4.3. Assembly of DHIC 3 Location of Replacement & Removal Parts 5 Schematic Diagram 3.1. Location and Replacement of Resistors (R5041, R5042 & 5.1. Power Circuit (SA-HT740P/PC) R5072) 5.2. Power (Damp) Circuit (SA-HT740PX) 3.2. Location and Replacement of Capacitor (C5718) 5.3.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 6.1. Power P.C.B. (SA-HT740P/PC) 7.1. SA-HT740P/PC-S 6.2. Power P.C.B. (SA-HT743P/PC) 7.2. SA-HT740PX-S 6.3. Power P.C.B. (SA-HT940P/PC) 7.3. SA-HT743P/PC-S & SA-HT940P/PC-S 7 Replacement Parts List...
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 1 Background This technical document illustrates the checking procedures when upon detecting the error code of “F61”. After the unit is switched on, front display shows “F61”, and then unit shuts down. One possible problem is the DHIC located on the main unit (Power P.C.B) is not operating in good condition or damage.
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 2 Service Parts Replacement · Models applicable : SA-HT740P/PC-S, SA-HT740PX-S, SA-HT743P/PC-S and SA-HT940P/PC-S · Remedy: Replace the IC, and then apply a fresh coat of heat sink compound before mounting the heat sink on the IC. DHIC (IC5001)
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 3 Location of Replacement & Removal Parts This section includes the location of the parts for changes of improvement. 3.1. Location and Replacement of Resistors (R5041, R5042 & R5072) 3.2.
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 4 Assembling and Disassembling of DHIC “ATTENTION SERVICER” Some chassis components may be have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components.
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 4.2. Disassembly of DHIC 4.2.1. Removal of Top Cabinet Step 1 : Remove 3 screws on Rear Panel. Step 3 : Remove Top Cabinet as arrow shown.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 3 : Push and hold the Open Lock Gear and then push the Tray Assembly as arrows shown. 4.2.3. Removal of Front Panel · Follow the (Step 1) - (Step 3) of item 4.2.1.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 2 : Detach the FFC (CN5702). Step 2 : Disconnect the connector (CN2013) and detach the FFC (CN5707 and CN5705) then remove the Front Panel as arrow shown.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC · Follow the (Step 1) - (Step 2) of item 4.2.3. · Follow the (Step 1) - (Step 3) of item 4.2.4. · Follow the (Step 1) - (Step 3) of item 4.2.5.
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 4.3. Assembly of DHIC 4.3.1. Assembly of Main P.C.B. Step 5 : Insert the lead clamper (2 pieces) through the hole as arrows shown to hold the wires.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 9 : Fix the Rear Panel as arrow shown. Step 13 : Positioned the Tray Assembly at the tray guide (L). Step 10 : Fix 9 screws.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 15 : Ensure the Front Panel is properly located and fully catched. Step 14 : Push and hold the Open Lock Gear and then push the Tray Assembly as arrows shown.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 17 : Push and hold the Close Lock Gear and then push the Tray Assembly as arrows shown. Step 19 : Push and hold the Open Loack Gear and then push the Tray Assembly as arrows shown.
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SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC Step 21 : Fix 4 screws on L/R side of Top Cabinet. Step 22 : Fix 3 screws on Rear Panel.
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5 Schematic Diagram 5.1. Power Circuit (SA-HT740P/PC) SCHEMATIC DIAGRAM-12 POWER CIRCUIT : MAIN SIGNAL LINE :+B SIGNAL LINE :-B SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD...
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5.2. Power (Damp) Circuit (SA-HT740PX) SCHEMATIC DIAGRAM-13 POWER(DAMP) CIRCUIT :+B SIGNAL LINE :-B SIGNAL LINE : MAIN SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD -30_VDD IC5001...
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5.3. Power Circuit (SA-HT743P/PC) SCHEMATIC DIAGRAM-12 POWER CIRCUIT : MAIN SIGNAL LINE :+B SIGNAL LINE :-B SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD -30_VDD IC5001 RSN704D65-P...
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 5.4. Power (Damp) Circuit (SA-HT940P/PC) SCHEMATIC DIAGRAM-12 POWER(DAMP) CIRCUIT : MAIN SIGNAL LINE :+B SIGNAL LINE :-B SIGNAL LINE +50V +30_VDD +30_VDD PGND_30 PGND_30 -30_VDD -30_VDD IC5001...
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC 7 Replacement Parts List Below is the parts change information: 7.1. SA-HT740P/PC-S Model No. Ref. No. Original Part No. New Part No. Notes Part Name & Description...