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JVC DR-MH20SE Service Manual Page 35

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System controller section
TO SHEET 9
443[H]
TO SHEET 11
SCR_ID
SEPA_IN[H]
TO SHEET 9
SECAM_DET[H]
4_3[L]
TV[L]
RGB_TH[H]
TO
5
AV1_YC_IN[H]
SHEET 11
BIAS/RGB_CTL
AV1_L
AV2_H
TO SHEET 10
P.MUTE[H]
RAPID_SW
TO SHEET 11
V_MUTE[L]
GND
I2C_DATA_A/V
TO SHEET 9
I2C_CLK_A/V
4
R3220
100k
HDD_P.SAVE
P.SAVE
SW5V
TO
SW12V
48V
SHEET 10
GND
FAN_CTL
R3218
Q3004
P_CTL[H]
4.7k
2SD601A/QRS/
2SC2412K/QRS/
AL5.3V
#
D3003
2SC3928A/QRS/
RD39ES/B3
MTZJ39C
R3219
4.7k
L3001
0.22u
D3004
11ES2
1A3G
3
EDL
#
C3010
#
C3011
QEZ0244-229
4700
/6.3
K_BUS_OUT
K_BUS_IN
K_BUS_CLK
TO
K_BUS_REQ
SHEET 10
SYS_RESET[L]
GND
P_CTL[H]
VD
VIDEO_LED
DVD_LED
DVD_REC_LED
HDD_LED
HDD_REC_LED
R3251
LED_OUT
10k
TO
BACK_UP_GND
SHEET 14
AL5V
S_CLK
2
S_DATA_TOSYS
S_DATA_FRSYS
STB
RC_IN
GND
1
A
C3038
C3039
47
/6.8
0.01
C3007
1
C3014
47
/6.3
C3015
0.1
R3011
SHORT
R3252
SHORT
R3012
1k
R3213
D3002
470k
1SS133
1SS270A
R3249
SHORT
R3016
SHORT
R3017
100k
#
R3018
R3214
#
R3242
4.7k
R3248
SHORT
330k
#
R3246
OPEN
#
R3247
OPEN
R3022
1k
D3005
11ES2
1A3G
R3028
1k
#
C3042
470
/6.3
[for_EDL]
#
C3051
0.0027
C3049
OPEN
#
R3260
10K
#
Q3010
R3234
10k
#
D3008
UN221E
DTC144WKA
R3233
10k
#
D3007
B
C
Vss
SVss
DVD_REC_LED
Vcc
DVD_LED
VIDEO_LED
R3079
1k
443[H]
SEPA_IN[H]
#
IC3001
R3076
0
SVcc
HD643219****F
I2C_DATA
HD64F2194F****
R3075
0
AVcc
I2C_CLK
A.MUTE1[H]
R3073
1k
TU_V_MUTE[H]
R3072
1k
TU_A_MUTE[H]
TP3904
R3071
MODE
C3050
0.1
Vcl
OSC2
TEST
Vss
SCR_ID
OSC1
TP3905
RES
AFC
X1
RF_AGC
X2
R3063
SHORT
TP3903
R3062
AVss
FWE
R3061
1k
TU_DATA
R3060
1k
SW2
TU_CLK
RAPID_SW
JUST_CLK
TP3908
SW1
TP3907
B3971
LED_OUT
B3962
R3258
#
R3257
TP3906
#
R3256
#
IC3004
AT24C**N-10SC
24LC**B/SN
BR24C**F
X24C**S
C3017
OPEN
C3018
OPEN
C3019
OPEN
C3020
OPEN
C3021
OPEN
R3223
R3224
R3235
3.3k
R3236
3.3k
#
R3237
3.3k
#
Q3009
#
Q3007
UN221E
UN221E
DTC144WKA
DTC144WKA
1SS355
D
E
2-33
2-34
C3037
12p
10k
X3002
QAX0528-001
R3069
100
QAX0527-001
C3054
C3031
QAX0533-001
OPEN
R3230
0.1
R3229
QAX0532-001
4.7k
R3231
1M
QAX0527-002
1k
C3036
18p
R3066
C3030
4.7k
#
C3041
10p
47
/6.3
#
C3025
#
IC3003
IC3002
#
X3001
#
C3024
BD4727G
IC-PST3427U
10k
C3028
C3029
OPEN
OPEN
R3239
R3240
10k
10k
SHORT
SHORT
10k
10k
10k
#
Q3901
UN221E
DTC144WKA
4.7k
4.7k
R7202
F
AV1_L
AV2_H
TO
ADC_RST[L]
A_MUTE1[H]
SHEET 8
I2C_DATA2
I2C_CLK2
SYNC_DET
TO
I2C_DATA2
SHEET 9
I2C_CLK2
CN3901
TO SHEET 11
P50_I/O
TO
R.PAUSE
SAT_CTL
R7204
SHEET 10
GND
10
1/2W
Q7201
QRE123J-100Y
2SC1317/RS
L7201
220
100u
R7203
C7203
4.7k
C7202
330
/6.3
100
/6.3
I2C_DATA2
I2C_CLK2
TU_V_MUTE[H]
TO
TU_DATA
TU_CLK
SHEET 13
SW_2
SW_1
AFC
RF_AGC
p10603001a_rev0
SHEET 12
G

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