Panasonic DMR-EZ49VEG, Руководство по обслуживанию

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S-11
S3.4. Analog Audio Block Diagram
S3.4.1. Analog Audio Block Diagram (1)
DEC AUD L
D3R8VL
DEC AUD R
FROM
Backend P.C.B.
FROM
DIGITAL IF P.C.B.
VCR_R_IN
VCR_L_IN
59
TU2 A LIN
TU_P_ON_H
TU2 A RIN
51
55
63
SCL
SDA
SIF OUT
ACT_TV_5V
AUDIO OUT
I2C_CLK
I2C_DATA
10
9
(SA4L)
SELECT SWITCH
OUTPUT
AV2
(DECODER/EXT)
(TV)
AV1
1.0V
5V
2.3V
:PB SIGNAL :REC SIGNAL
IEC OUT
1
(DIGITAL AUDIO OUT)
OPTICAL
IC9700
P.C.B.
DIGITAL
FROM
P59001 P9703
44
AADC_L
AADC_R
AUDIO OUT Ch1(L)
AUDIO OUT Ch2(R)
AUDIO OUT Ch2(R)
AUDIO OUT Ch1(L)
P.C.B. DIGITAL
TO
TO/FROM
SYSTEM
CONTROL &
SERVO SECTION
P9703
31
P59001
P9703 P59001
29
(DECEODER/EXT)
AV2
1
3
(TV)
AV1
3
1
21 PIN JACK
JK3901
LOGIC
IIC BUS
SDA
89
88
SCL
IIC DATA
IIC CLK
71
AV1 Lch
78
ADC Lch
73
AV2 Lch
74
AV2 Rch
79
ADC Rch
AV1 Rch
72
LPF
BUFF.
MUTE
AGC
AMP
ADC Lch
LPF
BUFF.
MUTE
LPF
BUFF.
MUTE
d
c
b
a
MUTE
BUFF.
LPF
AMP
ADC Rch
AGC
MIX
+ VCA MUTE
U/V TUNER
TU7801
RF OUT
76
TUN Lch
62
54
TUN Rch
(SA18L)
BUFF.
e
d
c
b
a
(SA1L)
e
d
c
b
a
(SA3L)
e
d
c
b
a
(SA2L) 58
AV3 Lch (FRONT)
AV3
FRONT INPUT JACK
JK4801
AUDIO
(Lch/MONO)
LINE
(Rch)
LINE
4
5
1
2
3
d
c
b
a
(SA4R)
SELECT SWITCH
OUTPUT
AV3 Rch
50
(SA18R)
BUFF.
e
d
c
b
a
(SA2R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
AUDIO IN ch1(L)
AUDIO IN ch2(R)
21 PIN JACK
JK3901
6
2
6
2
AV2 Lch
61
AV2 Rch
53
AV1 Lch
AV1 Rch
DAC Lch
DAC Rch
60
52
e
d
c
b
a
(SA3R)
e
d
c
b
a
(SA1R)
(A/V SIGNAL PROCESSOR)
IC3901
64
56
MIX L OUT DM
MIX R OUT DM
P.C.B. DIGITAL
FROM
P59001 P9703
39
41
P9703 P59001
OPEN
AV4
TUN
AV4
TUN
(SA17L)
(SA17R)
P9103 P6003
19
P9103 P6003
17
PP4801 PS6002
7
PP4801 PS6002
5
FRONT JACK P.C.B.
F_INPUT_R
F_INPUT_L
PS90001 P7401
1
P9104 P6004
10
PS90001 P7401
3
VHS_OUT_R
VHS_OUT_L
MUTE
FM MUTE H
IC6001- 25
IC6001- , 71 IC3001- 73
IC6001- , 72 IC3001- 74
QR4911
MUTE
QR4913
MUTE
QR4912
P6003
13
P9103
P6003 P9103
15
MIX_R_OUT_DM
MIX_L_OUT_DM
F
E
D
C
B
A
IIC_CLK
IIC_DATA
AADC_L
AADC_R
H
G
SIF2
AVDD1.5V RS1B
AOUTR
G_TU_R_A
G_TU_L_A
(AUDIO MULTIPLEXER)
[ Only for EG model ]
IC7301
18
AOUTM 2
7
36
34
23
AOUTL 12
6
1
DIGITAL IF P.C.B.
MAIN P.C.B.
DIGITAL IF P.C.B.
DMR-EZ49VEG/EC/EB
Analog Audio (1/2) Block Diagram
FROM
SYSTEM & CONTROL
SERVO SECTION
CNT
VIN VOUT
(REG. +1.5V)
[ Only for EG model ]
IC7304
(REG. +5V)
[ Only for EG model ]
IC7801
(REG. +1.5V)
[ Only for EG model ]
IC7302
1 5
3
VIN
CONT
VOUT
1
5
3
VDD OUT 5 4
7
SYSTEM CTRL SECTION
IC6001- 62
REG. +5.8V