Sony HCD-ZX70DVD, Service Manual, Page: 123 / 136

HCD-ZX70DVD
25 25
PB EQ AMP
(DECK A)
IC611
PB LEVEL (L)
(DECK A)
REC-L
PB-L
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
CAPSTAN
MOTOR DRIVE
Q396, 397
1
51 (Page 26)
50 (Page 26)
(Page 26)
L-CH
R-CH R-CH
HP101
(PLAYBACK)
PB EQ AMP
(DECK B)
IC601
L-CH
R-CH R-CH
05
R-CH
R-CH
HRPE101 (1/2)
(RECORD/PLAYBACK)
TAPE DECK
BLOCK
(1/2)
ALC
REC
EQ AMP
AMS
CIRCUIT
DOLBY NR
AMP
CIRCUIT
BIAS
CONTROL
CIRCUIT
DOLBY PASS
R-CH
L.P.F.
BUFFER
Q395
M
M1
(CAPSTAN)
HRPE101 (2/2)
(ERASE)
BIAS OSC
T621
B+
(+12V)
R-CH
3
46
28 43
36
40
35 34
39
26
53
19 15 16 18 20 22 23 24 25 17
61 60 59 58 57 56 55 54
31
33
32
+
48
4
2
RV311
PB LEVEL (L)
(DECK B)
RV301
TAPE SPEED
(NORMAL)
RV1002
TAPE SPEED
(HIGH)
RV1001
REC LEVEL (L)
(DECK B)
RV301
REC BIAS (R)
(DECK B)
RV441
REC BIAS (L)
(DECK B)
BIAS OSC
Q621, 622
REC BIAS
SWITCH
Q623
ROTATION
DETECT SENSOR
(DECK A)
IC1001
RV341
BIAS
TRAP
C331, L331
REC/PB SWITCHING
IC602
SYSTEM CONTROLLER
IC401 (1/4)
DECK PROCESS
DECK A/B SELECT, PB/REC EQ AMP,
DOLBY NR AMP, ALC, AMS
IC301
AIN (L)
BIN (L)
MAOUT
PB OUT (L)
EQ OUT
(L)
MSIN
MSOUT
BIAS ON/OFF
70
120
BIAS (N)
BIAS (C)
BIAS (M)
S1004
A 120/70 B NORM/CROM ALC ON/OFF PB A/B NORM/HIGH NR ON/OFF RM ON/OFF REC/PB/PASS LM ON/OFF
(DECK A 120/70)
69
S1003
S1001
(DECK A PLAY)
S1002
(DECK B PLAY)
(DECK A HALF)
S1008
(DECK B 120/70)
27
REC OUT (L) ROUT (L) RIN (L) ALC (L) EQ IN (L) ALC IN (L)
44 38
63
AMS-IN
89
A-SHUT
ROTATION
DETECT SENSOR
(DECK B)
IC1002
90
B-SHUT
TRIGGER
PLUNGER DRIVE
(DECK A)
Q393, 394
65
A-TRIG
TC-MUTE
R/P-PASS
NR-ON/OFF
REC-MUTE
BIAS
EQ-H/N
PB-A/B
ALC
TC-RELAY
A-PLAY B-PLAY A-HALF
91
S1006
(DECK B HALF)
S1009
(DECK B REC)
S1005
(DECK A REC)
B-HALF
TRIGGER PLUNGER
(DECK A)
TRIGGER
PLUNGER DRIVE
(DECK B)
Q391, 392
66 47
B-TRIG
67
68
CAP-M-H/L
CAPM-CONT
TRIGGER PLUNGER
(DECK B)
70 71
52
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: TAPE A PLAY
: TUNER
: TAPE B PLAY
: TAPE B REC
+5V
48 46 49 52 50 51 21 20
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
RDS-DATA
RDS-INT
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
RDS-DATA
RDS-INT
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
RDS-DATA
RDS-INT
ST-DIN
ST-R
ST-L
ST-DOUT
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
RDS-DATA
RDS-INT
R-CH
TUNER PACK
FM ANT
ANT GND
ANT GND
AM ANT
ST-L
FM 75
Ω
(AEP, UK)
(EXCEPT AEP, UK)
AM
FM
75
Ω
(AEP, UK)
TAPE DECK
BLOCK
(2/2)
(AEP, UK)
6-5. BLOCK DIAGRAM – TUNER/TAPE DECK Section –