Lenovo T420i manual Cru Id

Table 9. Parts list—Overall (continued)

No.	FRU (Overall)		FRU no.	CRU ID
		N9x, NAx, NBx, NFx, PAx, PBx, PCx, PFx, PGx, PHx, PKx, PLx, PMx, PNx,
		PPx, PQx, PRx, PSx, PTx, PUx, PVx, PWx, PXx, PYx, PZx, Q3x, Q4x, Q5x,
		Q6x, Q7x, Q8x, Q9x
	• 4236-CTO, 63x, MBx, N2x, N3x, N4x, N5x, N8x, N9x, NAx, NBx, NCx, NDx,
		NEx, NFx, NGx, NHx, NKx, NLx, NMx, NNx, NPx, NQx, NRx, NSx, NTx, NUx,
		NVx, NWx, NXx, NYx, P2x, P3x, P4x, P5x, P6x, P7x, P8x, P9x, PAx, PBx, PCx,
		PDx, PEx, PFx, PGx, PHx, PJx, PKx, PLx, PMx, PNx, PPx, PQx, PRx, PSx,
		PTx, PUx, PVx, PWx, PXx, PYx
	•	4237-CTO
	•	4238-CTO
4	Keyboard bezel assembly without fingerprint reader		04W1372	N
	• 4177-CTO, 25x, 26x, 28x, Q5x, QDx, QFx, QGx, QJx, QKx, QLx, QMx, QSx,
		R2x, R3x, RVx
	• 4178-CTO, 56x, 57x, 58x, 59x, 9Fx, 9Gx, 9Hx, 9Nx, 9Rx, A5x, A6x, A7x, AAx,
		ACx, AQx, ARx, BVx, BWx, BXx
	•	4179-CTO, G2x, GEx
	• 4180-CTO, 62x, 64x, LEx, LFx, LGx, LHx, LJx, LKx, LLx, LMx, M9x, MLx, NCx,
		NDx, NEx, PDx, PEx, PJx, Q2x
	• 4236-CTO, 62x, 64x, 65x, N6x, N7x
	•	4237-CTO
	•	4238-CTO
5	Modem daughter card (MDC)		60Y3207	N
	• 4177-CTO, 22x, 23x, 24x, 25x, 29x, 2Ax, 2Bx, 2Cx, 2Ex, 2Jx, 2Xx, 36x, GFx,
		GKx, GLx, GMx, Q4x, Q7x, QAx, QCx, QPx, QQx, QRx, QSx, R9x, RBx, RCx,
		RFx
	• 4178-CTO, 5Ax, 5Bx, 5Cx, 5Dx, 5Ex, 5Fx, 5Gx, 5Hx, 5Jx, 5Kx, 5Lx, 5Mx, 5Nx,
		5Px, 5Qx, 5Rx, 5Sx, 5Tx, 5Ux, 5Vx, 5Wx, 5Xx, 5Yx, 5Zx, 66x, 67x, 68x, 69x,
		6Ax, 6Hx, 6Jx, 6Kx, 6Lx, 6Qx, 6Rx, 6Sx, 6Tx, 6Xx, 6Yx, 6Zx, 82x, 83x, 84x, 92x,
		93x, 94x, 95x, 96x, 97x, 98x, 99x, 9Ax, 9Bx, 9Cx, 9Dx, 9Ex, A5x, A6x, A7x, AJx,
		AKx, AQx, ARx, BDx, BEx, BFx, BHx, BJx, BMx, BNx, BPx, BQx, BRx, BUx,
		BVx, BWx, BXx, BYx, BZx, C2x, C3x, C4x, CBx
	• 4179-CTO, G2x, G3x, G4x, G5x, G6x, G7x, G8x, G9x, GCx, GDx, GGx, GHx,
		GJx, GMx, GNx, GPx, GQx, GRx, GSx, GTx, GUx, GVx, GWx, GXx
	• 4180-CTO, J2x, J3x, J4x, K2x, K3x, K4x, K5x, K6x, K7x, K8x, K9x, KAx, KBx,
		KCx, KDx, KEx, KFx, KGx, KHx, KJx, KKx, KLx, KMx, KNx, KPx, KQx, KRx,
		KSx, KTx, KUx, KVx, KWx, KXx, KYx, KZx, L2x, L3x, L4x, L5x, L6x, L7x, L8x,
		L9x, LAx, LBx, LCx, LDx, LEx, LFx, LGx, LHx, LJx, LKx, LLx, LMx, LNx, LPx,
		LQx, LRx, LSx, LTx, LYx, LZx, M2x, M3x, M4x, M5x, M6x, M9x, MAx, MBx,
		MCx, MDx, MEx, MFx, MGx, MQx, MRx, MSx, MTx, MUx, MVx, MWx, MXx,
		MZx, N2x, N3x, N4x, N5x, N6x, N7x, N8x, N9x, NAx, NCx, NFx, PDx, PKx, PLx,
		PMx, PNx, PPx, PQx, PSx, PXx, Q3x, Q6x, Q7x, Q8x, Q9x
	• 4236-CTO, MBx, N2x, N3x, N4x, N5x, N6x, N7x, N8x, N9x, NAx, NBx, NCx,
		NDx, NEx, NFx, NGx, NHx, NKx, NLx, NMx, NNx, NPx, NQx, NRx, NSx, NTx,
		NWx, NXx, NYx, P2x, P3x, P4x, P5x, P6x, P8x, P9x, PBx, PCx, PDx, PEx,
		PHx, PJx
	•	4237-CTO
	•	4238-CTO
6	Speaker assembly		04W1633	N
			04W1634
7	Magnesium structure frame assembly		04W1629	N

134ThinkPad T420 and T420i Hardware Maintenance Manual