Grundig UMS 15 Servicehandbuch Seite 14

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
IC-Blockschaltpläne / IC Block Diagrams
IC101 CXP83240A (CMOS 8bit 1chip Microcomputer)
45
AN0 to AN7 30~37 8 A/D CONVERTER
54~88
SEG0 to SEG39 40
94~98
COM0 to COM3 50~53 4
LCD
46
VL CONTROLLER/
VLC1 49
DRIVER
VLC2 48
VLC3
47
PWM 4
14 BIT PWM GENERATOR
RMC 3
REMOCON
CS0 7
SERIAL
SI0 9
INTERFACE
SO0 10
UNIT 0
SCK0 8
SI1 12
SO1 13
SERIAL INTERFACE UNIT 1
SCK1 11
EC0 8 BIT TIMER/COUNTER 0
99
8 BIT TIMER 1
TO 5
16 BIT CAPTURE
CINT 6
TIMER/COUNTER 2
EC1
100
ADJ 5
IC201 M62439SP (Sound Control)
REC OUT 1 1
REC OUT SW
INA1 2 INPUT SW
INB1
3
MONO SW
INC1
4
MUTE
IND1
5
VOLUMR
TONEH1 6
TREBLE
BOOST
TONEL1
7
OUT 1 8
BASS
BOOST
GND 9
CONTROL
VDD
10
IC501 TDA7269 (Stereo Amplifier)
VSS
3
MUTE 5
+
7
IN-L
-
9
GND
-
IN-R 11 +
1 6
IN-R IN-R
3 - 2
44 99 1 2
100
FIFO
FIFO
2 2
2
2
20 REC OUT 2
19 INA2
INB2
18
INC2
17
IND2
16
VOLUMR
TONEH2
15
14
TONEL2
13 OUT 2
12 VSS
CONT
11
LOGIC
4
OUT-L
8 IN-L
10
IN-R
2
OUT-R
93 92 43 42 39
SPC700 CLOCK GEN/
CPU CORE SYSTEM CONTROL
ROM RAM
40K BYTES 1120 BYTES
PRESCALER/ 32KHz
TIME BASE TIMER TIMER/COUNTER
IC401 AN7348K (PLAY / REC Pre Amplifier)
24 23 22 21 20
A/Rec
Mute
B
PB Amp(L)
PB Amp(R)
A/Rec
Mute
B
2 4
1 3 5
40 38 89 41,91
8 30~37
8 6~13 PB0 to PB7
8 14~21
8 70~77
99,100,
5
1~3
2 4,5
PE5 to PE6
8 78~85
86~88
8
94~98
8 22~29
19 18 17 16 15 14
R
P
ALC
P
R
Rec
Nor/Cro
Amp(L)
& Hi/Lo
Logic
Rec
Amp(R)
R
P
Logic
Rejection
A/B
Logic
Rec/PB
6 7 8 9 10 11
GRUNDIG Service
UMS 15
PA0 to PA7
PC0 to PC7
PD0 to PD7
PE0 to PE4
PF0 to PF7
PG0 to PG7
PH0 to PH7
13
Ripple
12