Sony HCD-HPZ7 / HCD-HPZ9 Service Manual ▷ View online
73
HCD-HPZ7/HPZ9
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC306
qa
(XCOUT)
500 mV/DIV, 20
µ
s/DIV
2
IC306
qd
(XOUT)
62.5 ns
1.7 Vp-p
500 mV/DIV, 20 ns/DIV
30.5
µ
s
1.4 Vp-p
– AU-TC Board –
3
Q321 collector
(TAPE REC mode)
13.6
µ
s
8.8 Vp-p
5 V/DIV, 5
µ
s/DIV
4
IC201
u;
(RFACO)
(CD PLAY mode)
200 mV/DIV, 500 ns/DIV
5
IC201
<z/,
(XTAO)
(CD PLAY mode)
1 V/DIV, 20 ns/DIV
6
IC201
1
(LRCK)
(CD PLAY mode)
1 V/DIV, 10
µ
s/DIV
7
IC201
5
(BCK)
(CD PLAY mode)
1 V/DIV, 200 ns/DIV
0.5 to 1.3 Vp-p
59.4 ns
2.3 Vp-p
22.8
µ
s
3.3 Vp-p
472 ns
3.3 Vp-p
– BD Board –
74
HCD-HPZ7/HPZ9
• IC Block Diagrams
– BD Board –
IC402 BA5947FM-E2
1
LEVEL SHIFT
MUTING
D
15
16
+
–
+
–
D
D
17
18
D
19
20
VREF
21
22
23
24
25
26
27
28
PREVCC
OPOUT
OUTVREF
CH4CAPA
CH4IN
CH3FIN
CH3RIN
GND
MUTE
POWVCC
CH3OUTF
CH3OUTR
CH4OUTF
CH4OUTR
OPIN
–
2
OPIN+
INTERFACE
14
13
D
12
11
D
10
9
8
7
6
CH2FIN
CH2RIN
GND
5
4
CH1FIN
CH1RIN
VREFIN
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
INTERFACE
D
D
3
SW
INTERFACE
IC602 RT8H015C-T112-1
IC601 STK433-060 (HPZ7:CND)
IC601 STK433-070 (HPZ7:AEP,UK,CET)
IC601 STK403-090-S (HPZ9)
IC601 STK433-070 (HPZ7:AEP,UK,CET)
IC601 STK403-090-S (HPZ9)
PRE DRIVER
IC CH1
1
2
3
4
5
6
7
8
9
10
11
12
PRE DRIVER
IC CH2
BIAS CIRCUIT
–VCC (–VP)
+VCC (+VP)
CH1 OUT
CH2 OUT
+PRE
SUB
GND
CH1 IN
CH1 NF
ST BY
CH2 NF
CH2 IN
C4
C2
C1
C3
TR4
TR6
TR3
TR2
TR5
TR1
R5
R6
R1
R2
R3
R4
R7
R8
SUB
1
2
3
OCP
VP
OUT
OVER LOAD
DETECT
DC
DETECT
4
CT
5
GND
6
VCC
– AMP Board –
75
HCD-HPZ7/HPZ9
– AU-TC Board –
IC302 BD3402AKS2
1
D1
2
D2
3
E1
9
NC
10
NC
11
TAPE 1
12
TAPE 2
13
RECNF2
14
RECOUT2
5
PBNF2
6
PBOUT2
7
PBOUT1
4
E2
8
PBNF1
15
RECOUT1
16
RECNF1
33 VOLOUT1
34 NC
35 NC
36 VIN1
DIGITAL
CONTROL
64
C2
+
−
−
+
−
+
−
ALC
ATT
ALC
17
ALC
18
SC
19
SI
27
NC
28
NC
29
NC
30
NC
20
VDD
21
GND
22
VCC
23
NC
24
FILTER
32
VOLOUT2
25
NC
26
NC
+
−
−
BUFFER
MIX
31
NC
38 VIN2
37 TONE OUT1
48 NC
+
−
−
+
−
+
−
+
−
+
−
+
−
+
−
+
−
−
63
C1
62
B2
61
B1
60
A2
59
A1
45 NC
44 BNF1
42 BOUT2
41 BNF2
39 TONE OUT2
40 NC
47 NC
46 NC
43 BOUT1
58
NC
56
NC
55
NC
57
NC
+
−
INPUT
SELECT
+
−
+
−
54
LINEOUT1
53
LINEOUT2
52
NC
51
NC
49
TNF2
50
TNF1
TONE
CONTROL
TONE
CONTROL
ATT
IC701 BA6956AN
– RELAY Board –
IC801, IC811 BA6956AN
– MOTOR Board –
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
76
HCD-HPZ7/HPZ9
– PANEL (1) Board –
IC801 uPD16315GB-3BS
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
segment driver
Grid driver
Multiplexed driver
39
40
41
42
43
44
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1/KS1
SEG2/KS2
SEG3/KS3
SEG4/KS4
SEG5/KS5
SEG6/KS6
SEG7/KS7
SEG8/KS8
SEG9/KS9
SEG10/KS10
SEG20/GRID9
SEG21/GRID8
SEG22/GRID7
SEG23/GRID6
SEG24/GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
SEG11/KS11
SEG12/KS12
SEG13/KS13
SEG14/KS14
SEG15/KS15
SEG16/KS16
VEE
SEG17/GRID12
SEG18/GRID11
SEG19/GRID10
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