Read Sony CMT-SP55TC / TC-SP55 Service Manual online
15
15
TC-SP55
7-1. BLOCK DIAGRAM
: PB
: REC
: REC
•
Signal Path
•
R-ch is omitted due to same as L-ch.
DOLBY
TYPE B
Q502,503
BIAS
OSC
IC201
ERASE BIAS
L
R
RV211
REC/PB HEAD
TAPE MECHANISM ASSY
CMAL2Z720A
R CH
3
1
IC101
REC/PB
EQ OUT
T501
REC BIAS
46
48
16
21
50
PB-A/B
EQ IN
38
36
RV401
REC LEVEL
39
REC OUT
BIAS SW
70
120
+7V
-7V
Q501
LIN
43
PB
18
20
22
40
25
PB OUT
LM ON/
OFF
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
B NORM/CROM/
METAL
NORM/
HIGH
PAS
DOL
P
R
X
DOLBY NR
RV311
REC
BIAS
PLAYBACK
LEVEL
33
23
24
NR ON/
OFF
VCC
VEE
28 27
26
MS
19
27
17
29
37
36
35
34
41 42
24
25
26
23
22
8
32
7
30
16
31
33
14
13
6
HRPE101
ERASE HEAD
22
3
1
6
8
5
7
13
18
14
12
11
19
17
3
1
+5V
REG.
+12
REG.
3
1
SYSTEM
CONTROL
3
(FROM ST-SP55)
+UNREG(H)
+UNREG(L)
-UNREG(-)
DGND
MGND
I2C CLK
PDOWN
IC603
IC602
IC604
IC605
I2C-DATA
AGND
TC-R
REC-L
REC-R
TC-L
AGND
AGND
DGND
MGND
-7V
REG
16
-7V
+5V
15
3
1
RESET.
D+5.6V
+12V
+7V
REG.
3
1
3
2
+7V
1
18
D603
IC702
l m
M L
s
H
A
h
z
REC
S
H
h
z
REC
S
Q701-705
LED DRIVE
D911
D912
CD SYNC REC
D913
D914
D915
DOLBY NR
DIRECTION
CD SYNC
REC
S911
S910
S909
S908
S907
S906
S905
S904 S903
S902
S901
4
39
38
28
33
40
CAPSTAN
MOTOR
M
LOADING
MOTOR
M
10
6
2
5
IC601
MOTOR DRIVE
RV362
TAPE
SPEED
Q603,604
SOL
DRIVE
SOLENOID
+12V
Q601,602
MOTOR
DRIVE
+12V
CRO2
PACK
FREC
+MTR
PREC
PLAY
R-CH
R-CH
D623
D624
D622
D621
AMS IN
TC-MUTE
DOLBY
PASS/PB/REC
BIAS
REC MUTE
ALC
DOLBY
BIAS
REC.M
ALC
REC.PB.P
TC.M
AMS
I2C-DATA
I2C-CLK
DOWN
VCC
RESET
KEY1
KEY0
PAUSE LED
FWD LED
REV LED
REC LED
SYNC REC
LED
TC-RELAY
+MTR
+SOL
PACK
SENSOR OUT
B-HALF
PLAY SW
LOAD OUT
LOAD IN
LOAD OUT SW
LOAD IN SW
OUT SW
IN SW
OUT 2
OUT 1
IN 2
IN1
IC401
DDOLBY NR
AMS
DOLBY
TC.M
REC.PB.P
BIAS
REC.M
ALC
+7V
-7V
09
IC701
SYSTEM
CONTROL
CN701
Click on the first or last page to see other CMT-SP55TC / TC-SP55 service manuals if exist.