Main Section - Sony MCE-F88K Service Manual

– MAIN SECTION –
L-CH
ATT
AMP.ON
CONT
Q804,809
LOW
BOOST
LO.BOOST
SWITCH
Q807,810
B
VIDEO
A MUTE
SECTION
(Page 20)
STANDBY
DATA0
64 DI
CLK1 63 CL
FLCS 62
CE
FLBLK
61 BLK
P.ON
09
RESET
AMP
IC801
ATT SW
2 1 2
Q802
SWITCH
3
Q801
+5V
RV400
MIC1
MIC1 AMP
LEVEL
IC601(1/2)
J602
MIC1
3 1
RV401
MIC1 AMP
MIC2
IC601(2/2)
LEVEL
J603
MIC2
5 7
S40 ACTIVE 17
S39 WIDE 18 LED
DRIVE
S38 K.PON 19
Q700-706
S37 UP 20
S36 NATURAL 21
S35 DOWN 22
FL
S1 56
DRIVER
42
•
IC701
40
S24 33
FLUORESCENT
G1
GRID
C1 2
INDICATOR TUBE
DRIVE
G6
C6 7
Q401-402 FL700
C2 3
C5 6
VF1
LPF
IC802
OUTPUT AMP
IC803
1 2
LINE
1
MUTE
Q803
3
5
MIC MIX AMP
IC602(1/2)
2 1 6
MIC AMP
RV303
IC602(2/2)
IC600 ECHO
LEVEL
ECHO
1 8
CONTROL
SWITCH
Q600
D700-706
VF2
POWER ON
SWITCH
Q820,821
19 19
J801
R
R-CH L
RV300
PHONES
LEVEL
IC804
J600
R-CH
HP MUTE
PHONES
7
Q813
MUTE
CONT
Q814
7
• R CH: Same as L ch
• SIGNAL PATH
: CD
: MIC
• Abbreviation
EA : Saudi Arabia model.
HK : Hong Kong model.
MY : Malaysia model.
SP : Singapore model.
TH : Thai model.
+7V REG
RECT
+7V
3 1
IC807
D806,807
+12V
+5V REG RECT
+5V
Q816 D804
12 14
+V OUT CO+
10 ON/OFF
-V OUT CO-
5 3
-5V REG
-5V
Q819
+B,-B
+B
SWITCH
-B
Q812,815
VFDP REG
VFDP
Q817
+5V REG,RESET GEN
IC806
4
RST
VCC 1
+5V 5
+5V
MCE-F88K
AUDIO
OUT
T900
POWER
TRANSFORMER
AC IN
VOLTAGE
SELECTOR
S900
EA, HK, MY, SP
VF1
VF2