Sony HCD-CP1 / HCD-CP1K Service Manual ▷ View online
HCD-CP1
– 29 –
– 30 –
6-8.
SCHEMATIC DIAGRAM – MAIN Section (3/4) –
•
See page 34 for Waveforms.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TAPE PLAY
(
no mark : TAPE PLAY
(
) : TAPE RECORD
(Page 25)
(Page 31)
(Page 32)
HCD-CP1
– 31 –
– 32 –
6-9.
SCHEMATIC DIAGRAM – MAIN Section (4/4) –
•
See page 34 for Waveforms.
•
See page 36 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : CD PLAY
[
] : TAPE PLAY
〈〈
〉〉
: MD/VIDEO
(Page 30)
(Page 28)
(Page 25)
(Page 25)
(Page 25)
(Page 28)
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(Page 39)
HCD-CP1
– 33 –
– 34 –
6-10.
PRINTED WIRING BOARDS – PANEL/CD LOADING Section –
•
See page 22 for Circuit Boards Location.
• Waveforms
– MAIN Board –
– MAIN Board –
1
Q357, 358 collector (REC mode)
4
IC804
!§
(RCLK)
2
Q360 collector (REC mode)
3
IC804
!£
(XI)
5
IC801
(£
(TEX)
6
IC801
$º
(XTAL1)
11.6
µ
s
13.6 Vp-p
11.6
µ
s
0.5 Vp-p
4.332 MHz
2.9 Vp-p
4.4 Vp-p
840
µ
s
32.768 kHz
2.4 Vp-p
4.19 MHz
5.2 Vp-p
M
M901
DISC TRAY
OPEN/CLOSE
S901
DISC TRAY
CLOSE DET
S902
DISC TRAY
OPEN DET
CN900
1
5
11
1-640-523-
G
LOADING BOARD
05
(Page 23)
(Page 23)
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(Page 24)
– 35 –
– 36 –
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC101, 201
TDA7296
THERMAL
SHUTDOWN
BIPOLAR
TRANSCONDACTANCE
INPUT STAGE
STANDBY/
MUTE
BOOST-
STRAP
MOS GAIN &
LEVEL SHIFTING
STAGE
STBY
-GND
IN–
IN+
IN+ MUTE
NC
BOOSTSTRAP
+VS
–VS
STBY
MUTE
NC
NC
+PWVS
OUT
–PWVS
14 15
12
13
10
11
8 9
6
7
5
3
4
1 2
+
–
MOS
OUTPUT
STAGE
SHORT
CIRCUIT
PROTECTION
IC301
TDA7439
VREF
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
MULTIPLEXER
GAIN AMP
IIC BUS
DECODER &
LATCH
SUPPLY
SDA
CREF
VS
AGND
ROUT
LOUT
SCL
DIG GND
TREBLE (R)
TREBLE (L)
MIN (L)
MOUT (L)
BOUT (L)
BIN (L)
BOUT (R)
BIN (R)
MOUT (R)
MIN (R)
INR
1
2 3 4
5
6
R-IN4
R-IN3
7
8
R-IN2
R-IN1
9
10
MULTIPLEXER
GAIN AMP
L-IN1
L-IN2
11 12
L-IN3
L-IN4
13 14
MUX OUT (L)
15
18
VOLUME
TREBLE
MIDDLE
BASS
SPEAKER
ATTENUATOR
INL
MUX OUT (R)
16
17
27
28
29
30
22 21 20 19
26 25 24 23
IC309
KA3082
GND
OUT1
VCTL
VZ1
VZ2
IN1
IN2
VCC1
VCC2
OUT2
5
6
7
8 9 10
1
2 3
4
DRIVER OUT
PRE DRIVER
LOGIC
SWITCH
TSD
BIAS
IC804
BU1924F-E2 (AEP, UK models)
ANALOG
DIGIT
AL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDA
T
VREF
MUX
VDD1
VSS1
VSS3
CMP
1
4
3
6
5
8
7
2
14
15
16
13
12 11 10
9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
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