Sharp LC-26SH12U Service Manual - Page 34

A B C D E F G SDRAM SCHEMATIC DIAGRAM 8 (DIGITAL PCB) 7 6 5 4 3 FROM/TO POWER3 +3.3V VDDC_1.0V 2 GND +2.5V_IO MEM[1.8V] C2456 10 C ATSC/CLEAR CABLE ASIC IC IC2401 X242 (5/14 SDRAM) MEM_DQA0 MEM_DQA1 MEM_DQA2 MEM_DQA3 MEM_DQA4 MEM_DQA5 MEM_DQA6 MEM_DQA7 MEM_DQA8 MEM_DQA9 MEM_DQA10 MEM_DQA11 MEM_DQA12 MEM_DQA13 MEM_DQA14 MEM_DQA15 MEM_DQM0# MEM_DQM1# MEM_QS0 MEM_QS0# MEM_QS1 MEM_QS1# B2405 FCM1608KF-151T06 C2458 C2457 C2459 0.1 B 0.1 B 0.1 B C2461 0.1 B C2460 0.1 B 0 R24 0 P24 0 P25 0 P26 0 N24 0 M24 0 M25 0 M26 0 L25 0 L26 0 K24 0 K25 0 K26 0 J26 0 H24 0 H25 DQA0 DQA1 DQA2 DQA3 DQA4 DQA5 DQA6 DQA7 DQA8 DQA9 DQA10 DQA11 DQA12 DQA13 DQA14 DQA15 0 L24 0 H26 DQMA#0 DQMA#1 0 N25 0 N26 0 J24 0 J25 QSA0 QSA0# QSA1 QSA1# 3.3 E24 PESD_1 3.3 AB23 PESD_2 1.0 AC24 MPVDD 0 AD25 MPVSS MAA0 U26 0 MAA1 V24 0 MAA2 W26 0 MAA3 T25 0 MAA4 T24 0 MAA5 Y26 0 MAA6 W24 0 MAA7 Y25 0 MAA8 T26 0 MAA9 V26 0 MAA10 V25 0 MAA11 Y24 0 MAA12 U24 0 MAA13 U25 0 MAA14 W25 0 MAA15 AA26 0 MEM_AA0 MEM_AA1 MEM_AA2 MEM_AA3 MEM_AA4 MEM_AA5 MEM_AA6 MEM_AA7 MEM_AA8 MEM_AA9 MEM_AA10 MEM_AA11 MEM_AA12 MEM_AA13 MEM_AA14 MEM_AA15 JG2411 RASA# CASA# WEA# CSA# ODTA CKEA CLKA CLKA# AC26 0 AA24 0 AA25 0 AB25 0 AB24 0 AB26 0 R26 0 R25 0 MVREFD G25 1.8 MVREFS G26 MEMTEST AC25 1.8 0 R2412 TEST_YCLK AD26 0 15 +-1% C2462 0.1 B C2479 R2415 R2416 15 +-1% R2417 R2418 R2419 MRAS# MCAS# MRWE# MCS# MEM_ODT MCKEN MCLK MCLK# 0.1 B 15 +-1% 10K 1K +-1% 1K +-1% R2413 R2414 1K +-1% 1K +-1% 1.8 R23 0 T23 2.5 D24 2.5 L23 2.5 AC23 0 J23 0 M23 VDDRH0 VDDR1_0 D20 1.8 VSSRH0 VDDR1_1 D21 1.8 VDDR1_2 D22 1.8 VDDR1_3 F23 1.8 VDDR1_4 G23 1.8 VDDR1_5 G24 1.8 VDDR1_6 H23 1.8 VDDR1_7 K23 1.8 VDDR1_8 U23 1.8 VDDR1_9 V23 1.8 MEM_IO2.5_1 VDDR1_10 W23 1.8 MEM_IO2.5_2 VDDR1_11 Y23 1.8 MEM_IO2.5_3 VDDR1_12 AC19 1.8 VDDR1_13 AC20 1.8 VSSR_MEM_ST_A1 VDDR1_14 AC21 1.8 VSSR_MEM_ST_A0 VDDR1_15 AC22 1.8 C2463 C2464 C2465 C2466 C2467 C2468 C2469 C2470 C2471 C2472 C2473 C2474 C2475 C2476 C2477 C2478 0.1 B 1B 0.1 B 1B 0.1 B 1B 0.1 B 1B 0.1 B 1B 0.1 B 1B 0.1 B 1B 0.1 B 10 C 512Mbit DDR2 SDRAM IC IC2402 HYB18T512161BF-25 MEM_AA15 MEM_AA14 MEM_AA12 MEM_AA11 MEM_AA10 MEM_AA5 MEM_AA7 MEM_AA2 MEM_AA6 MEM_AA8 MEM_AA4 MEM_AA3 MEM_AA9 MEM_AA1 MEM_AA0 MCLK# MCLK MCKEN 0 L2 BA0 0 L3 BA1 0 R2 0 P7 0 M2 0 P3 0 P8 0 P2 0 N7 0 N3 0 N8 0 N2 0 M7 0 M3 0 M8 A12 A11 A10/AP A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 0 K8 CK 0 J8 CK 0 K2 CKE MCS# MRWE# MRAS# MCAS# 0 L8 CS 0 K3 WE 0 K7 RAS 0 L7 CAS MEM_DQM0# MEM_DQM1# MEM_ODT MEM_QS0 MEM_QS0# 0 F3 LDM 0 B3 UDM 0 K9 ODT 0 F7 LDQS 0 E8 LDQS MEM_QS1 MEM_QS1# 0 B7 UDQS 0 A8 UDQS 1.8 J2 VREF NC 0 A2 NC 0 E2 NC 0 L1 NC 0 R3 NC 0 R7 NC 0 R8 NC#A2 NC#E2 NC#L1 NC#R3 NC#R7 NC#R8 DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 B9 0 B1 0 D9 0 D1 0 D3 0 D7 0 C2 0 C8 0 F9 0 F1 0 H9 0 H1 0 H3 0 H7 0 G2 0 G8 0 VDDQ1 VDDQ2 VDDQ3 VDDQ4 VDDQ5 VDDQ6 VDDQ7 VDDQ8 VDDQ9 VDDQ10 A9 1.8 C1 1.8 C3 1.8 C7 1.8 C9 1.8 E9 1.8 G1 1.8 G3 1.8 G7 1.8 G9 1.8 VDD1 VDD2 VDD3 VDD4 VDD5 A1 1.8 E1 1.8 J9 1.8 M9 1.8 R1 1.8 VDDL J1 1.8 VSSDL J7 0 VSSQ1 VSSQ2 VSSQ3 VSSQ4 VSSQ5 VSSQ6 VSSQ7 VSSQ8 VSSQ9 VSSQ10 A7 0 B2 0 B8 0 D2 0 D8 0 E7 0 F2 0 F8 0 H2 0 H8 0 VSS1 VSS2 VSS3 VSS4 VSS5 A3 0 E3 0 J3 0 N1 0 P9 0 C2488 0.1 B C2489 1B MEM_DQA14 MEM_DQA12 MEM_DQA15 MEM_DQA9 MEM_DQA8 MEM_DQA13 MEM_DQA11 MEM_DQA10 MEM_DQA6 MEM_DQA7 MEM_DQA2 MEM_DQA3 MEM_DQA4 MEM_DQA0 MEM_DQA5 MEM_DQA1 C2481 C2482 C2483 C2484 C2485 C2492 0.1 B C2493 0.1 B C2494 0.1 B C2495 0.1 B C2496 0.1 B 1B 0.1 B 1B 0.1 B 1B C2497 1 B C2486 0.1 B C2498 1 B C2487 0.1 B C2499 1 B B2406 FCM1608KF-151T06 C2490 6.3V 220 MZA R2420 R2421 C2480 1K +-1% 1K +-1% 0.1 B 1 NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL. A B C H-3 D E F G H 8 7 6 5 4 3 2 PCBDH0 CEF276 H 1 H-4