Dc-Spannungen - Grundig GREENVILLE 7008/5 TOP Service Manual

GRUNDIG Service
DC-Spannungen / DC Voltages
IC101 (TDA956x / OM836x)
Pin Description
1 Volume +/–
2 Status 1
3 Status 2
4 Digital ground for u-controller
5 nc.
6 Standby oon/off
Analog GND of text decoder and
7
digital GND of TV processor
8 SECAM PLL decoupling
9 2nd supply voltage TV processor (8V)
Supply voltage decoupling of digital GND
10
of TV processor
11 Phase 2 filter
12 Phase 1 filter
13 GND 3 for TV processor
14 Decoupling bandgap
AVL (90 versions) /
15
East/West drive signal (110° versions)
16 V-drive B output
17 V-drive A output
18 IF-1 input
19 IF-2 input
20 Reference current input
21 Vertical sawtooth capacitor
22 Tuner AGC output
23 Sound IF input 1
24 GND
25 GND
26 Norrow band PLL filter
27 AVL (Automatic volume levelling)
28 Extern Audio (audio 2) input
29 Audio 3 input
30 H-drive output
31 Sandcastle output / horizontal fly input
32 Decoupling sound demodulator
33 QSS intercarrier output / AM output
34 EHT / overvoltage protection input
35 IF-PLL loop filter
36 Sound IF AGC
37 QSS output
38 IF video / selected CVBS output
39 Main supply voltage TV processor
40 Internal CVBS input
41 GND for TV processor
42 External CVBS input
43 GND for TV processor
44 SVHS-Y input
45 SVHS-C input
46 White stretch capacitor
47 CVBS output
48 Audio output / AM audio output
49 2nd IF video output
50 2nd RGB / YUV insertion input
51 Red input
52 Green input
53 Blue input
54 Beam current limiter input
55 Black current input / V-guaard input
56 Red output
57 Green output
58 Blue output
Analog supply of text decoder /
59
digital supply of TV processor
60 OTP programming voltage
61 Digital supply to core (3.3V)
62 X-tal GND
63 X-tal input
64 X-tal output
65 Programming reset
66 Digital supply to periphery (3.3V)
67 SCL1 (EEPROM)
68 SDA1 (EEPROM)
69 IR input
70 nc
71 SCL
72 SDA
73 MSP reset (IC301)
74 Mute
75 SVHS switching
76 L/L' switching
77 F blank MM
78 Program +
79 CVBS sync filter
80 Program -
IC301 (MSP34xx)
Level Pin Description
3.2V (3.2V) 1 nc
0V (0V) 2 GND
0V (0V) 3 GND
0V (0V) 4 Digital control input/output
0.75V (0.2V) 5 Digital control input/output
0V (3.9V) 6 GND
Standby (in normal operation it must be
0V (0V) 7
high)
2.3V (0V) 8 nc
8.0V (0.3V) 9 SCL
10 SDA
5.0V (0V)
11 nc
2.7V (0V)
12 nc
3.9V (0V)
13 nc
0V (0V)
14 nc
4.0V (0V)
15 nc
16 nc
3.0V (0.5V)
17 ADR bus clock output
1.0V (0V)
18 Digital circuit supply voltage
1.0V (0V)
19 Digital circuit supply ground
1.8V (0V)
20 nc
1.8V (0V)
21 nc
3.9V (0V)
22 nc
3.8V (0V)
23 nc (Ground)
4.3 (0V)
24 MSP RESET input
1.9V (0V)
25 Headphone sound output (R)
0V (0V)
26 Headphone sound output (L)
0V (0V)
27 Reference analog ground
2.2V (0V)
28 Speaker output (R)
0.4V (0V)
29 Speaker output (L)
3.7V (0V)
30 nc
3.7V (0V)
31 nc
2.3V (0.3V)
32 nc
0.6V (0.2V)
33 Scart 2 sound output (R)
2.0V (0V)
34 Scart 2 sound output (L)
3.4V (0.3V)
35 Reference analog ground
2.2V (0V)
36 Scart 1 sound output (R)
2.4V (0V)
37 Scart 1 sound output (L)
0.5V (0V)
38 Volume capacitor headphone
0.6V (0V)
39 Analog supply high voltage (8V)
3.0V (0V)
40 Volume capacitor speaker
8.0V (0.2V)
Ground for analog power supply high
3.8V (0V)
41
voltage
0V (0V)
42 Internal analog reference voltage
0V (0V)
43 Scart 4 input (L)
0V (0V)
44 Scart 4 input (R)
3.3V (0V)
45 Analog shield ground
0V (0V)
46 CINCH - sound input (L)
3.4V (0V)
47 CINCH - sound input (R)
2.8V (0V)
48 Analog shield ground
3.5V (0V)
49 Scart 2 sound input (L)
0.2V (0V)
50 Scart 2 sound input (R)
0.2V (0V)
51 Analog shield ground
2.6V (0V)
52 Scart sound 1 input (R)
2.6V (0V)
53 Scart 1 sound input (L)
2.6V (0V)
54 A/D converter reference Voltage
2.6V...3.4V (0V)
55 Mono sound input
4.6V...5.7V (0V)
56 Ground for analog power supply voltage
see oscillogr. 9
57 Analog power supply voltage (5V)
see oscillogr. 10
58 IF input 1
see oscillogr. 11
59 IF common reference for IF IN1/IN2
3.3V (3.3V)
60 IF input 2
61 Factory test mode enable (ground)
0V (0V)
62 Crystal osscillator input
3.3V (3.3V)
63 Crystal osscillator output
0V (0V)
64 nc (Ground)
–
–
0V (0V)
3.3V (3.3V)
3.3V (3.3V)
3.3V (3.3V)
3.3V (3.3V)
–
see oscillogr. 37
see oscillogr. 38
4.9V (0V)
0V (3.3V)
3.3V (3.3V)
3.3V (3.3V)
3.3V (3.3V)
3.3V (3.3V)
3.3V (1.8V)
3.3V (3.3V)
IC303, IC304 (TDA7263)
Level Pin Description
– 1 Left in
0V 2 Left in V
0V 3 Mute
0V 4 Right in V
0V 5 Right in
0V 6 GND
7 nc
4.9V
8 Right out
4.9V
9 VSS
see oscillogr. 37
10 Left out
see oscillogr. 38
11 nc
2.4V
12 Left in
2.4V
13 Mute
2.4V
14 Right in
4.9V
15 nc
0.7V
16 VSS
0.7V
17 nc
0.7V
4.9V
0V
IC501 (TDA835x)
0.7V
0V
Pin Description
0V
1 Input A
0V
2 Input B
4.9V
3 Supply voltage
2.1V
4 Output B
2.1V
5 GND
0V
6 Vertical flyback supply voltage
0V...2.1V
7 Output A
0V...2.1V
8 Guard output
0V...2.1V
9 Feedback input
0V...2.1V
0V
3.7V
IC601 (MC44608)
3.7V
0V
Pin Description
3.7V
1 Demag
3.7V
2 I sense
–
3 Control input
8.0V
4 GND
–
5 Driver
6 VCC
0V
7 nc
3.7V
8 VI
3.7V
3.7V
0V
IC701 (TDA6107)
3.7V
3.7V
Pin Description
0V
1 Red in
3.7V
2 Green in
3.7V
3 Blue in
0V
4 GND
3.7V
5 Black current output
3.7V
6 VDD supply
2.5V
7 Red out
3.7V
8 Green out
0V
9 Blue out
4.9V
1.5V
1.5V
0V
0V
2.3V
2.3V
0V
3 - 18
Chassis 14.2
Level
1.6V
1.6V
15.3V
1.6V
1.6V
0V
–
14.2V
28.0V
13.9V
–
1.6V
15.3V
1.6V
–
28.0V
–
Level
1.0V (0V)
0.9V (0V)
14.7V (0V)
7.6V (0.4V)
0V (0V)
45.6V (10.9V)
7.6V (0V)
0.3V (0V)
7.9V (0V)
Level
0.9V (0.0V)
01V (0.3V)
5V (5.5V)
0V (0V)
2.1V (0.1V)
12.3V (8.8V)
–
117V (117V)
Level
2.3V...2.5V
2.5V...2.7V
2.5V...2.7V
0V
4.5V...5.5V
190V
134V...137V
128V...130V
130V...137V
( * ) standby mode