Sony HCD-ZX66i Service Manual page 60

HCD-ZX66i/ZX99i
• IC Block Diagrams
IC251 BA5947FM-E2 (BD81A Board)
CH4OUTR 19 D D 18 CH1PUTF
CH1OUTR
CH4OUTF 20 D D 17
21 CH2OUTF
CH3OUTF D D 16
19k
PIN26
6.5k
CH3OUTR 22 15 CH2OUTR
D D
10k
Vref
POW
POW
VCC VCC
POWVCC 23 14 POWVCC
(ch3, 4) (ch1, 2)
50k 50k
50k 50k
MUTE 24 POW 13 CNF4
VCC
50k 50k
GND 25 12 GND
Vref
GND C-M
26 11
10 C-P
PREGND 27
CT 28 9 VG
CH3RIN 29 8 CH2RIN
CH3FIN
30 7 CH2FIN
100k
CH4IN 31 6 CH1RIN
PIN3
CH4CAPA 32 5
CH1FIN
10k
50k
OUTVREF 33 SW 4 SW
DPOUT 34 3 OPIN+
Pre
2
TREVCC 35 OPIN-
Vcc
NC 36 1 NC
HCD-ZX66i/ZX99i
IC301 TC94A34FG-002 (BD81A Board)
32 31 30 29 28 27 26 25
RAS 33
CAS
34
OE 35
BUCK 36
CCE 37
38
AD12
AD11 39
VDDM 40
SRMSTB 41
VDDT 42
AD10 43
AD9 44
Bus
Switch
AD8 45
AD7 46
AD6 47
AD5 48
VCO
49 50 51 52 53 54 55 56
24 23 22 21 20 19 18 17
LRCKIA
16
15 BCKIA
14 SDI0
13 LRCKO
12
BCKO
11
SDO0
10
VSS
9 VDDT
8 MIACK
7 MICK
6 MIDIO
5 MILP
4 MICS
3 STANBY
2 RESET
1
VDDP
Timing
Generator
57 58 59 60 61 62 63 64
60 60
IC501 BA00BC0WCP-V5E2 (MAIN Board (1/3))
VDD
–
VREF
DRIVER
+
THERMAL OVER CURRENT
SHUT DOWN PROTECT
1 2 3 4 5
IC514 BA6956AN (MAIN Board (1/3))
IC515 BA6956AN (MAIN Board (1/3))
TSD
CONTROL LOGIC
1 2 3 4 5 6 7 8 9