Ic Block Diagrams - Sony HCD-G2500 Service Manual

HCD-G2500/XB20/XB22

5-15. IC BLOCK DIAGRAMS

IC101 (MAIN BOARD) LA1186 IC103 (MAIN BOARD) LC7218-ST IC03 (MAIN BOARD) BA5941FP
RF IN 1 X OUT
24
2 RF
BYPAS 23 VSS
28
MIX IN 3 VREF
REFERENCE PHASE DETECTOR 22 PD2
XIN 1
GND 4 DIVIDER CHARGE PUMP 21 PD1
MIX
GND 5 20 VDD
IF 6
REG
SWALLOW COUNTER
AFC 7
1 / 2 19 FM IN
1/16 . 1/17 BIT
OSC 8 OSC BUF
VCC 9 12 BIT
18 AM IN
CE 2 PROGRAMMABLE DIVIDER
DI 3
CL 4
17 OUT 6
DO 5
16 HCTR
SYC 6
15 LCTR
UNIVERSAL
SHIFT REGISTER
IN0 7 LATCH COUNTER
IN1
8
14 OUT 5
OUT0 9
13 OUT 4
OUT1 10
Vcc
OUT2 11
OUT3 12
1
IC102 (MAIN BOARD) LA1831 IC602 (FRONT BOARD) BU2092
OSC/FMSD OSC AFC AM RF SMET AM HPF AF DET MPX VCO MPX IN R OUT L OUT PL DET
24 23 22 21 20 19 18 17 16 15 14 13
ALC
AM
CONTROL
AM AM RF AMP MUTE DECORDER
CIRCUIT
OSC MIX
AGC STEREO SW
BUFFER
AM IF AM DET
STEREO DRIVE
TRIG
1 2 3
AM/FM FF
IF BUFE
COMP PILOT
LEVEL DET
DET TUNING
S-CURVE
DRIVE
AM AM/FM
VCO
SW
FM DET PHASE
FM
DET
FM IF REG GND VCC
1 2 3 4 5 6 7 8 9 10 11 12
FM IF AM MIX REG AM IF GND TU LED ST IND FM DET VCC AM/FM PH DET PH DET
— 68 —
IC01 (CD DECODER BOARD) CXA1782BQ
36 35
27 26 25 24 23 22 21 20 19 18 17 16 15
NC
– +
Vcc
+ – + –
LEVEL SHIFT
LEVEL SHIFT
+
LEVEL SHIFT
–
+
LEVEL SHIFT
–
– + + – – + + –
MUTE Vcc
2 3 4 5 6 7 8 9 10 11 12 13 14
FE BIAS 37
F 38
IC301 (CD DECODER BOARD) LC75392
E 39
LVROUT 1 30 RVROUT
18 17 16 15 14 13 12 11 10
EI 40
12 BIT
SHIFT
REGISTER
LVRIN 2 29 RVRIN
OUTPUT
12 BIT BUFFER
STORAGE (OPEN DRAIN)
+
REGISTER LTOUT 3 28 RTOUT
–
VEE 41
4 5 6 7 8 9
TEO 42
LTCOM 4 27 RTCOM
LT4 5 26 RT4
LATCH
LT3 6 25 RT3
LT2 7 24 RT2
LPFI 43
TEI 44
LT1 8 DECODER 23 RT1
ATSC 45
L4 9 22 R4
TZC 46
L3 10 21 R3
TDFCT 47
SHIFT
REGISTER
L2 11 20 R2
VC 48
L1 12 19 R1
VDD 13 18 VREF
CL 14 17 VSS
CONTROL
DI 15 16 CE
— 69 —
5-16. IC PIN FUNCTION DESCRIPTION
IC601 LC866528A-5G83 (FRONT BOARD)
Pin No.
1
2
3
34 33 32 31 30 29 28 27 26 25
4
5
+
– 6
+
+
7
8
+
+ 9
+
10
APC LEVELS
11
12
+ +
13
+ IIL 24 SENS
–
14
+
MIRR
15
RF IV AMP1 DFCT
TTL
23 C. OUT 16
17
18
– 22 XRST
19
TTL
RF IV AMP2 21 DATA 20
TTL • IIL DATA RESISTOR • INPUT SHIFT RESISTOR 21
• ADDRESS DECODER 20 XLT
+ IIL 22
23
IIL • OUTPUT DECODER 19 CLK
24
–
25
–
TOG1-3 FS1-4 TG1-2 TM1-7 PS1-4 26
F IV AMP
BAL1-3
18 VCC 27
– FZC COMP
28
E IV AMP + 29
+ +
30
TE AMP
–
31
• TRACKING
32
• ISET 17 ISET
• PHASE
HPF COMP LPF COMP
COMPENSATION 33
– 34
TM6
TG1
–
35
16 SL 0
36
TM5
+
TM4 15 SL M 37
–
• FCS PHASE 38
TZC COMP
COMPENSATION
14 SL P 39
TM3 TM2
DFCT
40
• WINDOW COMP FS1
TM1
TM7
ATSC 13 TA O 41
FS2
42
DFCT
43
– 44
FS4
45
46
1 2 3 4 5 6 7 8 9 10 11 12
47
48
49
50
— 70 —
Pin Name I/O Description
POWER OUT O Power on/off output
S. MUTE O System mute output (ON at H)
TU. MUTE OUT O Tuner mute output (ON at H)
TUNED OUT O Tuned output (ON at H)
DBDF NORMAL O DBDF normal output (ON at H)
DBDF HIGH O DBDF high output (ON at H)
SURROUND OUT O Surround output (ON at H)
FLAT O Preset EQ flat output (ON at H)
— — Not used
FUNCTION TAPE
O Function tape selector output
OUT
— — Not used
RESET I Reset input
POWER DOWN IN I Power down in (AC on at H, AC off at L)
— — Not used
VSS — System Vss
X'1 I X'tal oscillator 6.0 MHz
X'2 I X'tal oscillator 6.0 MHz
VDD1 — System VDD 1
K4 I Key input 4
K3 I Key input 3
K2 I Key input 2
K1 I Key input 1
K0 I Key input 0
SPEANA IN 1 I Spectrum analyzer 1
SPEANA IN 2 I Spectrum analyzer 2
SPEANA IN 3 I Spectrum analyzer 3
CXD 2508A SCOR I CXD 2508A SCOR input
COUNT I CXD 2508A COUNT input
REMOTE IN I Remote in
1G O FLD digital output 1
2G O FLD digital output 2
3G O FLD digital output 3
4G O FLD digital output 4
5G O FLD digital output 5
6G O FLD digital output 6
7G O FLD digital output 7
8G O FLD digital output 8
9G O FLD digital output 9
10G O FLD digital output 10
11G O FLD digital output 11
12G O FLD digital output 12
13G O FLD digital output 13
14G O FLD digital output 14
15G O FLD digital output 15
P1 O FLD segment output 1
VDD — FLD VDD
P2 O FLD segment output 2
P3 O FLD segment output 3
P4 O FLD segment output 4
P5 O FLD segment output 5
— 71 —
Pin No. Pin Name I/O Description
51 –VPP — FLD VDD
52 P6 O FLD segment output 6
53 P7 O FLD segment output 7
54 P8 O FLD segment output 8
55 P9 O FLD segment output 9
56 P10 O FLD segment output 10
57 P11 O FLD segment output 11
58 P12 O FLD segment output 12
59 P13 O FLD segment output 13
60 P14 O FLD segment output 14
61 P15 O FLD segment output 15
62 P16 O FLD segment output 16
63 P17 O FLD segment output 17
64 P18 O FLD segment output 18
65 P19 O FLD segment output 19
66 P20 O FLD segment output 20
67 P21 O FLD segment output 21
68 MODE SW IN I Destination selector switch input
69 — — Not used
70 — — Not used
71 — — Not used
72 VDD — FLD VDD
73 FM ST IN I FM stereo indicator input
74 CD SYNCHRO IN I CD Synchro start input
75 CXD2580A SENS I CXD 2508A SENS input
76 FOK I
CXD 2508A FOK input
77 UP SWITCH I Changer mechanism UP switch input
78 TABLE SENSOR I Table sensor switch input
CD DOOR
79 I CD door switch input
SWITCH
80 — — Not used
81 VR + I VR encorder (+) input
82 VR – I VR encorder (–) input
83 CD ENCORDER IN A I CD encorder input A
84 CD ENCORDER IN B I CD encorder input B
85 — — Not used
86 — — Not used
87 BU2114 LATCH O BU2114 LATCH output
BU2092 LOCK
88 O BU2092 LATCH output
LATCH
89 VSS2 — System Vss 2
90 VDD2 — System VDD 2
91 HC4094 STB O SN74HC4094 STB output
92 LV1030 ENABLE — LV1030 enable
93 7218, 75392 STB O LC7218, LC75392 STB output
94 CXD2508A XLAT O CXD 2508 A XLAT output
95 CXD2508A DATA O CXD 2508 A out A output
96 SQSO O SQSO output
97 SQCK,CLOK O SQCK clock output
98 SQ O Serial data output
99 SI I Serial data input
100 SCK O Serial clock output
— 72 —