JVC TH-A5R Service Manual

TH-A5R
1-25
LC86P6548 (UIC1) : Microcontroller
1.Pin layout
S48/PG0
S49/PG1
S50/PG2
S51/PG3
P00
P01
P02
P03
VSS2
VDD2
P04
P05
P06
P07
P10/SO0
P11/SI0/SB0
P12/SCK0
P13/SO1
P14/SI1/SB1
P15/SCK1
S47/PF7 S46/PF6 S45/PF5 S44/PF4 S43/PF3 S42/PF2 S41/PF1 S40/PF0 VDD4 S39/PE7 S38/PE6 S37/PE5 S36/PE4 S35/PE3 S34/PE2 S33/PE1 S32/PE0 S31/PD7 S30/PD6 S29/PD5 S28/PD4 S27/PD3 S26/PD2 S25/PD1 S24/PD0 S23/PC7 S22/PC6 S21/PC5 S20/PC4 VP
P16/BUZ
P17/PWM0
P30 P31 P32 P33 P34 P35 P36 P37
P70/INT0
RES
XT1/P74 XT2/P75
VSS1
CF1 CF2
VDD1
P80/AN0 P81/AN1 P82/AN2 P83/AN3 P84/AN4 P85/AN5 P86/AN6 P87/AN7
P71/INT1
P72/INT2/T0I P72/INT3/T0I
S0/T0
S19/PC3
S18/PC2
S17/PC1
S16/PC0
VDD3
S15/T15
S14/T14
S13/T13
S12/T12
S11/T11
S10/T10
S9/T9
S8/T8
S7/T7
S6/T6
S5/T5
S4/T4
S3/T3
S2/T2
S1/T1
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
1 2 3 4 5 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
2.Block diagram
Interrupt Control
A15-A0
D7-D0
TA
CE
OE
DASEC
Standby Control
Clock
Generator
CF
RC
X’ tal
Base Time
r
SIO0
SIO1
Timer 0
Tim
er 1
ADC
INT0-3
Noise Filt er
SIO Auto
matic
transmission
RAM
128 by
te
s
VFD
Controller
High voltage Output
Bus Interface
Port 1
Port 3
Port 7
Port 8
IR PLA
PROM
Control
PROM(48KB)
PC
ACC
B Register
C Register
A
LU
PSW
RAR
RAM
Stack Poi nter
Port 0
Watchdog Timer

JVC TH-A5R Specifications

General

Brand	JVC
Model	TH-A5R
Category	Home Theater System
Language	English