I've gone through the trouble of creating a pronto code list for my Hitachi 57F510 RP TV. I generated all the commands from 00 to FF for device 5A. Below is the list of commands that I found for this TV.

I'm looking for three commands that I don't see listed. "Guide", "PIP Mode" and "PIP Channel"

04 - 8 button
05 - 9 button
06 - Language
09 - Input button
0A - LC button (previous channel)
0B - Mute
0C - 0 button
0D - 1 BUTTON
0E - 2 BUTTON
0F - 3 BUTTON
10 - INFO button
12 - Vol +
15 - Vol -
17 - Power Toggle
18 - Channel - button
19 - Channel + button
1C - 4 button
1D - 5 button
1E - 6 button
1F - 7 button
21 - Input 1
22 - Input 2
23 - Input 3
24 - Input 4
28 - Channel +
29 - Channel -
2A - Vol -
2B - Vol +
2E - SELECT button
37 - CC Auto->On->Off
38 - Favorite button
3C - 1080i/540p toggle
3D - Input 5
3F - Power OFF
53 - Menu
58 - PIP
5E - Day/Night button
61 - Freeze/Pause button
64 - EXIT button
65 - 16:9 Aspect
66 - 16:9 Zoom Aspect
67 - 4:3 Standard Aspect
68 - 4:3 Expanded Aspect
69 - 4:3 Zoom1 Aspect
6A - 4:3 Zoom2 Aspect
6B - 540p
6C - 1080i
6F - Aspect button
70 - Arrow up button
71 - Arrow down button
72 - Arrow right button
73 - Arrow left button
74 - Day mode
75 - Night mode
76 - Antenna A
77 - Antenna B
78 - CC
80 - Contrast 100%
81 - Contrast 0%
82 - Contrast 50%
83 - Tint all green
84 - Tint all red
85 - Color 100%
86 - COlor 0%
87 - Bright 100%
88 - Bright 0%
89 - Sharp 100%
8A - Sharp 0%
8B - Audio Treble 100%
8C - Audio Treble 0%
8D - Audio Bass 100%
8E - Audio Bass 0%
8F - Balace all right
90 - Balace all left
91 - Volume FULL
92 - Factory reset (???)
93 - Split screen, reset to antenna (from cable) (???)
95 - Service menu
96 - Magic Focus
97 - WHITE screen (???)
98 - Service menu SUB BRIGHT
9A - Setup->CC menu & reset to antenna (???)
9B - Channel Scan
9C - Service Menu
9D - Split screen, both to channel 14 (???)
9E - "INITIAL:N" Magic Focus (Initialize Magic Focus???)
9F - DCAM
A0 - Channel +1
A1 - Channel +2
A2 - Channel +3
A3 - Channel +4
A4 - Channel +5
A5 - Channel +6
A6 - Channel +7
A7 - Channel +8
A8 - Channel -3
A9 - Channel -2
AA - Channel -1
AB - Channel +0 (???)
AC - Channel +1
AD - Channel +2
AE - Channel +3
AF - Channel +4
B0 - Channel -1
B1 - Channel -2
B2 - Channel -3
B3 - Channel -4
B4 - Channel -5
B5 - Channel -6
B6 - Channel -7
B7 - Channel -8
B8 - Channel -9
B9 - Channel +2
BA - Channel +1
BB - Channel +0 (???)
BC - Channel -1
BD - Channel -2
BE - Channel -3
BF - Channel -4
C0 - Volume +1
C1 - Volume +2
C2 - Volume +3
C3 - Volume +4
C4 - Volume +5
C5 - Volume +6
C6 - Volume +7
C7 - Volume +8
C8 - Volume +9
C9 - Volume +10
CA - Volume +11
CB - Volume +12
CC - Volume +13
CD - Volume +14
CE - Volume +15
CF - Volume +16
D0 - Volume -1
D1 - Volume -2
D2 - Volume -3
D3 - Volume -4
D4 - Volume -5
D5 - Volume -6
D6 - Volume -7
D7 - Volume -8
D8 - Volume -9
D9 - Volume -10
DA - Volume -11
DB - Volume -12
DC - Volume -13
DD - Volume -14
DE - Volume -15
DF - Volume -16

I've attached my pronto codes at a text file as well.

[edit]

While in DCAM mode:

59 - ROM READ
5A - ROM WRITE (PIP Mode???)

Attached is a very complete LIRC config file for the Hitachi 57F510 TV.

Please let me know if you find this useful.