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Main(tuner) Schematic Diagram - JVC HR-J691U Service Manual

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4.5
MAIN (TUNER) SCHEMATIC DIAGRAM
5
0 3 TUNER[MAIN]
TU6001
MATSUSHITA
ANT IN
ANT OUT
NTSC
NC(GND)
AUDIO IN
CH SW
MOD B(SW5V)
CONV.CTL(H)
VIDEO IN
NC(GND)
4
(RF AGC)
(BT)
AS
SCL
SDA
NC(5V)
MB(SW5V)
LOCK(L)
TU(30V)
IF OUT
IF IN
NC
NC
3
AUDIO OUT
(SIF OUT)
AFT
VIDEO OUT
NC(OPEN)
OPEN
2
TO
SYSCON
I2C_DATA
I2C_CLK
AFC
CONV_CTL[H]
CH_SW
TU_MUTE[H]
1
## MARKED SYMBOLS ARE NOT MOUNTED.
A
TU6001
ALPS/LG/SANYO
ANT IN
ANT OUT
NTSC
R6054
1K
AUDIO IN
# #
C6053
CH SW
# #
L6003
C6013
SHORT
0.01
MOD B(SW5V)
# #
C6012
10
/16
CONV.CTL(H)
# #
C6052
VIDEO IN
100p
L6050
SHORT
R6050
(RF AGC)
0
NC
# #
C6022
AS
# #
C6020
SCL
R6020
1k
# #
C6021
SDA
R6021
1k
L6001
# #
C6007
SHORT
1200
/10
NC
MB(SW5V)
# #
C6008
LOCK(L)
TU(30V)
# #
C6006
0.01
TP
# #
C6005
10
/50
IF OUT
D6002
HZ30-2L
AUDIO OUT
SIF OUT
AFT
VIDEO OUT
B
C
TO SW REG.
SW5V
BT2
GND
SW12V
TO VIDEO/N.AUDIO
RF_AUDIO
R6503
15k
TO FMA/DEMOD
COMP
SIF
R6504
10K
# #
C6531
R6030
0.01
3.3K
R6031
0
# #
B6030
# #
C6033
##
0.001
R6034
1M
# #
Q6031
DTC114E
# #
Q6030
2SB1218A/QR
2SA1576A/QR
2PA1576/R
RF_VIDEO
TO TERMINAL
TU_VIDEO
TO VIDEO/N.AUDIO
GND
D
E
4-11
4-12
Note :
The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only.
When replacing the parts , refer to the Parts List.
F
p10378001a_rev0
G
H

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