Toshiba W808 Service Manual page 104

7-2. PIF Block Diagram
ANT IN ANT OUT
ANT IN
SPLITER
RF SW
RF
HPF TUNING
AMP
RF
BPF TUNING
AMP
RF
LPF TUNING
AMP
IF
TUNE
PIF / SIF LA7578N
IF
AMP
D / A
INPUT
7
ATTENUATOR
STEREO / SAP
SWITCH
15 2
1 C BUS
INTERFACE
16
3 IN 1 TUNER
H001 TMLH2X006A
RF OUT
AUDIO IN
1
4.5MHz OSC
CH SW
2
RF MODULATOR
3
MB(5V)
LPF
HA11560FP
CONTROL
4
SAW
RESONATOR VIDEO IN
5
PLL
PC44818D
PB(5V) 6
MIX / OSC
AJ605A
TU(32V) 7
TUNING
S.CLOCK
8
S.DATA
IF
9
TUNING
AMP
ADDRESS
10
IF OUT
TUNING
11
NC
12
+B(9V) 13
AUDIO OUT
14
GND
15
VIDEO
TRAP
VIDEO
AFT
16
CIRCUIT
FM 4.5MHz
NC 17
DET BPF
VIDEO OUT
18
ATT
SAP
DEMODULATION
BLOCK
STEREO
DEMODULATION
BLOCK
DBX NOISE
REDUCTION BLOCK
OFFSET
ABSORPTION
27
MATRIX
26
SELECTOR
25
ICD01 µPC1854AGT
MULTIPLEXED TELEVISION
SOUND PROCESSING SYSTEM
S001
CH SW
32V
REG
BUFFER
VIDEO SIGNAL
AUDIO SIGNAL
RF VIDEO IN
TO VIDEO
TUNER VIDEO OUT
ON / OFF 5V
EVER 37V
TO POWER
ON / OFF 9V
AFT
SCL1
TO SERVO
SDA1
TV VTR
(RF AUDIO IN)
(TUNER AUDIO L OUT)
(TUNER AUDIO R OUT) TO AUDIO
CONVENTIONAL AUDIO OUT
Fig. 7-2-1