Tuner Section (Main P.c.b. (3/4)) Schematic Diagram (Tu) - Panasonic DMR-EZ28P Service Manual

12.7. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram (TU)

G
F
E
12 11 10 9 8 7 6 5 4
D
13 14 15 16 17 18 19 20 21
C
IC7801
B
REG. BOOSTER+5V
IC-DETAIL BLOCK DIAGRAM
5 1
VOUT VIN
IC
A
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.
NR GND H THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE
:ON
SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
4 2 3
1 2
IC7801
C0CBCDC00052
1 5
2
3 4
FL7301
J0B4504AA026
G_SIF_C
3 1
R7308
0
2
3 2 1
22 23 24
TL7301
R7306
4.7K
C7321
1
3 4 5
LB7803 J0JHC0000032
LB7809 J0JHC0000032
B0BA03000015
R7803 1K
LB7810 J0JCC0000103
LB7811 J0JCC0000103
LB7812 ERJ3GEY0R00V
LB7813 ERJ3GEY0R00V
G_SIF_B
Q7801
2SB1218K0L
LB7814 J0JHC0000032
R7804 0
R7801 680
R7805 0
LB7815 ERJ3GEY0R00V
IC7301
AUDIO MULTIPLEX DECODER
IC-DETAIL BLOCK DIAGRAM
24 23
QR7801 Q7802
UNR5112J0L 2SD1819K0L
R7802
100K
PILOT
LEVEL DET
STEREO
PILOT
PLL CANCELLER
PILOT
DET
1 2
6 7 8
49
P:Power Supply Section:(Page: A )
A:AV IO Section:(Page: B )
TU:Tuner Section:(Page: C ) TU7801
ENGF6704KF
T:Timer Section:(Page: )
D
BOOSTER_5V
AUDIO_IN
RFC_SW
RFC_5V
RFC_ON/OFF
VIDEO_IN
AGC
TU_MONITOR
C7830 C7839
6.3V47 0.01
TUNER_5V
D7801
NC
C7827 LB7816
ERJ3GEY0R00V
50V1
30V
IIC_SDA
C7825
18P
IIC_CLK
C7828
18P
AFT
C7831
0.1
G_SIF_A
SIF_OUT
VIDEO_OUT
VIF_5V
C7836
C7823
6.3V47 0.01
IFD_OUT1
IFD_OUT2
IF_AGC
IF_OUT
K7890
VWJ0795=5
IF_OUT_TW
22 21 20 19 18 17 16 15 14
MATRIX
MUTE
MODE
REGULATOR OUT
L+R
L-R/SAP
-6dB LPF
dbx PROCESSOR
MUTE
L-R
DEMOD
ST/SAP OFFSET
LPF
SW CANCELL
SAP
CONTROL
DEMOD
SAP
DET SYSTEM ST
LPF SAP BPF CONTROL SAP
ADDRESS
ILL
SIF DEMOD
DECODE
3 4 5 6 7 8 9 10 11
DMR-EZ28P/PC
Tuner Section (Main P.C.B. (3/4))
Schematic Diagram (TU)
9 10
DMR-EZ28P / DMR-EZ28PC
C
13
12