Harman Kardon HK3400 - DISASSEMBLY PROCEDURES; Cabinet Top Removal; Front Panel Assembly Removal; Front P.C. Board Removal

DISASSEMBLY PROCEDURES (REFER TO PAGES 9 THROUGH 13)
[1] CABINET TOP (127) REMOVAL
Remove 6 screws (A) and then remove the Cabinet Top
(127).
[2] FRONT PANEL ASSEMBLY (AA) REMOVAL
1. Remove the Cabinet Top (127), referring to the pre-
vious step [1].
2. Disconnect the (CW15) from (CN15) on the Tuner P.C.
Board (PCB-1).
3. Pull out the Volume Knob (139) with the Volume
Indicator P.C. Board (PCB-16).
4. Disconnect the (CW100) from (CN100) on the Trans
Terminal P.C. Board (PCB-13).
5. Disconnect the (JL101, JL804) from (CN101A, CN804B)
on the Tuner P.C. Board (PCB-1).
6. Remove 3 screws (B) and 3 screws (C) and then
remove the Front Panel Assembly (AA).
[3] FRONT P.C. BOARD (PCB-14) REMOVAL
1. Remove the Front Panel Assembly (AA), referring to
the previous step [2).
2. Remove 11 screws (D) and then remove the Front P.C.
Board (PCB-14).
(4) TONE CONTROL P.C. BOARD (PCB-6) REMOVAL
1. Remove the Front Panel Assembly (AA), referring to
the previous step [2].
2. Pull out the Bass, Treble and Balance Knobs (140).
3. Remove the 3 nuts (E) and then remove the Tone
Control P.C. Board (PCB-6).
4. Disconnect the (CW401) from (CN401) on the Tone
Control P.C. Board (PCB-6).
5. If necessary, unsolder the lead wires.
[5] VOLUME P.C. BOARD (PCB-7) REMOVAL
1. Remove the Front Panel Assembly (AA), referring to
the previous step [2].
2. Disconnect the (CW504) from (CN504) on the Tuner
P.C. Board (PCB-1).
3. Remove the 1 nut (F) and then remove the Volume P.C.
Board (PCB-7).
4. If necessary, unsolder the lead wires.
[6] HEADPHONE P.C. BOARD (PCB-10) REMOVAL
1. Remove the Front Panel Assembly (AA), referring to
the previous step [2].
2. Pull out the Loudness Button (151).
3. Remove 2 screws (G) and then remove the Headphone
P.C. Board (PCB-10).
4. If necessary, unsolder the lead wires.
SPEAKER SWITCH P.C. BOARD (PCB-11) REMOVAL
1. Remove the Front Panel Assembly (AA), referring to
the previous step [2].
2. Pull out the Speaker Knob (140).
3. Remove 1 nut (H) and then remove the Speaker Switch
P.C. Board (PCB-11).
4. If necessary, unsolder the lead wires.
POWER SWITCH P.C. BOARD (PCB-15}) REMOVAL
1. Remove the Front Panel Assembly (AA), referring to
the previous step [2].
2. Pull out the Power Indicator P.C. Board (PCB-17) with
the Holder (187).
3. Remove 2 screws (I) and then remove the Power
Switch P.C. Board (PCB-15).
4. Open the lid of connector (CN11) on the Power Switch
P.C. Board (PCB-15) and then disconnect the lead wire.
[9] TUNER P.C. BOARD (PCB-1) REMOVAL
1. Remove the Cabinet Top (127), referring to the pre-
vious step [1].
2. Disconnect the (CW15, CW102, CW504) from (CN15,
CN102, CN504) on the Tuner P.C. Board (PCB-1).
3. Open the lid of connectors (CN12, CN501) on the Tuner
P.C. Board (PCB-1) and then disconnect the !ead wire.
4. Remove 3 screws (C) and 8 screws (J) and then remove
the Front Panel Assembly and Chassis.
5. Remove 10 screws (K) and then remove the Tuner P.C.
Board (PCB-1), Equalizer P.C. Board (PCB-2) and Moni-
tor P.C. Board (PCB-3).
6. If necessary, unsolder the lead wires.
. Pull out the Equalizer P.C. Board (PCB-2).
8. Pull out the Monitor P.C. Board (PCB-3).
“i
fd SUB WOOFER BOARD (PCB-4) REMOVAL
1. Remove the Cabinet Top (127), referring to the pre-
vious step [1].
2. Remove 2 screws (L) and then remove the Sub Woofer
P.C. Board (PCB-4).
3. Open the lid of connector (CN104) on the Sub Woofer
P.C. Board (PCB-4).
4. If necessary, unsolder the lead wires.
i] SPEAKER TERMINAL P.C. BOARD (PCB-12) REMOVAL
1. Remove the Cabinet Top (127), referring to the pre-
vious step [1].
2. Remove 2 screws (M) and then remove the Speaker
Terminal P.C. Board (PCB-12).
ia MAIN P.C. BOARD (PCB-5) REMOVAL
1. Remove the Speaker Terminal P.C. Board (PCB-12)},
referring to the previous step f11.
2. Remove 5 screws (N) and then remove the Main P.C.
Board (PCB-5) with Metal Fittings (167, 168).
3. If necessary, unsolder the lead wires.
i'd SECONDRY P.C. BOARD (PCB-9) REMOVAL
1. Remove the Cabinet Top (127), referring to the pre-
vious step [1].
2. Remove 6 screws (O) and then remove the Power
Transformer (T1) with Secondry P.C. Board (PCB-9)
and Trans Terminal P.C. Board (PCB-13).
f4 PRIMARY P.C. BOARD (PCB-8) REMOVAL
1. Remove the Secondry P.C. Board (PCB-9), referring to
the previous step f3.
2. Remove 2 screws (P) and then remove the Primary P.C.
Board (PCB-8).