JVC TH-R3 Service Manual page 52

System control section
RGB_IN[H]
SCR_ID
TO SHEET 3
SEPA_IN[H]
SECAM_DET[H]
4_3[L]
TV[L]
RGB_TH[H]
AV1_YC_IN[H]
TO SHEET 4 BIAS/RGB_CTL
AV1_L
AV2_H
P_MUTE[H]
RAPID_SW
V_MUTE[L]
GND
I2C_DATA2
TO SHEET 3
I2C_CLK2
PD[L]
CN3003
TO CN8600
SHEET 18
D5V
Q3004
3.3V
SW-12V
R3218
P.SAVE[L]
D3003
SW5V
SW12V
TO SHEET 1
45V
GND
DVD_P.CTL[H]
HDD_P.CTL[H]
FAN_CTL
P.CTL[H]
L3001
AL5.8V
D3004
CN3004
Not use
C3010 C3011
K_BUS_OUT
K_BUS_IN
K_BUS_CLK
TO SHEET 7
K_BUS_REQ
SYS_RESET[L]
GND
P.CTL[H]
LED_OUT
R3202
BACK_UP_GND
AL5V
TO CN7001
S_CLK
S_DATA_TOSYS
SHEET 9
S_DATA_FRSYS
STB
RC_IN
GND
R3076
R3220
R3084
R3242
R3083
D3002
R3085
R3086
R3087
R3088
R3089
R3090
R3091
R3092
R3093
R3094
D3005
R3100
C3042
R3201
C3001
C3002
R3235
B7451
C3038
C3037
R3050
R3049
R3047
R3045 R3228
R3042
R3227 C3035
C3033
IC3001
X3002
C3034
C3032
X3001
R3226 C3031
R3032
R3031
R3029
R3028
R3027
R3026
R3025
IC3002
C3003
C3004
C3005
C3006
C3007
Q3007
D3008
L7201
R7456
Q7201
R7454
C7453 Q7451
C7451
Q7452
R7203 R7453
R7204
Q3005
IC3004
C3054
B3901
R7451
G_TX
TO SHEET 7
IRTX
R7452
G_RX
CN7451
Not use
J7451
J7451
AV1_L
AV2_H
ADC_RST[L]
TO SHEET 2
AI_IEC958
A_MUTE1[H]
I2C_DATA2
I2C_CLK2
SYNC_DET
TO SHEET 3
I2C_DATA2
I2C_CLK2
CN3901
Not use
P50_I/O
YC_MIX[L]
TO SHEET 4
RAPID_IN
R[H]
TU_V_MUTE[H]
TU_DATA
TU_CLK
SW_2 TO SHEET 6
SW_1
AFC
RF_AGC
SHEET 5
2-9