Memorex MVDT2402 Service Manual page 68

A B
8
7
6
5
4
3
2
1
A B
G-19
C D
Hi-Fi/DEMODULATOR SCHEMATIC DIAGRAM
C5511
0.1 B
C5507
R5504
3.3K
50V 0.22 YK
R5523
HI-FI/AUDIO/HEAD AMP/DEM IC
1M
C5504
0.1 B R5503
3.9M
C5505_1
C5509
0.1 F
16V 47 KA
L5502_1
P.CON+5V_A
22uH 0305
C5506 C5510
0.1 B 0.1 B C5514
AUDIO_OUT_R
C5512
35V 22 YK
50V 2.2
ST_SELECT
AUDIO_OUT_L
35V
D5501 L5501
C5501
P.CON+12V
11EQS04N 100uH
0.1 B
C5502
16V 47 YK
C5508
NORMAL_A
R5501 50V 10 YK
Y/C_AUDIO
1.2K 1/4W
R5502
330
C5503
0.047 B
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C D
E
(VCR PCB)
IC5501
AN3663FBP
NC
2.2 0 3.5 2.1 2.3 4.7 4.7 0 4.9 0 0 1.6 0
48 47 46 45 44 43 42 41 40 39 38 37 36
3.4
DEM_BLK
ZZ-PROM
LOGIC
C5513
2.7 4.5M CUE AM 95HMz MUTE VCO-F0
TRAP BPF DEMOD BPF CTL ADJ
0.1 B
LOGIC
4.9
SUB SUB 3.5M S/N
COMP
BPF DET VCO
PNR RCH
2.5 SW NOISE
MAIN FM LOGIC SW21
DEEN DEMOD
SW9
4.2
SUB DEEN
MATRIX
AUDIO
R5522 FROM 1PIN
MUTE LIMIT
OUTPUT SW
2.3
LOG
R SW18
AMP R L BS
AMP
PC PB LPF
1K AMP
YK
SW19 HIFI
0
J L
R
MIX
AN3672FBP RCH BPF
1.2 MUTE
SW16 FM UM
L SW10
MIX LCH BPF
C5515
4.3
SW17
HIFI
AMP
L
R BS
22 YK
PC PB LPF
11.0 FROM 3PIN
RFC
AUDIO
4.3
LIMIT
NC
DET SW14
SW4
1.0
SW2
SW NOISE
NC
SW22 L PNR LCH
MIX
2.4
S/N
MIX DET
R
C5517
2.3
L REC LPF
AGC
INPUT_SW(L)
0.1 B
LCH VCO
2.2 R
INPUT_SW(R)
0.6
VREF1
1 2 3 4 5 6 7 8 9 10 11 12 13
2.3 0 2.4 2.1 0 0 0 2.2
0 2.3 2.2 0.5 2.0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
E
F G
FROM IN/OUT
FRONT_A_IN_R
FRONT_A_IN_L
REAR_A_IN_R
REAR_A_IN_L
2.4 0.7 2.4
35 34 33
FROM DIGITAL COMB FILTER
C5550 0.015 B
2.4
TUNER_AUDIO
C5551 50V 0.22 YK
2.1
HIFI ENV.
1.8 TP5501
NC
SW12
D5502
PB REC 1.8 V.REC_ST_H
1SS133
RCH
1.8 HIFI_ENV
VCO
C5556 0.01 B
20
REC LPF
2.5
HIFI_H.SW
HPF
C5549 0.1 F
0
NOISE
DET C5557 0.1 B
L5503
4.9 P.CON+5V_A
LINER FROM/TO Y/C/AUDIO/HEAD AMP
C5559
SW 22uH 0305
0.6 6.3V 47 KA
HOLD HF2
TIMING C5566
C5560 0.01 F
82P CH
0
C5565
CURR
C5558 0.01 F
AMP 82P CH
0.7
- HF1
-
0
+ HF_COM
C5552 0.1 B FSC
0
Y/C_AUDIO
SW15
C5553 0.015 B
H
2.4 NORMAL_A
SW11 C5554 50V 10 YK
L
2.4
C5555_2
FROM REGULATOR1
0.7
25V 10 KA
P.CON+5V_A
14 15 16
0 0
2.4 P.CON+12V
FROM/TO MICON
V.REC_ST_H
HIFI_ENV
HIFI_H.SW
VCR_A_MUTE
SCL
SDA
ST_SELECT
FROM/TO DVD IN/OUT
DVD_A_OUT_L
DVD_A_OUT_R
AUDIO_OUT_L
AUDIO_OUT_R
FROM/TO TV POWER
GND
F G
H
8
7
6
5
4
3
2
PCB010
VMC293
1
H
G-20