Service manual

CD-SW250DVD
8 – 7
IC3201 VHiLC74230HNW: Single Chip LSI For DVD (LC74230HNW)
Block Pin No. Terminal Name I/O Function
Power 1 DVSS - Digital GND
EFM PLL 2 VCOCTL I VCO filter connection pin
3 PPD0 O Phase comparison filter connection pin
4 FPD0 O Frequency comparison filter connection pin
5 LF1 O Filter connection pin 1
6 LF2 O Filter connection pin 2
Power 7 AVDD18 - Analog power supply(1.8V)
EFM PLL 8* PSN O Voltage monitor pin (PCH control pin for phase comparison charge pump)
9 PISET I Voltage set pin for phase comparison charge pump
10 FISET I Voltage set pin for frequency comparison charge pump
11 CDFR I VCO oscillation range set pin for EFM replay PLL [for CD]
12 DVDFR I VCO oscillation range set pin for EFM replay PLL [for DVD]
Power 13 AVDD_FE - Analog power supply
14 AVSS_FE - Analog GND
JV 15 JVCPI I For JV
16 JVCPC O For JV
17 JVAO O Jitter output pin for EFM replay PLL clock
18 JVAIN I For JV
19* JVRVO O For JV (normally open)
Power 20 AVDD_FE - Analog power supply
21 AVSS_FE - Analog GND
22 DVSS - Digital GND
23 DVDD18 - Digital power supply (1.8V)
24 DACAVSS - Analog GND for video DAC
Video
DAC
25 VOUT O
Composite video image output for Video DAC
Power 26 DACAVDD33 - Analog power supply (3.3V) for Video DAC
Video
DAC
27 BOUT O
Video DAC-B signal output
Power 28 DACAVSS - Analog GND for Video DAC
Video
DAC
29 GOUT O
Video DAC-G signal output
Power 30 DACAVDD33 - Analog power supply (3.3V) for Video DAC
Video
DAC
31 ROUT O
Video DAC-R signal output
32 COMP I/O Video DACCOMP pin
33 RSET I/O Video DACRSET pin
Power 34 DACDVSS - Digital GND for Video DAC
Video
DAC
35 VREF I/O
Video DACVREF pin
Power 36 DACDVDD18 - Analog power supply (1.8V) for Video DAC
SDRAM
I/F
37 SDADD3 Oz
SDRAM address output (3)
38 SDADD2 Oz SDRAM address output (2)
39 SDADD1 Oz SDRAM address output (1)
40 SDADD0 Oz SDRAM address output (0)
41 SDADD10 Oz SDRAM address output (10)
42 SDBA1 Oz SDRAM bank-switch output (1)
43 SDBA0 Oz SDRAM bank-switch output (0)
44 SDCSB Oz SDRAM chip-select output
45 SDRASB Oz SDRAM RAS output
46 SDCASB Oz SDRAM CAS output
Power 47 DVDD33 - Digital power supply (3.3V)
SDRAM
I/F
48 SDWEB Oz
SDRAM write-enable output
49 DQML Oz SDRAM DQML output
50 SDATA7 I/O SDRAM data input/output (7)
51 SDATA6 I/O SDRAM data input/output (6)
52 SDATA5 I/O SDRAM data input/output (5)
Power 53 DVSS - Digital GND
SDRAM
I/F
54 SDATA4 I/O
SDRAM data input/output (4)
55 SDATA3 I/O SDRAM data input/output (3)