Magnavox 40ME313V/F7, Service Manual

Page: 28 / 53

9-2
2. Video/Audio Block Diagram
FL13.12ABLVA
DIGIT
AL MAIN CB
A UNIT
IC3801
(A
UDIO AMP)
Q3801
AMP-MUTE COMP-DET
T
O
SYSTEM CONTR
OL
BLOCK DIA
GRAM
SP3802 SPEAKER R-CH
CN3801
SP3801 SPEAKER L-CH
AMP(L)-OUT
AMP(R)-OUT
3
SP(R)-
4
SP(R)+
2
SP(L)-
1
SP(L)+
DIF-OUT1 DIF-OUT2
IF-A
GC
T
O
DIGIT
AL
SIGNAL PR
OCESS
BLOCK DIA
GRAM
JK3001 PC-RGB -IN
1 2 3
13 14 15 12
V
GA-R-IN
V
GA-G-IN
V
GA-B-IN
V
GA-HSYNC
V
GA-VSYNC
V
GA-SCL
V
GA-SD
A
TU3901
DIF-OUT1
6
DIF-OUT2
7
(TUNER UNIT)
IF-A
GC
5
VIDEO SIGNAL
AUDIO SIGNAL
1 2 3
25 23
CONTROL LOGIC
DRIVE DRIVE
PWM LOGIC
18 20
DRIVE DRIVE
PWM LOGIC
12
POWER LIMIT POWER LIMIT
A
U
DIO(L)-IN
A
U
DIO(R)-IN
JK3701
DIGIT
AL
A
U
DIO-OUT
(CO
AXIAL)
Q3701
B
UFFER
A
UDIO(L)-IN
A
U
DIO(R)-IN
HP(R)
HP(L)
SPDIF
COMPONENT -Y/VIDEO-IN COMPONENT -Pb-IN COMPONENT -Pr-IN
JK3702
COM-VIDEO-Y/VIDEO-IN
COM-VIDEO-Pr-IN
COM-VIDEO-Pb-IN
JK3703 HEADPHONE JA
C
K