Block Diagrams - JVC DR-MH300SAA Service Manual

Hdd & dvd video recorder
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Block diagrams

MAIN 0 3
Audio signal control section (SHEET 3)
5
Muting
Q8203,Q8205
DAC_SDA DAC_SCL A_DAC_CS DAC_RST[L]
AO_D[0] AO_SCLK AO_FSYNC AO_MCLKO
2chDA converter
IC8201
AI_D[0] AI_SCLK AI_MCLK0 AI_FSYNC
24bit
A/D converter
4
IC8001
ACD_RST[L]
I2C_CLK2
I2C_DATA2
A_MUTE1[H]
TO
SHEET 7
3
REAR2_Y_IN
REAR2_RC_IN
C_FROM_RGB
Y_FROM_RGB
REAR2_RC_IN
REAR2_Y_IN
2
REAR1_C_IN
VPS/PDC Slicer
REAR1_V_IN
REAR1_Y_IN
YTODIGI CTODIGI
SYNC_DET
I2C_DATA2 I2C_CLK2 PD[L]
Video controller
IC4001
TU_VIDEO
1
FRONT_VIDEO FRONT_Y_IN FRONT_C_IN
F_AUDIO[L/R]
Audio/Video signal input control section (SHEET 4)
A
IC8501
AO_IEC958
A_MUTE2[H]
AUDIO_OUT1[L/R]
AOUTL
AOUTR
OP.AMP.
IC8202
LINE_OUT[L/R]
AUDIO_IN2[L/R]
AV Switch
IC8301
DEC_OUT[L/R]
AUDIO_IN1[L/R]
OP.AMP.
AV Switch
IC8303
IC8302
AV1_L
AV2_H
TO CN4402
SHEET 17
FSC2
H_OUT
REAR2_B_IN
V_OUT
REAR2_G_IN
SYNC
RGB_IN[H]
IC4201
Video switch
IC4202
SYNIN
TO SHEET 8
TO CN7102
SHEET 10
B
C
J8501
COAXIAL OUT
RAPID_SW BIAS/RGB_CTL
4_3[L] P50_I/O AV_YC_IN[H] TV[L]
TO SHEET 8
TO SHEET 5
AV1_L
SCR_ID
AV2_H RGB_TH[H]
VMUTE[L] YC_MIX[L]
TO SHEET 8
PB/B_OUT PR/R_OUT
PY/G_OUT V/Y_OUT
TO SHEET 5
TO SHEET 8
SCOUT SYOUT
REAR1_C_IN REAR1_Y_IN
REAR1_V_IN
REAR2_RC_IN REAR2_G_IN
REAR2_B_IN REAR2_Y_IN
TO
HDD_P_CTL[H] DVD_P_CTL[H] FAN_CTL P.CTL[H] P.SAVE[L]
SHEET 1
SCR_ID 4_3[L] TV[L] RGB_TH[H] AV1_YC_IN[H] BIAS/RGB_CTL AV1_L AV2_H
P_MUTE[H] RAPID_SW V_MUTE[L] P50_I/O YC_MIX[L] RAPID_IN
ADC_RST[L] A_MUTE1[H] I2C_CLK2 I2C_DATA2 AV1_L AV2_H
I2C_DATA2 I2C_CLK2 SYNC_DET PD[L] RGB_IN[H]
G_TX IRTX G_RX K_BUS_OUT K_BUS_IN K_BUS_CLK
TO
K_BUS_REQ SYS_RESET P.CTL[H]
SHEET 8
TU_V_MUTE[H] TU_DATA TU_CLK AFC SW_1 SW_2 RF_AGC
System controller section (SHEET 6)
RF_AGC
SW_1 SW_2
D
E
2-5
2-6
L-1 SCART Terminal
J7301
Q7310 to
Q7312
SWITCH
IC7302
SWITCH
IC7303 IC7304
R
R
G
G
B
B
V_OUT
Video driver
IC7301
DEC_OUT[L/R] AUDIO_IN2[L/R]
Input/output terminal section
(SHEET 5)
J7302
L-2 SCART Terminal
System controller
TU_V_MUTE[H]
TU_VIDEO
Muting
Q6030
VIDEO_OUT
Tuner
TU6001
AFC
COMP SIF
TU_DATA TU_CLK
Tuner section (SHEET 7)
F
J7304
AUDIO OUT
LINE_OUT[L/R]
AUDIO_IN1[L/R]
TO
SHEET 3
J7309
COMPONENT
VIDEO OUT
IC3001
STB RC_IN S_CLK
S_DATA_TOSYS LED_OUT
S_DATA_FRSYS
CN3001
TO CN7001
SHEET 10
DEMOD[L/R]
G

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