Block Diagram – Tuner/Tape Deck Section - Sony HCD-ZX70DVD Service Manual

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