Sony HCD-RG295 Servise Manual page 52

HCD-RG295/RG495/RG595
Q Q
3 7 6 3 1 5 1 5 0
• Waveforms
– CD Board – – DECK Board –
IC201 1 (LRCK), 2 (LRCKI) Q453 (Base) (REC mode)
1 wa
(CD play mode)
3.3 Vp-p
22.8 µ s
1 V/DIV, 10 µ s/DIV
IC201 5 (BCK), 6 (BCKI) Q453 (Collector) (REC mode)
2 ws
(CD play mode)
3.3 Vp-p
472 ns
1 V/DIV, 200 ns/DIV
IC201 u; (RFACO)
3
(CD play mode)
T E
L 1 3 9 4 2 2 9 6 5 1 3
Approx.
900 mVp-p
200 mV/DIV, 500 ns/DIV
IC201 <z/, (XTAO)
4
(CD play mode)
2.3 Vp-p
59 ns
1 V/DIV, 20 ns/DIV
w w w
HCD-RG295/RG495/RG595
– MAIN Board –
IC901 qa (XT2 (32.768KHZ))
ea
1.3 Vp-p
30.6 µ s
17 µ s
500 mV/DIV, 5 µ s/DIV 1 V/DIV, 10 µ s/DIV
IC901 qf (X2 (16MHZ))
es
6.1 Vp-p
17 µ s 62.5 ns
2 V/DIV, 5 µ s/DIV
1 V/DIV, 20 ns/DIV
– PANEL Board –
IC701 4 (X2)
ta
239 ns
1 V/DIV, 100 ns/DIV
x a o
. i
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• IC Block Diagrams
– CD Board –
IC203 TK63118SCL-G
VIN 1
THERMAL &
OVER CURRENT
PROTECTION
3 Vp-p
VOLTAGE
GND 2
REFERENCE
ON/OFF
VCONT 3
CONTROL
2.5 Vp-p
IC402 BA5947FM-E2
28 27 26 25 24
Q Q
3 7 6
+ –
INTERFACE
3.5 Vp-p
1 2 5
3 4
– DRIVER Board –
IC701, 712 BA6956AM
TSD
u 1 6 3
y
1 2 3 4 5
52 52
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2 4
8 9 9
–
+
5 VOUT
4 NC
23 22 21 20 19 18 17 16 15
MUTING
D D D D
3 1 5 1 5 0 8 9
INTERFACE
LEVEL SHIFT
INTERFACE
D D D D
VREF
7 9 11 13
6 8 10 12 14
m
c o
CONTROL LOGIC
.
6 7 8 9
2
8 9 9
2 4 9 8 2 9 9