Denon Dn-c620 - Dnc620 Professional Broadcast Cd Player, Руководство по обслуживанию

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Q003 : BD7956FS
No. Symbol Description No. Symbol Description
1 LDO- Loading driver negative output 28 DV
CC
PWM block control power supply
2 LDO+ Loading driver positive output 29 SLIN1 Sled driver 1 input
3 V
CC
BTL pre and Loading power supply 30 SLIN2 Sled driver 2 input
4 ACTIN1 Actuator driver 1 input 31 SLV
DD
Sled driver PowerMOS pre-supply
5 ACTIN2 Actuator driver 2 input 32 SLRNF1 Sled driver 1 current sense
6 TJMON Monitor of chip temperature 33 SLRNF2 Sled driver 2 current sense
7 BTHC
Capacitor connection terminal for spindle
current bottom holding
34 CTL1 Driver logic control 1 input
8 SPVM_S Spindle driver sense power supply 35 CTL2 Driver logic control 2 input
9 PGND1 Spindle driver power ground 1 36 SLGND Sled driver power ground
10 PGND2 Spindle driver power ground 2 37 SLO2- Sled driver 2 negative output
11 U Spindle driver output U 38 SLO2+ Sled driver 2 positive output
12 SPV
M
1 Spindle driver power supply 1 39 SLO1- Sled driver 1 negative output
13 V Spindle driver output V 40 SLO1+ Sled driver 1 positive output
14 fi n fi n 41 fi n fi n
15 PGND3 Spindle driver power ground 3 42 V
C
Reference voltage input
16 W Spindle driver output W 43 FG Frequency generator output
17 SPV
M
2 Spindle driver power supply 2 44 SPCNF Spindle driver feedback fi lter
18 SPRNF Spindle driver current sense 45 AGND BTL driver block power ground
19 HB Hall bias 46 LDIN Loading driver input
20 HU+ Hall amp.U positive input 47 ACTIN3 Actuator driver 3 input
21 HU- Hall amp.U negative input 48 AV
M
Actuator driver block power supply
22 HV+ Hall amp.V positive input 49 ACO3- Actuator driver 3 negative output
23 HV- Hall amp.V negative input 50 ACO3+ Actuator driver 3 positive output
24 HW+ Hall amp.W positive input 51 ACO2- Actuator driver 2 negative output
25 HW- Hall amp.W negative input 52 ACO2+ Actuator driver 2 positive output
26 SPIN Spindle driver input 53 ACO1- Actuator driver 1 negative output
27 DGND PWM block pre-ground 54 ACO1+ Actuator driver 1 positive output