Sony DCR-TRV820 Service Manual page 116

VF-141 (RGB DRIVER, TIMING GENERATOR) SCHEMATIC DIAGRAM • See page 4-106 for waveforms.
2 3
1
VF-141 BOARD
A RGB DRIVER/TIMING GENERATOR
-REF.NO.:20,000 SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
B
C
D
CN4501 18P
EVF_2.8V 18
EVF_2.8V 17
EVF_R 16
E
EVF_G/BW_Y 15
EVF_B 14
HDO
VCO 13
XHD
EVF_XHD 12
CF-72 BOARD
XVD
CN006
EVF_XVD 11
(THROUGH THE
FP-151 FLEXIBLE) EVF_GND 10
(SEE PAGE 4-80)
EVF_GND 9
XCS_EVF
XCS_EVF_D/A 8
XVC_SCK
F
XVC_SCK 7
XVC_SO
XVC_SO 6
EVF_12.0V 5
EVF_VG 4
DET 3
LB-62 BOARD
CN4601
LED_K 2
(THROUGH THE
FP-151 FLEXIBLE) PWM 1
(SEE PAGE 4-89)
G
H
I
J
K
05
L
4 5 6 7
C4526
0.01u
B
1.1 N.C
R4505
470k
XC_SAVE 2.8
XC.SAVE
XVC_SCK 2.5
XSCK
XTG_SO 2.6 SI
XCS_EVF 2.8
XCS
L4501
10uH
2.8 Vcc1
R4534 R4535
0
XX 2.8
TRAP_ADJ
R4506
XX 1.1
R4507 LPF_ADJ
100k
± 0.5%
C4506
XP_SAVE 2.8 XP.SAVE
XX
1.7
B_IN
C4501 C4503 C4505
10u 0.1u XX C4507 0.01u B
6.3V B
1.7 G_IN
TA A
C4508 0.01u B
R_IN
1.7
C4509 0.01u B
FB4505
0uH
C4504
0.1u
B
R4508
C4527
0.1u 100k
B
2.8
D4501
XX 0
R4544 C4510
0.1u
470k
B
Q4504
2SD2216J-QR(K8).SO
INITIAL RESET
BGP
BLK
FRP
XVC_SCK
XCS_EVF
XTG_SO
XVC_SO
XVD
XHD
HDO
R4542
0
Q4503
XX
4-85
8 9 10 11
FB4502
C4514
0uH 3.3u
20V
TA A
C4513
R4513
0.1u
15k B
36 35 34 33 32 31 30 29 28 27 26 25
3
VB
6.8 C4518
B_DC_DET
1u
2
1.7
VG
6.8 C4519
G_DC_DET
1u
1.6
1
VR
IC4501
6.8 C4520
R_DC_DET
1u
RGB DRIVER
1.7
IC4501
GND2
RB5P0040M1
GND1
VREF
4
Vcc3
13.5
COM_OUT
5
COM_IN
6
1 2 3 4 5 6 7 8 9 10 11 12
R4515
C4512
2700
0.1u B
R4522
100k
D4502
R4521
1T369-01-T8A
1M
C4515
R4516
1000p
47k
SL
C4516
120p
CH
R4518
L4504
22k
6.8uH
36 35 34 33 32 31 30 29 28 27 26 25
7
2.7
XCLP
TST3 HCK1
0
SBLK HCK2
1.4
FRP
IC4502
TST4
2.5
TIMING GENERATOR
XSCK
IC4502
2.8 CXD3501R-T4
VDD DWN/CLR
2.8
XCS
2.6
SO
0.5
SI
VDO
2.8
XVD TSTEN
1 2 3 4 5 6 7 8 9 10 11 12
R4543
R4529
10k
0
D4503
MA2S784008S0
Q4502 C4521
R4530
XX 0.1u
100k D4504
B
MA2S784008S0
DCR-TRV820/TRV820E/TRV820P
12 13 14
R4526 100
B
R4527
100
B
R4528 100
B
CN4502
16 COM
15 G
14 R
13 B
TG24
12 BLK
TG23
C4523
11 HCK1
4.7u
TG22
B
10 HCK2
TG21
9 HST
TG20
8 RGT
TG18
7 DCG/CLR
TG17
6 EN
TG16
5 STB
TG15
4 VCK2
TG14
3 VST
2 VSS
1 VDD
C4524
2.2u
F
TG24
BLK
0
TG23
1.4
TG22
1.4
TG21
HST
0
TG20
RGT
2.8
VDD
2.8
TG18
2.8
TG17
EN
2.6
TG16
STB
2.8
TG15
VCK
1.4
TG14
VST
0
SIGNAL PATH
VIDEO SIGNAL
R4525
27k
CHROMA
REC
C4517
R4524
0.1u
82k
B
PB
4-86
RGB DRIVER, TIMING GENERATOR
15 16
16P
LCD903
COLOR
LCD UNIT
VF-141