Denon D-AJ03, Руководство по обслуживанию

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25
25 D-AJ03
COM6
COM5
COM4
COM3
COM2
COM1
V
DD
VLCD
VLCD1
TOP VIEW
VLCD3
V
SS
OSCO
OSCI
RES
CE
CL
DI
S1
S2
COM7 COM8 S60/CO
M
9
S59/C
O
M10
S58 S57 S56 S55 S54 S53 S52 S51 S50 S49 S48 S47 S46 S45 S44 S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10
S9 S8 S7 S6 S5 S4 S3
40
41 60
61
50
10 1 20
21 80
70
30
Pin No. Function
LA1844 Terminal Function
13 L output 3.17
14 R output 3.17
15 Pilot cancel output 2.27
16 Decoder input 2.33
17 PLL input 2.08
18 FM demodulator output 2.83
19 AM detector output (1.6)
20 S-meter, AM AGC 1.1
21 AM RF-IN 2.6
22 AFC 2.55
23 OSC 5.17
24 OSC buffer, FM SD adjust 3.16
24 23 22 21 20 19 18 17 16 15 14
13
1 2 3 4 5
6 7 8 9 10 11
12
AL
BUFF
AM
OS
AM
MI
AM
RF. AM
AG
AM
DE
COMP
TUNING
DRIVE
AM/FM
IF
S-CURVE
AM
IF
LEVEL
DET
FM
IF
FM
DE
RE GN
DECODER
ANTI-BIRDIE
PILOT
CANCEL
φ
STEREO
VCO
304kHz
FF
38K
Vc
PILOT
P-
π
∠
FF
19K
2
∠
FF
19K 0
1 12
13
24
TOP
VIEW
LA1844 (IC402)
LC75811W (IC501) LC75811W Terminal Function
Pin No. I/O Function
1~56 O Segment driver output
57 O Segment driver output
58 O Segment driver output
59~66 O Common driver output
67

Power supply for logic block
68

Power supply for LCD
69 I For LCD drive bias 3/4V external apply
70 I For LCD drive bias 2/4V external apply
71 I For LCD drive bias 1/4V external apply
72

Power supply pin
73 O Pin for oscillator
74 I Pin for oscillator
75 I Reset signal input
76 I
Input for serial data transfer
CE: Chip enable, CL: Sync clock, DI: Transfer data
77 I
Input for serial data transfer
CE: Chip enable, CL: Sync clock, DI: Transfer data
78 I
Input for serial data transfer
CE: Chip enable, CL: Sync clock, DI: Transfer data
79, 80 O Segment driver output
Voltage
(V)
1 FM IF input 2.34
2 AM MIX output 5.14
3 REG 2.33
4 AM IF input 2.32
5 GND 0
6 Tu-LED

7 ST-LED, IF-out for AM stereo

8 FM-DET

9 Vcc 5.15
10 AM/FM IF count out, control SW, mute SW 0
11 Phase comparator filter, FM/AM switch 4.06 (1.56)
12 Pilot detector filter, forcible mono, Vcc stop 4.14 (2.60)
Pin No. Function
Voltage
(V)
* Normally at FM (at AM)
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