Sony RDR-GX300 Service Manual page 55

For Schematic Diagram
• Refer to page 4-4 for waveforms.
2 3
1
AV-84 BOARD(4/8)
TUNER
A
-REF.NO.:10000 SERIES-
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
B
R5.2
P0
AGC
Q402
MSD601-RT1
R3.6
P0
C JL405
R405
100
R409
100k
D
TU_R
9
TO(2/8)
TU_L
15
TO(6/8) TU_VIDEO
Q414,415
POWER CONTROL
TU_PCONT
E
JL415
IC401
TU 5V REG
UNSW_6V
R414
0
F
4
TO(1/8)
R407
1k
G
C403 C405
0.1u 0.1u
B B
16V 16V
16
TU_GND
4 5 6
R5.2
B+
P0
R4.7
P0
L406
R33.7
1mH
P0
C428 C429
L402
47u
0.1u
47uH
16V B
50V
R5.2
R4.1
R418
Q408
P0
1500
MSB709-RT1
q402,403 R1.3
AGC CONT
R410
Q406
27k MSD601-RT1
R0.1
R4.1 P0 D405
P0
R0.6 MMDL914T1
P0
0
C413 C414 R419
3900
47u 0.1u
16V B
16V
C416 C417
C415
Q403
0.001u
2.2u 0.022u
MUN2213T1 JL408 B
B
B
50V
25V
6.3V
JL416
B+
Q415
2SB1561T100Q
R440
1k
Q414 R436
MUN2211T1
10k
C424
0.1u
B 16V
JL407
B+
4 5
R5.2
P0
R2.5
P0
Q407
MSD601-RT1
R1.8
3 2 1 P0
R412 R413
220k 100k
± 0.5% ± 0.5% JL414
R411 C404
R420
100k 1u 1k
± 0.5%
B
C408
47u
16V
4-13
7 8 9 10
IC404
IC404
TK11819MTL
30V REG
T1
V-IN
VHF/UHF
GND
IN/OUT
OSC
R32.0
V-OUT P0
DK
L411
R457
47uH
100
C439
R441 C437
R453
1k 0.1u
10u
100k
B
50V
50V
C443
10u
L408
50V
47uH
B+
L403
P0
R427 10uH
R432
R4.9 1500
0
P0
R5.2
C419 P0
R423 R434
2200p
R1.8 100
1M
P0 B P0
50V
Q413
C418
R1.2
MSD601-RT1
4700p
P0
B
50V
C430
R424 0.1u
R421 R433
B
2700 4700
1k
16V
q406,408,413
VIDEO DET
B+ L409
47uH
L405
10uH
R428
1k
R491
1k
Q412
R2.5
MSB709-RT1
P0
R426
100
R1.8
P0
R2.5
P0
R0.1
P0
C426
C427
0.1u
47u
B
16V
16V
Q410
Q407,412
MUN2211T1
VIDEO BUFFER
CLAMP
11 12 13
B+
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
R476
B+
0
D408 D409
B+
1500 1500
C432
1000u
6.3V
C434
C435
47u 0.1u
B
16V
16V
TU_VDET
TU_PCONT
TU_PCONT
TU_G_MAX
TU_G_MAX
TU_AUTOP
TU_AUTOP
TU_M/SAP
TU_M/SAP
TU_AFT
16
TU_AFT TO(5/8)
TU_AMUTE
TU_AMUTE
TU_FMONO
TU_FMONO
TU_SAP_D
TU_SAP_D
TU_S/B_D
TU_S/B_D
TU_SDA
TU_SDA
TU_SCL
TU_SCL
SIGNAL PATH
VIDEO SIGNAL
AUDIO
CHROMA Y Y/CHROMA SIGNAL
REC
PB
4-14
RDR-GX300
14
R489
4700
TUNER
AV-84 (4/8)