722
NI
C4723
NI
D4721 NI
R4722
0.47
GS1J-X 2W
R4732
NI
1W
2V
C4726
NI IC471 LB1641
1 2 3 4 5 6 7 8 9 10
C4727
NI
C4702
0.1/16
C4703
0.1/16
C4704
NI
Q4701 TRAY DRIVE
NI
R4106
0R0
R4053
2.2k
C4004
FAN_DET1
0.1 AM-BEAT CUT
R4054 2.2k
FAN_DET2
TP407
R4049 2.2k
LCLOSE
R4048 2.2k Q4601
LOPEN
NI
R4050 2.2k
TRAY_OPSW
R4051 2.2k
TRAY_CLSW
R4052 NI
TRAY_CTL
R4056 NI AV COMPULINK
FAN_SW2
R4055 NI
FAN_SW1
R4047 2.2k TP403
CLIMIT D4611
R4101
1SS133-T2
R4031 0 10k
PDOWN 4.6V
R4030 10K
0V
CBTEST
Q4611
R4044 2.2k
HP_IN KRC102S-X
TP402
R4043 1k
HPMUTE
R4084
R4042 2.2k 10k R4613 10k
SW_PON
R4041 1k R4614 10k
SMUTE
R4040 NI
CTOSLSR
R4622 0
R4039 NI
CTOLR R4105
R4038 2.2k
LINE_O_DET
22K
R4037 12.5V 12.5V
NI
FLINE1 R4107
R4036 2.2K SW-PON
LINE_IN_DET Q4621
22k KRA102S-X
R4035 1k 0V
PLINK_DET
47k
R4034 2.2k R4621
LEVEL
R4086 0
R4033 2.2k
SW_LEVEL D4621
1SS355-X
R4032 1k
LINE_O_MUTE
4.6V
Q4622
KRC104S-X
NI
R4085
EEP ROM
JOINT PWB
8 7 6 5
IC431
BR24L08F-W-X
1kByte
1 2 3 4
NOTES:
1.VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER
OR OSCILLOSCOPE WITHOUT INPUT SIGNAL.
CONDITION POWER-ON. NO SIGNAL. DVD STOP.
2.UNLESS OTHERWISE SPECIFIED.
ALL RESISTANCE VALUES ARE IN OHMS. 1/16W, 5%.
ALL INDUCTANCE VALUES ARE IN H. u IS uH.
ALL CAPACITANCE VALUES ARE IN F. P IS pF.
3. "NI" MARKING PART IS NOT USED.
TO TUNER
QAU0473-001 (B/E/EN/EE/EV)
QAU0472-001 (A/J/UT/US/UX/UW)
CN441
QGF1205C2-15 (B/E/EN/EE/EV)
(A/J/UT/US/UX/UW)
R4451
0
S5V
US5V NI
R4452
R4205
4.7k CN421
QGA2536C1-10
C4404
0.01 1 US5V
2 SCARTL
3 AGND
4.7k
4 SCARTR
209X-BLOCK R4211
TU9V REG 5 TU-L
C4221
R4221 AGND
6
(B1166)
0.1/16
7 TU-R
0
8 12V
R4222
Q4404
C4222
KRA111S-X 9 A6V
0.1/16
0
12.5V
Q4403 10 3.3V
KTC3875/YG/-X (B1167)
CTOSLSR NI
CN474
12.5V 2
12.5V 0V
CTOLR
1
R4402
3.9
CN422
0V QGB1214J1-20S
C4401
12.5V LINE_O_MUTE
LOMUTE
20
LEVEL
Q4402 0.01 LEVEL
19
KRA104S-X
PLINK_DET
SIG
18
FTUNER
FTU
17
0V FLINE1
FLINE1
16
LINE_O_DET
LINEOUTJACK
15
Q4401
KRC107S-X LINEIN1JACK
14
D4231
SMUTE
S-MUTE
13
1SS133-T2 DGND
12
DGND
11
VOL_CK
VOL_CK
10
VOL_DT
VOL_DT
9
SW_PON
8
HPMUTE
HPMUTE
7
HP_IN
HPJACKIN
6
D4232 LRMUTE
5
1SS133-T2
4
RX
3
TX
2 AVVLR
SW_LEVEL
1 SW_LEVEL
CN461
QGF1036C2-07
1 AUDIO_R_IN
2 AGND
3 AUDIO_L_IN
4 +12V
VS3
5 VS3
VS1
6 VS1
BLANK
7 BLANK
CN463
QGF1036C2-19
D4601
1 A5V
10EDB20-T4
2 VGND
C
3 C
4 VGND
V
5 V
6 VGND
Y1
7 Y1
8 VGND
Y2
9 Y2-G
10 VGND
CB
11 CB-B
12 VGND
CR
13 CR-R-C
14 VGND
V_MUTE1
15 V_MUTE1
V_YCMIX
16 V_YCMIX
V_LPF
17 V_LPF
V_RGB
18
V_RGB
V_MUTE2
19
V_MUTE2
QGF1205C2-05
CN402
DEVICE KEY
WRITING
CN429 CN428
QGB1214K1-20S
QGB1214K1-20S
LVA10677-A3
SW_LEVEL 20 1
AVVLR 19 2 *PARTS LIST
TX 18 3
DD-1
DD-3 DD-8
RX 17 4 DD-8UF
LRMUTE 16 5
R4004 P-UP 10k NI 10k
VERSION1
HPJACKIN 15 6
R4003 P-DOWN 15k 10k NI
HPMUTE 14 7
SW_PON 13 8
VOL_DT 12 9
E J/C UX UW
VOL_CK 11 10
R4080 P-UP 10k 10k 10k 10k
DGND 10 11
VERSION2
DGND 9 12
R4005 P-DOWN NI 10k 6.8k 4.7k
S-MUTE 8 13
E: B/E/EN/EV/EE
LINEIN1JACK 7 14
LINEOUTJACK 6 15 E US/UX/A/UF UW/UT
FLINE1 5 16 INITIAL (RGB) (PAL) (NTSC)
FTU 4 17 P-UP
R4090 10k 10k NI
(RGB/PAL)
NTSEL
SIG 3 18
(RGBSEL)
P-DOWN
R4091 NI NI 10k
LEVEL 2 19 (YC/NTSC)
LOMUTE 1 20
E: B/E/EN/EV/EE
UT UF/US
10k NI
3.3k 10k
2-3