Block Diagram - Sony CMT-SP55TC Service Manual

7-1. BLOCK DIAGRAM

TAPE MECHANISM ASSY
CMAL2Z720A
IC201
L
REC/PB HEAD
R CH
R
IC101
3 1
P R
HRPE101
REC/PB
ERASE BIAS
ERASE HEAD X
CAPSTAN
M
MOTOR
RV362
TAPE
SPEED
SOLENOID
CRO2
PACK
FREC
PREC
PLAY
10 OUT 2
LOADING
M
MOTOR
2 OUT 1
OUT SW
IN SW
S911 S910
09
A
M L
+7V -7V
16 21 50
VCC VEE
PB-A/B
70
48
120
46
RV211
PLAYBACK
RV401
LEVEL
REC LEVEL
EQ OUT EQ IN
36 38
RV311
REC
BIAS
4
T501
Q502,503
REC BIAS +7V
Q501
BIAS
OSC
-7V
27 TC-RELAY
Q601,602
+MTR
MOTOR
17 +MTR
DRIVE
+12V
Q603,604
SOL
29 +SOL
DRIVE
+12V
38 PACK
39 B-HALF
28 PLAY SW
33 40
SENSOR OUT
IC601
MOTOR DRIVE
IN 2 6 37 LOAD OUT
LOAD IN
IN1 5 36
LOAD OUT SW
35
34 LOAD IN SW
S901
z REC
S909 S908 S907 S906 S905 S904 S903 S902
l m S H h DOLBY NR CD SYNC
REC
s DIRECTION
AMS
IC401
DDOLBY NR
28 27 26
MS
PAS
PB OUT
40
LM ON/ TC.M
DOL
25
OFF
DOLBY NR
NORM/
18
HIGH
DOLBY
NR ON/
23
OFF
REC.PB.P
24
PB
REC OUT
DOLBY
39 LIN
TYPE B
43
BIAS ON/OFF BIAS
BIAS SW
20
REC.M
RM ON/OFF 22
B NORM/CROM/ ALC
ALC ON/OFF 22
METAL
33 19
AMS
AMS IN 8
TC.M
TC-MUTE 32
DOLBY
DOLBY 7
REC.PB.P
PASS/PB/REC 30
BIAS
BIAS 16
REC.M
REC MUTE
31
ALC
ALC
33
IC701
SYSTEM
CONTROL
I2C-DATA 14
I2C-CLK 13
6
DOWN
1
VCC
RESET 18
41 42 24 25 26 23 22
Q701-705
LED DRIVE
D911 D912 D913 D914 D915
S H h CD SYNC REC
z REC
15 15
CN701
5 TC-L
R-CH 1 TC-R
6
REC-L
8
R-CH REC-R
AGND 3 AGND
7 AGND
DGND 13
DGND
MGND 18 MGND
I2C-DATA
14
12 I2C CLK
11
PDOWN
IC603
+5V
+5V 3 1 19 +UNREG(H)
REG.
IC602
+12
+12V 3 1
REG.
IC604
+7V
+7V 3 1 17 +UNREG(L)
REG.
IC605
-7V
-7V
3 2 16
-UNREG(-)
REG
IC702
D603
3 RESET. 1 15
D+5.6V
• R-ch is omitted due to same as L-ch.
• Signal Path
: PB
: REC
TC-SP55
SYSTEM
CONTROL
3
(FROM ST-SP55)