Samsung FTQ352IWUW Service Manual download pdf (Page 55)

4-1 Failure Display Codes (01 Version)

* Explain of primary parts of Main PCB

ZNR1

(Varistor)

CN06CN06

Warmer Drawer RelayWarmer Drawer Relay

IC02(7812)IC02(7812)

IC03(7805)IC03(7805)

Low Voltage TransformerLow Voltage Transformer

CN02CN02 CN04CN04

CN01CN01 BlackBlack Blue + GrayBlue + Gray

DLBDLB

Warmer

drawer

Warmer

drawer

BAKEBAKE BROILBROIL

CN04,CN05CN04,CN05

CN05

CN03CN03

( Main PCB )( Main PCB )

( Sub PCB )( Sub PCB )

CN01CN01

Broil Relay

(Black, Brown or Brown, Black)

Broil Relay

(Black, Brown or Brown, Black)

Bake Relay

(Yellow, Gray or Gray, Yellow)

Bake Relay

(Yellow, Gray or Gray, Yellow)

DLB Relay

(Orange, Red or Red, Orange)

DLB Relay

(Orange, Red or Red, Orange)

Explatin of the function of primary parts.

CN01

This is to supply power with primary on Low voltage transformer, and AC120V with main PCB through

harness.

CN02

This is connector which is connected with Door plunger switch and Door lock switch.

(COM-NO, COM-NC)

CN03

This is connector which is connected with oven sensor.

CN04(some model)

This is to stop operating self-cleaning and steam mode if hot indicator lamp on cooktop is lighted with

being supplied with AC120V(L1, N).

CN05

This is consisted of 15 pin and take a role of getting a cable on keypad to connect with touch PCB.

CN06

This is connector which have door lock motor, cooktop warming center, and relay of oven lamp connected.

Ry-source relay(Ry01)

Circuit is designed to all relay worked after Ry-source ralay is being worked. (For safety)

DLB relay(Ry02)

Circuit is designed to have broil relay or worked after DLB relay is being worked by Double line break.

Broil relay(Ry03),

Bake relay(Ry04)

Broil relay(Ry03), Bake relay(Ry04), will be on-off working by micom signal after DLB relay is worked.

(Broil relay : It will not be problem with reversing the order in insering Black and Brown)

(Bake relay : It will not be problem with reversing the order in insering Yellow and Gray)

W/drawer relay(Ry06)

and T02 terminal

This is terminal to connect harness with relay to get heater on warming drawer work.

ZNR1

This is the element to protect main PCB, if over voltage is supplied with PCB.

IC02 This is to supply DC12V with main PCB by voltage regulator.

IC03 This is to supply DC5V with main PCB by voltage regulator.

W/Drawer Relay(Ry06)

and T02

This is terminal to connect harness with relay to get heater on warming drawer work (some model)

T01 terminal

This is the terminal to supply L1 voltage(120V) with warming drawer relay(Ry06), convection relay(Ry05)

(some model)

4. Troubleshooting

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Samsung FTQ352IWUW Service Manual Page 55

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