Nicam - Sanyo VHR-VT821A Service Manual

A B
8
7
6
5
4
3
2
1
A B
55
C D
NICAM SCHEMATIC DIAGRAM
(SYSCON PCB)
W863
W864
C6616
47P SL
W832
NC NC NC
4.8 4.8 2.3 1.2 1.3 4.8 0 4.8 2.3 2.3 2.3
33 32 31 30 29 28 27 26 25 24 23
0
NC
4.8
C6605_1
0.1 F
W845 0
VSSD4 VSSA2
1 OUTL 23 SIF2
0
NC P1 ADDR2
2 OUTR 24 V REF1
C6602
2.5

10 NICAM

32 WS
MONOIN
I REF
50V 1 KA
2.5
11 TP1 33 SCK
NC EXTIR TEST2
12 PCLK 34 SYSCLK
2.5
NC EXTIL XTALO
13 ADDR1 35 VDDD4
C6603
2.5
V REF2
XTAL1
21 VDDA2 43 VDDA3
C6604_1
6.3V 47 KA 0
22 TEST1 44 VSSA3
NC P2 V TUNE
0.01 B
W870 5.1
0
W846
NICAM IC
1 2 3 4 5 6 7 8 9 10 11
4.8 4.8
IC6601 2.5 2.5 5.1 0 0 4.8 0 4.8 4.8
NC NC
NC NC NC
TDA9874H
C6611 C6613
0.01 F
0.1 F
NOTE: THE DC VOLTAGE AT EACH PART WAS NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C D
E F
0
W852 W834
C6628_1
4.8
0.1 F
W853
0
W854
0
R6613
2.5
8.2K
C6621
0 W855
22P CH
2.8 C6624 22P CH
X6601 L6601 D6601
3.5
100CT02401 MA367
R6614 3.3uH
R6616
2.5
10K 39K C6626
0
0.033 B
4.8
NC
R6615 C6629
39K 0.33 B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
E F
G H
FROM/TO SYSCON/SERVO/TIMER
IIC_DATA
IIC_CLK
FROM POWER
P.CON+5V
GND
FROM/TO TUNER/HI-FI
SIF/TU_A_[R]
TUNER_AUDIO_R
TUNER_AUDIO_L
TU_A_OUT
G H
8
7
6
5
4
3
2
PCB010
VMA231
1
56