Block Diagram - Audio Section - Sony SS-CM90 Service Manual

6-5. BLOCK DIAGRAM – AUDIO Section –
REC-L
M
(Page 32)
DVD-L
J
(Page 31)
TC-L
L
L4
(Page 32)
11
L3
12
TU-L
L2
K
13
(Page 32)
L1
14
SJ302
L
AUDIO IN
MD (VIDEO)
R
R-CH
R-CH : R-ch is omitted due to same as L-ch.
SIGNAL PATH
: DVD/CD PLAY (AUDIO)
: TUNER (FM/AM)
: TAPE PLAY
: REC
: MD (VIDEO)
INPUT
LSELO LIN LOUT
VOLUME TONE
SELECT 10 9 5
CONTROL CONTROL
SWITCH
INPUT SELECT SWITCH,
CPU
ELECTRICAL VOLUME,
INTERFACE
TONE CONTROL
IC323 (SUFFIX-14)
IC323 (SUFFIX-16)
1 30 2
8 10 4
INVERTER
IC302 (1/2) (SUFFIX-11)
IC302 (1/2) (SUFFIX-12)
9 11 3
87 88 86
IC324 (SUFFIX-14)
IC324 (SUFFIX-16)
HEADPHONE AMP
IC324
R-CH
IN+
3
4
IN+
MUTING
MUT
Q100
STANDBY/MUTE
R-CH
MUTE STBY
10 9
MUTING POWER ON
CONTROL SWITCH MUTING
R-CH
Q312, 313 Q330
COM +12V
D309
12 2
IC302 (2/2) (SUFFIX-11)
IC302 (2/2) (SUFFIX-12)
13 1
81 89 84
SYSTEM CONTROLLER
IC306 (3/4) (SUFFIX-11) IC306 (3/4) (SUFFIX-12)
33 33
R-CH
MUTING
Q408, 409
MOS GAIN & MOS SHORT
OUT
+
LEVEL SHIFT OUTPUT CIRCUIT 14
ING STAGE STAGE PROTECTION
–
–
R-CH
POWER AMP
+
IC101 (SUFFIX-14) IC101 (SUFFIX-16)
R-CH
R-CH
DC DETECT
Q310, 311
INVERTER
50 100
HCD-M90
J301
PHONES
L SJ301
SPEAKER
IMPEDANCE
USE 6 – 16Ω
R