NEC DTE-29U1TH - 5 Circuit Description; Block Diagram

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Service Manual CP-785F
5 - Circuit description
5-1 Block diagram
To speaker/ nead phones
II C BUS
I902 EEPROM(8K)
Audio Amplifier
Base band signal
Sound processor I601
#28 #29
#49 #50
#52 #46 #53 #47
#33 #34
#58
SIF (5.5MHz for system B/G)
Audio out scart 1
Audio in Audio in
Audio in
Trap 5.5MHz
video in
#51 #46 #40 #38 #35 #42 #52 #47 #53
#2 #3
#4-I501
#24 #23
#29 #28
Micro controller
Video IF
IF
IF = 38.9 MHz (All standard except L’) = 33.9 MHz (L’)
Audio IF
SF1 SF2
Video processor
I501
#48
video out
QSS out
ext, video in
Video in
AV 1 AV 2
DVD Y
Switching IC
RGB out
To CRT board
DVD in
chroma in
I602