Vcr Mt Pcb Assy(7/7) - Pioneer DVR-RT400-S Service Manual

1

3.15 VCR MT PCB ASSY(7/7)

B 7/7
VCR MT PCB ASSY
A
(A2E905T010B)
Hi-Fi BLOCK
FROM/TO Y/C/AUDIO/H.AMP SECAM
NORMAL_AUDIO_IN
NORMAL_AUDIO_OUT
B 1/7
HF1
HF2
HF_COM
B
FROM/TO SYSCON/SERVO/TIMER
HIFI_H.SW
IIC_CLK
IIC_DATA
B 2/7
HIFI_ENV.DET
HIFI_REC_MUTE
AUDIO_MUTE-H
FROM/TO 21PIN I/O
DEC_AUDIO-R
C
DEC_AUDIO-L
HIFI_AUDIO_OUT-R
HIFI_AUDIO_OUT-L
B 4/7
SWD_AUDIO-L
SWD_AUDIO-R
DVD_AUDIO_L
DVD_AUDIO_R
FROM/TO AV I/O 2
DVD_MUTE
D
TU_AUDIO-R
TU_AUDIO-L
B 3/7 HIFI_AUDIO_OUT-R
HIFI_AUDIO_OUT-L
DVD_AUDIO_OUT_L
DVD_AUDIO_OUT_R
FROM/TO DISPLAY
FRONT_AUDIO_IN-L
B 6/7
FRONT_AUDIO_IN-R
E
FROM/TO REGULATOR
AT+5.2V
AT+9V
B 5/7
P.CON+12V
GND
F
B 7/7
52
1
2
CAUTION: DIGITAL TRANSISTOR
MUTE SW
Q702
DTA143EKA
R742
5.1
AT+5.2V
0
470
5.1
0
R740 MUTE SW R741
2.9
Q701
680 470
DTC124EKA
0
AUDIO MUTE
KTC3875S_Y_RTK
C704
R722 R729
10K 50V 2.2 KA 10K
R723
56
C703
R728
50V 2.2 KA 10K
DVR-RT400-S
2
3
CAUTION: DIGITAL TRANSISTOR
0
AUDIO MUTE
0.8
Q704
KTC3875S_Y_RTK
0
0
0
0
Q703
R731 R733 R736
10K 15K 1K
C748
C742 R734
0.0015 B 12K 16V 22 KA
0 5.7 5.7 5.7
4 3 2 1
L -
+
IC702
NJM4580M
+
AMP
R -
5 6 7 8
5.7 5.7 5.7 11.6
C747
R730
10K 16V 22 KA
C741 R735 R737
0.0015 B 15K 1K
3
4
TU_AUDIO-R
TU_AUDIO-L
DVD_AUDIO_R
R701
47K
R702
SWD_AUDIO-R
47K
R705
R703
FRONT_AUDIO_IN-R
47K 1/4W
R706
DEC_AUDIO-R
DEC_AUDIO-L
HIFI_AUDIO_OUT-R
R743
HIFI_AUDIO_OUT-L
560
R738
NORMAL_AUDIO_OUT
3.9K
NORMAL_AUDIO_IN
SWD_AUDIO-L
FRONT_AUDIO_IN-L
L701
AT+9V
R744 22uH 0305
560
DVD_AUDIO_L
4
3.9K
3.9K
R707
1K
R708
1K