Philips AZ9015 Service Manual page 13

PIN DESCRIPTION OF INTEGRATED CIRCUITS
TDA1300T – HF-PREAMPLIFIER AND LASER SUPPLY CIRCUIT (part of CD-drive VAM2103/08)
Pin Name Direction
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HF-preamp → CD10
1 O4
HF-preamp → CD10
2 O6
HF-preamp → CD10
3 O3
HF-preamp → CD10
4 O1
HF-preamp → CD10
5 O5
HF-preamp → CD10
6 O2
CD10 → HF-preamp
7 LDON
8 VDDL +2.7
HF-preamp →
9 VRFE
HF-preamp →
10 VRF
11 HG GND
CD10 → HF-preamp
12 LS
13 C external connection
→ HF-preamp
14 ADJ
15 GND GND
HF-preamp → laser diode
16 LO
monitor diode → HF-preamp
17 MI
18 VDD +3
19 I2 GND
diode array → HF-preamp
20 I5
diode array → HF-preamp
21 I1
diode array → HF-preamp
22 I3
diode array → HF-preamp
23 I6
diode array → HF-preamp
24 I4
MPC17A51VM – 4-CHANNEL H-BRIDGE SERVODRIVER
Pin Name Direction
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servo driver →
1 VG
2 DGND GND
→ servo driver
3 CLK
→ servo driver
4 OE
5 VLG +2.7
6 VIN12 +A
servo driver → focus actuator
7 OUT1A
8 PGND1 GND
servo driver → focus actuator
9 OUT1B
servo driver → track actuator
10 OUT2B
11 PGND2 GND
servo driver → track actuator
12 OUT2A
13 VIN1-2 +A
→ servo driver
14 CF2
CD10 → servo driver
15 ERR2
CD10 → servo driver
16 ERR1
→ servo driver
17 CF1
18 VR +1.4
19 AGND GND
→ servo driver
20 CF3
CD10 → servo driver
21 ERR3
CD10/µP → servo driver
22 ERR4
→ servo driver
23 CF4
24 VIN3-4 +A
servo driver → disc motor
25 OUT4A
26 PGND4 GND
servo driver → disc motor
27 OUT4B
servo driver → slide motor
28 OUT3B
29 PGND3 GND
servo driver → slide motor
30 OUT3A
31 VIN34 +A
32 VCG +2.7
→ servo driver
33 C2L
→ servo driver
34 C1L
→ servo driver
35 C1H
→ servo driver
36 C2H
3-1
Description
output of current amplifier 4
output of current amplifier 6
output of current amplifier 3
output of current amplifier 1
output of current amplifier 5
output of current amplifier 2
control pin for switching the laser on/off
laser supply voltage
equalized output voltage of sum signal of amplifiers 1...4
unequalized output
control pin for gain switch
control pin for double speed switch (switches equalization)
external capacitor (bandwidth of ALPC)
reference input
0V supply, substrate connection
current output to laser diode
laser monitor diode input
positive supply voltage
photo detector input 2 (not used)
photo detector input 5 (satellite)
photo detector input 1 (central)
photo detector input 3 (central)
photo detector input 6 (satellite)
photo detector input 4 (central)
Description
charge pump output, supply for pre-driver circuit
digital ground for control circuit
clock signal input
output enable
power supply input for control circuit
power supply input for CH1 and CH2 H-bridge driver block
CH1 H-bridge output A
power ground for CH1 H-bridge driver block
CH1 H-bridge output B
CH2 H-bridge output B
power ground for CH2 H-bridge driver block
CH2 H-bridge output A
power supply input for CH1 and CH2 H-bridge driver block
CH2 capacitor connection for phase compensation
CH2 error level input (radial error signal)
CH1 error level input (focus error signal)
CH1 capacitor connection for phase compensation
reference voltage input
analog ground for control circuit
CH3 capacitor connection for phase compensation
CH3 error level input (slide error signal)
CH4 error level input (disc motor speed error signal)
CH4 capacitor connection for phase compensation
power supply input for CH3 and CH4 H-bridge driver block
CH4 H-bridge output A
power ground for CH4 H-bridge driver block
CH4 H-bridge output B
CH3 H-bridge output B
power ground for CH3 H-bridge driver block
CH3 H-bridge output A
power supply input for CH3 and CH4 H-bridge driver block
power supply input for charge pump circuit
capacitor connection for charge pump
capacitor connection for charge pump
capacitor connection for charge pump
capacitor connection for charge pump
CS 46 698