Vtr Asp Schematic Diagram - JVC GR-AXM236U Service Manual

4.4

VTR ASP SCHEMATIC DIAGRAM

JIG_CONN.
CN25
V_FF
V_TP_FM
V_OVL
PB_CTL
AO_SIG_J
TO CPU
5
FEH_ON
V_ENV
V_FF
SCK3
SO3
V_ASP_CS
CTL_OUT
REC_CTL
A_BIAS
A_PB
A_MUTE
APB_EP_H
TO DSP
SPK_VOL
TO REG
GND
4
REG_4.8V
REG_3.2V
TO A/C HEAD
CN7
REG_4.8V
CTL_HED-
CTL_HED+
AE-
L2004
AE+
#
AH_PB
AH_REC
L2005
AH_GND
0 Ω
JP2001
JP2002
3
2
TO DSP
SH_SIG
CN8
MIC_HOT
TO MIC
MIC_GND
NOTES : 1. The parts with marked ( ) is not used.
1
2. For VTR ASP waveforms, please refer to page 4-45.
A B
C2001
10
/6.3
T
IC2001
TC74AC04FT
C2003 C2002
330p TF
R2001
100k
DTA114TE
1k
Q2001
R2006
L2003
47µ
C2005
R2003
1
1k
R2011
R2002
R2004 100
3.3k 680
Q2008
PUMT1
Q2007
PUMX1
R2005
2.7k
C2004 R2012
22 /6.3
T
100
L2071
C2072
0 Ω
0.0022
L2072 0 Ω
∗
C D
NOTES : For the destination of each signal and further line connections that are cut off from
this diagram , refer to "4.1 BOARD INTERCONNECTIONS".
When ordering parts , be sure to order according to the Part Number indicated in the Parts List.
R3502
1k
L3502
22µ
Q3505
C3513 R3501
#
#
0.022
C3903
3p
2Fsc FM FM FE FE FE
Vcc GND OUT IN CTL
CR P/R
1/2
OVL DEMOD GND
SW30
CH2
CLK
CH2
DATA
R3506
1k
LOAD
CH4
CTL
OUT CH4
REC IN
P/R
CTL
GND Vcc
C1201
1000p
MONI
LINE MUTE
OUT
REC MUTE CH1
C1202
DC DC
DET CONT
10 /6.3
LPF CH1
C1204 CTL
Vcc
C1205 0.01 CH3
CTL-
10 /6.3 CH3
BG
VCA
C1206
Audio Audio
GND Vcc
R2021
10k
C2021
#
L2022
T
#
R2024
R2022 #
L2023
330k
#
C2039
#
T
C2023
R2023 1
T
# /6.3
T C2071
C2022
R2071 10 /6.3
#
47k T
C2024
R2072 # Q2023
5.6k 2SC4617/QR/
Q2021
R2031
Q2071 DTC144EE
3.3k
2SC4617/QR/
JP2004
Q2022
DTC144EE
JP2003
# : EXCHANGE PARTS LIST
[VIDEO]
NTSC PAL
VHS SVHS
MODEL MODEL
R3507 0 100
∗ ∗
DTC144
Q3505 L3503 5.6
EE
∗
C3516 10p
R3501 0 220
∗
C3509 220p
E
4-9 4-10
0 1 MAIN (VTR ASP)
Y
R3507 #
C
L3503
#
C3516
#
C
R3902 R3901
100 10
C3902
Q3901
HN1A01FU/G
R3903 C3901
1.8k
JP3501
C3506
0.01
Q3502
HN1C01FU/G
Q3501
HN1C01FU/G
IC3501
HA118224F
L2021
47µ
C2035
22
T /6.3
L2051
0 Ω
R2051
1k
C2052 C2051
∗ ∗
L2052
0 Ω
y20158001a_rev0
[AUDIO]
NTSC PAL NTSC PAL
Ω
R2023 150 82 L2004 0 NQR0403-003X
Ω
R2024 13k 18k L2022 0 NQR0403-003X
Ω
C2021 0.0068 0.01 L2023 0 NQR0406-003X
∗
C2022 10 µ /6.3 15 µ /6.3 C2039 33
p
C2024 0.0012 0.001
F G
TO DSP
V_OVL
2FSC
V_PB_F
V_REC_F
V_REC_C
S_DET+
TO TG/CDS
V_PB_C
CN5
TO
GND
FLY.E HEAD
FE_S
GND
V_CH2_S
V_CH2_F
V_CH4_S
TO
V_CH4_F
VIDEO HEAD
V_CH1_S
V_CH1_F
V_CH3_S
V_CH3_F
TO SPEAKER
PA_SIG
AO_SIG
TO
JACK
AO_GND
TO REG
GND
H