Sony PMC-DR50L Service Manual page 40

PMC-DR50L/DR70L
IC Block Diagrams – MAIN SECTION (2/3) –
r
IC301 TA2068N
24 23 22 21 20 19 18 17 16 15 14 13
1k 1k
10k 10k
1k
LOGIC
MONITOR MONITOR
15k 10k
AMP AMP
6k
6k
10k
7dB 7dB 10k
LINE LINE
BUF AMP BUF AMP
10k 10k
B1 B2
TAPE TAPE
10k 10k
BUF AMP
BUF AMP
A2
A1 MIC
10k MUTE
10k 10k
10k AMP1
ON
ALC1 ALC2
NAB NAB
AMP1 26dB 26dB AMP2
1k
REC
DET
REC
AMP1
AMP2 10k
2.1
REF AMP
1 2 3 4 5 6 7 8 9 10 11 12
IC302 BH3854AFS
32 31 30 29 28 27 26 25 24 23 22 21 20 19
TONE
VR
MATRIX
CONTROL
SURROUND
VR
TONE
1 2 3 4 5 6 7 8 9 10 11 12 13 14
– 74 –
IC Block Diagrams – CD SECTION –
r
IC701 CXA1992BR
IC305 BA338
39 38
9 8 7 6 5 4 3 2 1
PD2 IV
PD1 IV
AMP
PRE AMP
AMP
F. BIAS 40
COMPARATOR
S
B+ Q
F 41
R
COMPARATOR F IV AMP
F.F.
42
E
E IV AMP
COMPARATOR
EI 43
VEE
GND 44
45
TO
E-F BALANCE
LPFI 46 WINDOW COMP.
47
TI
48
ATSC
ATSC
WINDOW
COMP.
49
TZC
DFCT
18 17 TZC COMP.
50
TDFCT
VCC
51
VC
VEE
VCC
FZC 52
15 16
FZC COMP.
1 2
IC702 BA6898FP
28 27 26 25 24 23
D D
LEVEL SHIFT
T. S. D.
REGULATOR, BIAS,
T. S. D. MONITOR
LEVEL SHIFT
D D
1 2 3 4 5 6
37 36 35 34 33 32 31 30 29 28
VEE
RF
SUMMING
AMP
VCC
APC
VEE
LASER POWER CONTROL
VCC
VCC FE AMP VCC
VEE
DFCT
VEE
LEVEL S VEE
VEE
FO. BIAS
WINDOW
VCC IIL
MIRR
COMP. ↓
TTL
FOK
TRK. GAIN
WINDOW COMP.
FOH
FOL
TGH
IIL DATA REGISTER,
TGL
INPUT SHIFT REGISTER,
BALH
ADDRESS DECODER,
BALL
SENS SELECTOR,
ATSC
OUTPUT DECODER
TZC
FZC
DFCTO IFB1-6 FS1-4 TG1-2 TM1-7 PS1-4
BAL1-4
TOG1-4
TM1
VCC
TRACKING
TG1 PHASE COMPENSATION
TM4
VCC
TM7
FOCUS FS1
TM3
PHASE COMPENSATION
VEE
FS2
DFCT Charge
FSET
up
TG2
FS4
VEE
3 4 5 6 7 8 9 10 11 12
22 21 20 19 18 17 16 15
NC
VCC VCC D D
LEVEL SHIFT
DRIVER
MUTE
LEVEL SHIFT
D D
7 8 9 10 11 12 13 14
– 75 –
IC751 CXD2589Q
60 59 58 57 56 55
27
VDD 61
SYSM 62
SERIAL-IN
PWM
INTERFACE
26 SENS2
AVSS 63
IIL
↓
24 SENS1
OVER SAMPLING
TTL
DIGITAL FILTER
AVDD 64
24
C. OUT
23
XRST
65 3rd-ORDER
AOUT1
NOISE SHAPER
AIN1 66
LOUT1 67
22 DATA
68
AVSS
XVDD 69
TIMING
70
XTAI
TTL
LOGIC
↓
21 XLT
SUB CODE
IIL
PROCESSOR
PWM
XTAO 71
20 CLK
19 LOCK
XVSS 72
DIGITAL
VCC 18 VCC
AVSS 73
ISET 17 ISET
LOUT2 74
AIN2 75
VCC
76
16 SLO AOUT2
TM6
77
AVDD
SL-
15
78
AVSS
CPU
INTERLACE
TM5
XRST 79
14 SL+
VEE
VDD 80
TM2
1 2 3 4 5 6 7
13
IC651 TA8409S
STANDBY
BLOCK
HEAT
CUT OFF
BLOCK
1 2 3 4 5 6 7
IN2 VCC OUT2 NC GND VS OUT1
54 53 52 51 50 49 48 47 46 45 44 43 42 41
40 LRCKI
39 LRCK
38 ASYO
37 ASYI
EFM ASYMMETRY
DEMODULATOR CORRECTOR
36 BIAS
35 RF
34 AVDD
33 CLTV
ERROR
16K
CORRECTOR
RAM 32 AVSS
DIGITAL
31 FILI
PLL
30 FILO
29 PCO
D/A
OUT INTERFACE
28
VCTL
OSC
27 V16M
26 VCKI
CLOCK
25 VPCO
GENERATOR
24 TES1
23 TEST
22 PWMI
DIGITAL
SERVO
CLV
AUTO
21 MDP
SEQUENCER
8 9 10 11 12 13 14 15 16 17 18 19 20
r IC Block Diagrams
– WOOFER AMP SECTION –
VREF
IC601 TDA2052
BLOCK
MUTE/
ST-BY
1 2 3 4 5 6 7
8 9
VREF IN1
– 76 –